SULLAIR 750H (01) PDF MANUAL

The air compressor should be operated only by those who have been trained and delegated to do so, and who have read and understood this Operator’s Manual. Failure to follow the instructions, procedures and safety precautions in this manual can result in accidents and injuries.

NEVER start the air compressor unless it is safe to do so. DO NOT attempt to operate the air compressor with a known unsafe condition. Tag the air compressor and render it inoperative by disconnecting and locking out all power at source or otherwise disabling its prime mover so others who may not know of the unsafe condition cannot attempt to operate it until the condition is corrected.

Use and operate the air compressor only in full compliance with all pertinent OSHA requirements and/or all pertinent Federal, State and Local codes or requirements.

DO NOT modify the compressor except with written factory approval.

Each day, walk around the air compressor and inspect for leaks, loose or missing parts, damaged parts or parts out of adjustment. Perform all recommended daily maintenance.

Inspect for torn, frayed, blistered or otherwise deteriorated and degraded hoses. Replace as required.

WARNING: Do NOT tow the compressor should its weight exceed the rated limit of the tow vehicle, as the vehicle may not brake safely with excess weight. See rated limit in tow vehicle Operator’s Manual, and review its instructions and other requirements for safe towing.

WARNING: This equipment may be tongue heavy. DO NOT attempt to raise or lower the drawbar by hand if the weight is more than you can safely handle. Use the screw jack provided or a chain fall if you cannot lift or lower it without avoiding injury to yourself or others. Keep hands and fingers clear of the coupling device and all other pinch points. Keep feet clear of drawbar to avoid injury in case it should slip from your hands.

A. Prior to hitching the air compressor to the tow vehicle, inspect all attachment parts and equipment, checking for (I) signs of excessive wear or corrosion, (II) parts that are cracked, bent, dented or otherwise deformed or degraded, and (III) loose nuts, bolts or other fasteners. Should any such condition be present, DO NOT TOW until the problem is corrected.

B. Back the tow vehicle to the compressor and position it in preparation for coupling the compressor.

C. If the compressor is provided with a drawbar latched in the vertical upright position, carefully unlatch drawbar and lower it to engage the coupling device. If not, raise drawbar with the jack to engage coupling device or otherwise couple the compressor to the towing vehicle.

D. Make sure the coupling device is fully engaged, closed and locked.

E. If chains are provided, pass each chain through its point of attachment on the towing vehicle; then hook each chain to itself by passing the grab hook over (not through) a link. Cross chains under the front of drawbar before passing them through points of attachment on towing vehicle to support the front of drawbar in case it should accidentally become uncoupled.

F. Make sure that the coupling device and adjacent structures on the towing vehicle (and also, if utilized, chain adjustment, brake and/or electrical interconnections) DO NOT interfere with or restrict motion of any part of the compressor, including its coupling device, with respect to the towing vehicle when maneuvering over any anticipated terrain.

G. If provided, make sure chain length, brake and electrical interconnections provide sufficient slack to prevent strain when cornering and maneuvering, yet are supported so they cannot drag or rub on road, terrain or towing vehicle surfaces which might cause wear that could render them inoperative.

H. CAUTION: Retract the front screw jack only after attaching the compressor to the tow vehicle. Raise the screw jack to its full up position and pull the pin connecting the jack to the drawbar. Rotate the screw jack to its stowed position, parallel to the drawbar, and reinsert the pin. Make sure the jack is secured in place prior to towing. If a caster wheel is provided on the screw jack it is part of the screw jack and can not be removed. Follow the same procedure for stowing away the wheeled jack as you would for the standard screw jack.

I. On two-wheeled models, fully retract front screw jack and any rear stabilizer legs following the same stowing procedure.

J. Make sure tires are in good condition and are the size (load range) specified and are inflated to the specified pressures. DO NOT change the tire size or type. Also, make sure wheel bolts, lugs or nuts are tightened to the specified torques.

K. If provided, make sure all dual stop, tail directional and clearance lights are operating properly and that their lenses are clean and functional. Also, make sure all reflectors and reflecting surfaces, including the slow moving vehicle emblem on compressors provided with same, are clean and functional.

L. Make sure all service air hoses (not air brake hoses) are disconnected or are fully stowed and secured on hose reels, if provided.

M. Make sure all access doors and tool box covers are closed and latched. If the compressor is large enough to hold a man, make sure all personnel are out before closing and latching access doors.

N. Make sure parking brakes in towing vehicle are set, or that its wheels are chocked or blocked, or that it is otherwise restrained from moving. Then, release the compressor parking brakes, if provided.

O. Make sure the compressor wheels are not chocked or blocked, and that all tie-downs, if any, are free.

P. Test running brake operation, including breakaway switch operation if provided, before attempting to tow the compressor at its rated speed or less when conditions prevail.

Q. DO NOT carry loose or inappropriate tools, equipment or supplies on or in the compressor.

R. DO NOT load this equipment with accessories or tools such that it is unbalanced from side to side or front to back. Such unbalance will reduce the towability of this equipment and may increase the possibility of tipping, rolling over, jackknifing, etc. Loss of control of the towing vehicle may result.

A. Observe all Federal, State, and Local laws while towing this equipment (including those specifying minimum speed).

B. DO NOT exceed the towing speeds listed below under ideal conditions. Reduce your speed according to posted speed limits, weather, traffic, road or terrain conditions:

1. Two axle four-wheel or three axle six-wheel steerable models: 15 MPH (24 km/h).

2. All other models: 55 MPH (88 km/h).

C. Remember that the portable air compressor may approach or exceed the weight of the towing vehicle. Maintain increased stopping distances accordingly. DO NOT make sudden lane changes, U-turns or other maneuvers. Such maneuvers can cause the compressor to tip, roll over, jackknife or slide and cause loss of control of the towing vehicle. Tipping, rolling over, etc. can occur suddenly without warning. U-turns especially should be made slowly and carefully.

D. Avoid grades in excess of 15° (27%).

E. Avoid potholes, rocks and other obstructions, and soft shoulders or unstable terrain.

F. Maneuver in a manner that will not exceed the freedom of motion of the compressor’s drawbar and/or coupling device, in or on the towing vehicle’s coupling device and/or adjacent structure whether towing forward or backing up, regardless of the terrain being traversed.

G. DO NOT permit personnel to ride in or on the compressor.

H. Make sure the area behind, in front of, and under the compressor is clear of all personnel and obstructions prior to towing in any direction.

I. DO NOT permit personnel to stand or ride on the drawbar, or to stand or walk between the compressor and the towing vehicle.

A. Park or locate compressor on a level surface, if possible. If not, park or locate compressor across grade so the compressor does not tend to roll downhill. DO NOT park or locate compressor on grades exceeding 15° (27%).

B. Make sure compressor is parked or located on a firm surface that can support its weight.

C. Park or locate compressor so the wind, if any, tends to carry the exhaust fumes and radiator heat away from the compressor air inlet openings, and also where the compressor will not be exposed to excessive dust from the work site.

D. On steerable models, park compressor with front wheels in straight-ahead position.

E. Set parking brakes and disconnect breakaway switch cable and all other interconnecting electrical and/or brake connections, if provided.

F. Block or chock both sides of all wheels.

G. If provided, unhook chains and remove them from the points of chain attachment on the towing vehicle, then hook chains to bail on drawbar or wrap chains around the drawbar and hook them to themselves to keep chains off the ground which might accelerate rusting.

H. Lower front screw jack and/or any front and rear stabilizer legs. Make sure the surface they contact has sufficient load bearing capability to support the weight of the compressor.

I. If a caster wheel is provided on the screw jack, follow the stowing procedure described in towing preparation.

J. Disconnect coupling device, keeping hands and fingers clear of all pinch points. If the compressor is provided with a drawbar, DO NOT attempt to lift the drawbar or if hinged, to raise it to the upright position by hand, if the weight is more than you can safely handle. Use a screwjack or chain fall if you cannot lift or raise the drawbar without avoiding injury to yourself or others.

K. Move the towing vehicle well clear of the parked compressor and erect hazard indicators, barricades and/or flares (if at night) if compressor is parked on or adjacent to public roads. Park so as not to interfere with traffic.

NOTE: While not towed in the usual sense of the word, many of these instructions are directly applicable to skid-mounted portable air compressors as well.

A. Open the pressure relief valve at least weekly to make sure it is not blocked, closed, obstructed or otherwise disabled.

B. Install an appropriate flow-limiting valve between the compressor service air outlet and the shutoff (throttle) valve, when an air hose exceeding 1/2″ (13 mm) inside diameter is to be connected to the shutoff (throttle) valve, to reduce pressure in case of hose failure, per OSHA Standard 29 CFR 1926.302 (b) (7) or any applicable Federal, State and Local codes, standards and regulations.

C. When the hose is to be used to supply a manifold, install an additional appropriate flow-limiting valve between the manifold and each air hose exceeding 1/2″ (13 mm) inside diameter that is to be connected to the manifold to reduce pressure in case of hose failure.

D. Provide an appropriate flow-limiting valve for each additional 75 feet (23 m) of hose in runs of air hose exceeding 1/2″ (13 mm) inside diameter to reduce pressure in case of hose failure.

E. Flow-limiting valves are listed by pipe size and rated CFM. Select appropriate valve accordingly.

F. DO NOT use tools that are rated below the maximum rating of this compressor. Select tools, air hoses, pipes, valves, filters and other fittings accordingly. DO NOT exceed manufacturer’s rated safe operating pressures for these items.

G. Secure all hose connections by wire, chain or other suitable retaining device to prevent tools or hose ends from being accidentally disconnected and expelled.

H. Open fluid filler cap only when compressor is not running and is not pressurized. Shut down the compressor and bleed the sump (receiver) to zero internal pressure before removing the cap.

I. Vent all internal pressure prior to opening any line, fitting, hose, valve, drain plug, connection or other component, such as filters and line oilers, and before attempting to refill optional air line anti-icer systems with antifreeze compound.

J. Keep personnel out of line with and away from the discharge opening of hoses, tools or other points of compressed air discharge.

K. DO NOT use air at pressures higher than 30 psig (2.1 bar) for cleaning purposes, and then only with effective chip guarding and personal protective equipment per OSHA Standard 29 CFR 1910.242 (b) or any applicable Federal, State and Local codes, standards and regulations.

L. DO NOT engage in horseplay with air hoses as death or serious injury may result.

M. This equipment is supplied with an ASME designed pressure vessel protected by an ASME rated relief valve. Lift the handle once a week to make sure the valve is functional. DO NOT lift the handle while machine is under pressure.

N. If the machine is installed in an enclosed area it is necessary to vent the relief valve to the outside of the structure or to an area of non-exposure.

O. DO NOT remove radiator filler cap until the coolant temperature is below its boiling point. Then loosen cap slowly to its stop to relieve any excess pressure and make sure coolant is not boiling before removing cap completely. Remove radiator filler cap only when cool enough to touch with a bare hand.

P. The ethyl ether in the replaceable cylinders used in diesel ether starting aid systems (optional) is under pressure. DO NOT puncture or incinerate those cylinders. DO NOT attempt to remove the center valve core or side pressure relief valve from these cylinders regardless of whether they are full or empty.

Q. If a manual blowdown valve is provided on the receiver, open the valve to ensure all internal pressure has been vented prior to servicing any pressurized component of the compressor air/fluid system.

WARNING: Do not attempt to operate the compressor in any classification of hazardous environment or potentially explosive atmosphere unless the compressor has been specially designed and manufactured for that duty.

A. Refuel at a service station or from a fuel tank designed for its intended purpose. If this is not possible, ground the compressor to the dispenser prior to refueling.

B. Clean up spills of lubricant or other combustible substances immediately, if such spills occur.

C. Shut off air compressor and allow it to cool. Then keep sparks, flames and other sources of ignition away and DO NOT permit smoking in the vicinity when adding fuel, checking or adding electrolyte to batteries, checking or adding fluid, checking diesel engine ether starting aid systems, replacing cylinders, or when refilling air line anti-icer systems antifreeze compound.

D. DO NOT permit fluids, including air line anti-icer system antifreeze compound or fluid film, to accumulate on, under or around acoustical material, or on any external surfaces of the air compressor. Wipe down using an aqueous industrial cleaner or steam clean as required. If necessary, remove acoustical material, clean all surfaces and then replace acoustical material. Any acoustical material with a protective covering that has been torn or punctured should be replaced immediately to prevent accumulation of liquids or fluid film within the material. DO NOT use flammable solvents for cleaning purposes.

E. Disconnect and lock out all power at source prior to attempting any repairs or cleaning of the compressor or of the inside of the enclosure, if any.

F. Keep electrical wiring, including all terminals and pressure connectors in good condition. Replace any wiring that has cracked, cut, abraded or otherwise degraded insulation, or terminals that are worn, discolored or corroded. Keep all terminals and pressure connectors clean and tight.

G. Turn off battery charger before making or breaking connections to the battery.

H. Keep grounded and/or conductive objects such as tools away from exposed live electrical parts such as terminals to avoid arcing which might serve as a source of ignition.

I. Replace damaged fuel tanks or lines immediately rather than attempt to weld or otherwise repair them. DO NOT store or attempt to operate the compressor with any known leaks in the fuel system. Tag the compressor and render it inoperative until repair can be made.

J. Remove any acoustical material or other material that may be damaged by heat or that may support combustion and is in close proximity, prior to attempting weld repairs.

K. Keep suitable fully charged Class BC or ABC fire extinguisher or extinguishers nearby when servicing and operating the compressor.

L. Keep oily rags, trash, leaves, litter or other combustibles out of and away from the compressor.

M. Open all access doors and allow the enclosure to ventilate thoroughly prior to attempting to start the engine.

N. DO NOT operate compressor under low over-hanging leaves or permit such leaves to contact hot exhaust system surfaces when operating the compressor in forested areas.

O. Ethyl ether used in diesel engine ether starting aid systems is extremely flammable. Change cylinders, or maintain or troubleshoot these systems only in well-ventilated areas away from heat, open flame or sparks. DO NOT install, store or otherwise expose ether cylinders to temperatures above 160 °F (71 °C). Remove ether cylinder from the compressor when operating in ambient temperatures above 60 °F (16°C).

P. DO NOT attempt to use ether as a starting aid in gasoline engines or diesel engines with glow plugs as serious personnel injury or property damage may result.

Q. DO NOT spray ether into compressor air filter or into an air filter that serves both the engine and the compressor as serious damage to the compressor or personal injury may result.

R. Antifreeze compound used in air line anti-icer systems contains methanol which is flammable. Use systems and refill with compound only in well-ventilated areas away from heat, open flames or sparks. DO NOT expose any part of these systems or the antifreeze compound to temperatures above 150 °F (66 °C). Vapors from the antifreeze compound are heavier than air. DO NOT store compound or discharge treated air in confined or unventilated areas. DO NOT store containers of antifreeze compound in direct sunlight.

S. Store flammable fluids and materials away from your work area. Know where fire extinguishers are and how to use them, and for what type of fire they are intended. Check readiness of fire suppression systems and detectors if so equipped.

T. DO NOT operate the compressor without proper flow of cooling air or water or with inadequate flow of lubricant or with degraded lubricant.

U. DO NOT attempt to operate the compressor in any classification of hazardous environment unless the compressor has been specially designed and manufactured for that duty.

WARNING: Disconnect and lock out all power at source and verify at the compressor that all circuits are de-energized to minimize the possibility of accidental start-up, or operation, prior to attempting repairs or adjustments. This is especially important when compressors are remotely controlled.

A. Keep hands, arms and other parts of the body and also clothing away from couplings, fans and other moving parts.

B. DO NOT attempt to operate the compressor with the fan, coupling or other guards removed.

C. Wear snug-fitting clothing and confine long hair when working around this compressor, especially when exposed to hot or moving parts.

D. Make sure all personnel are out of and/or clear of the compressor prior to attempting to start or operate it.

E. When adjusting the controls, it may require operation of the equipment during adjustment. DO NOT come in contact with any moving parts while adjusting the control regulator and setting the engine RPM. Make all other adjustments with the engine shut off. When necessary, make adjustment, other than setting control regulator and engine RPM, with the engine shut off. If necessary, start the engine and check adjustment. If adjustment is incorrect, shut engine off, readjust, then restart the engine to recheck adjustment.

F. Keep hands, feet, floors, controls and walking surfaces clean and free of fluid, water or other liquids to minimize the possibility of slips and falls.

A. Avoid bodily contact with hot fluid, hot coolant, hot surfaces and sharp edges and corners.

B. Keep all parts of the body away from all points of air discharge and away from hot exhaust gases.

C. Wear personal protective equipment including gloves and head covering when working in, on or around the compressor.

D. Keep a first aid kit handy. Seek medical assistance promptly in case of injury. DO NOT ignore small cuts and burns as they may lead to infection.

General Guidelines: Thermal Protection. The main exhaust piping routes exhaust gas from the engine to the Clean Emissions Module (CEM). Normal operating temperatures can reach up to 530 °C (986 °F). During regeneration of the Diesel Particulate Filter (DPF), the Auxiliary Regeneration Device (ARD) will be in operation, this creating temperatures above normal engine exhaust temperatures. Gas temperatures during the regeneration period can reach 750 °C (1382 °F).

T4 – WARNING: Increased DPF skin temperature and exhaust gas temperature may occur in the event of an unexpected engine/aftertreatment failure. An unexpected failure of the engine/aftertreatment may increase temperature at the DPF as high as 900 °C (1652 °F) gas temperature and 750 °C (1382 °F) skin temperature. This may result in fire, burn, or explosion hazards, which may result in personal injury or death. Do not expose flammable material or explosive atmospheres to exhaust gas or exhaust system components during regeneration. The aftertreatment skin temperature and the gas temperature are difficult to measure and/or simulate and are dependent upon many factors including the following: the nature of the engine/aftertreatment failure, the design and packaging of the aftertreatment, the engine speed/load conditions, the condition of the aftertreatment and ambient conditions. Therefore, the potential temperatures are provided as a guideline even under conditions of unexpected engine and/or aftertreatment failure. Proper precautions should be taken to ensure that the aftertreatment device is not mounted in close proximity to components that may be damaged by heat.

A. DANGER – INHALATION HAZARD! Death or serious injury can result from inhaling compressed air without using proper safety equipment. See OSHA standards and/or any applicable Federal, State, and Local codes, standards and regulations on safety equipment. DO NOT use air from this compressor for respiration (breathing) except in full compliance with OSHA Standards 29 CFR 1920 and any other Federal, State or Local codes or regulations.

B. DO NOT use air line anti-icer systems in air lines supplying respirators or other breathing air utilization equipment and DO NOT discharge air from these systems into unventilated or other confined areas.

C. Operate the compressor only in open or adequately ventilated areas.

D. Locate the compressor so that exhaust fumes are not apt to be carried towards personnel, air intakes servicing personnel areas or towards the air intake of any portable or stationary compressor.

E. Fuels, fluids and lubricants used in this compressor are typical of the industry. Care should be taken to avoid accidental ingestion and/or skin contact. In the event of ingestion, seek medical treatment promptly. Wash with soap and water in the event of skin contact. Consult Material Safety Data Sheet for information pertaining to the specific fluid.

F. Wear goggles or a full face shield when adding antifreeze compound to air line anti-icer systems.

G. Wear an acid-resistant apron and a face shield or goggles when servicing the battery. If electrolyte is spilled on skin or clothing, immediately flush with large quantities of water.

H. Ethyl ether used in diesel engine ether starting aid systems is toxic, harmful or fatal if swallowed. Avoid contact with the skin or eyes and avoid breathing the fumes. If swallowed, DO NOT induce vomiting and call a physician immediately.

I. Wear goggles or a full face shield when testing ether starting aid systems or when adding antifreeze compound to air line anti-icer systems. Keep openings of valve or atomizer tube of ether starting aid system pointed away from yourself and other personnel.

J. If air line anti-icer system antifreeze compound enters the eyes or if fumes irritate the eyes, they should be washed with large quantities of clean water for fifteen minutes. A physician, preferably an eye specialist, should be contacted immediately.

K. DO NOT store ether cylinders or air line anti-icer system antifreeze compound in operator’s cabs or in other similar confined areas.

L. The antifreeze compound used in air line antifreeze systems contains methanol and is toxic, harmful or fatal if swallowed. Avoid contact with the skin or eyes and avoid breathing the fumes. If swallowed, induce vomiting by administering a tablespoon of salt, in each glass of clean, warm water until vomit is clear, then administer two teaspoons of baking soda in a glass of clean water. Have patient lay down and cover eyes to exclude light. Call a physician immediately.

M. When handling DEF (Diesel Emissions Fluid) wear protective clothing. Tools and clothing that come in contact with DEF must be cleaned. IMPORTANT: It is very important that all electrical connectors are protected from coming in contact with DEF. If not, there is a risk that DEF will cause oxidation in the wiring that is not possible to clean. The resulting oxidation will result in a wiring/connection failure. Water and compressed air fail to remove DEF. If a connector has been in contact with DEF, it must be changed immediately to prevent the chemical from further migrating into the wiring cable harness, which happens at a speed of 0.6 m/h. WARNING: In case of DEF contact with eyes or skin, the affected area must be thoroughly rinsed with lukewarm water. If you breathe any fumes, make sure and breathe fresh air.

A. Keep the towing vehicle or equipment carrier, compressor hoses, tools and all personnel at least 10 feet (3 m) from power lines and buried cables.

B. Stay clear of the compressor during electrical storms! It can attract lightning.

C. Keep all parts of the body and any hand-held tools or other conductive objects away from exposed live parts of electrical system. Maintain dry footing, stand on insulating surfaces and DO NOT contact any other portion of the compressor when making adjustments or repairs to exposed live parts of the electrical system.

D. Attempt repairs in clean, dry and well lighted and ventilated areas only.

A. If the compressor is provided with a lifting bail, then lift by the bail provided. If no bail is provided, then lift by sling. Compressors to be air lifted by helicopter must not be supported by the lifting bail, but by slings instead. In any event, lift only in full compliance with OSHA Standards 29 CFR 1910 subpart N or any other Local, State, Military and Federal regulations that may apply.

B. Inspect lifting bail and points of attachment for cracked welds and for cracked, bent, corroded or otherwise degraded members and for loose bolts or nuts prior to lifting.

C. Make sure entire lifting, rigging and supporting structure has been inspected, is in good condition and has a rated capacity of at least the net weight of the compressor plus an additional 10% allowance for weight of water, snow, ice, mud, stored tools, and equipment. If you are unsure of the weight, then weigh compressor before lifting.

D. Make sure lifting hook has a functional safety latch or equivalent, and is fully engaged and latched on the bail.

E. Use guide ropes or equivalent to prevent twisting or swinging of the compressor once it has been lifted clear of the ground.

F. DO NOT attempt to lift in high winds.

G. Keep all personnel out from under and away from the compressor whenever it is suspended.

H. Lift compressor no higher than necessary.

I. Keep lift operator in constant attendance whenever compressor is suspended.

J. Set compressor down only on a level surface capable of supporting at least its net weight plus an additional 10% allowance for the weight of water, snow, ice, mud, stored tools, and/or equipment.

K. If the compressor is provided with parking brakes, make sure they are set, and in any event, block or chock both sides of all running wheels before disengaging the lifting hook.

A. Make sure all personnel are out of compressor before closing and engaging enclosure doors.

B. If the compressor is large enough to hold a man and if it is necessary to enter it to perform service adjustments, inform other personnel before doing so, or else secure the access door in the open position to avoid the possibility of others closing and possibly latching the door with personnel inside.

A. Observe all safety precautions mentioned elsewhere in this manual.

B. Batteries may contain hydrogen gas which is flammable and explosive. Keep flames, sparks and other sources of ignition away.

C. Batteries contain acid which is corrosive and poisonous. DO NOT allow battery acid to contact eyes, skin, fabrics or painted surfaces as serious personal injury or property damage could result. Flush any contacted areas thoroughly with water immediately. Always wear an acid-resistant apron and face shield when attempting to jump start the compressor.

D. Remove all vent caps (if so equipped) from the battery or batteries in the compressor. DO NOT permit dirt or foreign matter to enter the open cells.

E. Check fluid level. If low, bring fluid to proper level before attempting to jump start (not applicable to maintenance-free batteries).

F. DO NOT attempt to jump start if fluid is frozen or slushy. Bring batteries up to at least 60 °F (16 °C) before attempting to jump start or it may explode.

G. Cover open cells of all compressor batteries with clean dampened cloths before attempting to jump start.

H. Attempt to jump start only with a vehicle having a negative ground electrical system with the same voltage, and is also equipped with a battery or batteries of comparable size or larger than supplied in the compressor. DO NOT attempt to jump start using motor generator sets, welders or other sources of DC power as serious damage may result.

I. Bring the starting vehicle alongside the compressor, but DO NOT permit metal to metal contact between the compressor and the starting vehicle.

J. Set the parking brakes of both the compressor (if provided) and the starting vehicle or otherwise block both sides of all wheels.

K. Place the starting vehicle in neutral or park, turn off all non-essential accessory electrical loads and start its engine.

L. Use only jumper cables that are clean, in good condition and are heavy enough to handle the starting current.

M. Avoid accidental contact between jumper cable terminal clips or clamps and any metallic portion of either the compressor or the starting vehicle to minimize the possibility of uncontrolled arcing which might serve as a source of ignition.

N. Positive battery terminals are usually identified by a plus (+) sign on the terminal and the letters POS adjacent to the terminal. Negative battery terminals are usually identified by the letters NEG adjacent to the terminal or a negative (-) sign.

O. Connect one end of a jumper cable to the positive (POS) (+) battery terminal in the starting vehicle. When jump starting 24V compressors and if the starting vehicle is provided with two (2) 12V batteries connected in series, connect the jumper cable to the positive (POS) (+) terminal of the ungrounded battery.

P. Connect the other end of the same jumper cable to the positive (POS) (+) terminal of the starter motor battery in the compressor when jump starting 24V compressors, to the positive (POS) (+) terminal of the ungrounded battery in the compressor.

Q. Connect one end of the other jumper cable to the grounded negative (NEG) (-) terminal of the battery in the starting vehicle. When jump starting 24V compressors and if the starting vehicle is provided with two (2) 12V batteries connected in series, connect the jumper cable to the negative (NEG) (-) terminal of the grounded battery.

R. Check your connections. DO NOT attempt to start a 24V compressor with one 12V battery in the starting vehicle. DO NOT apply 24V to one 12V battery in the compressor.

S. Connect the other end of this same jumper cable to a clean portion of the compressor engine block away from fuel lines, the crank case breather opening and the battery.

T. Start the compressor in accordance with normal procedure. Avoid prolonged cranking.

U. Allow the compressor to warm up. When the compressor is warm and operating smoothly at normal idle RPM, disconnect the jumper cable from the engine block in the compressor, then disconnect the other end of this same cable from the grounded negative (NEG) (-) terminal of the battery in the starting vehicle. Then disconnect the other jumper cable from the positive (POS) (+) terminal of the battery in the compressor, or if provided with two (2) 12V batteries connected in series, from the ungrounded battery in the compressor, and finally, disconnect the other end of this same jumper cable from the positive (POS) (+) terminal of the battery in the starting vehicle or from the positive (POS) (+) terminal of the ungrounded battery in the starting vehicle, if it is provided with two (2) 12V batteries connected in series.

V. Remove and carefully dispose of the dampened cloths, as they may now be contaminated with acid, then replace all vent caps.

The energy control procedure defines actions necessary to lockout a power source of any machine to be repaired, serviced or set-up, where unexpected motion, or an electrical or other energy source, would cause personal injury or equipment damage. The power source on any machine shall be locked out by each employee doing the work except when motion is necessary during setup, adjustment or troubleshooting.

A. The established procedures for the application of energy control shall cover the following elements and actions and shall be initiated only by Authorized Persons and done in the following sequence:

1. Review the equipment or machine to be locked and tagged out.

2. Alert operator and supervisor of which machine is to be worked on, and that power and utilities will be turned off.

3. Check to make certain no one is operating the machine before turning off the power.

4. Turn off the equipment using normal shutdown procedure.

5. Disconnect the energy sources:

a. Air and hydraulic lines should be bled, drained and cleaned out. There should be no pressure in these lines or in the reservoir tanks. Lockout or tag lines or valves.

b. Any mechanism under tension or pressure, such as springs, should be released and locked out or tagged.

c. Block any load or machine part prior to working under it.

d. Electrical circuits should be checked with calibrated electrical testing equipment and stored energy and electrical capacitors should be safely discharged.

6. Lockout and/or Tagout each energy source using the proper energy isolating devices and tags. Place lockout hasp and padlock or tag at the point of power disconnect where lockout is required by each person performing work. Each person shall be provided with their own padlock and have possession of the only key. If more than one person is working on a machine each person shall affix personal lock and tag using a multi-lock device.

7. Tagout devices shall be used only when power sources are not capable of being locked out by use of padlocks and lockout hasp devices. The name of the person affixing tag to power source must be on tag along with date tag was placed on power source.

8. Release stored energy and bring the equipment to a “zero mechanical state”.

9. Verify Isolation: Before work is started, test equipment to ensure power is disconnected.

B. General Security

1. The lock shall be removed by the “Authorized” person who put the lock on the energy-isolating device. No one other than the person/persons placing padlocks and lockout hasps on power shall remove padlock and lockout hasps and restore power. However, when the authorized person who applied the lock is unavailable to remove it his/her Supervisor may remove padlock/padlocks and lockout hasps and restore power only if it is first:

a. verified that no person will be exposed to danger.

b. verified that the “Authorized” person who applied the device is not in the facility.

c. noted that all reasonable efforts to contact the “Authorized” person have been made to inform him or her that the lockout or tagout device has been removed.

d. ensured that the “Authorized” person is notified of lock removal before returning to work.

2. Tagout System—Tags are warning devices affixed at points of power disconnect and are not to be removed by anyone other that the person placing tag on power lockout. Tags shall never be by-passed, ignored, or otherwise defeated.

WARNING: CALIFORNIA PROPOSITION 65 WARNING

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects and other reproductive harm.

Battery posts, terminals and related accessories contain lead and other compounds known to the State of California to cause cancer and birth defects and other reproductive harm. Wash hands after handling.

Sullair compressors feature a single-stage, positive displacement, flood lubricated-type compressor unit. This unit provides continuous compression.

NOTE: With a Sullair compressor, there is no maintenance or inspection of the internal parts of the compressor unit permitted in accordance with the terms of the warranty.

Fluid (Sullair AWF lubricant is factory-filled) is injected into the compressor unit hoses and mixes directly with the air as the rotors turn, compressing the air. The fluid flow has three basic functions:

1. As coolant, it controls the rise of air temperature normally associated with the heat of compression.

2. Seals the clearance paths between the rotors and the stator and also between the rotors themselves.

3. Acts as a lubricating film between the rotors allowing one rotor to directly drive the other, which is an idler.

After the air/fluid mixture is discharged from the compressor unit, the fluid is separated from the air. At this time, the air flows through an aftercooler and moisture separator, if equipped, then to the service line.

The compressor cooling and lubrication system provides adequate lubrication and maintains the proper operating temperature. It includes a cooler, a hydraulically driven fan, a main filter, and a thermal valve. Fluid housed in the receiver tank serves as both coolant and lubricant.

Upon start-up, the fluid is cool and bypasses the cooler, flowing from the thermal valve directly to the compressor unit. As the compressor operates, the fluid temperature rises, causing the thermal valve element to shift. This forces a portion of the fluid to the radiator-type fluid cooler.

The hydraulic fan forces air through the cooler, removing heat from the fluid. The cooled fluid is then routed back to the thermal valve.

Before the fluid reaches the thermal valve’s set point, cooled fluid mixes with warmer fluid. When the fluid temperature reaches 170°F (77°C), the thermal element shifts completely, directing all fluid flow to the cooler.

The thermal valve includes a pressure relief valve that allows fluid to bypass the cooler if the cooler becomes plugged or frozen, ensuring continuous lubrication to the compressor.

After passing through the thermal valve, the fluid goes through the main fluid filter. This filter has a replaceable element and a built-in bypass valve (allowing flow if the filter is plugged or fluid viscosity is high). The filtered fluid then flows to the compressor unit to lubricate, seal, and cool the compression chamber, bearings, and gears.

The capacity control system regulates air intake based on compressed air demand. It uses an inlet valve, high and low pressure regulators, a pressure reducing regulator, a blowdown/running blowdown valve, the controller, an switch, and a selector switch (on dual pressure models).

START—0 to 65 PSIG (0 TO 4.5 BAR)

1. Keep the switch to the “ON” position to initialize the controller.

2. Once the controller LCD says “READY”, press the switch to the “START” position.

3. In “START”, the inlet valve is held closed by springs but cracked open by vacuum, allowing pressure build-up to 65 psig (4.5 bar).

4. Keeping the valve closed during start allows the engine to warm up unloaded.

5. Air pressure is contained in the receiver tank by the minimum pressure valve (set at 65 psig / 4.5 bar). When this pressure is reached, the valve opens, allowing air to the service valve.

6. After the engine warms up, the machine automatically transitions to “RUN” mode.

LOW PRESSURE/SINGLE PRESSURE—80 TO 100 PSIG (5.5 TO 6.9 BAR)

1. Set the switch to “LOW” (if applicable) and ensure the controller is in “RUN” mode.

2. Open the service valve.

3. Pressure from the 60 psig (4.1 bar) reducing regulator opens the inlet valve.

4. The controller increases engine speed to full load (1800 rpm).

5. As air demand decreases, the controller commands the engine to reduce speed to idle (1400 rpm) and the inlet valve closes.

6. If idle state (>1400 rpm) exceeds 10 minutes, engine rpm drops further to low idle (1000rpm) to save fuel, until air demand increases.

7. Single pressure machines (no “H” or “HH”) run in this “low” mode equivalent.

HIGH PRESSURE—80 TO 150 PSIG (5.5 TO 10.3 BAR) FOR “H” MODELS OR 80 TO 200 PSIG (5.5 TO 13.8 BAR) FOR “HH” MODELS

1. Set the switch to “HIGH”.

2. The low pressure regulator is blocked by the high/low solenoid valve.

3. The high pressure regulator takes control.

4. The 60 psig (4.1 bar) reducing regulator fully opens the inlet valve.

5. The controller commands maximum engine speed (1800 rpm).

6. When pressure reaches the high set point, the high pressure regulator cracks open, closing the inlet valve.

7. The controller returns the engine to idle until air demand increases.

SHUTDOWN

1. The blowdown valve is normally closed.

2. When the compressor shuts down, system pressure backs up to the inlet valve, closing the inlet valve check spring.

3. This sends a pressure signal to the blowdown valve, causing it to open and vent system pressure.

4. After venting, the blowdown valve spring returns it to the closed position.

The compressor unit discharges a compressed air/fluid mixture into the receiver tank.

The receiver tank functions as:

1. A primary fluid separator.

2. A compressor fluid storage sump.

3. Housing for the final fluid separator.

The air/fluid mixture enters the tank and hits the side wall. The change in direction and reduced velocity cause large fluid droplets to separate and fall to the bottom. Remaining fluid collects on the final separator element surface as air flows through. This collected fluid descends to the bottom of the separator.

A return line (scavenge tube) runs from the separator bottom to the compressor unit inlet. Pressure difference between the separator area and the compressor inlet returns the collected fluid to the compressor. An orifice (protected by a strainer) in the return line ensures proper flow.

The receiver tank is code rated. A minimum pressure/check valve downstream prevents service line air from bleeding back into the receiver on shutdown when run in parallel with other compressors.

Fluid is added via a capped fluid filler. A fluid level gauge glass allows visual monitoring.

WARNING: DO NOT remove caps, plugs and/or other components when compressor is running or pressurized. Stop compressor and relieve all internal pressure before doing so.

The aftercooled air system operates when compressed air temperatures need to be 10 to 25 °F (5 to 13 °C) above ambient temperature. It is controlled by two standard ball valves on large tier IV aftercooled models.

By shifting both ball valves to the aftercooled position, air flow from the receiver tank is forced through the aftercooler, producing aftercooled air.

Moving the ball valves to the standard position blocks flow through the cooler, producing standard (non-aftercooled) air.

Ambient air forced through the aftercooler by the hydraulic fan cools the compressed air passing through the aftercooler core.

Cooled air enters the moisture separator where condensation is removed and discharged. This condensation carries some oil and must be disposed of according to local regulations. A drain port is located on the frame curbside for condensate removal; it should never be plugged.

From the moisture separator, compressed air goes through discharge filters (if equipped) and then to the service valve.

NOTE: When operating below freezing, the hydraulic fan may slow or stop to compensate, aiding aftercooler use in cold temperatures. If Aftercooler Discharge Temperature (ADT) nears freezing, the controller warns of a freeze alert. Do not use aftercooled air if ADT is near freezing to avoid damaging the system. To operate in non-aftercooled mode, position both bypass valves to close off the aftercooled circuit.

The compressor inlet system consists of two air filters, a compressor air inlet valve, and interconnecting piping to the engine and compressor. Air filter restriction indicator gauges are located near the filter housings.

Each air filter is a 2-stage unit with a safety element and a dry element-type filter, capable of cleaning very dirty air. Check filters frequently in dusty conditions.

The controller monitors engine and compressor air filter restriction sensors. It will indicate when restriction becomes too high, signaling the need to change the filter element. Check indicators daily after start-up under normal conditions.

The compressor air inlet valve controls the amount of air intake based on air demand.

*Weights are approximate and subject to change. Skid mount unit data available upon request.

*Weights are approximate and subject to change. Skid mount unit data available upon request.

* Whichever occurs first. Refer to Maintenance section for oil filter change information.

Use of fluids other than Sullair AWF could result in Compressor Unit damage or failure, which may not be covered by warranty.

NOTE: For specific requirements, please refer to engine manufacturer operator’s manual. Lubrication and specifications are approximate and subject to change.

(Numbers in parentheses refer to item numbers in Figure 2-5 of the PDF)

1. Ensure the machine is on level ground.

2. Check fuel, coolant, and compressor fluid levels. Add fluids if necessary.

3. Check engine oil level.

4. Drain water from the fuel/water separator filter.

5. Close all drains.

6. Close the service valves.

7. For Dual Pressure units, ensure the Low/High Pressure Selector Switch is in the desired position.

8. Ensure the EMERGENCY STOP button is disengaged (pulled out).

9. Turn the Power On/Off switch to the “ON” position to energize the system. Wait for the controller to display “READY”.

10. Turn the Power On/Off switch to the “START” position. The engine should start. The compressor will initially run unloaded.

11. Once the engine warms up, the machine will automatically enter “RUN” mode and pressurize the system (load).

12. Open the service valve(s) as needed.

WARNING: Regeneration produces high exhaust temperatures. Ensure the machine is located away from flammable materials and personnel during regeneration.

Regeneration is the process of cleaning the Diesel Particulate Filter (DPF). It typically occurs automatically.

Automatic Regeneration:

1. The system determines when regeneration is needed based on soot load, engine hours, or fuel consumption.

2. The controller will display messages indicating regeneration is active.

3. The HEST (High Exhaust System Temperature) lamp (13) will illuminate during regeneration.

4. Normal operation can continue during automatic regeneration.

Manual (Forced) Regeneration:

Manual regeneration is required if the DPF lamp (12) illuminates and flashes, or if conditions prevent automatic regeneration.

1. Ensure the machine is parked safely, away from combustibles and people.

2. The engine must be running.

3. Press and hold the Force Regeneration side of the Regeneration Switch (22) for 5 seconds.

4. The HEST lamp (13) will illuminate.

5. Regeneration will begin and can take 30-60 minutes.

6. The HEST lamp turns off when regeneration is complete.

Inhibiting Regeneration:

If operating in an environment where high exhaust temperatures are unsafe, regeneration can be temporarily inhibited.

1. Press the Inhibit Regeneration side of the Regeneration Switch (22).

2. The Regeneration Inhibit Lamp (14) will illuminate.

3. This prevents both automatic and manual regeneration.

4. Remember to disable the inhibit function as soon as it is safe to allow regeneration to occur.

NOTE: Repeatedly inhibiting regeneration will lead to DPF plugging and eventually require service intervention.

(Numbers in parentheses refer to item numbers in Figure 2-5 of the PDF)

1. Close the service valve(s).

2. Allow the compressor to run unloaded for 3-5 minutes to cool down.

3. Turn the Power On/Off switch to the “OFF” position.

4. The controller will perform a shutdown sequence, venting receiver pressure via the blowdown valve.

5. After shutdown, ensure all pressure gauges read zero.

6. If required for maintenance or long-term storage, close fuel valves and activate the battery disconnect switch.

1. Check engine oil level.

2. Check compressor fluid level.

3. Check engine coolant level.

4. Check fuel level.

5. Drain water from fuel tank.

6. Drain water from fuel filter/water separator.

7. Check air filter restriction indicators.

8. Check DEF (Diesel Exhaust Fluid) level (if applicable) and refill as needed.

Refer to the engine manufacturer’s operation and maintenance manual for detailed coolant specifications and maintenance procedures.

Use a mixture of quality water (distilled or deionized recommended), low silicate antifreeze suitable for heavy-duty diesel engines, and Supplemental Coolant Additives (SCAs) as specified by the engine manufacturer.

Typically, a 50/50 mix of antifreeze and water provides protection down to -34°F (-37°C).

Check coolant level daily. Check SCA concentration and antifreeze protection level periodically, following the engine manual’s recommendations.

WARNING: Do not remove the radiator cap while the engine is hot. Allow the system to cool, then slowly loosen the cap to relieve pressure before removing completely.

Perform daily checks plus:

1. Check fan belt tension and condition.

2. Check battery level and terminals.

3. Change engine oil and filter(s). (Refer to Engine Operator Manual)

Perform daily checks plus:

1. Clean radiator and cooler exteriors.

Perform daily checks plus:

1. Change engine oil and filter(s). (Refer to Engine Operator Manual)

2. Analyze engine coolant. Add SCAs as needed.

3. Clean scavenge screen/orifice.

4. Service batteries and clean terminals.

5. Check tire pressure.

6. Lubricate door hinges.

Check engine valve lash. (Refer to Engine Operator Manual)

1. Change fuel filters.

2. Change primary fuel filter/water separator.

Replace compressor air filter element.

1. Change compressor fluid.

2. Change compressor fluid filter.

3. Change separator element.

4. Lubricate wheel bearings.

5. Torque wheel nuts/bolts.

Change DEF filter. (Refer to Engine Operator Manual)

Clean Diesel Particulate Filter (DPF). (Refer to Engine Operator Manual)

Check Level:

1. Check the fluid level daily with the compressor shut down and level.

2. Observe the sight glass on the receiver tank.

3. The level should be approximately mid-way up the sight glass.

Change Fluid:

1. Run the compressor for 5-10 minutes to warm the fluid.

2. Shut down the compressor and ensure all internal pressure is vented (check pressure gauge).

3. Slowly remove the fluid fill cap.

4. Place a suitable container under the fluid drain valve.

5. Open the drain valve and drain the fluid completely.

6. Close the drain valve.

7. Refill the receiver tank with new Sullair AWF fluid to the mid-point of the sight glass.

8. Replace the fill cap.

9. Start the compressor, check for leaks, and re-check the fluid level after shutdown.

Fluid Filter Change:

1. Shut down the compressor and vent all internal pressure.

2. Use a strap wrench to remove the old filter element.

3. Inspect the filter head sealing surface.

4. Apply a light film of clean compressor fluid to the gasket of the new filter element.

5. Screw the new filter element on by hand until the gasket contacts the head, then tighten an additional 1/2 to 3/4 turn.

6. Start the compressor and check for leaks.

Separator Element Change:

1. Shut down the compressor and vent all internal pressure.

2. Disconnect the return line (scavenge tube) from the separator cover.

3. Remove the bolts securing the separator cover.

4. Lift the cover and old separator element out of the receiver tank.

5. Clean the cover and tank sealing surfaces.

6. Insert the new separator element into the tank.

7. Place the cover back on, ensuring proper alignment. Ensure the staples grounding the element make contact with the cover.

8. Replace the bolts and tighten them in a criss-cross pattern to the specified torque.

9. Reconnect the return line.

10. Start the compressor and check for leaks.

1. Shut down the compressor.

2. Loosen the wing nut or unlatch the clips securing the air filter housing cover.

3. Remove the cover.

4. Pull out the primary filter element.

5. Inspect and, if necessary, remove the secondary (safety) element. Typically, replace the safety element every third primary element change or if damaged.

6. Clean the inside of the filter housing with a damp cloth. Do not use compressed air.

7. Insert the new safety element (if removed).

8. Insert the new primary element, ensuring it is properly seated.

9. Replace the cover and secure it with the wing nut or latches.

10. Reset the air filter restriction indicator.

Control system adjustments, including pressure regulator settings, should only be performed by trained personnel familiar with the specific Sullair control system.

Adjustments typically involve:

1. Shutting down the compressor and venting pressure.

2. Identifying the correct regulator (Low Pressure, High Pressure, Reducing Pressure).

3. Loosening the locknut on the regulator adjustment screw.

4. Turning the adjustment screw clockwise to increase pressure setting or counter-clockwise to decrease pressure setting.

5. Tightening the locknut after adjustment.

6. Starting the compressor and verifying the new pressure setting under load and unload conditions.

Note: Always refer to the specific Piping and Instrumentation Diagrams and Functional Descriptions in Section 2 of the manual for details on the control system components and their interaction. Improper adjustment can lead to inefficient operation or component damage.

The hydraulic system uses Dexron III ATF (Automatic Transmission Fluid).

Fluid Level Check:

1. Check the fluid level daily when the system is cold and shut down.

2. Observe the sight glass on the hydraulic reservoir.

3. The level should be visible in the sight glass.

Fluid Change:

1. Shut down the compressor.

2. Place a suitable container under the reservoir drain.

3. Remove the drain plug and drain the fluid.

4. Replace the drain plug.

5. Refill the reservoir with new Dexron III ATF to the proper level on the sight glass.

Filter Change:

1. Change the hydraulic filter element according to the maintenance schedule (typically every 1500 hours or yearly).

2. Shut down the compressor.

3. Unscrew the filter bowl or cover.

4. Remove the old filter element.

5. Inspect and clean the housing.

6. Install the new filter element.

7. Reassemble the filter housing.

8. Check fluid level after starting and running the system briefly.

NOTE: This is a summary. Refer to the detailed troubleshooting section in the PDF for more comprehensive causes and remedies.

Sullair warrants to the ultimate purchaser and each subsequent purchaser that this air compressor was designed, built and equipped to conform at the time of sale to the first retail purchaser, with all applicable U.S. E.P.A. Noise Control Regulations.

This warranty is not limited to any particular part, component or system of the air compressor. Defects in the design, assembly or in any part, component or system of the compressor which, at the time of sale to the first retail purchaser, caused noise emissions to exceed Federal standards are covered by this warranty for the life of the air compressor.

Yes, Federal law prohibits the following acts or the causing thereof:

1. The removal or rendering inoperative by any persons, other than for purposes of maintenance, repair, or replacement, of any device or element of design incorporated into any new compressor for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; or

2. The use of the compressor after such device or element of design has been removed or rendered inoperative by any person.

Among those acts presumed to constitute tampering are the acts listed below:

1. Removal or rendering inoperative of:

a. Engine Muffler or Exhaust System Components

b. Compressor Air Intake System Components

c. Enclosure Panels

d. Fan drive or Fan shroud

e. Acoustical Insulation Materials

The following table provides a cross-reference for Diagnostic Codes and Event Codes based on the CAT troubleshooting guide (KENR 6848).

The compressor is equipped with a hydraulically driven fan to provide cooling airflow for the compressor fluid, engine coolant, charge air, fuel, and hydraulic fluid. If equipped, cooling airflow is also available to provide aftercooled discharge air.

The system includes a fan and vane motor positioned in front of the main cooler pack. It provides cooling airflow for the main cooler assembly and also acts as the cooling airflow mechanism for aftercooled service air.

The fan motor is driven by dual pumps coupled together and driven by the engine’s auxiliary gear drive. A variable displacement piston pump drives the fan motor while a fixed displacement gear pump pulls fluid from the reservoir to maintain positive pressure at the inlet of the piston pump. This allows for a smaller fluid reservoir and more favorable inlet conditions.

The fan speed automatically varies depending on the ambient, compressor, engine coolant, charge air, and package discharge temperature. This provides fuel savings and reduces load on the engine at startup, assisting in cold starts and eliminating thermal cycling/shock.

The electrical system is comprised of not only the necessary equipment required to operate the compressor, but also a system to shut it down in the event of a malfunction. The components include:

An engine starter (with an integral solenoid)

Battery

A breaker protected alternator with a built-in voltage regulator

A compressor discharge temperature sensor

A receiver tank temperature switch (both shut down the compressor if temperature exceeds 250°F [121°C])

An ambient temperature sensor

A fuel level sensor (shuts down or prevents start if fuel level drops too low)

An engine coolant level sensor (located in the bottom of the deaeration tank, shuts down or prevents start if level drops too low)

A starter protection relay (prevents accidental starter engagement if engine is running or there is receiver tank pressure)

The controller will shut down the machine before the engine runs out of fuel if fuel supply drops near the bottom of the tank.

The electrical system also incorporates a lockable battery disconnect and an emergency stop switch.

The aftertreatment system (CEM) constantly monitors the soot levels of the exhaust gas via the DPF. If soot levels detected by the indicator reach above 80%, the engine Electronic Control Module (ECM) lights the DPF lamp on the controller screen and automatically triggers the ARD (diesel fuel injection) to ignite diesel fuel passing through the DPF until soot levels return to normal (< 10%).

During regeneration, the HEST Lamp on the controller screen should be lit.

Manual regeneration can be forced, if the emissions module does not automatically engage regeneration, by pressing and holding the REGEN Switch in the “force” position on the controller for 15 seconds. This manually forces the regeneration process at soot levels of 15% – 105%.

Automatic regeneration can be halted by engaging the REGEN Switch in the “inhibit” position on the controller. The DPF Inhibited Lamp on the controller screen should be lit if regeneration is inhibited. Inhibiting regeneration should not be a regular practice, as allowing soot load percentages to get above 116% could cause the unit to abnormally shut down and fault the DPF. The Unit will NOT be able to function until the faulted DPF is replaced. Force regeneration to reengage the automatic feature.

If the regeneration methods do not work and soot levels are at, or above 100%, shut the unit down immediately until the issue is resolved.

The following table outlines the system reaction and strategies at various stages of the soot loading profile:

**Pre-Emptive Idle Down: Programmable – Enable/Disable

***Rolling Shutdown Trigger

REGEN Disabled Service Level Regen Only

30 sec Rolling Shutdowns

DANGER: Regenerated exhaust gas can reach temperatures as high as 1300-1400°F. DO NOT come into direct contact with these gases.

WARNING: Under no circumstances should the soot level reach above 140% as this will fault the DPF and halt unit operation until it is replaced. If for some reason the regeneration methods mentioned in this document do not work and soot levels are close to, at, or above 116%, shut the unit down immediately until this issue is resolved.

Here are the overall dimensional specifications for 600H, 700HH, 750, 750H, 750HH models:

(I) Length including drawbar where applicable

(II) Over lifting bail

Here are the compressor specifications for 600H, 700HH, 750, 750H, 750HH models:

¹ Sound level measured per U.S. 40 CFR Ch. 1 Part 204

² Sound level measured per 2000/14/EC Outdoor Noise Directive

Here are the engine specifications for All Models:

Here are the specifications for 825, 900H, 1050 models:

(I) Length including drawbar where applicable

(II) Over lifting bail

¹ Sound level measured per U.S. 40 CFR Ch. 1 Part 204

² Sound level measured per 2000/14/EC Outdoor Noise Directive

The following table provides the Lubrication Guide for the compressor.

(I) Sullair part numbers for multi-viscosity lubricants are 250030-757 (5 gallons/18.9 liters), 250030-758 (55 gallons, 208 liter drum)

(II) Requirements for other fluids:

-Must meet Park Hannifan HF-0

-Maximum viscosity for cold weather operation: 1600 cSt at minimum ambient temperature

-Minimum viscosity at 225°F (107°C) 6cSt

The compressor hydraulic tank is filled from the factory with Sullair T4 hydraulic fan fluid. This is a specially formulated hydraulic fluid which meets all requirements of the hydraulic system at ambient operating temperatures ranging from -20°F to 125°F.

In high ambient temperature and high humidity conditions, condensed moisture may emulsify with the oil forming a “milky” color. ATF or SAE 10W is especially prone to this condition. The fluid should be changed if this condition develops.

CAUTION: DO NOT mix types of fluids. Combinations of different fluids may lead to operational problems such as foaming, filter plugging, orifice or line plugging.

Check the fluid level using the sight glass located on the hydraulic tank. Proper level is always visible in the sight glass.

If fluid is seen in the sight glass when the machine is not running, no fluid is needed.

The level should be checked when the compressor is shut down.

The following table lists the controls and indicators and their purpose:

NOTE: When restarting the compressor, the controller will not allow restart until system pressure falls below 10 psig (0.7 bar) or less. More than 10 psig (0.7 bar) can put extra load on the starter.

1. Toggle the switch, located on the controller, to the “on” position. The controller will power up and a self-diagnostic program will be initiated. During the initiation process, the gauges will wag (the needles on each gauge will sweep through its full scale) to verify all relevant sensors are operational. Also, a communication link will be established with the engine ECU. During this time, several messages will be displayed on the panel.

The operator should see the following messages during this step:

Checking CPRO Comm

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

Switch Module

When the system has successfully initialized, the following message will be displayed on the LCD Graphic Display:

Ready…

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

2. Prior to starting the unit, make certain that the Auxiliary Fuel Pump Switch is in the correct position. If the fuel source is on-board or within the unit, the switch needs to be placed in the “on” position. If the fuel source is off-board or detached from the unit, the switch needs to placed in the “off” position.

3. Toggle the switch to the “Start” position. You do not have to hold the switch in the “Start” position. The LCD panel will show the following message:

Engine Cranking

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

Once the compressor has started, the unit will enter a warm-up phase. At this point, the unit is not producing usable compressed air and the service valve should still be closed. The following message will be displayed on the LCD panel:

Start Initiated

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

Warm Up cycle

Once the proper operating conditions are met, the machine will automatically switch into run mode and provide pressurized service air.

WARNING: If the machine does not start successfully when starter disengages, the starter will automatically engage up to four more times after brief pauses to try and start the machine.

1. Close the service valve.

2. Place the switch in the “off” position. The following message will be displayed in the LCD graphic display:

Stop Initiated

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

Cool Down Cycle

3. The unit will continue to run, though it will not produce usable air. At the end of the cool down cycle, the engine will be shut down. The controller will stay powered up, and a new message will be displayed:

Monitoring Pressures

0 psi Serv. Pres. 0 psi Wet Pres.

0 psi Ctrl. Pres. 70% Fuel Level

The controller will continue to monitor the system pressures and will not power down until all pressures drop below 10 PSI (0.7 bar). This final process may take 3 to 5 minutes. Operator interaction is not necessary during this time as the controller will automatically disconnect power to all systems so that the battery is not inadvertently drained after shutdown.

WARNING: The E-Stop (emergency stop switch) should be used only in the event of an emergency. Refrain from using the E-Stop to shut the machine down during normal operations. All usage of the E-Stop is logged in permanent memory for use by service technicians when troubleshooting a machine. Non-emergency use of E-Stop is considered equipment abuse and could void the manufacturer’s warranty.

Prior to starting the compressor, it is necessary to perform a daily inspection. Perform the following maintenance operations to prevent unnecessary problems.

1. Check the fluid level in the compressor receiver tank. Should the level be low, simply add the necessary amount. If the addition of fluid becomes too frequent, a simple problem has developed which is causing this excessive loss. Refer to “Troubleshooting Guide” on page 87 under Excessive Compressor Fluid Consumption for a probable cause and remedy.

2. Drain water from the fuel/water separator.

3. Check the fuel level in the fuel tank.

4. Check the engine oil level.

5. Check the engine coolant level.

6. Check the hydraulic fluid level

After a routine start has been made, it is necessary to perform an inspection to ensure all operations are performing correctly. Perform the following inspections to prevent unnecessary problems.

1. Observe the instrument panel gauges and be sure they monitor the correct readings for their particular phase of operation.

2. After the compressor has warmed up, it is recommended that a general check on the overall compressor and instrument panel be made to assure that the compressor is running properly.

3. Check soot load percent

4. Check the air filter restriction gauges. Should they indicate restriction, replace the elements immediately. Refer to “Air filter assembly.” on page 78.

CAUTION: DO NOT remove caps, plugs and/or other components when compressor is running or pressurized. Stop compressor and relieve all internal pressure before doing so.

The coolant provided with Sullair portable air compressors is ethylene glycol based, 50/50 mixture, colored green, and should never be mixed with a coolant of a different color such as yellow, orange, or pink. If radiator coolant is to be added, for any reason, be sure that the coolant added is the same as what is in the cooling system, as well as what is recommended. Refer to the Maintenance Section of the Engine Operators Manual for proper engine coolant specifications and instructions. Ensure that the proper coolant is used when adding engine coolant to the machine and never mix different color coolants. An engine originally filled with a conventional green coolant should not be “upgraded” to an extended life coolant unless the cooling system is completely flushed and filled with water several times to remove all traces of the old coolant. If you are not sure of the coolant that is installed originally it is always best to flush the system using water as a base until flushed water is clear. Then, fill the system with the recommended coolant using only one brand/type. Cross contamination which is caused by adding different types of engine coolants will result in the coolant additives to deplete (dropout); thus leaving radiator surfaces unprotected. Corrosion to radiator surfaces will occur, thus reducing radiator life expectancy.

The following table shows Coolant Service Life:

CAUTION: The radiator and engine cooling system must be drained and flushed periodically. The required change interval is determined by the following table. Refer to the OEM Engine Manual for more information. Replace the coolant with a solution of 50% ethylene glycol and 50% water or as required for your geographic location. DO NOT use a leak sealing type of anti-freeze. Should a 100% water solution be used, a non chromate rust inhibitor must be added.

CAUTION: Dispose of fluids in accordance with applicable federal, state and local regulations.

NOTE: Caterpillar DEAC DOES NOT require a treatment with an SCA at the initial fill. Commercial heavy-duty coolant/ antifreeze that meets “ASTM D4985” or “ASTM D5345” specifications MAY require a treatment with an SCA at the initial fill. Read the label or the instructions that are provided by the OEM of the product.

After the initial 50 hours of operation, perform the following:

1. Clean the return line (scavenge line) orifice and strainer.

2. Change compressor fluid filter.

3. Change the hydraulic system fluid filter element.

4. Check Engine Operator’s Manual for required service.

After 100 hours of operation, perform the following:

1. Check the battery level and fill with water if necessary.

2. Check Engine Operator’s Manual for required service.

Perform the following after every 250 hours of operation:

1. Check alternator belt tension and adjust if needed.

2. Clean the radiator and cooler exterior. Depending on how contaminated the atmosphere may be, more frequent cooler and radiator cleaning may be necessary.

3. Check Engine Operator’s Manual for required service.

When not using Sullair AWF, change the compressor fluid and replace the fluid filter element. Refer to “Main Fluid Filter Servicing” on page 82.

When not using Sullair AWF, replace the fluid filter element only. Refer to “Main Fluid Filter Servicing” on page 82.

Perform the following after every 1000 hours of operation:

1. Clean the return line orifice and strainer.

2. Repack the wheel bearings on wheel-mounted units.

When using Sullair AWF, change the compressor fluid and replace the fluid filter element. Refer to Section 5.15: Parts Replacement & Adjustment Procedures on page 78.

Change hydraulic system fluid filter element.

1. When using Sullair T4 Hydraulic Fan Fluid, change fluid.

2. Change hydraulic system fluid filter element.

3. Remove and clean suction line strainer in hydraulic fluid reservoir. Refer to Section 5 on page 75 for detailed Maintenance Instructions.

4. Test operation of hydraulic fluid level switch. Refer to Refer to Section 5 on page 75 for Test Instructions.

1. Replace CEM spark plugs.

2. Check Engine Operator’s Manual for required service.

1. Replace the CEM DPF element.

2. Check Engine Operator’s Manual for required service.

1. Warm-up the compressor for 5 to 10 minutes to warm the fluid.

2. Shut the compressor off and relieve all internal pressure before proceeding.

3. Drain the fluid by opening the appropriate drain valve located in the frame on the curbside of the machine.

4. Close the valve when draining is complete.

5. Change the compressor fluid and replace the fluid filter element. For element replacement see procedure for servicing the fluid filter in this section.

6. Fill the receiver tank with fluid according to Section 3.3: Lubrication Guide—Compressor on page 65.

Most Dexter 12 1/4″ electric brakes have a self-adjusting feature. If manual adjusting is required, use the following procedure:

Brakes should be adjusted (1) after the first 200 miles of operation when the brake shoes and drums have “seated,” (2) at 3,000 mile intervals, (3) or as used and performance requires. The brakes should be adjusted in the following manner:

1. Jack up the trailer and secure on adequate capacity jack stands. Follow trailer manufacturer’s recommendations for lifting and supporting the unit. Make sure the wheel and drum rotates freely.

2. Remove the adjusting hole cover from the adjusting slot on the bottom of the brake backing plate.

3. With a screwdriver or standard adjusting tool, rotate the star wheel of the adjuster assembly to expand the brake shoes. Adjust the brake shoes out until the pressure of the linings against the drum makes the wheel very difficult to turn.

4. Then rotate the star wheel in the opposite direction until the wheel turns freely with a slight lining drag.

5. Replace the adjusting hole cover and lower the wheel to the ground.

6. Repeat the above procedure on all brakes. For best results, the brakes should all be set at the same clearance.

Your trailer brakes must be inspected and serviced immediately if a loss of performance is indicated. With normal use, servicing at one year intervals is usually adequate. With increased usage, this work should be done more frequently as required.

Magnets and shoes must be changed when they become excessively worn or scored, a condition which can reduce vehicle braking.

Clean the backing plate, magnet arm, magnet, and brake shoes.

Make certain that all the parts removed are replaced in the same brake and drum assembly.

Inspect for any loose or worn parts, stretched or deformed springs and replace as necessary.

Before reassembling, apply a light film of grease or anti-seize compound on the brake anchor pin, the actuation arm bushing and pin, and the areas on the backing plate that are in contact with the brake shoes and magnet lever arm.

Apply a light film of grease on the actuating block mounted on the actuation arm.

CAUTION: Do not get grease or oil on the brake linings, drums or magnets.

CAUTION: POTENTIAL ASBESTOS DUST HAZARD! Some older brake linings may contain asbestos dust, which has been linked to serious or fatal illnesses. Certain precautions need to be taken when servicing brakes:

1. Avoid creating or breathing dust.

2. Avoid machining, filing or grinding the brake linings.

3. Do not use compressed air or dry brushing for cleaning (dust can be removed with a damp brush).

Proper lubrication is essential to the proper functioning and reliability of your portable compressor axle. The wheel bearings are lubricated through the use of an oil-bath. Oil level should be checked every month.

The oil can be filled through the rubber plugged hole in the clear end cap. Oil should be replaced every year or 12,000 miles, whichever comes first.

The following table provides the recommended specifications for oil used in axle hubs with tapered roller bearings.

Approved Sources:

The correct end-play adjustment for the bearings is 0.001″ to 0.010″. Use the following procedure:

1. Remove the dust cover on the hub assembly. Disengage the tang washer holding the outer locking nut. Then remove the nut and tang washer.

2. Rotate the hub assembly slowly while tightening the inner locknut to 100 ft-lb. to seat the bearings.

3. Loosen the inner lock nut to remove the pre-load torque. DO NOT ROTATE THE HUB!

4. Finger tighten the inner lock nut and snug.

5. Back out the inner lock nut 1/4 to 3/8 of a turn.

6. Install the tang washer and outer lock nut. Bend two tangs over the inner lock nut. Torque the outer lock nut to 150 ft-lbs., insuring the inner lock nut does not turn. Bend two tangs over the flats on the outer lock nut to secure.

7. Install the dust cover and refill the hub assembly with new oil.

The main fluid filters are located schematically in the lubricant line between the receiver tank and the compressor unit. The main filter elements are replaceable. For installation of the filter elements, follow the procedure explained below:

1. The compressor MUST be shut off and system pressure MUST be relieved.

2. Position a suitable container beneath the elements to catch fluid drainage.

3. Remove elements using a suitable tool.

4. Rotate each element counterclockwise to remove.

5. Remove element and discard. These elements are not cleanable.

6. Make certain that the mounting surfaces and filter heads are clean.

7. Apply a light film of clean fluid to each element gasket surface.

8. Center the new elements on filter housing heads and tighten until the filter gaskets make contact with the filter housing. After gaskets make contact, tighten 1/2 to 2/3 of a turn.

9. Run compressor and check for leaks.

1. Warm-up the compressor for 5 to 10 minutes to warm the fluid.

2. Shut the compressor off and relieve all internal pressure before proceeding.

3. Drain the fluid by opening both the appropriate drain valve located in the frame as well as the valve on the bottom of the hydraulic reservoir. Remove filler cap during draining.

4. Close the valves when draining is complete.

5. Fill the reservoir with fluid according to Section 3.3: Lubrication Guide—Compressor on page 65.

The filter is located near the hydraulic fluid reservoir and is a cartridge style filter. Replace as follows:

1. Remove filter canister with a wrench.

2. Remove and dispose of filter element.

3. Clean gasket sealing surface.

4. Apply a light film of fluid to the element seal.

5. Screw the canister to the filter head. Tighten to 20 lb-ft (27.1 Nm).

6. Run compressor and check for leaks.

With hydraulic reservoir empty, power up controller and confirm that a low hydraulic fluid level warning is displayed. If no warning is present, repair switch and/or wiring.

Service strainer as follows:

1. Disconnect hose and remove fitting.

2. Remove strainer from tank.

3. Clean and dry strainer.

4. Replace strainer and fitting being careful not to damage O-rings. Replace O-rings if they are damaged or distorted.

5. Reconnect hose, start compressor and check for leaks.

Use the following procedure for separator replacement:

1. Remove the air receiver tank lid by removing the hex head capscrews and washers.

CAUTION: To assist with the removal of the tank lid, Sullair has provided a jack bolt at the bottom of the lid pivot shaft. Simply jack the lid up until it will clear the dowel pin located on the top tank flange underneath the lid. Rotate out of the way.

2. Remove the elements from the separator chamber by gently rocking back and forth and pulling upward and discarding.

3. Before installing the new separator elements, make sure to lubricate the sealing O-ring on each element with a lubricating compound (i.e. Silglyde).

4. Install the new separator elements by firmly pressing downward until the element is fully seated on the baffle plate inside the tank.

5. Next, inspect the tank flange O-ring and replace if necessary. Before installing the lid, re lubricate the O-ring (i.e. Silglyde). Reinstall the tank lid.

6. Install the capscrews and washers finger tight, then gradually tighten in a crisscross pattern in 4 to 5 steps. Always tighten the capscrews alternately at opposite sides of the cover. Torque lubricated capscrews to 322 ft-lbs. (440 N·m).

7. Clean or replace fluid return line strainer.

8. Clean the fluid return line orifice installed in the side of the compressor unit air end.

Air filter maintenance should be performed when indicated on the instrument panel compressor air filter warning lamp. The air filters are both equipped with a primary element and a secondary element each.

The secondary element must be replaced after every third primary element change.

DO NOT reconnect the secondary element once it is removed.

1. Clean the exterior of the air filter housing.

2. Remove the service cover by unlatching the four hook latches.

3. Remove the primary filter from the housing.

4. Clean the interior of the housing by using a damp cloth. DO NOT blow out dirt with compressed air as this may introduce dust downstream of the filter.

5. When it becomes necessary to remove the secondary element, pull the element out of the housing.

6. Install the new secondary element over the rod.

7. With the secondary element in place, replace the primary element.

1. Place a bright light inside the element to inspect for damage or leak holes. Concentrated light will shine through the element and disclose any holes.

2. Inspect all gaskets and gasket contact surfaces of the housing. Should faulty gaskets be evident, correct the condition immediately.

3. If the clean element is to be stored for later use, it must be stored in a clean container.

4. After the element has been installed, inspect and tighten all air inlet connections prior to resuming operation.

1. Place the element in position over the secondary element.

2. Install the cover with clean-out port pointing down. Clamp in place using all latches located on canister.

Prior to adjusting the control system, it is necessary to determine the desired operating pressure range as well as the maximum pressure at which the machine is to operate. This pressure must not exceed the maximum operating pressure which is stamped on the machine serial number plate.

1. Start the machine and let it warm-up and enter full “run” mode.

2. Open service valve slightly until engine tries to speed up. Slowly close the service valve. With service valve closed, check and adjust the pressure at the reducing regulator to a minimum of 60 psig (4.1 bar) and not to exceed 85 psig (5.2 bar). With service valve still closed adjust the back pressure regulator so the service pressure is between 115 to 125 psig (7.9 to 8.6 bar) for standard machines, 165 to 175 psig (11.4 to 12.1 bar) for “H” machines, and 190 to 200 psig (13.1 to 13.8 bar) for “HH” machines with the engine at 1400 rpm. Open the service valve to load the compressor to maintain a service pressure of 100 psig (6.9 bar) for standard machines, 150 psig (10.3 bar) for “H” machines, and 175 psig (12.1 bar) for “HH” machines. Operating speed should be 1800 RPM on the controller panel. If not, repeat step, or adjust the unload service pressure up or down as needed until desired pressure is maintained and engine speed is 1800 rpm.

Prior to adjusting the control system, it is necessary to determine the desired operating pressure range as well as the maximum pressure at which the machine is to operate. This pressure must not exceed the maximum operating pressure which is stamped on the machine serial number plate.

1. Start the machine and let it warm-up and enter full “RUN” mode.

2. Open service valve slightly until engine tries to speed up. Slowly close the service valve. With service valve closed, check and adjust the pressure at the reducing regulator to a minimum of 60 psig (4.1 bar) and not to exceed 85 psig (5.2 bar). With service valve still closed, and the switch in the “Low” position, adjust the low-pressure back-pressure regulator so the service pressure is between 115 to 125 psig (7.9 to 8.6 bar) with the engine at 1400 rpm. Open the service valve to load the compressor to maintain 100 psig (6.9 bar) discharge pressure. Operating speed should be 1800 RPM on the controller panel. If not, repeat step, but adjust the unload service pressure up or down as needed until 100 psig (6.9 bar) is maintained when engine speed is 1800 rpm.

3. For 150 psig (10.3 bar) “H” machines, turn the switch to “High” position. Close the service valve and set the “High” pressure control regulator to maintain 165 to 175 psig (11.4 to 12.1 bar) discharge pressure. Open the service valve to maintain 150 psig (10.3 bar) and check for 1800 RPM full-load speed. If lower speed is observed, raise the setting of the low pressure control regulator until rated speed is achieved.

4. For 175 psig (12.1 bar) “HH” machines, turn the switch to “High” position. Close the service valve and set the “High” pressure control regulator to maintain 190 to 200 psig (13.1 to 13.8 bar) discharge pressure. Open the service valve to maintain 175 psig (12.1 bar) and check for 1800 RPM full-load speed. If lower speed is observed, raise the setting of the low pressure control regulator until the desired speed is achieved.

5. For 200 psig (13.8 bar) “HH” machines, turn the switch to “High” position. Close the service valve and set the “High” regulator to 215 to 225 psig (14.8 to 15.5 bar) discharge pressure. Open the service valve to maintain 200 psig (13.8 bar) and check for 1800 RPM full-load speed. If lower speed is observed, raise the setting of the low pressure control regulator until the desired speed is achieved.

The following table provides a troubleshooting chart for common symptoms, probable causes, and remedies. It is based on data obtained from factory tests and real applied situations. Note that these may not be the only problems that can occur.

General checks to perform when troubleshooting include:

– Check for loose wiring.

– Check for damaged piping.

– Check for parts damaged by heat or an electrical short circuit, usually apparent by discoloration or a burnt odor.

Should your problem persist after making the recommended check, consult your nearest Sullair representative or the Sullair.

NOTE: Additional troubleshooting tips are available in the Controller Manual. Sullair Part No. 02250201-742.

The following annual inspections should be performed and logged for proper noise emission maintenance:

1. Annual Muffler and Exhaust System Inspection: Inspect muffler(s) and engine exhaust system to make sure all parts are securely mounted, all joints and connections are tight, and the muffler is in good condition. DO NOT operate compressor with a defective exhaust system. Remove and replace any defective parts.

2. Annual Air Filter(s) and Air Inlet System Inspection: Inspect the air filter(s) and entire air inlet system to make sure all parts are securely mounted, all joints and connections are tight, there are no other leaks in the system, and the filter element(s) are intact. DO NOT operate compressor with defective air inlet system. Remove and replace any defective parts.

3. Annual Engine Vibration Mount Inspection: Inspect engine vibration mounts for security of attachment and to make sure the resilient parts are intact. DO NOT operate compressor with a defective engine mounting system. Remove and replace defective parts.

4. Annual Frame, Canopy, and Parts Inspection: Inspect frame, canopy and parts for security of attachment. Make sure there are no missing or deformed members, including hinged doors, covers and their fastening devices. DO NOT operate compressor with defective frame, canopy and parts. Remove and replace defective parts.

5. Annual Acoustical Materials Inspection: Inspect all acoustical materials, if any, for security of attachment. Make sure there is no material missing or damaged. Clean or replace, if necessary. DO NOT operate compressor with defective acoustical material. Remove and replace defective parts.

6. Annual Inspections for Proper Operation of All Systems: Operate compressor and inspect to make sure all systems are operating properly and that engine runs at rated speed and pressure. DO NOT operate a malfunctioning or improperly adjusted compressor. Repair or adjust, per instructions in Operator’s Manual, as required.