PROMATE PM4400IO (01) PDF Document

Failure to follow safety guidelines may cause personal injury. Always read and observe all warnings on the generator and in the operator manual.

Exhaust Precautions:

• Never inhale exhaust gasses. They contain carbon monoxide, a colorless, odorless, and extremely dangerous gas that can cause unconsciousness or death.

• Never operate the generator indoors or in a poorly ventilated area, such as a tunnel or cave. Use extreme care when operating near people or animals. Keep the exhaust pipe free of unwanted objects.

Refueling Precautions:

• Refueling should be done outside or in a well-ventilated area. Before refilling, turn off the generator.

• DO NOT overfill the tank. If fuel is spilled, wipe it away carefully before starting the engine.

Other Safety Precautions:

• Hot Parts: The muffler and other engine parts become very hot. Operate the engine in a safe area and keep children away while it is in use.

• Location: DO NOT use near flammables. Use it at least 1 meter away from buildings or other facilities. Avoid using on soft ground.

• During Use: DO NOT tip or move the generator while it’s running. DO NOT cover it with a box or fence it off. DO NOT unscrew the oil dipstick while running. Avoid touching the generator in the rain or with wet hands.

• Electrical Safety: To prevent electric shock, ground the generator from the ground terminal. Never connect the generator to the wiring of your utility provider. Connections to a building’s electrical system must use an authorized transfer switch installed by an accredited electrician.

Familiarizing yourself with the location and function of the controls and features is important before operation.

Main Generator Components:

• Handle (1)

• Fuel Tank (2)

• Control Panel (3)

• Right Cover (4)

• Rubber Bottom (5)

• Air Filter (6)

• Fuel Cap (7)

• Inverter (8)

• Recoil Starter (9)

• Muffler (10)

• Power Cylinder Head (11)

• Gasoline Level Indicator (12)

Control Panel Features:

• Engine Switch (1)

• Digital Display (2)

• AC Reset Button (3)

• 230V Duplex (4)

• Grounding Terminal (5)

• Running Indicator (6)

• Overload Alert (7)

• Low Oil Alert (8)

Before starting the generator, you must add the correct type and amount of engine oil and fuel.

Adding Engine Oil:

The PROMATE PM4400IO is equipped with a low oil shut-off and will stop if the oil level is too low. We recommend using SAE 10W-30 APISJ oil for best performance.

1. Place the generator on a flat, level surface.

2. Wipe the area around the oil fill and remove the yellow oil fill cap/dipstick (A).

3. Clean the dipstick.

4. Using an oil funnel, slowly pour oil into the oil filler neck (B) up to the “H” mark on the dipstick. Be careful not to overfill.

5. Fully tighten the oil fill cap/dipstick (A).

6. The oil level should be checked prior to each use.

Break-In Period: The first 5 hours of runtime is the break-in period. During this time, keep the load at or below 50% of the running watt rating and vary it occasionally to allow stator windings to heat and cool.

Adding Fuel:

Fuel and its vapor are extremely flammable and explosive. Add fuel in a well-ventilated area away from sparks or open flames.

• Use clean, fresh, regular unleaded gasoline with a minimum 87 octane.

• DO NOT use E85 or E15 fuel.

• DO NOT mix oil with gasoline.

• Do not overfill the tank; allow space for fuel expansion.

1. Before starting, check for any loose or missing parts and any shipping damage.

2. Disconnect all electrical loads from the generator. Never start or stop the generator with electrical devices plugged in or turned on.

3. Turn the Engine Switch to the “ON” position.

4. Turn the Fuel Switch to the “ON” position.

5. Move the engine choke lever to the “START” position.

6. For Recoil start, firmly grasp the recoil handle and pull slowly until increased resistance is felt. Then, pull rapidly up and away to avoid kickback.

7. Allow the generator to operate at zero load for a few minutes after starting to let the engine and generator stabilize.

Tip: Keep the choke lever in the “START” position for only one pull. After the first pull, move the choke lever to “RUN” for subsequent pulls to avoid flooding the engine.

Connecting Electrical Loads:

Do not exceed the maximum wattage or amperage rating of the generator or any single receptacle.

1. Let the engine stabilize and warm up for a few minutes after starting.

2. Ensure the circuit breaker on the control panel is in the ON position.

3. Plug in and turn on the desired 230V AC, single phase, 60Hz electrical loads. It is best to plug in the item with the largest load first, allow the engine to stabilize, then add the next item.

Stopping the Generator:

1. Turn off and remove any electrical loads. Never start or stop the generator with equipment connected or turned on.

2. Let the generator run at no-load for two minutes to stabilize internal temperatures.

3. Move the ON/OFF switch to the “OFF” position.

4. Close the fuel valve.

The PROMATE PM4400IO is equipped with a low oil shutdown sensor. If the oil level drops below the threshold, an oil switch will shut down the engine. You must check the oil level with the dipstick.

If the oil level is between the LOW and HIGH marks on the dipstick:

1. DO NOT try to restart the engine.

2. Contact an Authorized Promate Service Center.

3. DO NOT operate the engine until the oil level is corrected.

If the oil level is below the LOW mark on the dipstick:

1. Add the correct type of oil to bring the level to the HIGH mark.

2. Restart the engine. If the engine stops again, a low oil condition may still exist. DO NOT try to restart it again.

3. Contact Promate Service.

4. DO NOT operate the engine until the oil is at the right level.

Regular maintenance will improve performance and extend the life of your generator. Follow the maintenance schedule intervals, whichever occurs first. Adverse conditions may require more frequent service.

Before performing any service, remove and ground the spark plug wire to prevent accidental starting.

Engine Oil Level Check:

1. Place the generator on a level surface and let the engine cool.

2. Clean around the oil dipstick, then remove it.

3. Wipe the dipstick clean, insert it fully, then remove it again to check the level.

4. If the level is low, add the recommended oil until the reading is between the L and H marks. Do not overfill.

5. Replace the oil dipstick and hand tighten.

Spark Plug Maintenance:

1. Remove the spark plug cap and clean any dirt from around the base of the spark plug.

2. Remove the spark plug using the provided wrench.

3. Inspect the spark plug for damage and clean it with a wire brush. Replace if the insulator is cracked or chipped.

4. Measure the plug gap. The correct gap is 0.028-0.031 in. (0.7-0.8 mm). Adjust if necessary.

5. Reinstall the spark plug, threading it by hand first to prevent cross-threading, then tighten with a wrench.

Air Filter Maintenance:

1. Unscrew the maintenance cover knob and remove the cover.

2. Remove the air cleaner cover and take out the sponge-like air filter element.

3. If the filter is dirty, clean it with warm, soapy water. Dry it with a clean cloth (do not twist). Apply a light coat of engine oil to the element.

4. If the filter element is damaged, replace it.

5. Reinstall the air filter element, air filter cover, and maintenance cover.

Proper storage is essential for maintaining your generator. Store it on a flat, level surface in a clean, dry environment.

Short Term Storage:

1. Fill the tank with fresh gasoline and add a correctly formulated fuel stabilizer.

2. Run the engine for 10-15 minutes to circulate the stabilizer.

3. Allow the generator to cool for at least 30 minutes, then drain the fuel tank.

4. Clean the generator and store it in a cool, dry, well-ventilated area away from direct sunlight. Shut off the fuel valve.

Long Term Storage (over one year):

For long term storage, gasoline must be drained from both the fuel tank and the carburetor.

1. Turn the fuel tank valve to the OFF position.

2. Place an appropriate gasoline container under the carburetor’s float bowl drain screw.

3. Loosen the float bowl drain screw and allow the fuel to drain completely.

4. Tighten the float bowl drain screw (not too tight).

5. Store the generator in a well-ventilated area, away from any open flames, heat sources, or spark-producing equipment.

If your engine is running but you are not getting any power, check the following possible causes and solutions:

If the engine runs well at no-load but struggles when a load is applied, check the following:

If the engine is having trouble starting or running smoothly, review this list of causes and solutions:

If the engine lacks power:

• Cause: Load is too high. Solution: Reduce load.

• Cause: Dirty air filter. Solution: Replace air filter.

• Cause: Clogged or dirty fuel filter. Solution: Clean or replace fuel filter.

• Cause: Clogged or dirty spark arrester screen. Solution: Clean or replace spark arrester screen.

• Cause: Engine needs to be serviced. Solution: Contact Promate Service.

• Cause: Bad fuel. Solution: Drain gas tank and carburetor; fill with fresh fuel.

If the engine “hunts” or falters:

• Cause: Carburetor is running too rich or too lean. Solution: Contact Promate Service.

• Cause: Clogged or dirty fuel filter. Solution: Replace the fuel filter.

• Cause: Choke is opened too soon. Solution: Set choke to halfway position until engine runs smoothly.

If the engine shuts down when running:

• Cause: Out of fuel. Solution: Fill fuel tank.

• Cause: Dirty air cleaner. Solution: Clean or replace air cleaner.

• Cause: Low oil level. Solution: Fill the crankcase to the proper level or place the generator on a level surface.

• Cause: Shut off due to a system fault & blinking yellow indicator light. Solution: Contact Promate Service.