JOHN DEERE Z425 EZTRAK (01) PDF MANUAL

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF USER GUIDE

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF USER MANUAL

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF OWNER GUIDE

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF OWNER MANUAL

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF REFERENCE GUIDE

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF INSTRUCTION GUIDE

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF REFERENCE MANUAL

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF INSTRUCTION MANUAL

FREE ENGLISH JOHN DEERE Z425 EZTRAK (01) PDF OPERATING INSTRUCTIONS

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JOHN DEERE Z425 EZTRAK (01) PDF SUMMARY:

What should I do if I need to contact an Authorized Service Center for information on servicing?

Always provide the product model and identification numbers.

Where can I register my product and warranty online?

To register your product through the Internet, simply go to http://www.JohnDeereWarrantyRegistration.com.

What should I do before starting the machine?

  • Read, understand and follow all instructions on the machine and in manuals provided, and view safety video, before starting.
  • Be thoroughly familiar with the controls and the proper use of the machine before starting.

How should I practice operating the residential zero radius lawn mower?

Practice operating the residential zero radius lawn mower in a large open area with the blades off. Keep practicing until you feel confident in your maneuvering and driving skills.

Who is allowed to operate the machine?

Only allow responsible adults, who have practiced driving the residential zero radius lawn mower and are familiar with the instructions to operate the machine.

What should I do before operating the machine?

Clear the area of objects such as rocks, wire and toys which could be thrown by the blades.

What should I do before leaving a running machine unattended?

Always turn off blades, lock park brake, stop engine and remove key before dismounting.

What should I do before cleaning the machine, removing the grasscatcher, or unclogging the discharge chute?

Shut off engine and wait for all parts to come to a complete stop.

What should I wear when operating machine?

Always wear safety goggles or safety glasses with side shields when operating machine.

What should I inspect on the machine before I operate it?

  • Be sure hardware is tight.
  • Repair or replace damaged, badly worn, or missing parts.
  • Be sure guards and shields are in good condition and fastened in place.
  • Make any necessary adjustments before you operate.
  • Visually inspect to see that the blades, blade bolts and the mower assembly are not worn and damaged.

What should I make sure of before starting the engine?

  • Make sure spark plug, muffler, fuel cap and air cleaner are in place before starting the engine.
  • Be sure all drives are in neutral and parking brake is locked before starting engine.
  • Only start engine from the operator’s position.

What should I do if I hit an object or if abnormal vibration occurs?

Stop the machine and inspect it. Make repairs before you operate.

What should I do when machine is left unattended, stored, or parked?

Lower the mower deck unless a positive mechanical lock is used.

What should I do in the mowing area before mowing?

  • Clear mowing area of objects that might be thrown. Keep people and pets out of mowing area.
  • Low-hanging branches and similar obstacles can injure the operator or interfere with mowing operation. Before mowing, identify potential obstacles such as low-hanging branches, and trim or remove those obstacles.
  • Study mowing area. Set up a safe mowing pattern. Do not mow where traction or stability is doubtful.
  • Test drive area with mower lowered but not running. Slow down when you travel over rough ground.

How do I park safely?

  1. Stop machine on a level surface, not on a slope.
  2. Disengage mower blades.
  3. Move motion control levers out to the Start/Shutdown position.
  4. Lock the park brake.
  5. Stop the engine.
  6. Remove the key.
  7. Wait for engine and all moving parts to stop before you leave the operator’s seat.
  8. Disconnect the negative battery cable or remove the spark plug wire (for gasoline engines) before servicing the machine.

What should I do before backing up?

Before backing up, stop mower blades or attachments and look down and behind the machine carefully, especially for children.

What should I do before leaving the operator’s station for any reason including emptying the grasscatchers or unplugging the chute?

Park machine safely before leaving the operator’s station for any reason including emptying the grasscatchers or unplugging the chute.

What should I do before and while backing up?

Before and while backing up, stop mower blades and look down and behind the machine carefully, especially for children.

What should I do if a child enters the work area?

Turn the machine off if a child enters the work area.

How should I mow on slopes?

Mow across slopes, not up and down.

What should I do if I feel uncomfortable on a hillside, or if I feel the front of the machine start to creep down the slope?

Stop mowing immediately and proceed slowly and safely down the slope.

What should I do if the tires lose traction on a slope?

Disengage the blades and proceed slowly, straight down the slope.

What should I avoid on slopes?

Avoid starting, stopping or turning on a slope.

What should I do if attachment has been removed for servicing mower or machine?

Drive machine slowly and avoid quick stops.

What should I do before doing service work on the machine?

Understand service procedure before doing work.

What should I do before adjusting, cleaning or repairing the machine?

Never make any adjustments or repairs with the engine running. Wait for all movement to stop on machine before adjusting, cleaning or repairing.

What should I do with mower blades before servicing them?

Wrap the blade or wear gloves, and use extra care when servicing them.

What should I do before cleaning or servicing machine?

Lower any attachments to the ground before cleaning or servicing machine. Disengage all power and stop the engine. Lock park brake and remove the key. Let machine cool.

What should I do before making any repairs?

Disconnect battery or remove spark plug wire (for gasoline engines) before making any repairs. Disconnect negative terminal first and positive last. Install positive terminal first and negative last.

What should I do before servicing machine or attachment?

Before servicing machine or attachment, carefully release pressure from any components with stored energy, such as hydraulic components or springs.

What should I do if equipped with hydraulic lift?

Release hydraulic pressure by lowering attachment or cutting units to the ground or to a mechanical stop and move hydraulic control levers back and forth.

What should I do before disconnecting hydraulic or other lines?

Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure.

What should I do before and after operating machine, especially after mowing or mulching in dry conditions?

Remove grass and debris from engine compartment and muffler area.

What should I always shut off when storing or transporting machine, if the machine has a fuel shutoff?

Always shut off fuel.

What should I do if fuel is spilled on clothing?

Change clothing immediately.

What should I do if fuel is spilled near machine?

Do not attempt to start the engine but move the machine away from the area of spillage. Avoid creating any source of ignition until fuel vapors have dissipated.

What should I do when inflating tires?

When inflating tires, use a clip-on chuck and extension hose long enough to allow you to stand to one side and NOT in front of or over the tire assembly.

What should I check tires for?

Check tires for low pressure, cuts, bubbles, damaged rims or missing lug bolts and nuts.

What should I do anytime wheel hardware is loosened?

Wheel hardware must be tightened to specified torque using the proper procedure.

How do I assemble, charge, and connect the battery?

  1. Raise seat.
  2. Remove and discard the protective caps from the battery terminals.
  3. Charge the battery. Battery is fully charged at 12.6 volts.
  4. Connect positive (+) battery cable (A) to battery.
  5. Connect negative (-) battery cable (B).
  6. Apply general purpose grease or silicone spray to terminal to help prevent corrosion.
  7. Slide red cover over positive battery cable.
  8. Lower seat.

How do I install the Deck Height Pin?

  1. Be sure mower is fully raised to the transport lock position, as shown, and insert the pin (A) in the hole just below the mower deck lift lever (B).

How do I install the Seat?

  1. Remove and discard four bolts and wood block holding seat onto foot plate.
  2. Raise seat platform (A), and install seat (B) onto platform. Secure with washers and bolts ©.
  3. Route harness connector (D) up and onto seat switch, and secure harness plug (E) into hole in seat platform.
  4. Lower seat.

What should I check during machine assembly?

  • Check tire pressure. (See Checking Tire Pressure in the SERVICE MISCELLANEOUS section.)
  • Adjust mower deck level. (See Adjusting Mower Deck Level in the OPERATING section.)
  • Check engine oil level. (See Checking Engine Oil Level in the SERVICE ENGINE section.)
  • Perform safety system check to make sure the electronic safety interlock circuit is functioning properly. Perform all tests. (See Testing Safety System in the OPERATING section.)

What is the Daily Operating Checklist?

  • Test safety systems.
  • Check fuel level.
  • Check engine oil level.
  • Remove grass and debris from engine compartment and muffler area, before and after operating machine.
  • Check transaxle oil level – sight bottle.
  • Clean air intake screen.
  • Check area below machine for leaks.

How to Avoid Damage to Plastic and Painted Surfaces:

  • Do not wipe plastic parts unless rinsed first.
  • Insect repellent spray may damage plastic and painted surfaces. Do not spray insect repellent near machine.
  • Be careful not to spill fuel on machine. Fuel may damage surface. Wipe up spilled fuel immediately.

How to Mount and Dismount the Machine:

  • Do not step on the mower deck when mounting and dismounting the machine.
  • Mount the machine from the front using the foot plate (A).
  • Park machine safely before dismounting (see Parking Safely in the SAFETY section).
  • Keep the foot plate clean.

How to Adjust the Seat:

  1. Pull lever (A) upward.
  2. Slide seat forward or rearward to desired position.
  3. Release lever.

How to Adjust Motion Control Levers:

  1. Park machine safely. (See Parking Safely in the SAFETY section.)
  2. To adjust motion control lever height, remove two bolts and nuts and raise or lower each control lever to your comfort level.
    • For highest lever position, use holes (A).
    • For medium lever position, use holes (B).
    • For lowest lever position, use holes ©.
  3. You can also adjust motion control levers slightly forward or rearward (D) within slotted holes.

How to Adjust Cutting Height:

  1. Check tire pressure and adjust as needed.
  2. Raise mower deck.
  3. Insert the pin (A) in the proper hole for the desired height of cut.
  4. Lower mower deck.

How to Adjust Mower Level:

  1. Park machine safely. (See Parking Safely in the SAFETY section.)
  2. Inflate tires to the correct pressure.
  3. Set mower to preferred cutting height, and lower deck into the mowing position.
  4. Measure mower level (side-to-side).
    • Position mower blades as follows and measure from each outside blade tip (B) to the level surface.
    • Turn left blade © as shown. Hold drive belt and turn right blade (D) as shown. Take measurement for both blades.
    • The difference between blade measurements must not be more than 3 mm (1/8 in).
    • Adjust mower level, if necessary, by turning rear nuts (E) clockwise to raise the side of the mower deck, or counterclockwise to lower the mower deck.
  5. Measure mower level (front-to-rear).
    • Turn right blade (D) so blade tip points straight forward.
    • Measure from blade tip to the surface. Take measurement for both blades. The front blade tip must be 3 – 6 mm (1/8 – 1/4 in.) lower than rear blade tip.
    • 42 inch mower deck: Adjust mower level, if necessary, by loosening rear nut (F) on front lift rod. Turn front nut (G) clockwise to raise front of mower or counterclockwise to lower it. Tighten rear nut after adjustment is complete.
    • 48 and 54 inch mower decks: Adjust mower level, if necessary, by loosening rear nuts (H) on front lift rod. Turn front nuts (I) clockwise to raise front of mower or counterclockwise to lower it. Make sure front lift rod contacts mower deck bracket on both sides (J) to maximize stability of deck. Tighten rear nut after adjustment is complete.
    • Verify that deck will latch in transport position. If it does not latch, turn both rear adjusting nuts counter-clockwise equally to lower rear of deck until deck latch will engage. Check front lift rod adjustment, adjust if necessary.

How to Adjust Mower Wheels:

  1. Park machine safely on a level surface. (See Parking Safely in the SAFETY section).
  2. Inflate tires to correct pressure.
  3. Raise mower deck lift lever, and lock in transport position.
  4. Adjust mower wheels to correct height:
    • 42 Inch Mower: Remove shoulder bolt (E) and nut (F). Move wheel (G) to proper hole position. Secure with shoulder bolt and nut. Tighten nut to 34 N•m (25 lb-ft).
    • 48 and 54 Inch Mowers: Remove shoulder bolt (J) and nut (K). Move wheel (L) to proper hole position. Secure with shoulder bolt and nut. Tighten nut to 34 N•m (25 lb-ft).

How to Test Safety Systems:

The safety systems installed on your machine should be checked before each machine use.

How to Test Park Brake Switch:

  1. Park machine safely. (See Parking Safely in the SAFETY section.)

  2. Sit on seat.

  3. Unlock the park brake.

  4. Try to start engine.

    • Result: Engine must not crank. If engine cranks, there is a problem with your safety interlock circuit.

How to Test Park Brake:

  1. Park machine safely. (See Parking Safely in the SAFETY section.)

  2. Engage bypass valve lever.

  3. Lock the park brake.

  4. Try to push machine manually.

    • Result: Park brake must prevent machine from moving. If machine moves, parking brake needs to be adjusted.

How to Test Mower Engagement (PTO) Switch:

  1. Park machine safely. (See Parking Safely in the SAFETY section.)

  2. Sit on seat.

  3. Lock the park brake.

  4. Engage the mower.

  5. Try to start engine.

    • Result: Engine must not crank. If engine cranks, there is a problem with your safety interlock circuit.

How to Test Seat Switch:

  1. Park machine safely. (See Parking Safely in the SAFETY Section.)
  2. First test:
    • Start engine.
    • Move throttle lever up to maximum engine speed.
    • Unlock park brake.
    • Engage mower.
    • Raise up off seat. Do not get off machine.
      • Result: Engine and mower blades should stop. If engine and mower blades do not stop, there is a problem with your safety interlock circuit.
  3. Second test:
    • Lock park brake.
    • Disengage mower.
    • Start engine.
    • Unlock park brake.
    • Raise up off seat. Do not get off machine.
      • Result: Engine should stop. If engine does not stop, there is a problem with your safety interlock circuit.
  4. Third test:
    • Disengage mower.
    • Start engine.
    • Lock park brake.
    • Raise up off seat. Do not get off machine.
      • Result: Engine should continue to run. If engine stops, there is a problem with your safety interlock circuit.

How to Use the Park Brake:

  • Setting Park Brake:
    1. Press button, and raise park brake lever to lock park brake.
  • Releasing Park Brake:
    1. Press button, and lower park brake lever to unlock park brake.

What are the functions of the motion control levers?

  • Dual function neutral position.
  • Steering.
  • Acceleration.
  • Braking.

How do I stop the machine for an emergency?

To stop the machine for an emergency, move the motion control levers quickly back to the neutral position.

What should I do if the machine does not track in a straight line when going forward or reverse?

If the machine does not track in a straight line when going forward or reverse, the motion control lever tracking may need adjusting.

How to Operate the Key Switch:

  • STOP (off) position – With key in the STOP position, all switched power is off, and engine should not run.
  • Run (on) position – Turn key from STOP to this position, and all switched power circuits will be on.
  • Start position – Turn key to start position to crank the engine. Release key after engine has started and it will automatically return to the on position. The engine will continue to run.

How to Use the Mower Engagement Switch:

  • To Engage Mower – Pull mower engagement knob up.
  • To Disengage Mower – Push mower engagement knob down.

How to Use the Hour Meter:

  • The hour meter shows the number of hours the engine has run. The hour meter does not accumulate hours with the engine off when the key is in the run position.
  • Use the hour meter to determine when your machine has reached the recommended service intervals.
  • Turn the key to STOP position when not using the machine.
  • Hour meter cannot be reset.

How to Use the Motion Control Levers:

Before using the machine, become familiar with the motion control levers.

What is the Start/shutdown Position?

  • Motion control levers must be in the start/shutdown position (A) and the park brake locked (B) to start the engine.
  • Forward and reverse movement of the motion control levers is prevented when levers are moved to the start/shutdown position.
  • Operator can exit mower with the engine running when the mower engagement switch is disengaged, the motion control levers are in the start/shutdown position and the park brake is locked.
  • Motion control levers must be in the start/shutdown position to safely enter and exit the operator seat.

What is the Neutral Position?

Machine speed, motion, and direction can be controlled when the engine is running, motion control levers are in the neutral position ©, and the park brake is unlocked (D).

How to Move the Machine Forward:

  1. Gradually move both motion control levers evenly forward (A) from neutral. To speed up, move the levers farther forward. To slow down smoothly, slowly move the levers toward neutral.

How to Move the Machine in Reverse:

  1. Look down and behind, then gradually move both motion control levers evenly rearward (B) from neutral. To speed up, move the levers farther rearward. To slow down smoothly, slowly move the levers toward neutral.

How to Turn Left:

  • To turn slightly to the left, push right control lever © further forward than the left control lever (D).
  • To turn sharply to the left, push right control lever © forward and pull left control lever (D) rearward at the same time.

How to Turn Right:

  • To turn slightly to the right, push left control lever (D) further forward than the right control lever ©.
  • To turn sharply to the right, push left control lever (D) forward and pull right control lever © rearward at the same time.

How to Start the Engine:

  1. Sit on the operator seat.
  2. Lock park brake.
  3. Push the mower engagement knob down to disengage the mower.
  4. Set both motion control levers to the start/shutdown position.
  5. Move throttle lever to set engine speed:
    • Cold start: Set throttle lever to the start position.
    • Warm start: Set throttle lever to the run position.
  6. Position choke knob:
    • Cold start: Pull knob up and hold in the choke position.
    • Warm start: If necessary, pull knob up and hold in choke position.
  7. Turn key switch to the start position.
  8. After engine starts, release key switch to the run position, push choke knob down to off position, and move throttle to run.
  9. Allow the engine to warm up for 20 seconds.
  10. Release park brake.
  11. Set both motion control levers to the neutral position.

How to Engage the Mower:

  1. Adjust mower to desired cutting height.
  2. Start engine.
  3. Release park brake.
  4. Move both motion control levers to the neutral position.
  5. Set throttle lever to the RUN position.
  6. Pull mower engagement switch up to engage mower.
  7. Push motion control levers forward slowly. Mow at a safe travel speed.

How to Stop the Engine:

  1. Stop machine on a level surface, not on a slope.
  2. Push the mower engagement switch down to disengage mower.
  3. Move the motion control levers to the start/shutdown position.
  4. Lock park brake.
  5. Move throttle lever to the shutdown position.
  6. Allow the engine to cool down for 20 seconds.
  7. Turn ignition key to STOP (off) position.
  8. Remove key.

How to Move the Z225 Model Machine by Hand:

  1. Pull out both bypass valve levers (A) at rear of machine.
  2. Release park brake.
  3. Push machine to desired location.
  4. Push in both bypass valve levers.

How to Move the Z425 and Z445 Models Machine by Hand:

  1. Lock park brake.
  2. Raise operator’s seat.
  3. Turn bypass valves (A) on both sides of pump one full turn counterclockwise (open position).
  4. Unlock park brake.
  5. Push machine to desired location. Due to hydraulic system drag, machine will move slowly.
  6. Turn both bypass valves one full turn clockwise (closed position) until tight.
  7. Lock park brake.

How to Check for Plugging While Driving

  • Check the flow indicator on MCS chute (if equipped) periodically for any indication of loss of air flow.
  • If grass builds up in front of mower discharge chute, check for plugged chute or problems with blower assembly (if equipped).
  • If there is a trail of clippings behind mower or clippings blow to the side, check for plugged chute, full collector bags, or problems with blower assembly.

How to Remove Debris From Inspection Points:

  1. Park machine safely. Wait for all moving parts to stop before getting off to inspect machine.
  2. Open hopper cover. Check chute outlet.
  3. Remove chute from mower deck or blower assembly. Check chute inlet.
  4. Check under mower deck for debris.

How to Transport Machine on Trailer:

  1. Park trailer on level surface.
  2. Raise mower deck before driving machine onto trailer.
  3. Back machine onto heavy-duty trailer with full-width ramp.
  4. Lower mower deck completely.
  5. Lock park brake.
  6. Turn off machine and remove key.
  7. Fasten machine at the axle or frame to trailer with heavy-duty straps, chains, or cables. Both front and rear straps must be directed down and outward from machine.

What are some Mowing Tips?

  • Mow grass with throttle lever in the full fast / mow position.
  • Mow grass when it is dry.
  • Keep mower deck and discharge chute clean.
  • Mow with sharp blades.
  • Properly level mower deck for a smooth cut.
  • Mow grass frequently.
  • Use a travel speed that fits the conditions:
    • Mow tall or wet grass twice. Cut grass at half desired height – then cut at desired height.
    • Travel slow when mowing tall, thick or wet grass.
    • Avoid damaging grass by slipping or skidding machine drive wheels. Practice smooth control lever movements.
    • When performing sharp turns, do not allow inside machine drive wheel to stop and twist on grass.

What are the Service Intervals for the machine?

  • Break-In after 8 Hours
    • Change engine oil.
    • Change engine filter (Z425 and Z445).
  • Every 50 Hours or Annually
    • Lubricate mower deck spindles (Z425 and Z445).
  • Every 100 Hours or Annually
    • Change engine oil.
    • Change engine filter (Z425 and Z445).
    • Replace spark plugs.
    • Replace air filter elements, both foam and paper.
    • Replace fuel filter.
    • Check mower belt.
    • Sharpen / Replace blades.
    • Clean underside of deck.
    • Check tire pressure.
    • Clean engine cooling fins.
  • Every 200 Hours
    • Check / adjust engine valve clearance. See your John Deere dealer for this service.

How do I lubricate the mower deck spindles?

  1. Remove mower deck foot plate.
    • 42 in. Mower Deck: Lubricate two mower deck spindle grease fittings (A) with two pumps of grease at specified interval.
    • 48 and 54 in. Mower Decks: Lubricate three mower deck spindle grease fittings (B) with two pumps of grease at specified interval.

How do I lubricate front caster spindles?

  • The two front caster wheel supports (A) utilize sealed bearings, which do not require lubrication. There are no grease fittings in the wheel supports.
  • The caster wheel yoke spindle (B) should be lightly greased prior to assembly if the wheel unit is serviced, to prevent the spindle from seizing in the bearings.

How do I check the engine oil level?

  1. Park machine safely. (See Parking Safely in the SAFETY section.)
  2. Clean area around dipstick to prevent debris from falling into crankcase.
  3. Remove dipstick (A). Wipe with clean cloth.
  4. Install dipstick:
    • Briggs and Stratton Engines: Install and tighten dipstick.
    • Kawasaki Engines: Install dipstick in tube but do not tighten. Allow dipstick threads to rest on top of tube and rotate cap counterclockwise until it “clicks” or drops into place.
  5. Remove dipstick.
  6. Check oil level on dipstick. Oil must be between ADD and FULL marks.
  7. If oil level is low, add oil to bring oil level no higher than FULL mark on dipstick. Do not overfill.
  8. Install and tighten dipstick.

How do I inspect the foam precleaner?

Inspect the foam precleaner without removing it. If the foam precleaner is dirty: a. Remove it from the filter carefully. b. Wash precleaner in a solution of warm water and liquid detergent. c. Rinse precleaner thoroughly. Squeeze out excess water in a dry cloth until precleaner is completely dry.

What should I do after inspecting the foam precleaner?

  1. Clean air cleaner housing carefully. Prevent any dirt from falling into carburetor.
  2. Install foam precleaner mesh side up.
  3. Install cartridge. Make sure cartridge and seal are properly seated and sealing the carburetor air intake area.
  4. Install air cleaner cover and tighten knobs. Do not overtighten.

How do I check and clean the air cleaner elements on a twin cylinder Kawasaki engine?

  1. Park machine safely (See Parking Safely in the SAFETY section).
  2. Let engine cool.
  3. Clean dirt and debris from the air cleaner cover.
  4. Loosen two knobs and remove cover.
  5. Inspect the foam precleaner without removing it.
  6. If the foam precleaner is dirty: Remove the filter carefully; wash precleaner in a solution of warm water and liquid detergent; rinse precleaner thoroughly; squeeze out excess water in a dry cloth until precleaner is completely dry.
  7. Remove foam precleaner, wing nuts, and paper element. Inspect paper element.
  8. If the paper filter element is damaged or dirty, replace filter.
  9. Clean air cleaner base very carefully, preventing any dirt from falling into carburetor.
  10. Install foam precleaner onto paper filter element. Install paper element onto carburetor base, and secure with two wing nuts. Install air cleaner cover and tighten wing nuts.

What should I NOT do when cleaning the paper element of the air filter?

  • Do not wash paper element.
  • Do not attempt to clean paper element by tapping against another object.
  • Do not use pressurized air to clean element.
  • Replace element only if it is very dirty, damaged or the seal is cracked.

How do I check the spark plug?

  1. Park machine safely (See Parking Safely in the SAFETY section).
  2. Disconnect spark plug wire. For the twin cylinder engines, there is one on each side of engine.
  3. Remove each spark plug.
  4. Clean spark plug carefully with a wire brush.
  5. Inspect spark plug for cracked porcelain, pitted or damaged electrodes, or other wear or damage.
  6. Replace spark plugs as necessary.
  7. Check plug gap with a wire feeler gauge. To change gap, move the outer electrode. Gap must be 0.75 mm (0.030 in.).
  8. Install spark plugs and tighten to 20 N•m (180 lb-in.).
  9. Connect spark plug wire(s).

How do I replace the fuel filter?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Let engine cool.
  3. Raise operator’s seat.
  4. Put a drain pan under fuel filter.
  5. Slide hose clamps on both sides of fuel filter away from fuel filter ends using pliers.
  6. Disconnect hoses from filter.
  7. Connect hoses to new filter making sure the filter arrow is pointing in the direction of the fuel flow.
  8. Install clamps and check for leaks.

How do I check the transaxle oil level on Z425 and Z445 models?

  1. Park machine safely on a level surface. (See Parking Safely in the SAFETY section.)
  2. Allow machine to cool.
  3. Raise operator’s seat.
  4. Locate transaxle oil reservoir at rear of machine. Reservoir is marked FULL.
  5. If oil level is low, clean area around reservoir cap.
  6. Remove cap.
  7. Add John Deere Low Viscosity HY-GARD™ (J20D) until oil level is at FULL mark on reservoir.
  8. Install cap.
  9. Start engine.
  10. Operate machine forward and in reverse several times.
  11. Park machine safely on a level surface. (See Parking Safely in the SAFETY section.)
  12. Wait at least 3 minutes for hydraulic oil to cool.
  13. Check oil level again. Add oil if necessary.

How do I change the transaxle oil and filter on Z425 and Z445 models?

  1. Park machine safely on a level surface. (See Parking Safely in the SAFETY section.)
  2. Raise operator’s seat, and clean area around reservoir cap. Remove cap.
  3. Clean area around hydraulic oil filter.
  4. Place drain pan with at least a 9.9 L (10.5 qt) capacity under hydraulic oil filter, turn filter counterclockwise to remove and allow oil to drain completely.
  5. Apply a film of clean oil on gasket of new filter.
  6. Install filter. Turn filter clockwise until gasket makes contact with the mounting surface. Tighten 1/2 to 3/4 turn after gasket contact.
  7. Fill oil reservoir with approximately 8.5 L (9 qt) of oil.
  8. Install reservoir cap.
  9. Start engine.
  10. Move throttle lever to the 3/4 fast idle position.
  11. Unlock park brake.
  12. Run engine in full forward position for five minutes and then cycle motion control levers forward and rearward several times. Check for leaks around filter.
  13. Stop the engine. Check oil level in reservoir. Add oil as necessary.

How do I check and adjust neutral creep?

Check neutral creep with engine running, motion control levers in the start/shutdown position, park brake off, and machine on level ground. If the machine creeps forward or reverse while motion control levers are in the start/shutdown position, adjust the motion control lever linkages:

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Raise seat.
  3. Remove locking pin on black yoke end, then remove yoke end from arm. Turn black yoke end on rod in (clockwise) to decrease forward creep and out (counterclockwise) to decrease reverse creep. Repeat procedure, as necessary, on opposite side. Install yoke ends back onto arms and secure with locking pin.

How do I adjust the tracking?

If the machine does not track in a straight line while going in full forward position, adjust the tracking:

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Adjust tracking:

    NOTE: Tracking bolts limit top forward speed. If both levers hit against the tracking bolts, turn both bolts counterclockwise equal amounts until only one bolt contacts the lever. This will achieve maximum forward speed.

    • If machine tracks to the left, turn tracking bolt clockwise.
    • If machine tracks to the right, turn tracking bolt clockwise.

How do I clean the transaxle cooling fans on the Z225?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Clean transaxle fan fins and around exterior of each fan with a rag, brush, or compressed air.

How do I check the transaxle drive belt on the Z225?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Inspect drive belt for excessive wear, damage or stretching while in position on the engine sheave, transmission sheaves, and drive belt tensioner sheave.

How do I replace the transaxle drive belt on the Z225?

  1. Disconnect electric clutch wiring connector from main wiring harness connector.

  2. Remove clutch wiring harness from retaining clip, and lower harness and connector through hole.

  3. Remove mower deck drive belt. (See Replacing Mower Deck Drive Belt in the SERVICE MOWER section.)

  4. Remove drive belt from engine sheave, transmission sheaves and idler sheave.

    • To make removal and installation of the belt easier, carefully rotate the spring loaded idler counterclockwise, and remove belt.

  5. Install belt onto engine sheave, transmission sheaves and idler sheave as shown by arrows.

  6. Install mower deck drive belt.

  7. Install electric clutch wiring harness back through frame hole and connect to main wiring harness. Secure harness onto frame with retaining clip.

How do I check the pump drive belt on Z425 and Z445 models?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Inspect belt for excessive wear, damage or stretching while in position on the transmission sheave and drive belt tensioner sheave.

How do I replace the pump drive belt on Z425 and Z445 models?

  1. Disconnect electric clutch wiring connector from main wiring harness connector.

  2. Remove clutch wiring harness from retaining clip, and lower harness end through hole.

  3. Remove mower deck drive belt. (See Replacing Mower Deck Drive Belt in the SERVICE MOWER section.)

  4. Remove drive belt from drive sheaves and idler sheave.

    • To make removal and installation of the belt easier, carefully rotate the spring loaded idler clockwise and remove belt.

  5. Install drive belt onto drive sheaves and idler sheave as shown.

  6. Install mower deck drive belt.

  7. Install electric clutch wiring harness back through frame hole and connect to main wiring harness. Secure harness onto frame with retaining clip.

How do I remove the mower deck foot plate?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Remove bolts and nuts.
  3. Rotate foot plate up using finger pull.
  4. Remove foot plate.

How do I install the mower deck foot plate?

  1. Place tabs of foot plate into slots in frame.
  2. Lower foot plate.
  3. Install bolts and nuts.

How do I remove the 42-inch mower deck?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Raise mower deck to the transport lock position.

  4. Remove pin, lower mower deck, and install pin just above lever to lock mower in lowered position.

  5. Remove foot plate.

  6. Disconnect mower drive belt:

    • Install 3/8-inch ratchet onto square hole in tension arm and rotate counterclockwise to release tension on belt, while removing mower belt from left spindle sheave.
    • Remove belt from engine sheave.

  7. Remove locking clip and, remove stud end from front draft bracket.

  8. Remove spring clip and pin from each side of rear mower bracket.

  9. Raise draft arms to transport lock position:

    • Pull and raise mower lift lever fully upward.
    • Install pin just below lift lever to lock into raised position.

  10. Rotate front caster wheels to maximize clearance.

  11. Slide mower out from under the machine.

How do I remove the 48 and 54-inch mower deck?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Raise mower deck to the transport lock position.

  4. Remove pin, lower mower deck, and install pin just above lever to lock mower in lowered position.

  5. Remove foot plate.

  6. Disconnect mower drive belt:

    • Install 3/8-inch ratchet onto square hole in tension arm and rotate clockwise to release tension on belt, while removing mower belt from center spindle sheave.
    • Remove belt from engine sheave.

  7. Remove locking clips, and remove front draft rod from draft bracket and mower deck bracket.

  8. Remove spring clip and pin from each side of rear mower bracket.

  9. Raise draft arms to transport position:

    • Pull and raise mower lift lever fully upward.
    • Install pin just below lift lever to lock into raised position.

  10. Rotate front caster wheels to maximize clearance.

  11. Slide mower out from under the machine.

How do I install the 42-inch mower deck?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Raise mower lift lever fully upward into transport lock position.

  4. Slide mower deck under machine.

  5. Lower mower lift lever, and install pin and spring clip onto each side of rear mower bracket.

  6. Install stud onto front draft bracket. Secure with locking clip.

  7. Connect mower drive belt:

    • Install belt onto engine sheave.
    • Install 3/8-inch ratchet onto square hole in tension arm and rotate counterclockwise to release tension on belt, while installing mower belt onto left spindle sheave. Make sure belt is properly seated on all sheaves.

  8. Install foot plate.

How do I install the 48 and 54-inch mower deck?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Raise mower lift lever fully upward into transport lock position.

  4. Slide mower deck under machine.

  5. Lower mower lift lever, and install pin and spring clip onto each side of rear mower bracket.

  6. Install front draft rod onto mower deck bracket and onto draft bracket. Secure stud ends with locking clip.

  7. Connect mower drive belt:

    • Install belt onto engine sheave.
    • Install 3/8-inch ratchet onto square hole in tension arm and rotate clockwise to release tension on belt, while installing mower belt onto center spindle sheave. Make sure belt is properly seated on all sheaves.

  8. Install foot plate.

How do I replace the 42-inch mower deck drive belt?

  1. Park machine safely. (See Parking Safely in SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Remove mower deck.

  4. Remove drive belt:

    • Remove two bolts and left belt cover.
    • Loosen bolt on belt guide.
    • Loosen hardware on two sheaves, and remove belt from all sheaves.

  5. Inspect belt for wear or damage; replace as necessary.

  6. Clean top surface of mower deck and sheaves.

  7. Install belt on mower deck as shown.

  8. Install and tighten bolt on belt guide.

  9. Make sure belt guide is indexed properly into hole on tension arm.

  10. Tighten sheave hardware to 47 N•m (35 lb-ft).

  11. Make sure belt is properly seated on all sheaves, and install belt shield.

  12. Install mower deck.

How do I replace the 48 and 54-inch mower drive belt?

  1. Park machine safely. (See Parking Safely in SAFETY section).

  2. Allow engine and muffler to cool completely.

  3. Remove mower deck.

  4. Remove drive belt:

    • Remove six bolts and left and right belt covers.
    • Loosen bolt on belt guide.
    • Loosen nut and bolt on sheaves, and remove belt from all sheaves.

  5. Inspect belt for wear or damage; replace as necessary.

  6. Clean top surface of mower deck and sheaves.

  7. Install belt on mower deck as shown.

  8. Install and tighten bolt on belt guide.

  9. Make sure belt guide is indexed properly into hole on tension arm.

  10. Tighten sheave nut and bolt to 47 N•m (35 lb-ft).

  11. Make sure belt is properly seated on all sheaves, and install belt shields.

  12. Install mower deck.

How do I check for bent mower blades?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Raise mower deck to highest position to access blades.
  3. Measure distance between blade tip and flat ground surface.
  4. Rotate blade 180° and measure distance between other blade tip and flat ground surface.
  5. Install new blade if the difference between the two measurements is more than 3 mm (1/8 in.).
  6. Repeat for all blades.

How do I remove mower blades?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Raise mower deck to gain access to mower blades. If necessary, remove mower deck.

  3. Block mower blade with a piece of wood to prevent it from spinning.

  4. Remove mower blade(s):

    • 42 inch mower deck: Loosen and remove nut, washer, and blade.
    • 48 and 54 inch decks: Loosen and remove bolt, washer, and blade.

  5. Inspect blades; sharpen, balance or replace blades as necessary.

How do I install mower blades?

42 Inch Mower deck:

  1. Align the splined center hole in the blade with the splined spindle shaft and put the blade onto the mower spindle shaft with cutting edge toward ground.
  2. Install washer, with cupped side towards blade, and install nut to secure blade onto splined spindle shaft.
  3. Block mower blade with a piece of wood to prevent spinning and tighten nut to 68 N•m (50 lb-ft).

48 Inch Mower deck:

  1. Make sure deflector cup is seated properly between mower spindle and blade.
  2. Position mower blade with cutting edge toward ground onto mower spindle.
  3. Install washer, with cupped side towards blade, and install bolt to secure blade onto spindle shaft.
  4. Block mower blade with a piece of wood to prevent spinning and tighten bolt to 68 N•m (50 lb-ft).

How do I remove the battery?

  1. Park machine safely. (See Parking Safely in the SAFETY section).

  2. Raise operator’s seat.

  3. Disconnect negative (-) battery cable.

  4. Push red cover away from positive (+) battery terminal and remove cable from battery.

  5. Remove hold down strap.

  6. Lower seat slightly to gain clearance for battery removal. Seat can be removed to have better access to the battery and make it easier to remove.

    • To remove seat: Remove wiring harness connector and harness plug from seat. Remove retaining clip and remove rod holding seat to machine. Remove seat.

  7. Remove battery.

How do I install the battery?

  1. Place battery into battery tray so battery posts are facing toward rear of machine.
  2. Install hold down strap.
  3. Connect positive (+) cable to battery first, then negative (-) cable.
  4. Apply general purpose grease or silicone spray to terminal to help prevent corrosion.
  5. Slide red cover over positive battery terminal.
  6. Install seat, if removed.
  7. Install wiring harness connector and harness plug on seat, if removed.
  8. Lower seat.

How do I clean the battery and terminals?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Disconnect and remove battery.
  3. Wash battery with solution of four tablespoons of baking soda to one gallon of water. Be careful not to get the soda solution into the cells.
  4. Rinse the battery with plain water and dry.
  5. Clean terminals and battery cable ends with wire brush until bright.
  6. Install battery.
  7. Attach cables to battery terminals using washers and nuts.
  8. Apply spray lubricant to terminal to prevent corrosion.

How do I use a booster battery?

  1. Connect positive (+) booster cable to booster battery positive (+) post.
  2. Connect the other end of positive (+) booster cable to the disabled vehicle battery positive (+) post.
  3. Connect negative (–) booster cable to booster battery negative (–) post.
  4. Connect the other end of negative (–) booster cable to a metal part of the disabled machine engine block away from battery.
  5. Start the engine of the disabled machine and run machine for several minutes.
  6. Carefully disconnect the booster cables in the exact reverse order: negative cable first and then the positive cable.

How do I replace the headlight bulb (if equipped)?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Turn bulb socket 1/4 turn counterclockwise to remove.
  3. Replace defective bulb with a new bulb.
  4. Insert bulb socket into housing, push in and turn 1/4 turn clockwise to install.

How do I replace a fuse?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Raise operator’s seat.
  3. Pull blown fuse out of socket.
  4. Check metal strip in fuse window and discard fuse(s) if strip is broken.
  5. Push new, correct amp, fuse into correct socket.
  6. Lower operator’s seat.

How do I fill the fuel tank?

  1. Park machine safely. (See Parking Safely in the SAFETY section).
  2. Allow engine to cool.
  3. Remove any trash from area around fuel tank cap.
  4. Remove fuel tank cap slowly to allow any pressure built up in tank to escape.
  5. Fill fuel tank only to bottom of filler neck.
  6. Install fuel tank cap.

How do I check tire pressure?

  1. Check tires for damage.
  2. Check tire pressure with an accurate gauge.
  3. Add or remove air, if necessary.

How do I remove the wheel assembly?

  1. Park machine safely. (See Parking Safely in the Safety section).
  2. Raise machine with a safe lifting device and lower machine onto jack stands or other stable supports. Block wheels remaining on the ground to prevent machine movement.
  3. Remove the wheel nuts.
  4. Remove the wheel assembly.
  5. Take wheel assembly to an authorized service dealer for repairs.

How do I install the wheel assembly?

  1. Install wheel assembly with valve stem to the outside.
  2. Tighten wheel nuts evenly in alternating sequence until snug.
  3. Lower machine completely to the ground.
  4. Tighten wheel nuts to 102 N•m (75 lb-ft).

How do I clean metal surfaces?

Follow automotive practices to care for your vehicle painted metal surfaces. Use a high-quality automotive wax regularly to maintain the factory look of your vehicle’s painted surfaces.

How do I repair minor scratches (surface scratch) on metal surfaces?

  1. Clean area to be repaired thoroughly.
  2. Use automotive polishing compound to remove surface scratches.
  3. Apply wax to entire surface.

How do I repair deep scratches (bare metal or primer showing) on metal surfaces?

  1. Clean area to be repaired with rubbing alcohol or mineral spirits.
  2. Use paint stick with factory-matched colors available from your authorized dealer to fill scratches. Follow directions included on paint stick for use and for drying.
  3. Smooth out surface using an automotive polishing compound. Do not use power buffer.
  4. Apply wax to surface.

What should I check if the engine has poor performance?

Dirt in fuel system or fuel is old. Replace fuel with fresh stabilized fuel. Obtain fuel from another supplier before suspecting machine problems. Suppliers blend fuels differently and changing suppliers will generally solve any performance problems.

What could cause the engine to not start/no crank?

  • Park brake not locked.
  • Motion control levers not in Start/ Shutdown position.
  • Mower is engaged.
  • Defective brake, mower engagement, or key switch.
  • Electrical problem – See Electrical Troubleshooting Section.

What could cause the engine to crank, but not start?

  • Spark plug wire is loose or disconnected.
  • Improper fuel.
  • Plugged fuel filter.
  • Electrical problem – See Electrical Troubleshooting Section.

What could cause the engine to be hard to start?

  • Carburetor is not adjusted properly or dirty.
  • Choke not fully closing.
  • Plugged fuel filter.
  • Faulty spark plug.
  • Stale or improper fuel.
  • Loose or corroded electrical connections.
  • Engine oil viscosity.

What could cause the engine to run unevenly?

  • Cooling fins plugged.
  • Loose electrical connections.
  • Choke or throttle cable sticking.
  • Choke not fully open.
  • Fuel line or fuel filter plugged.
  • Stale or dirty fuel.
  • Improper fuel.
  • Air cleaner element plugged.

What could cause the engine to miss under load?

  • Faulty spark plug.
  • Stale or dirty fuel.
  • Plugged fuel filter.

What could cause the engine to vapor lock?

  • Fuel tank vent plugged.
  • Dirt in fuel filter.
  • Cooling fins plugged.
  • Loose hose connection at fuel filter or fuel pump.

What could cause the engine to overheat?

  • Engine air intake screen plugged.
  • Cooling fins plugged.
  • Engine oil low or too high.
  • Engine operated too long at a slow idle speed.

What could cause the engine to not idle?

  • Spark plug not gapped correctly.
  • Faulty spark plug.
  • Operator raising off the seat.

What could cause the engine to knock?

  • Stale or low octane fuel.
  • Engine overloaded.
  • Low engine speed.
  • Oil level low.

What could cause the engine to stop or miss when operating on hillsides?

  • Fuel tank less than half full of fuel.
  • Operator raising off of the seat.

What could cause the engine to backfire?

  • Faulty spark plug.
  • Operator raising off of the seat.

What could cause the engine to lose power?

  • Engine overheating.
  • Too much oil in engine.
  • Dirty air cleaner.
  • Faulty spark plug.
  • Travel speed is too fast for conditions.
  • Improper fuel.

What could cause excessive fuel consumption?

Choke is not fully open.

What could cause black exhaust smoke?

Air filter is dirty or oil soaked.

What could cause the starter to not work or will not turn engine?

  • Park brake not locked.
  • Mower is engaged.
  • Battery terminals are corroded.
  • Battery not charged.
  • Motion control levers not in Start/ Shutdown position.
  • Blown fuse.
  • Defective key switch.

What could cause the battery to not charge?

  • Dead cell in the battery.
  • Blown charging fuse.
  • Battery cables and terminals are dirty.
  • Low engine speed or excessive idling.

What could cause the lights to not work?

  • Light plug disconnected.
  • Loose or burned out bulb.
  • Blown headlight fuse.

What could cause the machine to vibrate too much or rattle excessively?

  • Attachment drive belts worn or damaged.
  • Mower blades not balanced.
  • Traction drive belt damaged or worn.
  • Dirt on drive sheaves.

What could cause the machine to not move with the engine running?

  • Transmission hydraulic oil level low.
  • Transmission belt broke.
  • Bypass valve levers are engaged (Z225).
  • Bypass valves are in open position (Z425 and Z445).

What could cause the machine to move with engine running and hydrostatic control in neutral?

  • Linkage out of adjustment.
  • Transmission neutral out of adjustment.

What could cause the mower lift to not latch in transport?

Deck is adjusted too high.

What could cause the discharge chute to be plugged?

  • Travel speed too fast.
  • Grass too long.
  • Grass too wet.
  • Engine rpm not at mow position.
  • Restricted air flow.
  • Belt installed incorrectly.

What could cause patches of grass to be uncut?

  • Travel speed too fast.
  • Engine rpm not at mow position.
  • Mower deck needs cleaning.

What could cause the belt to slip?

  • Debris in sheaves.
  • Worn belt.
  • Belt tension is incorrect.

What could cause too much vibration in the mower?

  • Debris on mower deck or in sheaves.
  • Damaged drive belt.
  • Damaged sheaves or sheaves out of alignment.
  • Blades out of balance.

What could cause the front tires to vibrate?

Set front tire pressure to 10 psi. If vibration continues, reduce tire pressure by 1 psi until vibration stops. Do not reduce tire pressure below 6 psi.

What could cause the blades to scalp grass?

  • Cutting too low.
  • Mower wheels not adjusted correctly.
  • Turning speed too fast.
  • Ridges in terrain.
  • Rough or uneven terrain.
  • Low tire pressure.

What could cause the mower to load down the tractor?

  • Engine rpm too low.
  • Travel speed too fast.
  • Debris wrapped around mower spindles.

What could cause an uneven cut?

  • Mower deck not leveled properly.
  • Travel speed too fast.
  • Blades dull.
  • Mower wheels not adjusted correctly.
  • Tire pressure unequal.

CLICK HERE TO DOWNLOAD JOHN DEERE Z425 EZTRAK (01) PDF MANUAL

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