John Deere z425 - Manual (Page 28)

Service Transmission - 27
SERVICE TRANSMISSION
5. If oil level is low, clean area around reservoir cap (C).
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.
Changing Transaxle Oil and Filter (Z425 and Z445)
NOTE: Z225 model: The transaxle is a sealed component. No
maintenance is required on this transaxle. If you suspect any
transmission problems, please contact your authorized dealer.
Z425 and Z445 models: Changing transaxle oil and filter is not
required as a regular service interval and should not be changed
unless servicing other components.
1. Park machine safely on a level surface. (See Parking Safely in the
SAFETY section.)
MX37940
2. Raise operator’s seat, and clean area around reservoir cap (A).
Remove cap.
MX37944
Picture Note: View from rear of machine.
3. Clean area around hydraulic oil filter (B).
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.
NOTE: Reservoir capacity is approximately 8.5 L (9 qt). Total system
capacity with filter is approximately 9.9 L (10.5 qt).
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.
Checking and Adjusting Neutral Creep
Check neutral creep with 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.
IMPORTANT: Avoid damage! Contamination can damage the
hydraulic system. Clean thoroughly around reservoir fill cap
before opening.
IMPORTANT: Avoid damage! Contamination can damage the
hydraulic system. Clean thoroughly around reservoir fill cap
before opening.
A
B