MAINTENANCE
7-26
Change Gear Oil --- every 2000 hours
1. Park the machine on a level surface.
2. Rotate the travel motor until the imaginary line through
plug (1) and plug (3) is vertical.
3. Lower the bucket to the ground.
4. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the
engine is not properly shut down.
5. Run the engine at slow idle speed without load for five
minutes.
6. Stop the engine. Remove the key from the key switch.
7. Pull the pilot control shut-off lever to the LOCK position.
WARNING: Keep body and face away from the air
release plug. Gear oil is hot just after operation. Wait
for gear oil to cool and then gradually loosen the air
release plug to release pressure.
8. After gear oil has cooled, slowly loosen air release plug (1)
to release pressure, and temporarily retighten plug (1).
9. Remove drain plug (3) and plug (1), in that order, to drain
oil.
10. Clean drain plug (3). Wrap the threads of the drain plug
with sealing-type tape. Install the plug.
Tighten the plug.
Tightening Torque: 50 N·m (5.1 kgf·m)
11. Remove oil level check plug (2).
12. Add oil until oil flows out of the oil level check plug hole.
(See gear oil chart)
13. Clean plugs (1) and (2). Wrap the threads of oil level check
plug (2) and air release plug (1) with sealing-type tape.
Reinstall the plugs.
Tighten the plug.
Tightening Torque: 50 N•m (5.1 kgf•m)
14. Repeat steps 8. to 13. for the other travel reduction gear.
M157-07-170
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