Travel Reduction Gear - Hitachi ZAXIS 130-6N Operator's Manual

Travel Reduction Gear

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CAUTION: Keep body and face away from air release
plug (1). Gear oil may be hot just after operation.
Wait for gear oil to cool and then gradually loosen air
release plug (1) to release pressure.
Check Oil Level --- every 500 hours
1. Park the machine on a firm, level surface.
2. Rotate the travel motor until the imaginary line through
plug (1) and plug (3) are 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 5
minutes.
6. Stop the engine. Remove the key from the key switch.
7. Pull the pilot control shut-off lever to the LOCK position.
8. After gear oil has cooled, slowly loosen air release plug
(1) to release pressure.
9. Remove air release plug (1) and oil level check plug (2).
Oil must be up to the bottom of hole.
10. If necessary, add oil until oil flows out of oil level check
plug (2) hole. (See gear oil chart)
11. Wrap the plug threads with sealing-type tape. Install
plugs (1) and (2).
Tighten plugs (1) and (2) to 50 N·m (5 kgf·m).
12. Check the gear oil level in the other travel reduction
gear.
MAINTENANCE
Horizontal Oil Level
7-40
Air Release Plug 1
(Oil Supply Plug)
Oil Level Check
Plug 2
Drain Plug 3
MDAA-07-047
1
2
M157-07-170
3