Swing Reduction Gear - Hitachi 120-3 class Operator's Manual

2

Swing Reduction Gear

Check Oil Level --- every 250 hours
1. Park the machine on a level surface.
2. Lower the bucket to the ground.
3. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the
engine is not properly shut down.
4. Run the engine at slow idle speed without load for five
minutes.
5. Stop the engine. Remove the key from the key switch.
6. Pull the pilot control shut-off lever to the LOCK position.
7. Remove dipstick (1). Oil must be between marks.
8. If necessary, remove oil filler cap (2) and add oil. (See
gear oil chart)
9. Recheck oil level.
Change Gear Oil --- every 1000 hours
1. Park the machine on a level surface.
2. Lower the bucket to the ground.
3. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the
engine is not properly shut down.
4. Run the engine at slow idle speed without load for five
minutes.
5. Stop the engine. Remove the key from the key switch.
6. Pull the pilot control shut-off lever to the LOCK position.
CAUTION: Gear oil may be hot just after operation.
Wait for gear oil to cool before starting work.
7. Remove the drain plug mounted on the end of drain pipe
to drain oil.
8. Reinstall the drain plug.
9. Remove oil filler cap (2) and add oil until it is between the
marks on dipstick (1).
10. Reinstall the oil filler cap.
MAINTENANCE
7-24
2
1
Specified Range
M178-07-086
1
M104-07-017