Hitachi ZAXIS 70 - Transmission; Travel Reduction Gear

MAINTENANCE
7-22
C. TRANSMISSION
Travel Reduction Gear
Check Oil Level --- every 250 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.
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 posi-
tion.
CAUTION: Keep body and face away from the air
release plug. Gear oil is hot. 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.
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 the oil level
check plug 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
x
m (5.1 kgf
x
m, 36
lbf
x
ft).
12. Check the gear oil level in the other travel reduction
gear.
M107-07-096
M1CC-07-019
Horizontal Oil Level
Drain Plug 3
Oil Level Check
Plug 2
Air Release Plug 1
(Oil Supply Plug)
3
2
1