Change Gear Oil - Hitachi EX 3600-6 Operator's Manual

Change Gear Oil

--- every 2000 hours (first time after 500 hours)
1. Drive the machine until oil is warm to drain completely.
DO NOT drive the machine until oil is hot.
2. Park the machine on a level surface.
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 oil
level check plug (air release plug) (1). Gear oil
may be hot just after operation. Be sure to wait
for gear oil to cool and then gradually loosen oil
level check plug (air release plug) (1) to release
pressure.
8. After gear oil has cooled, slowly loosen oil level check
plug (air release plug) (1) to release pressure.
9. Prepare a container of 220 L (58 US gal) or more
capacity for the drain oil.
10. Remove drain plugs (2) to drain oil.
11. Check if foreign materials like metal particles are in-
cluded in the drain oil by filtering it with a clean cloth.
12. Wrap the threads of drain plug (2) with sealing- type
tape. Install drain plug (2).
Tighten the plug to 69 N m (7 kgf m, 51 lbf ft).
13. Remove oil level check plug (1).
14. After oil supply plug (3) has removed, add oil until oil
flows out of the oil level check plug hole. Be sure to
use only recommended oil. (See Recommended
Gear Oil Chart.)
15. Wrap the threads of oil level check plug (1) with
sealing-type tape. Reinstall oil level check plug (1)
and tighten it to 69 N m (7 kgf m, 51 lbf ft).
16. Wrap the threads of oil supply plug (3) with
sealing-type tape. Reinstall oil supply plug (3) and
tighten it to 196 N m (20 kgf m, 145 lbf ft).
17. Repeat steps 7 to 13 for the other travel reduction gear.
18. Start the engine and drive the machine at slow speed
for about 5 minutes. Stop the engine.
Ten to twenty minutes later, check oil level again and
add oil if necessary.
NOTE: Always allow oil to settle before checking the
level. This may require 15 minutes.
MAINTENANCE
3
7-50
2
Clean Cloth
Container
1
M145-07-048
3
M145-07-079
M107-07-095