IHI 17VX3 Service Manual page 106

MAINTENANCE
• Change the Return Filter
- - - - - - - [ m C A U T I O N
1]--------
* Hot oil and components can cause personal injury. Do
not allow hot oil or components to contact the skin.
* At operating temperature, the hydraulic tank is hot and
can be under pressure.
* To relieve the pressure from the hydraulic tank, loosen
the oil fill plug
CD
on the hydraulic tank.
* Remove the return filter
®
only after the engine has
been stopped and the return filter is cool enough to
touch with your bare hand.
1. Lower the bucket on the ground and stop the engine.
2. Relieve the internal pressure from the hydraulic tank by
loosening oil fill plug
CD.
3. Clean the area to keep dirt out of the filter base
@.
4. Remove the used filter
®
by filter wrench. Clean the filter
base
@.
NOTE: This is a cartridge type element. It cannot be reused.
5. Coat the gasket
®
of new filter with clean hydraulic oil.
6. Install the new filter
Q)
by hand. When the seal contacts the
base. Tighten an additional 3/4 turn by filter wrench.
7. Start and run the engine to fill the filter. Stop the engine.
Maintain the oil level between marks on the level gauge. Add
oil if necessary.
8. Pressurize the hydraulic tank. After fully extending all the
cylinders and loosen oil fill plug
CD
to supply air to the
hydraulic tank, tighten the plug again.
9. Start and operate the engine. Inspect for leaks on the oil filter
®.
'*
When operation breaker works, replace the return filter every
100 hours operation.
'*
Replace this filter in 50 hours for the initial time only.
4-8-2
17VX3
500 HOURS