IHI 9NX - Change the Return Filter

MAINTENANCE
Change the Return Filter
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
O on the hydraulic tank.
Remove the retum filter O only after the engine
has been stopped and the return filter is cool
enough to touch with your bare hand.
L
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
O.
3. Clean the areato keep dirt out of the filter base @.
4. Remove the used filter O by filter wrench. Clean
the filter base
@.
NOTE: This is a cartridge type element. It cannot be
reused.
5. Coat the gasket O of new finer with clean hydraulic
oil.
6. Install the new filter O by hand. When the seal
contacts the base. tighten an additional
314 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
O to supply
air to the hydraulic tank, tighten the plug again.
9. Start and operate the engine. Inspect for leaks on
the oil filter
8.
fi When operation breaker works, replace the return
filter every 100 hours operation.
* Replace this filter in 50 hours for the initial time only.
0 Fill plug
\
Return filter
Fill plug