Komatsu WA500-6H, Operation & Maintenance Manual

Page: 324 / 412

4.9 Service procedure
Every 1000 hours service
Maintenance
4-70
WA500-6H – VEAM430100
Replace transmission oil filter element
WARNING
z The parts and oil are at high temperature after the engine is
stopped, and may cause serious burns. Wait for the temper-
ature to go down before cleaning the engine breather.
z
When using compressed air, there is a hazard that dirt may
be blown up and cause serious injury.
z
Always use safety glasses, dust mask, or other protective
equipment.
1. Remove cover (1) and set the container to catch the oil
under the filter case.
2. Remove drain plug (2) at the bottom of the filter case, drain
the oil, then tighten the plug again.
3. Loosen hexagonal portion (4) of case (3), then remove case
(3).
4. Take out element, then clean the inside of the case.
5. Replace the filter gasket and O-ring with new parts. Coat the
gasket and O-ring thinly with clean engine oil before install-
ing.
6. Install a new element, then install case (6) and tighten it
using hexagon part (7).
Drain mount tightening torque:
49 to 58.8 N·m (5 to 6 kgf·m, 36.2 to 43.4 lbft)
Case tightening torque:
58.8 to 78.5 N·m (6 to 8 kgf·m, 43.4 to 57.9 lbft)
7. Run the engine for a short time at idling, then check that the
oil is at the specified level.
For details, see "Check transmission oil level, add oil (4-36)".
GK050245
1
GK050246
3
2
F
GK050247
3
4
2