Komatsu WA800-3E0, Operation & Maintenance Manual

Page: 282 / 336

SERVICE PROCEDURE
MAINTENANCE
4-58
REPLACE TRANSMISSION OIL FILTER ELEMENT 4
WARNING
q
The parts and oil are at high temperature after the engine is stopped, and may cause serious burns.
Wait for the temperature to go down before cleaning the engine breather.
q
When using compressed air, there is a hazard that dirt may be blown up and cause serious injury.
Always use safety glasses, dust mask, or other protective equipment.
1. Stop the engine and wait for the temperature at all parts to
go down.
2. Loosen bolt (1), then remove cover (2) under the brake
component box.
3. Set a container under filter case (3) to catch the oil.
4. Remove drain plug (4) at the bottom of the filter case, drain
the oil, then tighten the plug again.
5. Loosen hexagon part (5) of case (3), then remove case (3).
6. Remove the element and clean the inside of the case.
7. Replace the filter gasket and O-ring with new parts. Coat
the new gasket and O-ring thinly with clean oil before
installing.
8. Assemble the new element, then set the case in position
and install it.
Drain mount tightening torque: 49 to 58.8 Nm (5 to 6 kgm)
Case tightening torque: 58.8 to 78.5 Nm (6 to 8 kgm)
9. Run the engine at idle for a short time, then check that the
oil is up to the specified level. For details, see “CHECK
TRANSMISSION OIL LEVEL, ADD OIL (4-28)“.