123
MAINTENANCE
Every 1000 Hours
11. Loosen the bolts, and remove the flange
(8).
12. Remove the suction strainer (9) and
clean it.
13. Clean the inside of the hydraulic tank.
14. Install the new return filter.
Refer to page 107 “Replacing the
Hydraulic Oil Return Filter”.
15. Install the suction strainer (9) to the flange
(8).
16. Install the flange (8).
17. Tighten the drain plug (7).
18. Add hydraulic oil up to the middle of the
sight gauge (2) from the hole of plug (1).
19. Tighten the plugs (1).
20. Follow the procedure next “Bleeding the
air” to bleed the air from the hydraulic oil
circuit.
21. Set the machine to the hydraulic oil level
inspection posture and inspect the level
once the temperature of the oil has
dropped.
Refer to page 105 “Inspecting the
Hydraulic Oil Level and Replenishing”.
Bleeding the air
IMPORTANT: After replacing the hydraulic
oil, bleed the air from the hydraulic circuit
and hydraulic devices. Failure to do so
may damage the hydraulic devices.
¡¡
¡¡
¡Hydraulic pump
1. Tilt up the ROPS.
2. Remove the plug (1) from the hydraulic
pump.
3. Once hydraulic oil overflows from the plug
hole, connect the plug (1).
¡¡
¡¡
¡Cylinders
1. Start the engine and run it at low idle for
10 minutes.
2. Set the engine to a low idle, then extend
and contract all the cylinders 4 or 5 times,
without going to the stroke end.
3. Run the engine at high speed, then extend
and contract all the cylinders 4 or 5 times,
without going to the stroke end.
4. Set the engine back to a low idle, then
extend and contract all the cylinders 4 or
5 times to the stroke ends.
T7G024
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