128
MAINTENANCE
13. Remove the suction strainer (7) and
clean it.
14. Clean the inside of the hydraulic tank.
15. Install the new return filter and suction
strainer (7).
16. Install the cover (2) and connect the
adapter (9).
17. Install the flange (6) and connect the
hose.
18. Tighten the drain plug (5).
19. Insert hydraulic oil through the hole in the
vent plug (1), adding hydraulic oil to
between the upper limit (H) and lower
limit (L) of the sight gauge (4).
20. Follow the procedure under “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 110 “Inspecting the
Hydraulic Oil Level and Replenishing”.
22. Pressurize the hydraulic tank.
Refer to page 110 “Pressurizing the
hydraulic tank”.
Bleeding the air
IMPORTANT: After replacing the hydraulic
oil, bleed the air from the hydraulic oil circuit
and hydraulic devices. Failure to do so may
damage the hydraulic devices.
1. Loosen the hydraulic pump’s air bleeding
plug (1).
2. Once hydraulic oil overflows from the hole
in the air bleeding plug (1), tighten the plug.
3. Start the engine and run it at low idle for
10 minutes.
4. Set the engine to a low idle, then extend
and contract all the cylinders 4 or 5 times,
without going to the stroke end.
5.Run the engine at high speed, then extend
and contract all the cylinders 4 or 5 times,
without going to the stroke end.
6. Set the engine back to a low idle, then
extend and contract all the cylinders 4 or
5 times to the stroke ends.
Inspecting the Engine Fuel
Injection Timing
This operation requires experience. Have it
performed by a Takeuchi sales or service
outlet.
Inspecting the Engine Fuel
Injection Valve
This operation requires experience. Have it
performed by a Takeuchi sales or service
outlet.
Every 2000 Hours
1
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