5-53
MAINTENANCE
Bleeding the air
IMPORTANT: After replacing the hydraulic
oil or hydraulic devices, or after
performing maintenance of the hydraulic
devices, bleed air from the hydraulic
circuits and hydraulic devices. Failure to
do so may damage the hydraulic devices.
• Hydraulic pump
<TL8>
1. Tilt up the canopy.
Refer to “Tilting up the canopy” on page
5-61.
2. Loosen the vent plug (1) on the hydraulic
pump.
3. Once hydraulic oil overflows from the vent
plug hole (1), tighten the vent plug (1).
EVERY 1000 HOURS
INSPECTING AND ADJUSTING THE
ENGINE VALVE CLEARANCE
This operation requires experience. Ask your
sales or service dealer for it.
<TL10/TL12>
• Cylinders
1. Start the engine, and let it run at a low-
idling speed for 10 minutes.
2. Maintain the engine at low idle, then
extend and retract each cylinder 4 or 5
times, without let them reach the stroke
end.
3. Run the engine at high speed, then extend
and retract each cylinder 4 or 5 times,
without let them reach 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.