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4
HYDRAULIC TANK
DISASSEMBLY AND ASSEMBLY
Bleeding the air
After replacing the hydraulic oil, bleed the air from the hy-
draulic circuit and the hydraulic units. Failure to do so may
damage the hydraulic devices.
Hydraulic pump
1. Loosen the air-bleeding plug (1) of the hydraulic
pump.
2. Tighten the plug (1) once the hydraulic oil overflows
from the hole.
Cylinders
1. Start the engine and let it run at a low-idling speed for
10 minutes.
2. While the engine runs at low-idle, extend and retract
each cylinder 4 or 5 times, without letting them reach
the stroke end.
3. While running the engine at high speed, extend and
retract each cylinder 4 or 5 times, without letting them
reach the stroke end.
4. Return the engine speed to low idle, then extend and
retract each cylinder 4 or 5 times up to the stroke
end.
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