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30 Testing and adjusting
3)
While running the engine at high idle, per-
form step 2).
4)
While running the engine at low idle, move
the piston rod to the stroke end and
relieve the oil.
5)
Bleed air from the arm cylinder and bucket
cylinder according to steps 2) – 4).
4.
Bleeding air from swing motor
1)
Run the engine at low idle.
2)
Swing slowly to bleed air.
5.
Bleeding air from travel motor
1)
Run the engine at low idle.
2)
Loosen air bleeder (2) and check that oil
oozes out through the air bleeder.
3)
After the oil oozes out, tighten air bleeder
(2).
3
Air bleeder:
27.5 – 35.3 Nm {2.8 – 3.6 kgm}
6.
Checking oil level and starting work
1)
Run the engine, retract the arm cylinder
and bucket cylinder to the stroke ends,
lower the work equipment to the ground,
and stop the engine.
PC210, 230, 240-8
2)
Check the oil level by sight gauge (3) on
the rear side of the hydraulic tank.
a If the oil level is below line L, it is
insufficient. Add oil.
a The oil level changes according to the
oil temperature. Add oil when the oil
level is out of the following standard
ranges.
When oil temperature is 10 – 30°C:
q
Between line H and line L
When oil temperature is 50 – 80°C:
q
UEN00228-04
Near line H
57
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Table of Contents
Troubleshooting
