Komatsu PC200-8M0 Shop Manual page 1232

SEN06151-00
3. Replacement of compressor
q In case of compressor seizure or breakage.
Metal chips will circulate through the air condi-
tioner circuit and contaminate the compressor oil
extremely.
In this case, flush the air conditioner circuit and
replace the compressor and receiver drier.
The compressor oil is removed from the air
conditioner circuit by flushing. Accordingly,
install a new compressor with the oil of the spec-
ified quantity (180 cc) filled in it.
Other cases
q
a New compressor contains compressor oil of 180
cc in it.
1) Prepare an oil container and drain oil from
the old compressor.
2) Measure the quantity of the drained oil with a
measuring cylinder, and note the quantity or
mark the level.
3) Drain below-mentioned quantity of oil from
the new compressor.
Quantity to be drained = 180 cc - "Noted
quantity"
Example: If 30 cc was drained from the
removed compressor, the quantity to be
drained from the new compressor would be
150 cc (i.e., 180 - 30 cc).
74
80-100
4. Applying compressor oil to O-rings
Whenever connecting piping or hoses, the com-
pressor oil (ND-OIL8) must be applied to O-rings in
order to prevent the leakage of refrigerant.
PC200, 200LC, 220, 220LC-8M0
100 Air conditioner
Handling of compressor oil