Komatsu PC88MR-10 Shop Manual page 1408

Hydraulic excavator
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80 Appendix
Handling of compressor oil
Compressor oil will be drained from the air conditioner circuit by flushing.
Install the new compressor, which is filled with the specified capacity (180 cc) of compressor oil.
Other cases
a A new compressor is filled with 180 cc of compressor oil.
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.
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).
Applying compressor oil to O-rings
Whenever connecting piping or hoses, the compressor oil (ND OIL8) must be applied to O-rings in order
to prevent the leakage of refrigerant.
80-84
PC88MR-10

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