AIR CONDITIONER COMPRESSOR SERVICE
This task covers:
a. General Information
All except M915A2 and M916A1
Tools and Special Equipment:
Tool Kit, SC 5180-90-CL-N26
Shop Equipment, SC 4910-95-CL-A31
Gage, Oil Level. 99-431
Appendix B, Item 43.1
General Safety Instructions:
Do not remove air conditioner compressor oil
fill plug without first recovering the system.
Failure to recover the system could cause
uncontrolled release of
refrigerant, which can freeze skin and eye
tissue causing serious Injury or blindness.
l Always use the correct refrigerant oil in R-134a air conditioning
system. Never mix oils. If the wrong oil is used, or if oils are
mixed, the compressor could seize due to improper lubrication.
l Refrigerant oil must be from a container that has not been opened
or that has been tightly sealed since its last use. Tubing, funnels,
or other equipment used to transfer refrigerant oil should be very
clean and dry. Failure to follow this caution may result in
contamination of system.
Replacing only the amount of refrigerant oil that was removed during evacuation may result
in the wrong oil charge; oil charge may have been incorrect prior to evacuation. The only way
to ensure proper oil charge is to check the oil level in the compressor with an oil level gage.