SAFETY PRECAUTIONS
CAUTION: DENSO compressors are sealed, pressurized and contain factory-specified
amounts of refrigerant oil used in the original design of the unit. PRIOR to removal of shipping
plates or unit installation, you must read these instructions.
• Always wear safety goggles.
• Avoid skin contact with refrigerant or refrigerant oil.
• Work in a well-ventilated area.
• Never release refrigerant into the atmosphere.
• Never expose refrigerant container to direct heat or temperature in excess of 125˚F.
• Never expose refrigerant to an open flame.
NOTE: Compressor type identification can be found on the rear housing which is opposite of the
magnetic clutch.
Compressor Removal Procedures
Before removal of the compressor, please refer to the appropriate manufacturer's service
manual for complete instructions.
1. Disconnect negative ground (-) cable from battery.
2. Disconnect A/C compressor lead wire from the vehicle harness.
3. Using a certified refrigerant recovery
machine, reclaim the old refrigerant
from the A/C system.
Refrigerant
Compressor Type
Reciprocating –
Swashplate
Rotary –
ThroughVane
4. Disconnect the suction and discharge hoses from the compressor and quickly cap the
hose ends to reduce the amount of moisture entering the A/C system.
5. Loosen and remove the compressor drive belt.
6. Remove compressor mounting bolts and remove compressor.
NOTE: The compressor contains a complete system charge of refrigerant lubricant however,
you must compare the level of compressor lubricant between the new compressor and the
compressor being replaced (See Fig.1).
2
R-134a
R-12
(HFC 134a)
(CFC 12)
ND-OIL8
ND-OIL6
ND-OIL9
ND-OIL7
Fig. 1