Compressor - ’l’ series

COMPRESSOR - ’L’ SERIES

Service repair no - 82.10.20

Remove

1. Disconnect battery earth lead.
2. Recover refrigerant from A/C system. See Adjustments.
3. Remove auxiliary drive belt See ELECTRICAL, Repairs.

4. Disconnect multiplug from A/C compressor.
5. Remove 2 bolts securing A/C pipe unions to compressor.
6. Release A/C pipe unions from compressor.
7. Remove and discard 2 ’O’ rings from compressor.

CAUTION: Immediately cap all air conditioning pipes to prevent ingress of dirt and moisture into the system.

8. Remove 4 through bolts securing compressor to engine.
9. Manoeuvre compressor from mounting bracket, remove compressor from beneath vehicle.

Fitting a new compressor

A new compressor is sealed and pressurised with Nitrogen gas, slowly release the sealing cap, gas pressure should be heard to release as the seal is broken.

NOTE: A new compressor should always have it’s sealing cap in place and must not be removed until immediately prior to fitting.

A new compressor is supplied with an oil fill quantity₃₃ (Xcm ) of 150 ± 20 cm . A calculated quantity of oil must be drained from a new compressor before fitting.

To calculate the quantity to be drained:

1. Remove the drain plug from the old compressor.
2. Invert compressor and gravity drain the oil into a calibrated measuring cylinder. Rotating the compressor clutch plate will assist complete draining.₃
3. Note the quantity of oil drained (Ycm )
4. Calculate the quantity of oil to be drained from the NEW compressor using the following formula:

Xcm3- (Ycm3+ 20cm3) = Qcm3

5. Remove drain plug from new compressor and₃ drain Qcm of oil. Fit and tighten compressor drain plug.