Air Conditioner — Refrigerant Lines: On-vehicle Inspection, Removal / Installation

G-71prose procedure

REFRIGERANT LINES

Check for leakage at all connections by using a gas leak tester. (Refer to page G-51.) Repair or replace as necessary.

1
Discharge the refrigerant from the system.
2
Remove as shown in the figure. Immediately plug all open fittings to keep moisture out of the system.
3
Install in the reverse order of removal. Apply clean compressor oil to the O-rings before connecting the fittings; do not apply compressor oil to the fitting nuts. When installing a new pipe or hose, add 5 ml {5 cc, 0.2 fl oz} of compressor oil through the high pressure side of the A/C compressor.
4
Evacuate, charge, and test the refrigeration system.

Specification	Value
Refrigerant line fitting torque (upper hoses)	≈98 - 186N·m
Refrigerant line fitting	≈147 - 206N·m
Refrigerant line fitting torque (lower)	≈147 - 235N·m
Compressor oil added with new pipe/hosethrough high pressure side of A/C compressor	5ml {5 cc, 0.2 fl oz}

Refrigerant line fitting torque (upper hoses)

98 - 186N·m

Refrigerant line fitting

147 - 206N·m

Refrigerant line fitting torque (lower)

147 - 235N·m

Compressor oil added with new pipe/hosethrough high pressure side of A/C compressor

5ml {5 cc, 0.2 fl oz}