Hose/Line HVAC: Service and Repair

HOSE AND PIPE

REMOVAL

CAUTION:
- When disconnecting hoses, do not apply an excessive force to them.
- Seal the disconnected hose with a plug or vinyl tape to prevent foreign matter from entering.

1. Disconnect the ground cable from battery.
2. Using the refrigerant recovery system, drain the refrigerant.
3. Remove the bolts and screws and detach the hoses and pipes.






INSTALLATION

CAUTION:
- Do not start the engine before charging refrigerant.
- If the engine is started with no refrigerant charge, replace the compressor.
- Replace the O-rings with new parts, and then apply compressor oil.
- When connecting hoses, do not apply an excessive force to them. After installing, check that no torsion or excessive tension applied to the hoses.

1. Install each part in the reverse order of removal.
2. Charge refrigerant.

AIR CONDITIONING UNIT
Tightening torque:
T1: 5 N.m (0.51 kgf.m, 3.7 ft.lb)
T2: 7.5 N.m (0.76 kgf.m, 5.5 ft.lb)
T3: 10 N.m (1.02 kgf.m, 7.4 ft.lb)