Hose/Line HVAC: Service and Repair

1. Drain the refrigerant from the system.
2. Disconnect the negative battery cable.
3. Disconnect the refrigerant pressure switch (HI) connector, then remove cooler pipe No.3.
4. Remove the bolts and slide the coolant reservoir, then remove the cooler hose (HI), (LO), cooler pipe No.1, No.2, No.3, and No.4.
5. Remove the headlight (RH), then remove cooler pipe No.1 and No.3.
6. Remove the radiator grille and splash shield, then remove cooler pipe No.3.
7. Remove the accumulator tank, then remove cooler pipe No.5.

CAUTION: If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always Immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.




8. Remove in the order indicated in the table. Do not allow compressor oil to spill.

CAUTION: If the O-ring is damaged during installation, gas leakage can occur. In order to prevent damaging the O-ring, first hand-tighten the nut or bolt on the piping connection, then use a wrench to tighten Into the specification.

9. Install in the reverse order of removal.
10. Recharge with refrigerant.
11. Perform the refrigerant system performance test.

Refrigerant Lines Removal Note
Loosen the nut by using 2 spanners, then remove the cooler pipe.

Refrigerant Lines Installation Note
- Tighten the nut by using a spanner and a torque wrench, then install the cooler pipe or hose.
- Apply compressor oil to O-rings and connect the joint.
- When installing a new cooler pipe or hose, add SP-20 compressor oil into the refrigeration cycle.

Supplemental amount: 10 ml {10 cc, 0.3 fl oz}