REFRIGERANT LINE REMOVAL/INSTALLATION [L3]

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1. Discharge the refrigerant from the system. (See DISCHARGING AND RECOVERY.)

2. Remove in the order indicated in the table. Do not allow remaining compressor oil in the A/C compressor and pipes to spill.

Caution

• If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise or other malfunction could occur. Always plug open fittings immediately after removing any refrigeration cycle parts.

3. Install in the reverse order of removal.

4. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM TESTS.)


1	Cooler hose (LO) (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
2	Cooler pipe No.3 (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
3	Cooler hose (HI) (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
4	Cooler pipe No.1 (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
5	Cooler pipe No.2 (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
6	Cooler pipe No.4 (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)
7	Accumulator tank (See Refrigerant Line Removal Note) (See Refrigerant Line Installation Note)

Refrigerant Line Removal Note

Nut joint type

1. Loosen the nut using two spanners, then remove the refrigerant line.

Block joint type

1. Disconnect the block joint type pipes by grasping the female side of the block with pliers or similar tool and holding firmly, then remove the connection bolt or nut.

Spring-lock coupling type

1. Set the SST.

2. While looking through the inspection hole of the SST, insert the protruding part of the SST until it makes contact with the cage section.

3. Use the SST to disconnect the male pipe or hose from the female by pulling the male pipe or hose.

Note

• The male pipe or hose can be disconnected easily from the female pipe by pulling from the male pipe or hose while maintaining the pressure of the protruding part of the SST.

Refrigerant Line Installation Note

1. Apply compressor oil to the O-ring joints.

2. Tighten the joints.

Nut or block joint type

1. Tighten the nut or bolt of joint by hand.

2. Tighten the joint to specified torque. If it is a nut joint, tighten the nut with spanner and torque wrench.

3. Connect the block joint type pipes by grasping the female side of the block with pliers or similar tool and holding firmly, then tighten the connection bolt or nut with a torque wrench.

Spring-lock coupling

1. Connect the male pipe or hose by twisting it onto female pipe until the garter spring at the male pipe or hose is over the flared end of female pipe.

Note

• When the male pipe or hose is replaced, the indicator ring comes out after connecting to indicate that it is locked.