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WARNING:
Should refrigerant HFC-134a (R-134a) strike your eye(s), consult a doctor immediately.
• Do not use your hand to rub affected eye(s). Instead, use quantities of fresh cold water to splash it
over affected area to thus gradually raise its temperature above the freezing point.
• Obtain proper treatment as soon as possible from a doctor or eye specialist. Should liquid refriger-
ant HFC-134a (R-134a) get on your skin, such affected part should be treated in the same manner as
when skin is frostbitten or frozen.
SERVICE PRECAUTION
When servicing air conditioning system, note the following instructions.
REFRIGERANT LINE
1. Suction hose:
Apply compressor oil (refrigerant oil) to O-ring.
2. Discharge hose:
Apply compressor oil (refrigerant oil) to O-ring.
3. Condenser outlet pipe:
Apply compressor oil (refrigerant oil) to O-ring.
• Never use heat for bending pipes. When bending a pipe, try to make its bending radius as slight as possible.
• Keep internal parts of air conditioning free from moisture and dirt. When disconnecting any line from system,
install a blind plug or cap to the fitting immediately.
• When connecting hoses and pipes, apply a few drops of compressor oil (refrigerant oil) to seats of coupling
nuts and O-ring.
• When tightening or loosening a fitting, use two wrenches, one for turning and the other for support.
• Tighten flared nuts by the following specified torque.
Tightening torque
8 mm pipe : 13 N·m (1.3 kg-m, 9.5 lb-ft)
12 mm pipe : 23 N·m (2.3 kg-m, 16.6 lb-ft)
14.5 mm pipe : 33 N·m (3.3 kg-m, 23.8 lb-ft)
ON-VEHICLE SERVICE
4. Expansion valve:
Apply compressor oil (refrigerant oil) to O-ring.
5. A/C refrigerant pressure switch:
Apply compressor oil (refrigerant oil) to O-ring.
AIR CONDITIONING (OPTIONAL) 1B-27
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