Mitsubishi 3000GT Service Manual page 1264

55-44
HEATERS AND MANUAL AIR CONDITIONING - Compressor
(1) Use the special tool to tighten the nut.
(2) Check whether or not the air gap of the clutch is within
the standard value.
Standard value: 0.4-0.6 mm (.Ol-.02 in.)
NOTE
If there is a deviation of the air gap from the standard
value, make the necessary adjustment by adjusting the
number of shims.
INSPECTION
Check the surface of the armature for scoring or bluing.
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Check the surface of the rotor for scoring or bluing.
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Check the sealing surfaces for cracks, scratches and
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deformation.
Check the front housing for cracks or scoring on the sealing
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surfaces.
Check the compressor shaft for scoring.
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HIGH PRESSURE RELIEF VALVE CHECK'
The high pressure relief valve is a safety feature which releases
part of the refrigerant inside the system into the atmosphere
when the high pressure level exceeds 3,550 kPa (505 psi):
R-12, 3,740 kPa (532 psi): R-134a during air conditioning
operation.
Once the pressure inside the system has been reduced to
2,400 kPa (341 psi) or lower: R-12, 2,940 kPa (418 psi) or
lower: R-134a, the high pressure relief valve .closes, thus
allowing continued operation.
00002628
(1) If a leak is detected at section A, replace the high pressure
relief valve. The valve can be used unless there is a
leak from that section.
(2) If a leak is detected at section B, retighten the valve.
If the leak still persists after retightening the valve, replace
the packing.
TSB Revision