Mitsubishi 3000GT 1991, Service Manual

Page: 1110 / 1146

55-28
HEATERS AND MANUAL AIR CONDITIONER
SERVICE POINTS OF REMOVAL
1. REMOVAL OF COMPRESSOR DRIVE BELT
(1) Loosen bolt “A” for holding the tension pulley.
(2) Loosen bolt “B” for adjustment, and remove the
compressor drive belt.
3. REMOVAL OF SUCTION HOSE AND DISCHARGE HOSE
If the hoses are disconnected, cap the hoses with a blank
plug to prevent entry of dust, dirt, and water.
5. REMOVAL OF COMPRESSOR
Caution
Lay the towel on the brake tube to protect them. When
install the compressor, do not damage the brake tubes.
This work must be done carefully so as not to spill the
compressor oil.
INSPECTION
l
Checking for heat damage of the tension pulley.
l
Check for excessive play or deflection of the tension pulley.
l
Check for unusual wear of the tension pulley.
l
Check for hardening of the air conditioner belt.
l
Check for unusual wear or abrasion of the air conditioner ,
belt.
OPERATION CHECK OF THE COMPRESSOR’S MAGNETIC
CLUTCH
(1) Connect terminal at the compressor side to the positive
terminal of the battery, and ground the negative
terminal of the battery to the compressor.
(2) The condition of the compressor’s magnetic clutch can be
considered satisfactory if the operation sound (a “click”
sound) of the magnetic clutch can be heard when this
check is made.
SERVICE POINTS OF INSTALLATION
5. INSTALLATION OF COMPRESSOR
If a new compressor is installed, first adjust the amount of
oil according to the procedures described below, and then
install the compressor.
(1) Measure the amount (X cc) of oil within the removed
compressor.
(2) Wipe away (from the new compressor) the amount of
oil calculated according to the following formula, and
then install the new compressor.
New compressor oil amount cc (9.8 X cc
Y cc
NOTE
Y cc indicates the amount of oil in the refrigerant line,
the condenser, the cooling unit, etc.
TSB Revision