TRUCK SERVICE MANUAL
BODIES AND CABS
Fig. 42 Removing Magnetic Clutch
For clutch service instructions, refer to Body and Cabs,
Section CTS-2577 of the Truck Service Manual.
Install field coil assembly (or stationary brush
assembly) on compressor body. Tighten mounting
bolts finger tight only.
Position drive key in slot of compressor crankshaft.
Position clutch assembly on crankshaft and install
clutch retainer bolt.
Using spanner wrench (SE-2392-4) to hold clutch
hub, tighten clutch retainer bolt to specified torque
(see Bolt Torque Chart).
Rotate pulley by hand and check for interference
between pulley and field coil assembly (or stationary
brush assembly). Interference is indicated by a
rubbing noise heard when pulley rotates. If
necessary, adjust position of field coil (or stationary
brush assembly) to avoid interference. Tighten
Install compressor drive belt(s).
Check pulley alignment and adjust drive belt(s) to
specified belt tension (see SPECIFICATIONS).
Connect clutch feed wire to engine wiring harness.
Operate engine and check magnetic clutch operation.
Remove radiator grille.
Raise hood and fender assembly.
Discharge air conditioning system as outlined under
Disconnect inlet and outlet hoses from condenser.
Install caps or tape on hose and condenser openings
to prevent entry of foreign material.
Remove condenser mounting bolts (Fig. 43) and
remove condenser from radiator support.
Fig. 43 Condenser Mounting (Typical)
Position condenser on radiator support and install
Remove caps or tape from condenser and refrigerant
Lubricate hose fittings with refrigerant oil and
connect refrigerant hoses to condenser.
Evacuate and charge air conditioning system as
outlined under SERVICE OPERATIONS.
Lower hood and fender assembly.
Reinstall radiator grille.
Make sure key switch is "OFF".
CTS-2731 Page 28
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