Dodge ZB 2005, Service Manual

Page: 1040 / 1873

A/C CLUTCH COIL SPECIFICATIONS
Compressor Current Draw Coil Resis-
tance
Denso 10S17 3.3 amps @
11.5 - 12.5
volts 3.6 ohms
STANDARD PROCEDURE
A/C CLUTCH INSPECTION
NOTE: The A/C clutch can be serviced in the vehi-
cle. The refrigerant system can remain fully-charged
during
compressor clutch, pulley and bearing
assembly, or coil replacement.
Examine the friction surfaces of the clutch pulley
and the clutch plate for wear (Fig. 2). The pulley and
plate should be replaced if there is excessive wear or
scoring.
If the friction surfaces are oily, inspect the shaft
and nose area of the A/C compressor for refrigerant
oil. If refrigerant oil is found, the compressor shaft
seal is leaking and the A/C compressor must be
replaced.
Check the clutch pulley bearing for roughness or
excessive leakage of grease. Replace the pulley and
bearing assembly, if required.
A/C CLUTCH BREAK-IN
After a new A/C compressor clutch has been
installed, cycle the compressor clutch approximately
twenty times (five seconds on, then five seconds off).
During this procedure, set the A/C-heater controls to
the A/C Recirculation Mode, the blower motor in the
highest speed position, and the engine speed at 1500
to 2000 rpm. This procedure (burnishing) will seat
the opposing friction surfaces and provide a higher
compressor clutch torque capability.
REMOVAL
NOTE: The compressor clutch can be serviced in
the vehicle. The refrigerant system can remain fully-
charged during compressor clutch, pulley, or coil
replacement.
(1) Disconnect and isolate the negative battery cable.
(2) Remove the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(3) Raise and support the vehicle.
(4) Disconnect the engine wire harness connector
for the compressor clutch coil from the clutch coil pig-
tail wire connector on the top of the A/C compressor.
(5) Remove the bolts that secure the A/C compres-
sor to the engine and support the A/C compressor.
(6) Remove the compressor shaft bolt (Fig. 3). A
band-type oil filter wrench or a strap wrench may be
used to secure the clutch during bolt removal.
Fig. 2 Clutch Plate and Shim(s)
1 - A/C COMPRESSOR SHAFT
2 - CLUTCH PLATE
3 - SHIM
Fig. 3 A/C Compressor Shaft Bolt
1 - BOLT
2 - COMPRESSOR CLUTCH PLATE
ZB
CONTROLS 24 - 11
A/C COMPRESSOR CLUTCH (Continued)