chevrolet truck Light Duty Truck 1994 Series, Repair Manual

Page: 30 / 919

• C om pressor m ounting holes are metric. Use
proper
m etric bolts with holding fixture
J 2 5008-A .
T hread the Clutch Plate and Hub A ssem bly R em over J
3 3 013-B , into the hub. Hold the body o f the Rem over
with a w rench and turn the center screw into the
R em over body to rem ove the Clutch Plate and Hub
assem bly (Fig. 5).
R em ove the shaft key.
Install or Connect
Install the shaft key into the hub key groove (Fig. 6).
A llow the key to project approxim ately 4.8m m (3/16")
out o f the key way.
The shaft key is curved slightly to provide an
interference lit in the shaft key groove o f the hub.
Be sure the frictional surface o f the clutch plate and the
clutch rotor are clean before installing the Clutch Plate
and Hub assem bly.
Align the shaft key with the shaft keyw ay and place the
C lutch Plate and Hub assem bly onto the com pressor
shaft.
1 -D R IV E PLATE
INSTALLER
J 94 01-B
2 -D R IV E PLATE
INSTALLER
BEARING
3 -A IR GAP
(.020" - .030")
4 -C L U T C H PLATE
AN D HUB ASM.
520011-1D1-R1
Fig. 7 Installing Clutch Plate & Hub Asm.
NOTICE: To avoid internal dam age to the
com pressor, do not drive or pound on the clutch hub or
shaft.
4.
5.
Install the C lutch Plate and Hub Installer J 9 4 0 1-
illustrated in Figure 7.
-B as
H old the hex portion o f the Installer Body J 9 4 0 1-B with
a w rench and tighten the center screw to press the hub
onto the shaft until there is a 0 .5 -7 .6 m m ( .0 2 0 - 0 3 0 " ) air
gap betw een the frictional surfaces o f the clutch plate
and clutch rotor.
I f operation is perform ed w ith com pressor on vehicle,
connect drive belt, tighten m ounting brackets and adjust
belt tension.
COMPRESSOR ROTOR AND/OR
BEARING — V-GROOVE TYPE —
4 POLE CLUTCH
« « ♦
2
.
Remove or Disconnect
R em ove the Clutch Plate and Hub assem bly as described
in C O M P R E S SO R C LU TC H PLATE & HUB ASM .
rem oval procedure.
R em ove R otor and Bearing assem bly retaining ring,
using Snap Ring Pliers J 6083 (Fig. 8). M ark the location
of the clutch coil term inals.
If only the Clutch R otor and/or R otor Bearing are to be
replaced, bend the screw head w asher aw ay from the
pulley rim and rem ove the six (6) m ounting screws
before proceeding with Step 3. D iscard the m ounting
screws.
Install R otor and Bearing Puller J 25031 dow n into the
rotor until the Puller arm s engage the recessed edge o f
the rotor hub. Hold the Puller and arm s in place and
tighten the Puller screw against the P uller G uide to
rem ove the Clutch R otor and Bearing assem bly
(Fig. 9), being careful not to drop the P uller Guide.