Pulley And Bearing Assembly Replacement - GMC 1989 Light Duty Truck Repair Manual

PULLEY AND BEARING
ASSEMBLY REPLACEMENT
Remove or Disconnect (Figures 4 ,9 ,1 0 ,1 1 and 12)
Tools Required:
J 6983 Snap Ring Pliers
J 29886 Driver Handle
J 9398-A Pulley Bearing Remover
J 33020 Pulley Puller
J 33023-A Puller Pilot
1. Clutch plate and hub assem bly (2).
2. Pulley bearing retainer (3) using J 6083 (figure 9).
3. Pulley (5).
• Install J 33023-A to the front head (figure 10).
• Install J 33020 tangs into the inner circle of slots
in the pulley (5) contact surface. Rotate J 33020
clockwise so the tangs will lock into the seg­
ments between the slots (figure 11).
• Hold J 33020 in place and tighten the puller
screw against J 33023-A puller pilot to remove
the pulley (5) (figures 11 and 12).
4. Pulley bearing (4) from the pulley (5) using J 9398-A
and J 29886 (figure 12).
• Remove the forcing screw from J 33020 and
with the puller tangs still in place in the pulley
slots, turn the assembly upside down onto a flat
surface (figure 12).
• When removing the old pulley bearing (5) allow
the staking to remain, then file away the old
staked metal for proper fit when installing a new
bearing (5) in the pulley bore.
Install or Connect (Figures 4 ,1 3 ,1 4 ,1 5 and 16)
Tools Required:
J 21352-A Com pressor Support Block
J 9481-A Pulley Bearing Installer
J 33019 Bearing Staking Tool (with staking pin
and retaining band)
J 33017 Pulley and Bearing Assembly Installer
F igure 9 — R em oving th e P ulley R otor and
B earing R etaining Ring
HR-6 AIR CONDITIONING COMPRESSOR 1B4-5
J 33023-A Puller Pilot
J 8433-1 Puller Bar
J 33026 Com pressor Holding Fixture
J 6083 Snap Ring Pliers
1. Pulley (5) on J 21352-A.
NOTICE: Do n o t su p p o rt the ro to r by restin g the
p u lle y rim on a flat surface d uring b earin g in stal­
lation o r the ro to r face w ill be bent.
Pulley bearing (4) into the hub using J 29886, J 9481-
2.
A and J 21352-A (figure 13).
• J 33019-1 in the pulley bore (figure 14).
• Seat the p u lle y and bearing a ssem bly on
J 21352-A to support to the hub under the stak­
ing pin location.
J-33023-A
A
J-33026
A. P ulley P u lle r J-33020 E ngages in
In n e r C ircle o f P ulley R o to r S lo ts
Figure 10 — Installing the Puller Pilot and
Pulley Rotor Slot Location
Figure 11 — Installing J-33020 in the Pulley
Rotor Slots
F-04427