Pulley And Bearing Assembly Replacement - GMC 1990 Light 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 assembly (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.
-► 4*
Install or Connect (Figures
Tools Required:
J 21352-A Compressor 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
Figure 9 — Removing the Pulley Rotor and
Bearing Retaining Ring
HR-6 AIR CONDITIONING COMPRESSOR 1B4-5
4 ,1 3 ,1 4 ,1 5 and 1 6)
J 33023-A Puller Pilot
J 8433-1 Puller Bar
J 33026 Compressor Holding Fixture
J 6083 Snap Ring Pliers
1
. Pulley (5) on J 21352-A.
NOTICE: Do not support the rotor by resting the
pulley rim on a flat surface during bearing instal­
lation or the rotor face will be bent.
2. Pulley bearing (4) into the hub using J 29886, J 9481-
A and J 21352-A (figure 13).
• J 33019-1 in the pulley bore (figure 14).
• Seat the pulley and bearing assembly on
J 21352-A to support to the hub under the stak­
ing pin location.
Figure 10 — Installing the Puller Pilot and
Pulley Rotor Slot Location
Figure 11 — Installing J-33020 in the Pulley
Rotor Slots
F-04461