Hummer H1 Service Manual page 749

11-30 Heating/Ventilation/Air Conditioning (HVAC)
COMPRESSOR CLUTCH ROTOR AND/OR
BEARING REPLACEMENT
Removal
1. Remove the clutch plate and hub assembly.
2. Using snapring pliers, remove retaining ring (Figure 11-30).
PULLEY ROTOR
Figure 11-30: Retaining Ring
3. Install pulley rotor and bearing puller guide on the
compressor, and install pulley rotor and bearing puller
down into the inner circle of slots in the rotor. Turn the
puller clockwise in the slots in the rotor (Figures 11-31
and 11-32).
PULLEY ROTOR AND
BEARING PULLER GUIDE
Figure 11-31: Pulley Rotor and Bearing
Puller Guide
PULLEY ROTOR
AND BEARING PULLER
Figure 11-32: Pulley Rotor and Bearing Puller
4. Hold the puller in place and tighten the puller screw
against the puller guide to remove the pulley rotor and
bearing assembly.
5.
RETAINING
RING
BEARING
REMOVER
6.
CAUTION: It is not necessary to remove the staking in front of
the bearing to remove the bearing, however, it will be neces-
sary to file away the old stake metal for proper clearance for
the new bearing to be installed into the rotor bore, or the bear-
ing may be damaged.
Installation
1.
PULLER
CAUTION: Do not support the rotor by resting the pulley rim
on a flat surface during the bearing installation. The rotor face
will bend.
______________________
To prevent damage to the pulley during bearing removal,
the rotor hub must be properly supported. Remove the
forcing screw from puller, and with the puller tangs still
engaged in the rotor slots, invert the assembly onto a solid
flat surface or blocks (Figure 11-33).
PULLEY ROTOR
Figure 11-33: Bearing Remover
Drive the bearing out of the rotor hub with bearing
remover and driver handle.
Place the pulley rotor on support block to fully support the
rotor hub during bearing installation (Figure 11-33).
BEARING
INSTALLER
PULLEY
ROTOR
Figure 11-34: Bearing Installer
DRIVER HANDLE
DRIVER
HANDLE
®