Hummer H1 Service Manual page 750

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2. Align the new bearing squarely with the hub bore, and
using puller and bearing installer with driver handle, drive
the bearing pulley into the hub. The installer will apply
force to the outer race of the bearing if used as shown
(Figure 11-34).
3. Place bearing staking guide and bearing staking pin in the
hub bore. Shift the rotor and bearing assembly on the
support block to give full support of the hub under the
staking pin location. A heavy-duty rubber band may be
used to hold the stake pin in the guide, and the stake pin
should be properly positioned in the guide after each
impact on the pin (Figure 11-35).
CAUTION: Noisy bearing operation and reduced bearing life
may result if outer bearing race is deformed while staking. The
stake metal should not contact the outer race of the bearing.
Stake three places, 120 degrees apart (Figure 11-36).
BEARING STAKING
GUIDE
RUBBER BAND
BEARING STAKING PIN
Figure 11-35: Bearing Staking Guide and Pin
4. Using care to prevent personal injury, strike the staking
pin with a hammer until a metal stake, similar to the
original, is formed down to, but not touching, the bearing.
Figure 11-36: Stake Locations
5. With the compressor mounted to the holding fixture,
position the rotor and bearing assembly on the front head
(Figure 11-37).
05745159
Heating/Ventilation/Air Conditioning (HVAC)
CROSSBAR
6.
7.
8.
9.
10. Reinstall clutch plate and hub assembly.
STAKE THREE
LOCATIONS
120 DEGREES
APART
SCREW
ROTOR
PULLEY ROTOR AND
HOLDING
BEARING INSTALLER
FIXTURE
Figure 11-37: Pulley Rotor and Bearing
Position the pulley rotor and bearing installer, and puller
pilot directly over the inner race of the bearing.
Position puller crossbar on the puller pilot, and assemble
two through-bolts and washers through the puller bar slots,
and thread them into the holding fixture. The thread of the
through-bolts should engage the full thickness of the
holding fixture.
Tighten the center screw in the puller crossbar to force the
pulley rotor and bearing assembly onto the compressor.
Should the pulley rotor and bearing installer slip off direct
in-line contact with the inner race of the bearing, loosen
the center forcing screw and realign the installer and pilot
so that the installer will properly clear the compressor.
Using snapring pliers, install retaining ring (Figure 11-38).
PULLEY ROTOR
RETAINING
RING
Figure 11-38: Retaining Ring
11-31
BOLT
PULLER PILOT