Hummer H1 Service Manual page 518

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Valve Body-Stub Shaft-Wormshaft Removal
and Disassembly
1. Grasp splined end of stub shaft and carefully rotate valve
body/stub shaft assembly out of gear housing.
2. If wormshaft remained engaged in stub shaft cap,
disengage and remove wormshaft at this time.
3. Remove O-ring from cap end of stub shaft.
4. Lightly tap splined end of stub shaft on wood block to
disengage cap from valve body.
5. Grasp stub shaft cap and pull it upward to expose shaft pin
(Figure 8-43). Then disengage shaft pin from valve body
and separate two components.
Figure 8-43: Stub Shaft Remova l
6. Remove spool from valve body with a rotating motion
(Figure 8-44).
05745159
VALVE
BODY
NOTCH IN
STUB SHAFT
7. Remove O-ring from valve spool.
CAP
8. Remove seals and O-rings from valve body (Figure 8-45).
VALVE
BODY
SHAFT
STUB
PIN
SHAFT
STUB
SHAFT
O-RING
Figure 8-45: Stub Shaft/Valve Body Components
Steering System
VALVE SPOOL
Figure 8-44: Valve Spool Removal
O-RINGS
SPOOL
O-RING
VALVE
BODY
VALVE
SPOOL
8-27
O-RING
ROTATE
SPOOL
TO REMOVE
SEAL RINGS
4-1-00