Hummer H1 Service Manual page 533

8-42 Steering System
Assembly
(Figures 8-72 through 8-83)
NOTE: For general assembly instructions refer to Sec-
tion 2.
1. Install O-ring seal in bottom groove of pump body
(Figure 8-79).
2. Install driveshaft seal in pump body.
3. Install rotor on thrust plate.
4. Insert splined end of driveshaft through thrust plate and
rotor.
5. Install retaining ring on driveshaft.
6. Install dowel pins in pump body.
7. Install driveshaft and rotor assembly in pump body.
PRESSURE PLATE
PUMP RING
RETAINING RING
4-1-00
__________________________________________________________
VANES
ROTOR
THRUST PLATE
DOWEL PIN
Figure 8-79: Pressure Plate and Rotor Installation
CAUTION: To avoid damage to equipment, install pump
ring with arrow pointing up.
8. Align dowel pins and small holes In pump ring.
9. Install pump ring in pump body.
CAUTION: To avoid damage to equipment, install vanes
in rotor with rounded edges facing outward.
10. Install ten vanes in rotor.
CAUTION: To avoid damage to equipment, install pres-
sure plate with spring groove facing upward.
11. Install pressure plate on pump ring ensuring center
notches in pressure plate align with dowel pins.
DRIVESHAFT
DOWEL PIN
O-RING SEAL
®
PUMP BODY
DRIVESHAFT SEAL