Hummer H1 Service Manual page 571

9-34 Axles, Suspension, and Frame
10. Install two bearing caps and four bolts in housing and
finger tighten bolts.
11. Install the dial indicator on the arbor post. Push the dial
indicator downward until the needle rotates approximately
one full turn clockwise. Tighten the dial indicator in this
position and recheck.
DIAL
INDICATOR
J–8001
BEARING
CAP
PINION
SETTING
KIT J–39524
Figure 9-85: Positioning J–39524 Arbor and Discs
In Housing
12. Rotate the gauge shaft slowly back and forth until the dial
indicator reads the greatest deflection. At the point of
greatest deflection, set the dial indicator to zero. Repeat
the rocking action of the gauge shaft to verify the gauge
setting (Figure 9-86).
INDICATOR
PLUNGER
Figure 9-86: Gauge Setting
_________________________________________
ARBOR
POST
DISC
ARBOR
DIAL
INDICATOR
GAUGE
BLOCK
13. After the zero setting is obtained, rotate the gauge shaft
until the dial indicator plunger does not touch the gauge
block.
14. Record the dial indicator reading. Example: If the pointer
moved counterclockwise and stops between 0 and 11, add
100 inches to measurement for shim thickness. If the
pointer moves counterclockwise and stops between 84 and
99, correct shim thickness is indicated.
15. This reading indicates the shim thickness required for a
pinion etched with a zero (0) on the pinion head. If the
pinion being installed has a plus (+) or minus (-) etching,
then an adjustment of the shim thickness is required.
Example: If a pinion is etched +3, then 0.003 inches less
shim thickness is required. Subtract 0.003 inches from the
indicator reading. If a pinion is etched -3, then 0.003
inches more shim thickness is required. Add 0.003 inches
to the indicator reading.
16. Remove dial indicator from arbor (Figure 9-85).
17. Remove four bolts, two bearing caps, discs, and arbor
from housing.
18. Remove nut, pilot washer, front pinion bearing, and stud
assembly from housing (Figure 9-87).
REAR PINION
GAUGE PILOT
BLOCK WASHER
STUD
Figure 9-87: Pinion Front Bearing and Depth Tool
19. Remove gauge block, pilot washer, rear pinion bearing,
rear pinion bearing cup, and gauge block from stud.
20. Note pinion depth variance marked on pinion gear. If
number is preceded by a plus (+) sign, add that amount in
thousands to standard setting of 2.547 in. (6.46 cm). If
number is preceded by minus (-) sign, subtract that amount
in thousands from standard setting of 2.547 in. (6.46 cm).
The result of this addition or subtraction is desired pinion
depth. Record for reference (Figure 9-88).
RING PINION
BEARING
BEARING CUP
GAUGE
BLOCK
PILOT
WASHER
FRONT PINION
BEARING
Removal
®