Spicer Tandem Drive Axle Dual Range & Double Planetary 34,000-45,000 lbs - Manual (Page 74)

Measure and Adjust Input Shaft End
Play
Cont’d.
3.
Install the “U” bracket on bearing cover,
using two bearing cover cap screws (see
illustration). install all other cover cap screws
and torque to 75-85 Ibs.-ft. (101-115 N•m).
4.
Position a dial indicator on the end of the
input shaft (see illustration).
5.
Insert a pry bar through the “U” bracket
with the end of the bar resting on the end of
the input shaft. (see illustration).
6.
Zero the dial indicator and lift up on the
pry bar to move the input shaft axially until it
bottoms out within the bearing cover.
Measure the end play.
7.
If end play is acceptable (see chart), remove
“U” bracket and bearing cover. Seal shim pack
to prevent lube leakage. Reinstall bearing
cover and cap screws. Torque cap screws to
75-85 Ibs.-ft. (101-115 N.m). Continue axle
assembly as necessary.
8.
If end play is incorrect, change shim pack
size as follows:
Add shims to increase end play.
Desired end play . . . . . . . . . . . . . . . . . . . 0.003” to 0.007”
Measured end play (Step 6). . . . . . . . . . . . 0.001” - 0.001”
Add shims to provide desired end play . . . . 0.002” to 0.006”
Remove shims to decrease end play.
Measured endplay (Step 6). . . . .. . . . . . . . . . 0.015” - 0.015”
Desired end play . . . . . . . . . . . . . . . 0.003” to 0.007”
Remove shims to provide desired end play . . . . . . 0.012“ to 0.008”
9.
Recheck end play and adjust as necessary
until end play is within acceptable tolerance.
10.
When end play is correct, remove “U”
bracket and bearing cover. Seal shim pack to
prevent lube leakage. Reinstall bearing cover
and cap screws. Torque cap screws to 75-85
Ibs.-ft. (101-115 N.m). Continue axle assembly
as necessary.
Note: Air lockout unit not shown.
“U” Bracket Installation
Dial Indicator Mounting Position and Checking
Input Shaft End Play.
.
75