TM-9-2320-283-34-2
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, MQ15A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
DECEMBER 1983
TM-9-2320-283-34-2 - Page 92 of 570
D. ADJUSTING
TM 9-2320-283-34-2
REAR TANDEM AXLES.
3-70. FORWARD-REAR AXLE CARRIER REPAIR (Continued).
LOCATION/ITEM
ACTION
REMARKS
Assembled cage
For trial build-up of pinion
(21) (continued).
bearing preload test, adjust
as follows (continued):
b. Apply hydraulic press
load of 13.5 to 15.5 tons
to assembled item (21).
c. Wrap soft wire around
assembled item (21) and
attach a spring scale as
shown.
d. Pull spring scale. Pre-
If necessary, adjust
load is correct when
pinion bearing preload
torque required to rotate by changing item (28).
assembled item (21) is
A thicker item (28) will
is from 10-20 lb-in.
.
decrease preload. A
thinner item (28) will
increase preload.
CAUTION
After adjusting pinion bearing preload
without drive pinion a final preload
test must be made.
Proceed to step 52
for adjustments with
drive pinion
installed in bearing cage assembly.
NOTE
Drive pinion and pinion pilot bearing
must be installed in bearing cage
assembly for final bearing preload
test.
3-648
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