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TM10-3930-660-34
12-3 STEERING KNUCKLE - REPLACE/ADJUST (Contd
b. Install upper cap assembly
c. Apply Loctite 271 to threads of
capscrews (1) Tighten capscrews
(1) to 85-115 lb ft
6. REPEAT STEPS 1-5 FOR OTHER STEERING
KNUCKLE, IF NECESSARY
7. INSTALL PLANETARY WHEEL ENDS,
PARAS 8-6, 9-6
8. INSTALL TIE ROD,
PARA 12-6
9 ADJUST TIE ROD,
TM10-3930-660-20
ADJUSTMENT
1 MEASURE VERTICAL END PLAY
a. If wheels are on ground: Use a
feeler gauge to measure gap
between upper steering knuckle
cap shoulder and top machined
surface of end of the axle
housing
b. If wheels are removed (axle
supported by blocks): Use a
hydraulic jack or pry bar to
push steering knuckle up until
bottom of steering knuckle is
tight against bottom of axle
Measure gap as in STEP a
c Vertical end play may also be
measured by checking maximum
vertical movement of knuckle with
a dial indicator
d Record measurement
2. VERTICAL END PLAY LIMITS:
a If end play is 0 013 inch or
less, no adjustment is necessary
b If vertical end play exceeds
0 013 inch, go to STEP 3
3 ADJUST VERTICAL END PLAY
a. Remove upper and lower steering
knuckle caps Measure total
current shim pack thickness
(upper and lower shim packs
combined)
b. Subtract actual end play (value
obtained in STEP 1) from total
shim pack thickness obtained in
STEP 2a Divide this result by
two
c. Make new lower shim thickness the
same value as calculated in STEP
2b If this thickness cannot be
met exactly, choose nearest
thicker shim pack
d. Make new upper shim thickness the
as value obtained in STEP 2b,
plus 0 005 inch If this result
cannot be met exactly, choose
nearest thicker shim pack
12-6
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