TM-9-2320-272-23-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-3 - Page 586 of 1469
CLEANING AND INSPECTION
1.
Clean surface of steering knuckle, retaining plate, and steering knuckle seal with cleaning cloth. Ensure there
is no dirt or dust inside steering knuckle.
2.
Inspect steering knuckle seal for cracks, tears, and damaged zipper. Replace if cracked, torn, or zipper
is
damaged.
END OF TASK
INSTALLATION
1.
Place steering knuckle boot (Figure 3, Item 6) on axle housing (Figure 3, Item 7), with fabric side of zipper
(Figure 3, Item 1) facing steering knuckle (Figure 3, Item 2).
2.
Close zipper (Figure 3, Item 1) and apply large amount of adhesive to locks and fabric of zipper. Allow adhesive
to sit overnight.
3.
Force inner lip of steering knuckle boot (Figure 3, Item 6) into groove on axle housing (Figure 3, Item 7). Ensure
steering knuckle boot is aligned to holes in steering knuckle (Figure 3, Item 2).
4.
Position inner retaining clamp (Figure 3, Item 5) to lip of steering knuckle boot (Figure 3, Item 6) and install
clamp screw (Figure
3, Item 4) and spacer (Figure 3, Item 3).
5.
Lace zipper (Figure 3, Item 1) locks with fine wire near edge of steering knuckle boot (Figure 3, Item 7) and
twist together.
6.
Cut off excess zipper (Figure 3, Item 1) and apply adhesive to exposed zipper and fabric. Allow adhesive to
sit overnight.
7
6
5
4
3
2
1
M9531DAA
Figure 3.
Steering Knuckle Boot Installation.
TM 9-2320-272-23-3
0409
0409-3
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