TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 597 of 1207
TM 9-2320-361-20
8-9. HYDRAULIC WHEEL CYLINDER REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
EQUIPMENT CONDITION
All
Parking brake set (TM 9-2320-361-10).
MATERIALS/PARTS
Remove front or rear hubs and drums (para. 9-3
or 9-4).
Two lockwashers
Two washers
Cap and plug set (Appendix C, Item 8)
REFERENCES (TM)
LO 9-2320-209-12-1
TM 9-2320-361-10
TM 9-2320-361-20P
CAUTION
Cap or plug all openings immediately stir disconnecting brake
lines and hoses to prevent contamination. Failure to do so may
result in internal parts damage.
NOTE
Front and rear wheel cylinders are replaced the same way. This
procedure covers the left front.
1. Remove brakeshoe return spring (9) from two brakeshoes (7) and (13).
NOTE
Have drainage container ready to catch brake fluid.
2. Remove brake line screw (2), two washers (1), and hose connector (3) from wheel cylinder (10).
3. Remove two screws (4) and lockwashers (5) from backing plate (6) and wheel cylinder (10). Discard
lockwashers (5).
4. Slide brakeshoes (7) and (13) off slotted pushrods (8) and remove wheel cylinder (10) and dust-
shield (12) from backing plate (6).
5. Remove, clean, and inspect bleeder screw (11) from wheel cylinder (10). If damaged, replace.
b. Installation
1. Install bleeder screw (11) into wheel cylinder (10). Tighten bleeder screw (11) 120-168 lb-in.
(14-19 NŽm).
2. Install dustshield (12) and wheel cylinder (10) on backing plate (6) with slotted pushrods (8) placed
in brakeshoes (7) and (13) slots.
3. Install two new lockwashers (5) and screws (4) into wheel cylinder (10) and backing plate (6).
Tighten screws (4) 27-35 lb-ft (37-48 NŽm).
4. Install hose connector (3) to wheel cylinder (10) with two washers (1) and brake line screw (2).
Tighten screw (2) 65 lb-ft (88 NŽm).
5. Install brakeshoe return spring (9) on two brakeshoes (7) and (13).
8-24
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