TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 643 of 1337
TM 9-2320-260-20
8-10. HYDRAULIC WHEEL CYLINDER REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
APPUCABLE MODELS
EQUIPMENT CONDITION
All
●
Parking brake released (TM 9-2320-260-10).
MATERIALS/PARTS
•
Wheels removed (para. 9-3).
• Front or rear hub and drum removed
Two lockwashers
(para. 9-4 or 9-5).
Two seal washers
Cap and plug set (Appendix C, Item 9)
REFERENCES (TM)
TM 9-2320-260-10
TM 9-2320-260-20P
I
a. Removal
1
CAUTION
When removing hydraulic wheel cylinders, plug all open ports and
hydraulic lines. Failure to do so may cause damage to hydraulic
system.
NOTE
●
If hydraulic fluid comes in contact with brakeshoe linings,
brakeshoes must be replaced.
●
Have drainage container ready to catch brake fluid.
1.
Remove screw (2), hose connector (3), and two seal washers (1) from wheel cylinder (10). Discard seal
washers (1).
2.
Remove return spring (9) from brakeshoes (7).
3. Remove two screws (4) and lockwashers (5) and pull brakeshoes (7) from two yoke links (8). Discard
lockwashers (5).
4. Remove wheel cylinder (10) and cover (12) from backing plate (6).
5. Remove two yoke links (8) from wheel cylinder (10).
6. Remove bleeder screw (11) from wheel cylinder (10), if needed.
1
b. Installation
I
1. Install two yoke links (8) in wheel cylinder (10).
2. Position cover (12) and wheel cylinder (10) on backing plate (6) and install with two new
lockwashers (5) and screws (4).
3. Install brakeshoes (7) on yoke links (8).
4. Install return spring (9) on brakeshoes (7).
5. Install hose connector (3) on wheel cylinder (10) with two new seal washers (1) and screw (2).
8-18
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