TM 9-2320-260-34-2
16-11. REAR WINCH AUTOMATIC BRAKE MAINTENANCE
THIS TASK COVERS:
c. Installation
a. Removal
b. Cleaning and Inspection
INITIAL SETUP
MATERIALS/PARTS (Contd)
APPLICABLE MODELS
Six screw-assembled lockwashers
M816
(Appendix D, Item 382)
TOOLS
Woodruff key (Appendix D, Item 557)
General mechanic's tool kit
O-ring (Appendix D, Item 293)
(Appendix B, Item 1)
REFERENCES (TM]
Mechanical puller kit (Appendix B, Item 14)
TM 9-2320-260-20
Outside micrometer (Appendix B, Item 8)
TM 9-2320-260-34P-2
MATERIALS/PARTS
EQUIPMENT CONDITION
Lockwasher (Appendix D, Item 218)
Rear winch removed (TM 9-2320-260-20).
Gasket (Appendix D, Item 97)
1. Remove six screw-assembled lockwashers (15), cover (14), and gasket (13) from housing (6). Discard
screw-assembled lockwashers (15) and gasket (13).
2. Remove screw (1), washer (2), O-ring (3), and spring (12) from brake band (11) and housing (6).
Discard O-ring (3).
3. Remove brake band (11) from brakedrum (7).
4. Remove screw (10), lockwasher (9), and washer (8) from shaft (5). Discard lockwasher (9).
5. Using puller, remove brakedrum (7) from shaft (5).
6. Remove woodruff key (4) from shaft (5). Discard woodruff key (4).
b. Cleaning and Inspection
1. For general cleaning instructions, refer to para. 2-8.
2. For general inspection instructions, refer to para. 2-9.
3. Inspect cover (14) for breaks and cracks. Replace cover (14) if broken or cracked.
if damaged or worn.
5. Inspect spring (12) for broken coils and distortion. Using spring tester, compress spring (12) and
check for wear. Refer to table 16-11, Automatic Brake Wear Limits, for measurements. Replace
spring (12) if damaged or worn.
Table 16-11. Automatic Brake Wear Limits.
WEAR LIMITS/TOLERANCES
ITEM
lTEM/POINT OF MEASUREMENT
NO.
INCHES
MILLIMETERS
7
5.497
139.62
Brakedrum - outer diameter minimum
0.070
Brake band - minimum thickness to rivet head
1.78
11
12
Spring
,
16-74
