TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 473 of 863
TM 9-2320-260-34-2
16-11. REAR WINCH AUTOMATIC BRAKE MAINTENANCE
THIS TASK COVERS:
a. Removal
c. Installation
b. Cleaning and Inspection
INITIAL SETUP
APPLICABLE MODELS
M816
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Mechanical puller kit (Appendix B, Item 14)
Outside micrometer (Appendix B, Item 8)
MATERIALS/PARTS
Lockwasher (Appendix D, Item 218)
Gasket (Appendix D, Item 97)
MATERIALS/PARTS (Contd)
Six screw-assembled lockwashers
(Appendix D, Item 382)
Woodruff key (Appendix D, Item 557)
O-ring (Appendix D, Item 293)
REFERENCES (TM]
TM 9-2320-260-20
TM 9-2320-260-34P-2
EQUIPMENT CONDITION
Rear
winch removed (TM 9-2320-260-20).
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.
4. Inspect brakedrum (7) and brake band (11)
for
breaks, cracks, scoring, and wear. Refer to table
16-11, Automatic Brake Wear Limits, for measurements. Replace brakedrum (7) or brake band (11)
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.
ITEM
WEAR LIMITS/TOLERANCES
NO.
lTEM/POINT OF MEASUREMENT
INCHES
MILLIMETERS
7
Brakedrum - outer diameter – minimum
5.497
139.62
11
Brake band - minimum thickness to rivet head
0.070
1.78
12
Spring
,
16-74
Back to Top
