TM-9-2320-361-34

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

MAY 1992
TM-9-2320-361-34

  TM-9-2320-361-34 - Page 561 of 764

TM 9-2320-361-34
16-3. REAR WINCH (M756A2) REPAIR (Contd)
d. Cleaning and Inspection
1.
2.
3.
4.
5.
6.
7.
8.
9.
For general cleaning instructions, refer to para. 2-8.
For general inspection instructions, refer to para. 2-9.
Inspect drum thrust ring (1) and end frame thrust ring (2) for wear. Refer to table 16-2, M756A2
Rear Winch Wear Limits, for measurements. Replace if worn past limit.
Inspect five drum shaft bushings (3) for wear. Refer to table 16-2, M756A2 Rear Winch Wear Limits,
for measurements. Replace if worn past limit.
Inspect drum sliding clutch (4) for wear. Refer to table 16-2, M756A2 Rear Winch Wear Limits, for
measurements. Replace if worn past limit.
Inspect poppet spring (5), drag brake spring (6), and automatic brake spring (7) for wear. Refer to
table 16-2, M756A2 Rear Winch Wear Limits, for measurements. Replace if worn past limit.
Inspect end frame sleeve (8) for wear. Refer to table 16-2, M756A2 Rear Winch Wear Limits, for
measurements. Replace if worn past limit.
Inspect brakeband (9) and drag brake (10) for wear. Refer to table 16-2, M756A2 Rear Winch Wear
Limits, for measurements. Replace if worn past limit.
Inspect and clean bearing (11) (TM 9-214). Replace bearing if worn or damaged.
Table 16-2. M756A2 Rear Winch Wear Limits.
ITEM
WEAR LIMITS/TOLERANCES
NO.
lTEM/POINT OF MEASUREMENT
STANDARD
METRIC
1
Drum thrust ring
Inner diameter
2.13-2.14 in.
5.41-5.44 cm
Thickness
0.48-0.49 in.
12.12-12.45 mm
2
End frame thrust ring
Inner diameter
2.13-2.14 in.
5.41-5.43 cm
Thickness
0.49-0.51 in.
12.45-12.95 mm
3
Drum shaft bushings:
Steel, inner diameter
2.11-2.13 in.
5.36-5.41 cm
Copper, inner diameter
2.13-2.131 in.
5.41-5.413 cm
4
Drum sliding clutch:
Inner diameter
2.133-2.135 in.
5.418-5.423 cm
Key engagement slots
0.504-0.508 in.
12.802-12.903 mm
5
Poppet spring (free length)
1.91 in.
4.85 cm
6
Drag brake spring:
Free length
2 in.
5.08 cm
Compressed to 1.0625 in. (2.699 cm)
52 lb-ft
70.51 N.m
7
Automatic brake spring:
Free length
1.5 in.
3.81 cm
Compressed to 1 in. (2.54 cm)
48 lb-ft
65.09 N.m
8
End frame sleeve (inner diameter)
2.375-2.376 in.
6.033-6.035 cm
9
Brakeband (thickness)
0.1725-0.1875 in.
4.382-4.762 mm
10
Drag brake (thickness)
0.235-0.25 in.
5.969-6.35 mm
16-18


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