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 - Page 473 of 764
TM 9-2320-361-34
15-41. POWER LEVELER MAINTENANCE (Contd)
c. Cleaning and Inspection
1. Clean and inspect bearings (7) and
(16) and
housing (8) (TM 9-214). Replace if damaged.
2. Inspect all gears
and sprockets for small chips, burrs, and scratches. Raised metal can be removed
with a fine mill file.
3. Inspect all parts for cracks, breaks, and other damage. Replace if damaged.
4. Inspect sprocket (6), worm drive gear (28), worm drive pinion (10), shaft (19), bearing in housing
cap (25), and bearings (31) and (32) in housing (8) for wear and other damage. Refer to table 15-7,
Power Leveler Wear-Limits, for measurements. Replace if worn or damaged.
Table 15-7. Power Leveler Wear Limits.
ITEM
WEAR LIMITS/TOLERANCES
NO.
lTEM/POINT OF MEASUREMENT
INCHES
MILLIMETERS
6
Sprocket:
Inside diameter
1.751-1.753
44.48-44.53
Outside diameter
2.873-2.874
72.97-73.00
10
Worm drive pinion (diameter)
1.376-1.377
34.95-34.98
19
Shaft:
Diameter “A”
1.249-1.250
31.72-31.75
Diameter “B”
1.378-1.379
35.00-35.03
25
Bearing housing cap (inside diameter)
1.379-1.381
35.03-35.08
28
Worm drive gear (outside diameter)
2.247-2.249
57.07-57.12
31
Bearing (inside diameter)
2.875-2.876
73.03-73.05
32
Bearing (inside diameter)
2.250-2.251
57.15-57.18
d. Assembly
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
15-162
NOT E
Install all shims to measured distance.
Pack bearings (7) and (16) with GAA grease.
Install new shim(s) (17), bearing (16), nut (15), and new cotter pin (14) in housing (8).
Install worm drive gear (28), clutch (29), yoke (30), and shaft (1) in housing (8).
Install shaft (19) in housing (8).
Install bearing (7), sprocket (6), new shim(s) (5), bearing retainer (4), nut (2), and new cotter pin (3)
on shaft (19).
Install spacer (9), new woodruff key (18), takeoff pinion (10), washer (11), nut (12), and new cotter
pin (13) on shaft (19).
Pack housing (8) with GAA grease.
Position worm drive pinion
(27)
in housing cap (25).
NOTE
Ensure teeth of worm drive pinion aline with teeth of worm drive gear.
Install new woodruff key (26) and sprocket (24) on worm drive pinion (27). Tighten setscrew (22) and
install new safety wire (23).
Install housing cap (25) on housing (8) with two new lockwashers (20) and screws (21).
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