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TM 5-2420-222-34
9-3.
REAR AXLE HOUSING, SHAFTS, SEALS, BEARINGS, AND PLANETARY PINION CARRIER MAINTENANCE
(Con’t).
CAUTION
•
Do not torque screw to more than 55 lb.-ft. (75 N•m) during bearing preload
adjustment or damage to bearings will result.
•
Axle shaft must be turned while screw is being tightened, or damage to bearings
will result.
19. Install, but do not tighten screw (30) in washer (31)
and axle shaft (15).
NOTE
For loader backhoes with serial numbers
235786-235999, use 9/16 In. -12 UNC x 5 in.
screws. For loader backhoes with serial
numbers 319995-342573, use 3/4 in. -10
UNC X 5 in. screws.
20. Install two screws (45) opposite each other in axle
housing (1) flange so that 2 in. (5.1 cm) of each
screw extends out of flange.
21. While assistant turns axle shaft (15) clockwise, use
pinch bar and two screws (45) to tighten screw (30).
Torque screw to 55 lb.-ft. (75 N•m).
22. While assistant holds axle shaft (15) from turning, remove screw (30), washer (31), spacer (33), and ½ in. (13 mm)
piece of solid tin alloy solder.
23. Using micrometer caliper set, measure thickness across flats pressed in X in. (13 mm) piece of solid tin alloy solder.
Subtract 0.005 in. (0.127 mm) from thickness.
24. Add or remove shims (34) from shim pack until thickness of shims is the same as thickness in step 23.
25. Install shims (34), spacer (33), and washer (31) on axle shaft (15) and planetary pinion carrier (32).
CAUTION
Axle shaft must be turned while screw is being tightened, or damage to bearings
will result.
26. Install, but do not tighten screw (30) in washer (31) and axle shaft (15).
27. While assistant turns axle shaft (15) clockwise, use pinch bar and two screws (45) to tighten screw (30). Torque
screw to 180-240 lb.-ft. (244-325 N•m).
28. Using torque wrench, turn axle shaft (15) by screw (30) three full turns. While turning axle shaft, check bearing
preload on torque wrench. Preload should be 8-12 lb.-ft. (11-16 N•m).
NOTE
If bearing preload was within specification In step 28, skip steps 29 and 30.
29. While assistant holds axle shaft (15) from turning, remove screw (30) and washer (31).
TA701448
9-22
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