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TM 10-3930-671-24
Critical Fastener Torque Specifications
Truck Chassis - General
Tightening Torque, Dry
lb ft
(N·m)
Drive wheel lug nuts/bolts
470-530
(637-718)
Steer wheel lug nuts/bolts (pneumatic tire only)
265-338
(359-458)
Counterweight mounting bolts (all)
240-265
(320-360)
Overhead guard mounting bolts
50-55
(65-75)
Load backrest extension mounting bolts
177-199
(240-270)
Drive axle to frame mounting bolts
400-440
(542-596)
Steer axle mounting bolts
420-480
(570-650)
Upright trunnion to upright rain mounting bolts
273-302
(370-410)
Upright trunnion cap bolts
55-59
(75-80)
Upright cylinder retaining bolts
53-59
(72-80)
Tilt cylinder yoke clamp bolts
125-140
(170-190)
Steering handwheel retaining nut
35-40
(47-54)
Steering column mtg bolts (to bracket)
6-7
(8-10)
(bracket to cowl)
15-18
(20-25)
Main hydraulic control valve mtg bolts
30-33
(41-45)
Control lever mtg bolts
6-7
(8-10)
Alternator adjusting bracket bolt
15-18
(20-25)
Main hydraulic pump mounting bolts
53-59
(72-80)
NOTE
When checking tightness of major fasteners on new trucks, the values may be less than the recommended specification
due to metal deformation and fastener stretch. This is a normal occurrence and does not indicate that the fasteners were
not correctly tightened during assembly. Tighten to recommended specifications.
F-26
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