Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont'd)
ITEM
NO.
INTERVAL
ITEM TO BE
INSPECTED
PROCEDURES
TM 9-2320-280-20-1
Change 1
2-21
NOT FULLY MISSION
CAPABLE IF:
e. Check for loose, missing, or
e. Any broken studs, or
broken wheel studs and nuts.
loose or missing wheel
nuts.
(1) Release air pressure from tire
(para. 8-4 or 8-5).
(2) Wheel configurations:
(a) 12-bolt configuration –
Tighten locknuts to 85 lb-ft (115 N•m)
in sequence shown; repeat torque
sequence at 125 lb-ft (170 N•m).
(3) Inflate tire to recommended tire
pressure (TM 9-2320-280-10).
CAUTION
Prior to checking torque, the tire
assembly must be deflated.
CAUTION
Tighten locknuts gradually to avoid
bent and broken studs, or damage to
wheel components will result.
19
Semi-
Tires
Annual
(Cont’d)
8-BOLT TIGHTENING SEQUENCE
(b) 8-bolt configuration –
Tighten locknuts to 55 lb-ft (75 N•m)
in sequence shown; repeat torque
sequence at 65 lb-ft (88 N•m).
12-BOLT TIGHTENING SEQUENCE
