Specifications

TM9-2330-384-14&P
Table. UnitPreventiveMaintenanceChecksandServices(PMCS)Con't).
M-Monthly S-Serniannually A-Annually
ITEM IN ERVAL
ITEMTOBE
NO.
M S A
INSPECTED
PROCEDURES
5 ROADSIDE OF
SEMITRAILER
(Con't)
NOTE
If semitrailer is new, wheel nuttorque should be checked
at first100, 500, and 1,000miles.Thereafter,check
shouldbe madeMONTHLY.
j.
Check torque of wheel nuts at each wheel. Wheel nuts should
be torqued to 250 lb.-ft. (339 N-m).
6 REAR OF
SEMITRAILER
Inspect grounding stud at roadside of bumper for damage. Itmust
be unpainted, securely mounted, and clean. If grounding stud is
damaged, replace (see paragraph 4-64).
7 UNDER
SEMITRAILER
a. Inspect brake linkage for damage or looseness of mounting
hardware. Tighten loose mounting hardware or replace
components as required (see paragraph 4-36, 4-37, and 4-40).
b. Inspect brake shoe linings for wear. If linings measure 1/4 in.
(6.35 mm) or less at their thinnest point, replace brake shoes (see
paragraph 4-35).
c. Adjust brakes and length of travel of brake chamber pushrod
(see paragraph 4-34).
d. With brakes adjusted, check for proper wheel bearing
adjustment. Adjust wheel bearings as required (see paragraph 4-
47).
e. Inspect radius rods and equalizer for cracks, breaks, or
looseness of mounting hardware, Tighten loose mounting
hardware or replace components as required (see paragraphs 4-
55 and 4-57).
f. Check springs for a cracked leaf and for looseness of rebound
bolts. Tighten rebound bolts if loose. If a cracked leaf is found,
replace springs on both roadside and curbside (see paragraph 4-
56).
g. Check U-bolts for damage. Torque U-bolt nuts in a diagonal
sequence to 360 lb.-ft. (488 N-m).
Change1 4-9