TM-9-2330-247-14-P
CHASSIS, TRAILER: GENERAL PURPOSE, 3-1/2 TON, 2-WHEEL, M353
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)
MARCH 1992
TM-9-2330-247-14-P - Page 59 of 320
TM 9-2330-247-14&P
Table 4-1. Organizational Preventive Maintenance Checks and Services (PMCS).
S-SEMIANNUAL
A-ANNUAL
ITEM
INTERVAL
NO.
s
PROCEDURES
A
NOTE
Perform operator/crew PMCS prior to or in conjunction with organizational
PMCS if:
a. There is a delay between the daily operation and the organizational PMCS.
b. Regular operator is not assisting/participating.
1
RETRACTABLE SUPPORTS
l a. Inspect retractable supports and mounting for evidence of damage (breaks, cracks,
bent members, or broken welds). Check for freedom of movement and lubricate as re-
quired (Chapter 3, Section l).
l b. Disassemble, clean, inspect and pack wheel bearings (para 4-48).
2
BRAKES
a. Check handbrake for proper operation.
b. Check fluid level in master cylinder. Fluid level should be within ½ in. (13 mm) from filler
opening. Add brake fluid as required (Chapter 3, Section l).
3
AIRBRAKE SYSTEM
a. Couple trailer to towing vehicle (para 2-10). Check for leaks in airbrake system by coat-
ing air lines with soapy water and looking for bubbles. No leaks are permissible.
b. Service air filters (para 4-39).
4
WHEELS AND TIRES
a. Torque lug nuts to 450-500 Ib.-ft. (610-678 N•m) using tightening sequence shown.
TIGHTENING SEQUENCE
FOR LUG NUTS
TA701047
4-5
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