Table 4-1. Unit Preventive
Maintenance Checks and Services
S - Semiannually
A - Annually
Q - Quarterly
Item to Be
a. Check for dents, cracks, and general damage that would impair
b. Check for missing or loose nuts, screws, and washers, tighten as
a. Check for cracks, leaks, missing parts, and dents in fuel tank.
b. Check for cracks, leaks, and dents in fuel tubes, fuel fittings, joints,
c. Use hooked wire to pull fuel tube from tank and check fuel filter,
filter should be clean.
a. Check air lines for kinks, cracks, and dents.
Air Lines and
b. Check hose joints and air guide for cracks or leaks in gasket at air
a. Remove air cleaner cover (para 4-18) and check for cracks and
dents in the air cleaner element case.
b. Check for deteriorated rubber, cracks or holes.
NBC-contaminated air filters must be handled and disposed of only by
authorized and trained personnel. The unit commander or senior
officer in charge of maintenance personnel must ensure that
prescribed protective clothing (FM 3-4) is used, and prescribed safety
measures and decontamination procedures (FM 3-5) are followed.
The local unit SOP is responsible for final disposal of contaminated
air filters. Failure to comply may cause severe injury or death to
c. Check air cleaner element to make sure it is clean and in good
condition. Clean per para 2-12.