TM 9-2330-388-14
Table 4-1. Unit Preventive Maintenance Checks and Services (Cont'd.)
Q - Quarterly
S - Semiannually
A - Annually
B - Biennially
H - Hours
INTERVAL
ITEM TO BE INSPECTED
ITEM
PROCEDURE: Check for and have repaired,
NO
Q
S
A
B
H
filled, adjusted as needed
7
Landing Gear
Check condition and operation of landing gear. Inspect for damage or wear. Replace
damaged parts.
8
Batteries and Cables
a. Check electrolyte specific gravity.
b. Check for damaged battery cables and terminals. Replace cables or battery if
damaged.
9
Fire Extinguishers
WARNING
Handle charged fire extinguisher cylinders with care. DO NOT jar or
expose to temperature above 140 F (60 C).
NOTE
Refer to TB 5-4200-200-10 for guidance on fire extinguisher
servicing.
a. Remove fire extinguisher from mounting bracket and weigh. Fill out maintenance
request (DA Form 2407) or exchange request (DA Form 2407) for
cylinders requiring recharging.
b. Check mounting bracket for secure attachment to semitrailer. Check that lockup
handle moves freely and is not damaged.
c.
Check that plastic indicator on top of fire extinguisher is intact.
NOTE
Some fire extinguishers have a safety wire-lead or plastic seal
attached to pull pin.
d. Check that safety wire-lead or plastic seal is not broken or missing.
e. Check that tube is not kinked and nozzle is free of obstructions.
4-6