and maintained on this equipment are speci-
fied in TM 38-750.
nance
a. Preventive maintenance is the system-
3-11. Monthly Maintenance
atic care, inspection, and servicing of the equip-
Perform the maintenance functions indicat-
ment to maintain it in serviceable condition,
ed in the monthly preventive maintenance
prevent breakdowns, and assure maximum op-
checks and services chart (para 3-12) once each
erational capability. Preventive maintenance is
month. A month is defined as approximately
the responsibility of all levels concerned with
30 calendar days of 8-hour-per-day operation.
the equipment and includes the inspection,
If the equipment is operated 16 hours per day,
testing, and repair of the equipment parts that
the monthly preventive maintenance checks
tests indicate would probably fail before the
and services should be performed at M-day in-
next scheduled periodic service. Preventive
tervals. Adjustment of the maintenance inter-
maintenance checks and services of the equip-
vals must be made to compensate for any un-
ment at the organizational level are made at
usual operating conditions. Equipment maint-
monthly intervals unless otherwise specified
ained in a standby (ready for immediate op-
by the commanding officer. The preventive
eration) condition must have monthly pre-
maintenance checks and services should be
ventive maintenance checks and services per-
scheduled concurrently with the periodic serv-
formed on it. Equipment in limited storage
ices schedule of the associated equipment in
does not require monthly preventive mainte-
the system.
nance, but does require services before opera-
b. Maintenance forms and records to be used
tion.
Sequence
Item
Procedure
References
No.
Case interior . . . . . . . . . . . .
Warning: Prolonged breathing of cleaning
1
compound is dangerous; make certain that ade-
quate ventilation is provided. Cleaning com-
pound is flammable; do not use near a flame.
Avoid contact with the skin; wash off any that
spills on your hands.
a. Inspect for cleanliness.
a. Fig. 1-1, 1-2,
Clean as required.
and 1-3; and
b. Inspect interior surfaces for rust or cor-
b.. Fig. 1-1, 1-2,
rosion,
Remove rust and corrosion, and
and 1-3; and
repaint metal surfaces as required.
3-13 ;
and TB SIG
364.
Wiring and components . . . . . . . . .
Inspect wiring and components for broken,
2
shorted, or open connections or other damage.
1-3.
Caution: Do not disturb the position of the
3
Terminals, terminal lugs, and com-
ponent mounting screws . . . . contact-adjusting screw.
1-3.
Inspect for completeness and proper tightness,
4
Inspect the incandescent lamp for secure mouny Fig. 1-1, 1-2, and
Incandescent lamp . . . . . . . . . . . . .
ing in the socket.
1-3.
6
Inspect for signs of damage (leaks, bulges, Fig. 1-1, 1-2, and
Transformer, choke, resistors, and
or `charred insulation).
1-3.
capacitors . . . . . . . . . . . . . . . . . . .
6
Inspect for loose connections and cracked or Fig. 1-1, 1-2, and
Terminal mounting board . . . . . . .
broken insulation.
1-3.
7
Check to see that all publications are complete DA Pam 310-4.
Publications . . . . . . . . . . . . . . . . . . .
serviceable, and in usable condition.
Check DA Pam 310-4 to determine whether new DA Pam 310-4.
8
Modifications . . . . . . . . . . . . . . . . .
applicable MWO's have been published. All
and TM 38-760.
urgent MWO's must be applied immediately
All NORMAL MWO's must be scheduled.
