3-5. Operator's Daily Preventive Maintenance Checks and
Services
Sequence
References
Item
Procedure
Warning: Prolonged breathing of cleaning
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.
1
Case exterior . . . . . . . . . . . . . . . . . . . . . Inspect for cleanliness. Remove loose dust and
dirt with a clean dry cloth or brush. Re-
move other dirt with a cloth dampened (not
wet) with cleaning compound. Wipe cleaned
surface with a clean dry cloth.
None.
Mounting screws and washers . . . . . . Inspect for loose mounting screws, washers, or
2
bolts.
None.
Operation . . . . . . . . . . . . . . . . . . . . . . . . . Listen to the 20-CPS output. It should be clear
3
and uninterrupted.
I
3-6. Operator's Weekly Preventive Maintenance Checks and Services
Sequence
References
Procedure
Item
No.
a. None.
Case exterior . . . . . . . . . . . . . . . . . . ..O a. Inspect exterior surfaces for signs of rust
1
and corrosion. Refer to higher level main-
tenance for refinishing.
b. None.
b. Inspect for bent, dented, or otherwise dam-
aged surfaces.
Fuses and fuseholders . . . . . . . . . . . . . Inspect fuses for proper size and type. Inspect
2
and 1-3.
Input and output wiring . . . . . . . . . Inspect input and output wire pairs for frays,
3
and 1-3.
cracks, looseness, or breaks. Inspect for loose
or broken connections.
a. Remove dust and loose dirt with a clean
l i n t - f r e e cloth or brush,
Inspect exterior surfaces of the TA-248/TT
b. Remove grease, fungus, and ground-in
and TA-248A/TT. The exterior surfaces should
dirt from the cases; use a cloth dampened (not
be free of dust, dirt grease, and fungus
wet) with cleaning compound.
Section Il. ORGANIZATIONAL MAINTENANCE
(3) Replacement of defective fuses.
3-8. Scope of
Organizational Maintenance
(4) Touchup painting.
structions covering organizational mainte-
nance of the equipment and includes instruc-
tions for performing preventive maintenance
a. Cleaning compound.
services and repair functions to be accom-
b. Lint-free cloth.
plished by the organizational repairman.
c . Fine sandpaper, #000.
b. Organizational maintenance of the equip-
d. Paint, Enamel, Black, semigloss (Federal
ment consists of the following:
Stock No. 8010-844-4792 ) or Paint Enamel,
( 1 ) I n s p e c t i o n and cleaning of interior
Black, Lusterless (Federal Stock No. 8010-887-
Surfaces.
3636).
( 2 ) Visual inspection of vibrator opera-
e. Brush. paint, l / 2 - i n c h w i d t h ( F e d e r a l
tion,
Stock No. 8020-262-9084) .