TM 11-6625-596-12
4-3.
Monthly Preventive ,Maintenance Checks and Services Chart
Seq
Item
Procedure
Reference
No.
1
Preservation
Inspect the equipment to see that it is free of bare spots,
rust, and corrosion.
2
Pluckout items
Inspect the seating of assemblies lA3Al through IA3A10,
fuses 1A3F1 and 1A4F2 through F5, and lamps 1A4DSl
1-5,
and DS2
4-1.
3
Assemblies 1A3Al through
Inspect for loose connections, cracks, and breaks Return
lA3A10 and terminal
to higher category maintenance for repair.
boards.
4
Resistors and capacitors
Inspect for cracks, blistering, burn discoloration, loose ter-
minals, or any detrimental defects Return to higher
category maintenance for repair.
5
Do not remove, rock, or twist to inspect Use only direct
pressure to insure the item is fully seated Inspect for
snug fit and good contact.
6
Test lead sockets (binding
Inspect for dirt, corrosion, chipping, and other damage;
clean or replace as applicable.
7
Screw-type terminals
Inspect binding posts, buzzer, and meter for corrosion, dirt,
and loose contacts Clean and/or tighten.
8
Rubber strip
Check for breaks Reattach or replace as necessary Cement
in place.
9
Bushings, gaskets, insulation
Inspect for cracks, chipping, loose sleeves, or excessive
10
Shock mounts,
diodes Inspect for cleanliness and tightness Clean and/or tighten.
1A3CR1 and CR2, and
transistors 1A3Q1 and
Q2 mountings.
11
Hardware
Inspect all exterior and interior hardware for looseness and
damage Screws and bolts must be tight and not damaged.
12
Interior of chassis and case
Clean both items.
13
Publications
See that all publications are complete, serviceable, and
DA Pam
current 3104.
14
Modifications
Check DA Pam 310-7 to determine whether new applicable
TM 38-750
MWO's have been published All URGENT MWO's must
and DA
be applied immediately All NORMAL MWO's must be
Pam
scheduled 310-7.
15
Spare parts
Check all spare parts (operator and organizational) for
App B.
general condition and method of storage No overstock
should be evident and all shortages must be on valid
requisitions.
16
Operating check
8-32).
4-3