TM 55-4920-431-13
A-Annually
Item
Interval
To Be
Procedures
Item
No.
Inspected
A
NOTE
Procedures for gaining access
to inside of case are described
1
Check for tightness in socket and that hold
down spring is in place. Check for loose
(1, fig 5-3)
wire connections
Analog
2
Check that harness is properly attached. Check
Converter
for broken wires and deteriorated insulation.
(19, fig 5-1)
Check screws (20, fig 5-1) for tightness.
Fuses
Check that fuses are proper size and type
3
(7, fig 5-3)
and in place in fuseblock (11, fig 5-3)
Meters
4
Verify accuracy in accordance with
(1, 2, fig 5-2)
NOTE
Foldouts are located at back of manual
Section III. TROUBLESHOOTING
in the tester itself, and not in the APU or ESU being tested. Additional continuity checks
can be performed by using schematic diagram, figure FO-1 and wiring diagram, figure
identification of connector contacts.
NOTE
Refer to wiring diagram, figure FO-2 to locate compo-
nents, wires, connectors, pins and terminals where
test connections are to be made. The wiring diagram
covers only internal wiring of the tester. Refer to
schematic diagram, figure FO-1, for wiring of
harnesses.
