TM 9-4910-663-12
4-8.
Disassembly
a.
(1) Disconnect main power source.
(2) Remove screws that attach instrument panel assembly to test
stand and lower instrument panel assembly.
Inspection.
b.
(1) Check to see that meter connections are secure.
(2) Check to see that cable insulation is not hard, brittle,
spongy, oil soaked, cracked, frayed, or otherwise deteriorated.
(3) Inspect switches for visual damage and for loose wires.
Assembly.
c.
(1) Raise instrument panel assembly into position and attach
instrument panel assembly to test stand with screws.
(2) Refer to direct support for replacement.
(3) Inspect knobs for damage. Replace damaged knobs.
4-9.
Disassembly.
a.
(1) Disconnect main power source.
(2) Remove screws that attach control panel assembly to test
stand.
(3) Raise control panel assembly and secure with the bolt
slide located on top of the left side of test stand.
Inspection.
b.
(1) Check to see that all cable connections are secure.
(2) Check to see that cable insulation is not hard, brittle,
spongy, oil soaked, cracked, frayed, or otherwise deteriorated.
(3) Inspect rotary switches and rheostats for damaged contact
points.
Assembly.
c.
(1) Disengage control panel assembly lock and lower control
panel assembly.
4-7