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TM 9-2320-364-20-2
2-1137
(1) Set multimeter select switch to volts
dc.
(2) Disconnect wire 1431 from the output
side of isolator.
(3) Connect positive (+) multimeter lead
to isolator output terminal.
(4) Connect negative (–) multimeter lead
to a known good ground.
(a) If 22 to 28 vdc are not present,
repair wire 1431 (see schematic
Fig 2-25) or notify DS
Maintenance.
(b) If 22 to 28 vdc are present, wire
1431 is OK.
VOLTAGE TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
(1) Connect positive (+) multimeter lead
to wire 1431 at ENGINE switch.
(2) Connect negative (–) multimeter lead
to a known good ground.
(a) If 22 to 28 vdc are not present,
replace wire 1431.
(b) If 22 to 28 vdc are present,
wire 1431 is OK.
VOLTAGE TEST
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