TM 5-3610-287-24
Organizational Troubleshooting (Cont)
Table 2-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12.
PHASE AND/OR VOLTAGE METERS DO NOT OPERATE (CONT)
Connect main power cable and set MAIN POWER switch to ON.
Step 3.
Test voltage across meter. Reading should be 110 5 Vac.
If reading is correct, replace meter (para 2-50).
Test voltage from ground to meter terminal. Reading should
Step 4.
be 0 Vac.
If reading is 110 5 Vac, repair ground connections in
circuit breaker panel or replace ground wire.
13.
PEASE LIGHTS DO NOT OPERATE.
Reverse correct and incorrect phase lamp bulbs.
Step 1.
If correct phase light operates, replace defective bulb.
WARNING
q Main
power cable MUST be disconnected from
Section before performing maintenance on
power monitor assembly. Wiring to power
monitor assembly comes directly from main
power input receptacle. Failure to
disconnect main power cable WILL result in
death or serious injury.
q HIGH
VOLTAGE. When working on high voltage
components, always have an additional person
present. Keep one hand away from equipment
to reduce hazard of current flowing through
vital organs of body. Remove all jewelry
from fingers, wrists, and neck before
working on electrical components. Failure
to observe this warning may result in death
or serious burns.
Step 2. Set MAIN POWER switch to OFF and disconnect main power
cable. Remove power monitor assembly and check for loose
or broken wires.
Repair wiring.
