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Page Title:
Table 1. Heating Systems Troubleshooting Procedures - continued |
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 TM 9-2320-361-24-1
0015 00
HEATING SYSTEMS TROUBLESHOOTING (Contd)
Table 1. Heating Systems Troubleshooting Procedures (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 4. Check for input power at fuel
3. PERSONNEL FUEL
pump.
BURNING HEATER
INOPERATIVE
1. Set multimeter to a range
(Contd)
that will measure 24 VDC.
2. Disconnect lead 25 at fuel
pump.
3. Touch multimeter positive
lead to contact end of lead 25.
4. Touch multimeter negative
1. If voltage is present, check fuel
lead to frame ground. Voltage
pump for proper operation. Refer
should be present.
to WP 0006 00, table 21,
malfunction 2, step 5.
2. If fuel pump is operating properly.
Go to test 5.
3. If voltage is not present, repair or
replace lead 25 (WP 0090 00).
Test 5. Check for power input at
personnel heater.
1. Set multimeter to a voltage
that will measure 24 VDC.
2. Disconnect harness connector
at personnel heater.
3. Set heater control switch to
the run position.
4. Touch multimeter positive
lead to pin A of harness
connector.
5. Touch multimeter negative
lead to frame ground.
6. Repeat steps 4 and 5 for pins
1. If voltage is present, replace
B, C, and D. Voltage should be
personnel heater (WP 0351 00).
present at all pins tested.
2. If voltage is not present at one or
more pins, repair or replace
harness connector (WP 0090 00).
0015 00-12
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