TM 9-2320-361-24-1
0006 00
0006 00-27
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
Table 21. Personnel Fuel Burning Heater Troubleshooting Procedures (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. HEATER WILL NOT
OPERATE IN HIGH OR
LOW POSITION
(Contd)
Test 4. Check for input power at
fuel pump.
1. Set multimeter to range
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
lead to frame ground.
Voltage should be present.
Test 5. Check fuel pump for proper
operation.
Test 6. Check for power input at
personnel heater.
1. Set multimeter to voltage
that will measure 24 VDC.
2. Disconnect harness
connector at personnel
heater.
3. Set heater control switch.
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 B, C, and D. Voltage
should be present at all
pins tested.
1. If voltage is present, replace
personnel fuel burning heater
(WP 0351 00).
2. If voltage is not present, repair or
replace lead 25 (WP 0090 00).
Refer to WP 0006 00, table 21,
malfunction 2.
1. If voltage is present, replace
personnel heater (WP 0351 00).
2. If voltage is not present at one or
more pins, repair or replace