Table 21. Personnel Fuel Burning Heater Troubleshooting Procedures - continued

TM 9-2320-361-24-1

0006 00

MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)

Table 21. Personnel Fuel Burning Heater Troubleshooting Procedures (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Test 4. Check for input power at

1. HEATER WILL NOT

fuel pump.

OPERATE IN HIGH OR

LOW POSITION

1. Set multimeter to 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, replace

lead to frame ground.

personnel fuel burning heater

Voltage should be present.

(WP 0351 00).

2. If voltage is not present, repair or

replace lead 25 (WP 0090 00).

Test 5. Check fuel pump for proper

Refer to WP 0006 00, table 21,

operation.

malfunction 2.

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

1. If voltage is present, replace

pins B, C, and D. Voltage

personnel heater (WP 0351 00).

should be present at all

pins tested.

2. If voltage is not present at one or

more pins, repair or replace

0006 00-27