Direct Support Mechanical Troubleshooting - continued

TM 9-2320-386-24-1-2

0293 00

Direct Support Mechanical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

48. WINCH LEAKS OIL

Step 1. Check for defective oil seals and gaskets.

Replace oil seals and gaskets if defective (TM 9-2320-361-34).

Step 2. Check for cracked covers and housings.

Replace covers and housings if cracked (TM 9-2320-361-34).

END OF TESTING!

WINTERIZATION KITS

NOTE

Mechanical troubleshooting for personnel and engine coolant

heaters is the same. The following is for fuel burning personnel

heaters.

49. HEATER FAILS TO TURN ON

Bench test for defective control parts (TM 9-2320-361-34).

If defective, replace control parts as necessary (TM 9-2320-361-34).

END OF TESTING!

50. HEATER OVERHEATS OVERHEAT SWITCH IS GOOD

Step 1. Check for obstructed air flow.

If air flow is obstructed, clear obstructions from fuel supply and ventilating air passages

(TM 9-2320-361-34).

Step 2. Check fuel control valve (TM 9-2320-361-34).

Replace fuel control valve if defective (TM 9-2320-361-34).

END OF TESTING!

51. HEATER OVERHEATS CONTINUES TO RUN

Test overheat switch (TM 9-2320-361-34).

Replace overheat switch if defective (TM 9-2320-361-34).

END OF TESTING!

52. HEATER OUTPUT TOO LOW

Step 1. Check for obstructed fuel lines or contaminated fuel supply.

If obstructed, clear fuel supply lines (TM 9-2320-361-34 for internal fuel supply;

TM 9-2320-361-20 for external fuel supply).

Step 2. Drain and check fuel control valve (TM 9-2320-361-34).

Replace fuel control valve if defective (TM 9-2320-361-34).

END OF TESTING!

53. HEATER SMOKES AND BANGS WHEN STARTING

Perform malfunction 52.

END OF TESTING!

54. BLOWER WILL NOT STOP AFTER TURNOFF

Check flame detector switch condition (TM 9-2320-361-34).

Replace flame detector switch if defective (TM 9-2320-361-34).

END OF TESTING!