TM 9-2320-211-10
(Cont.)
TABLE 3-2. TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
59. Windshield defrosters nonoperating.
Step 1. Check adjustment of diverter duct damper control.
Adjust defroster control handle.
Step 2. Check for restrictions in defroster deflectors.
Clear restriction.
Step 3, All other causes.
Sce organizational maintenance unit.
60. Engine oil shroud not receiving heat (engine coolant heater only).
Step 1. See if coolant heater is operating.
Start heater. If inoperative, see organizational maintenance unit.
Step 2. See if coolant heater exhaust tube is disconnected from oil pan shroud.
Connect exhaust tube to oil pan shroud.
Step 3. All other causes.
See organizational maintenance unit
61. Engine coolant system not receiving heat (engine coolant heater only).
Step 1. See if coolant heater is operating.
Start heater. If inoperative, see organizational maintenance unit.
Step 2. See if one or more shutoff cocks are closed at engine or coolant heater.
Open coolant shutoff cock(s).
Step 3. Check for restriction in coolant hose(s).
See organizational maintenance unit
Step 4. All other causes.
See organizational maintenance unit.
TA
067170
3-36