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Page Title:
WINDSHIELD WILL NOT DEFROST (Cont) |
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 TM 9-2320-285-24-1
2-68.
HEATERS TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
WINDSHIELD WILL NOT DEFROST (Cont)
Step 3.
Check defroster hoses for air leaks or loose connections.
a.
If connections are loose, tighten; if defroster hoses are
leaking air, replace (para 2-73a).
b.
If defroster hoses are okay, go to step 4 below.
Step 4.
Check if distributor door is open.
a.
If distributor door is open, refer to Malfunction 3 above.
b.
If distributor door is not open, go to step 5 below.
Step 5.
Check distributor door for obstructions.
a.
If obstructions are found, remove.
b.
If obstructions are not found, go to step 6 below.
Step 6.
Check if defroster control cable engages distributor door lever.
a.
If defroster control cable does not engage distributor door lever, reconnect (para 2-73b).
b.
If defroster control cable engages distributor door lever, go to step 7 below.
Step 7.
Check if defroster control cable is cracked, frayed, or kinked.
a.
If defroster control cable is cracked, frayed, or kinked, replace (para 2-73b).
b.
If defroster control cable is not cracked, frayed, or kinked, notify direct support maintenance.
5.
BATTERIES NOT WARMED WHEN BATTERY WARMERS CONNECTED TO POWER SOURCE
Step 1.
Check if coolant heater and engine oil heater are not operating (WATER TEMP gage indicates low and
engine oil heater is cold to the touch).
a.
If coolant heater and engine oil heater are not operating, go to Malfunction 8 below.
b.
If coolant or engine oil heater are operating, go to step 2.
2-765
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