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TM 10-3930-673-20-1
KNOWN INFO
TEST OPTIONS
2
Fuse is OK.
Visual inspection.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Are coolant lines to arctic
heater assembly restricted,
Lines restricted, leaking, or
If cooling system does not operate
leaking, or damaged?
damaged.
correctly, the arctic heater will not
operate.
Repair or replace
YES
coolant lines to
heater assembly.
NO
KNOWN INFO
TEST OPTIONS
3
Coolant lines are OK.
Visual inspection.
Is fuel line to arctic heater
POSSIBLE PROBLEMS
REASON FOR QUESTION
assembly restricted, leaking,
Fuel line damaged, restricted, or
If the fuel line is damaged the
or damaged?
leaking.
heater will not operate.
Replace fuel line to
YES
heater assembly.
NO
TR01475
2-770.1
Change 1
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