TM 9-2350-247-20-1
COOLANT HEATER MALFUNCTIONS
0086 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanics Tool Kit (WP 0541 00, Item 57)
Multimeter (WP 0541 00, Item 29)
Slip Joint Pliers (WP 0541 00, Item 33)
Personnel Required
Unit Mechanic
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Heater on HI (see your -10)
Engine cold
T
1. Press HEATER ON indicator cover lens (see your -10).
2. Does indicator light come on?
YES
NO
GO TO BY (PAGE 0086 00-2)
Y
1. Release HEATER ON indicator.
2. Move HEATER SWITCH to START.
3. Does heater blower come on?
YES
NO
GO TO CY (PAGE 0086 00-4)
2Y
1. Check if heater fuel pump comes on.
2. Does heater fuel pump come on?
YES
NO
GO TO EY (PAGE 0086 00-6)
3Y
1. Check if coolant circulating pump comes on.
2. Does coolant circulating pump come on?
YES
NO
GO TO GY (PAGE 0086 00-8)
4Y
1. Check if HEATER ON indicator comes on in less than 3 minutes.
2. Does HEATER ON indicator come on in less than 3 minutes?
YES
NO
GO TO HY (PAGE 0086 00-9)
0086 00-1