TM-9-2320-260-10
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; OPERATOR'S MANUAL
JUNE 1985
TM-9-2320-260-10 - Page 304 of 411
TM 9-2320-260-10
(3) Open fuel shutoff valve (1) for coolant heater by turning counterclockwise. Open
valve (2) at coolant heater fuel pump in the same way.
(4)
(5)
(6)
Make sure emergency switch (5) is in ON position.
Move battery switch lever (3) to ON position.
Depress press-to-test indicator lamp (4) on control box to check operation of
circuit.
Be sure indicator lamp (4) lights.
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