TM-9-2320-272-10
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; OPERATOR'S MANUAL
SEPTEMBER 2004
CHANGE 2
TM-9-2320-272-10 - Page 346 of 481
TM 9-2320-272-10
2-237
CAUTION
Take care not to accidentally close coolant shutoff valves.
During arctic operations, all coolant shutoff valves must remain
open at all times.
(d)
Do not close coolant shutoff valves (5) and (6) during any
arctic operation.
2-45. ENGINE COOLANT HEATER KIT (Contd)
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