TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 267 of 1417
G03: ENGINE START- LUBRICATION CHECK
STEP
1.
Check fluid levels.
CAUTION
Check oil level before starting engine.
a.
Check oil level.
Add oil if necessary (Volume 5, WP
0820).
WARNING
Do not remove cap from surge tank when engine is hot. Wait until engine cools.
CAUTION
When filling cooling system on M939A2 series vehicles, ensure drain valve on aftercooler
is open. Failure to do so may result in damage to equipment.
b.
Remove surge tank cap, check coolant level.
Add coolant if necessary (Volume 5, WP
0820).
c.
Check battery electrolyte level.
Add distilled water if necessary.
CAUTION
Ensure all hydraulic power switches are off. Disengage manual hydraulic levers if vehicle
is so equipped. Damage could result to vehicle.
d.
Start engine (TM 9-2320-272-10).
CONDITION/INDICATION
Does engine crank and start?
DECISION
YES - Go to Step (3).
NO - Go to Step (2).
STEP
2.
Check if engine cranks.
CONDITION/INDICATION
Does engine crank?
DECISION
YES - Perform NG30: Engine Crank -No Start Test (WP
0199).
NO - Perform NG20: No Crank -No Start Test (WP
0198).
TM 9-2320-272-23-2
0190
0190-2
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