TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 388 of 1313
ENGINE CRANKS BUT WILL NOT START IN COLD WEATHER (FUEL SYSTEM OPERATING PROPERLY) -
Continued
T0477DAA
570
570
Figure 2.
Ether Valve.
c.
Set multimeter to VDC.
d.
Turn battery switch to ON position.
e.
Connect red lead to disconnected circuit 570 wire.
f.
Connect black lead to good ground.
g.
Multimeter will display volts DC.
h.
Crank engine and depress ether start switch.
NOTE
If battery voltage is present, ether valve is not operating properly.
i.
Meter reading should be greater than 18 VDC.
CONDITION/INDICATION
DOES ETHER VALVE OPERATE PROPERLY?
DECISION
YES - Go to Step (3).
NO - Go to Step (7).
TM 9-2320-272-23-1
0021
0021-3
Back to Top
