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 393 of 1313
ENGINE CRANKS BUT WILL NOT START IN COLD WEATHER (FUEL SYSTEM OPERATING PROPERLY) -
Continued
STEP
5.
DOES CIRCUIT 570 WIRE CONDUCT BATTERY VOLTAGE TO FUEL PRESSURE SWITCH?
a.
Check for battery voltage at ether start switch connector. Refer to point to point schematics.
b.
Disconnect circuit 570 wire to fuel pressure switch from ether start switch.
T0480DAA
570
Figure 5.
Ether Start Switch Circuit 570 Wire.
TM 9-2320-272-23-1
0021
0021-8
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