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 297 of 1417
NG30: ENGINE CRANK - NO START - Continued
STEP
2.
Check fuel supply.
a.
Verify there is fuel in tank.
b.
If fuel filters have been changed or if fuel tank has been run dry, bleed air out of fuel system as necessary
M939/A1 (TM 9-2320-272-10), M939A2 (WP
0239).
c.
Drain any water from primary fuel filter. Continue to drain until fuel appears (TM 9-2320-272-10).
d.
Check for kinked, flattened, or broken fuel lines from tank to filters and engine.
e.
If equipped with quick-disconnect fitting, check for blockage in quick-disconnect.
f.
Check fuel shutoff solenoid and circuitry, and emergency fuel shutoff.
CONDITION/INDICATION
Is fuel supply OK?
DECISION
YES - Go to Step (4) (M939/A1 vehicles). Go to Step (3) (M939A2 vehicles).
NO - Go to Step (7).
STEP
3.
Install transducer– do offset.
a.
Stop vehicle engine.
b.
Remove plug on transfer pump.
c.
Install blue stripe TK pressure transducer in place of plug on transfer pump.
d.
Connect P1 of transducer cable W4 to J1 or J2 on VTM.
e.
Connect P2 of transducer cable to connector on pressure transducer.
f.
Dial 50 into TEST SELECT.
g.
Press and hold TEST until CAL message appears on display.
T0017DAA
Figure 1.
CAL Prompt Message.
h.
Release TEST.
i.
Wait for offset value to appear on display.
TM 9-2320-272-23-2
0199
0199-2
Back to Top
