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 690 of 1417
ON-ENGINE ADJUSTMENTS - Continued
WARNING
Hearing protection must be worn by mechanic when engine is running. Noise levels produced
by this vehicle exceed 85dB. Failure to comply may result in injury or death to personnel.
NOTE
Steps (8) through (17) apply to fuel pump with VS governor only.
8.
Start engine (TM 9-2320-272-10) and allow air system to reach normal operating pressure.
9.
Engage crane drive control lever (TM 9-2320-272-10).
10.
Engage transfer power takeoff lever (TM 9-2320-272-10).
11.
Remove spring (Figure 12, Item 7) from throttle lever (Figure 12, Item 5) and bracket (Figure 12, Item 6).
12.
Loosen nut (Figure 12, Item 1) and adjusting screw (Figure 12, Item 2).
13.
Place throttle lever (Figure 12, Item 3) forward in full throttle position and hold. Turn adjusting screw
(Figure
12, Item 2) until it touches air cylinder piston shaft (Figure 12, Item 4).
14.
Release throttle lever (Figure 12, Item 3), hold adjusting screw (Figure 12, Item 2), and tighten nut
(Figure
12,
Item 1).
15.
Install spring (Figure 12, Item 7) on throttle lever (Figure 12, Item 5) and bracket (Figure 12, Item 6).
M9657DAA
1
2
3
4
5
6
7
Figure 12.
Fuel Pump Adjustments.
TM 9-2320-272-23-2
0240
0240-11
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