TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 419 of 528

Figure 7-71. Adjusting Shutters.

(2) Thermo Unit(Fig.

7-72). With engine at room

temperature, loosen thermo unit guide mounting screws.

The mounting holes in the shutter box are slotted. Slide

the assembly to a position where the thermo unit plunger

rests on roll pins with shutters closed. Tighten mounting

screws.

Figure 7-72. Adjusting Thermo Unit.

TM 9-2330-356-14

7-82. Tachometer Recalibration

a.

Remove six screws which secure the instrument

panel and tilt the panel outward for access to the back of

the tachometer (fig. 4-39).

b.

Start engine. Use a stroboscope and flash on

engine-pump coupling. Increase engine speed until

stroboscope reads 2000 rpm.

c.

Using a small screwdriver, turn adjusting screw

on tachometer (fig. 7-73) until the tachometer reads

2000 rpm.

d.

Release throttle and stop engine.

e.

Close the instrument panel and

screws.

fasten with six

Figure 7-73. Tachometer Calibration.

7-83.

High Temperature Switch Test

Refer to paragraph 4-23 for proper test procedures.

7-84.

Governor Speed and Sensitivity Adjustment

Refer to paragraph 4-76 for proper adjustment proce-

dures.

7-85.

Fuel Stop Solenoid Adjustment (Fig. 7-16)

a.

The solenoid plunger should be adjusted so it

fully stops injection when in the de-energized position.

b.

To adjust the plunger length, turn the adjusting

screw and jamnut on the plunger bottom in or out.

c.

If the plunger sticks, remove the fuel stop

solenoid from its mounting plate (para 7-20). Clean the

plunger and recess in the solenoid.

7-63