Fuel Injector Control Lever and Tube Assembly

rod and the left bank injector control tube lever

(3) Back out the buffer screw (43, fig. 3-13).

(4) Disconnect the clevis pin from the fuel rod

(9) Insert the clevis pin in the fuel rod and the

right cylinder bank injector control tube lever and

and the right cylinder bank injector control tube

position the number 3R injector rack control lever

lever (6, fig. 3-19).

as previously outlined in step 6 for the number 3L

(5) Loosen all inner and outer injector rack

injector rack control lever,

control lever adjusting screws (13) on both injector

control tubes (10). Be sure all injector rack control

(10) Insert clevis pin in fuel control rod and

levers (12) are free on the injector control tubes.

the left cylinder bank injector control tube lever.

Repeat the check on 3L and 3R injector rack

(6) Move the speed control lever (4, fig. 3-13)

t o maximum speed position with light finger

control levers as outlined in Step 7.

pressure. Turn the inner adjusting screw (fig. 3-18)

(11) Manually hold number 3L injector rack

on the number 3L injector rack control lever down

in the full-fuel position, with lever on the injector

until a slight movement of the control tube lever is

control tube, and turn the inner adjusting screw of

observed. This will place the number 3L injector in

the number 2L injector rack control lever down

the full-fuel position. Turn the outer adjusting

until the injector rack of the number 2L injector has

moved into the full-fuel position. Turn the outer

screw down until it bottoms lightly on the injector

control tube. Alternately tighten both the inner and

adjusting screw down until it bottoms lightly on the

outer adjusting screws.

injector control tube. Alternately tighten both the

inner and outer adjusting screws.

(7) To ensure the control lever is properly

a d j u s t e d , hold the speed control lever in the

(12) Recheck the number 3L injector rack to

maximum speed position and press down on the

be sure it has remained snug on the ball end of the

injector rack with a screwdriver or finger tip,

rack control lever while positioning the number 2L

causing rack to rotate. The setting is sufficiently

injector rack. If the rack of the number 3L injector

has become loose, back off the inner adjusting

tight if rack returns to its original position. If rack

does not return to its original position, it is too

screw slightly on the number 2L injector rack

loose. TO correct this condition, back off outer

control lever and tighten the outer adjusting screw.

When the settings are correct, the rack of both

adjusting screw slightly and tighten the inner

injectors must be snug on the ball end of their

adjusting screw. The setting is too tight if, when

m o v i n g the speed control lever from idle to

respective rack control levers.

maximum speed position, the injector rack becomes

(13) Position the number 1L injector rack

tight before the speed control lever reaches its end

control lever as outlined in Steps 11 and 12.

of its travel (stop under the governor cover). This

(14) Position number 2R and 1R injector rack

will result in a step-up in effort required to move the

as outlined above for the left cylinder bank.

speed control lever to its maximum speed position

(15) Turn the idle speed adjusting screw (10,

fig. 3-14) in until it projects 3/16 inch from the

and a deflection in the fuel rod (fuel rod deflection

lock nut (9) to permit starting of the engine.

can be seen at the bend). If rack is too tight, back

off inner adjusting screw slightly and tighten out

(16) Use new gaskets and replace the valve

rocker cover and engine hood (TM 10-3930-243-

adjusting screw.

12).

(8) Remove the clevis pin from the fuel control

3-31