TOPIC 5. ACCELERATOR LINKAGE

TM 10-3930-644-14 & P

A. DESCRIPTION

5. Turn accelerator pedal stop screw in or OUT

The accelerator linkage provides manual, foot pedal

and tighten locknut to adjust pedal to desired

control of the engine speed by either increasing or

pedal release height.

decreasing the fuel flow to the carburetor. Maximum

speed (RPM) is controlled by the governor assembly,

C. PEDAL AND LINKAGE REMOVAL

which is preadjusted at the factory.

1. Pedal. Remove "E" clip from pedal hinge pin,

B. MAINTENANCE AND ADJUSTMENT

slide pin out of pedal and bracket and remove

pedal (Figure 5-1 and 5-2).

Inspect linkage for security of mounting presence of

pins, spring tension and proper action.

2. Shaft Roller, Remove nut and lockwasher from

bearing capscrew, and remove capscrew,

Periodically lubricate moving parts of linkage, except

bearing and two plain washers.

shaft mounting blocks.

3. Accelerator Shaft.

Remove capscrews and

Adjust of linkage may become necessary because of

lockwashers which attach shaft mounting blocks

improper spring action, bent parts or replacement parts.

to front panel or bracket and-'remove assembly

from truck. To remove mounting blocks, remove

1. Ensure that all mechanical' connections are

roll pin from accelerator lever and shaft. Slide

securely made, as indicated in accelerator and

lever and mounting blocks off shaft. Remove

linkage exploded view, Figures 5-1 and 5-2.

spring.

2. Inspect carburetor throttle lever position; throttle

should be in fully CLOSED position with

accelerator pedal released.

3. Have assistant push fully downward on the

accelerator pedal; accelerator rod or cable will

pull adjustable yoke, attached to throttle lever,

(overcoming pressure of CLOSED throttle return

spring), and carburetor throttle will OPEN fully.

4. Release pedal. Throttle should now be fully

CLOSED.

Adjust accelerator rod or cable

throttle yoke in or OUT to ensure a fully

CLOSED condition (with accelerator pedal

released).

Figure 5-1. Accelerator and Linkage (Type I)

R-123-1

3-67