GOVERNOR AND INJECTOR RACK CONTROL ADJUSTMENT
Position Injector Rack Control Levers
The position of the injector control racks must be correctly set in relation to the governor. Their position
determines the amount of fuel injected into each cylinder and ensures equal distribution of the load. Adjust the
rear injector rack control lever first to establish a guide for adjusting the remaining levers.
Remove the valve rocker cover.
Disconnect the fuel rod at the stop lever.
Loosen all of the inner and outer injector rack control lever adjusting screws. Be sure all of the
injector rack control levers are free on the injector control tube.
Move the speed control lever to the maximum speed position.
Adjust the rear cylinder injector rack control lever adjusting screws (Fig. 3) until both screws are
equal in height and-tight on the injector control tube.
Move the rear injector control rack into the full-fuel position and note the clearance between the
fuel rod and the cylinder headbolt. The clearance should be 1/32 inch or more. If necessary, readjust the
injector rack adjusting screws until a clearance of at least 1/32 to 1/16 inch exists. Tighten the adjustment
Loosen the nut which locks the ball joint on the fuel rod. Hold the fuel rod in the full-fuel position
and adjust the ball joint until it is aligned and will slide on the ball stud on the stop lever (Fig. 4). Position the
shutdown cable clip and tighten the fuel rod locknut to retain the adjustment.
Check the adjustment by pushing the fuel rod toward the engine and make sure the injector control
rack is in the full-fuel position. If necessary, readjust the fuel rod.
Manually hold the rear injector rack in the full-fuel position, with the lever on the injector control
Figure 4. Adjusting Fuel Rod Length
Figure 3. Adjusting Injector Rack Control Lever