TM 5-3810-300-24&P-3
14.3.2 LIMITING SPEED GOVERNOR ADJUSTMENT (DUAL RANGE)
3
Loosen all of the inner and outer injector rack
control lever adjusting screws
Be sure all of
the control levers are free on the injector control
tube.
NOTE: On engines equipped with a yield link type fuel
rod, attach a small "C" clamp at the shoulder of the rod
to prevent the yield spring from compressing while
adjusting the injector rack control levers.
4
Move the governor speed control lever to the
maximum speed position as shown in Fig 2. Hold
the lever in that position withl light finger pressure.
Turn the inner adjusting screw on the No. 1 injector
rack control lever down until a slight movement of
the control tube is observed or a step up in effort is
Fig 9. J - Checking Rotating Movement of Injector
noted. This will place the Noo 1 injector rack in the
Control Rack
full-fuel position. Turn the outer adjusting screw
down until it bottoms lightly on the injector control
11
Stop the engine and install the fuel rod between the
tube.
differential lever and the control tube lever.
NOTE 1: Overtightening of the injector
12
Install the governor cover and lever assembly.
rack control tube lever adjusting screws
during installation or adjustment can
Position Injector Rack Control Levers
result in damage to the injector control
tube. The recommended torque of the
The position of the injector racks must be correctly set in
adjusting screws is 24-36 in-lbs.
relation to the governor. Their position determines the
amount of fuel injected into each cylinder and ensures
NOTE 2: The above step should result in
equal distribution of the load.
Properly positioned
injector rack control levers will result in the following:
placing the governor linkage and control
tube assembly in the same position that
Speed control lever at a maximum speed position.
they will attain while the engine is
running at full load.
Governor low speed gap closed.
5
To be sure the control lever is properly adjusted,
High speed spring plunger on the seat in the governor
hold the speed control lever in the maximum speed
control housing.
position and press down on the injector rack with a
screw driver or finger tip and note "rotating"
Injector racks in the full-fuel position.
movement of the injector control rack (Fig 3) when
the speed control lever is in the maximum speed
Adjust the No. 1 injector rack control lever (267), Fig. 2,
position
Hold the speed control lever in the
first to establish a guide for adjusting the remaining
maximum speed position and, using a screw driver,
injector rack control levers.
press downward on the injector control rack The
rack should tilt downward (Fig
4) and when the
1
Disconnect any linkage attached to the governor
pressure of the screw driver is released, the control
speed control lever.
rack should "spring"back upward.
2
Loosen the idle speed adjusting screw lock nut and
If the rack does not return to its original position, it is too
back out the idle speed adjusting screw until 1/2" of
loose. To correct this condition, back off the outer
the threads project from the lock nut when the nut is
adjusting screw slightly and tighten the inner adjusting
against the high speed plunger.
screw slightly.
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