ENGINE DIAGNOSTIC TEST PROCEDURES
LINKAGE ADJUSTMENT (With Bellcrank) -
Figure 5b. Overtravel For Version "I" Linkage
w/Standard Regulation Governor (With Bellcrank)
Version "II" Linkage w/Standard Regulation
Governor (Figure 5c)
Version " 111" Linkage w/Close Regulation Governor
Position control lever as follows:
Insert 3/16" dia. (1.875" drill) gauge pin
through the holes of the Bellcrank bracket
and control lever.
Assemble throttle lever on pump shaft (Figure
5c). Do not position lever in shaft groove.
With pump shaft in low idle position, re-
locate the pump lever to gauge dimension
shown in Figure 5c for Version "I" Linkage
or Figure 5d for Version "I 1" Linkage.
Do not force lever into over-travel for this
positioning (Figure 5c).
installed on the lever clamping bolt inside
the lever slot to prevent lever breakage.
Tighten clamping bolt to 55 Ibf-in.
Install control rod assembly as follows:
Hold injection pump lever against low idle
stop (see Figure 5c for Version "II" Linkage
or Figure 5d for Version "III" Linkage). Do
NOT force pump into over-travel position
Exposed threads above either control
rod nut must not exceed .42 in.
Position the control rod ends so that the ball
joint banjo face is aligned parallel with the
lever mounting face. Then tighten the
control rod nuts (Figure 5c).
Remove the gauge pin.
Observe operation of linkage:
Rotate control lever counterclockwise from
low idle to high idle and past high idle to
Observe max. over-travel at the injection
pump lever. The injection pump lever tang
bottoms in the lever slot when max.
overtravel is reached. DO NOT force
beyond this point. Pump lever, pump, or
linkage components will be damaged if
excessive force is used.
Release the control lever and let the springs
return the linkage to low idle.
Repeat 4a thru 4c two more times. If
linkage has been properly adjusted, the
linkage will return to low idle position. The
gauge holes will be aligned and the
injection pump lever tang will be centered in
BEFORE STARTING THE ENGINE,
COMPARTMENT AND DEPRESS THE
THROTTLE PEDAL SEVERAL TIMES
TO CHECK FOR SMOOTH ACTION
THROTTLE LEVER AND THROTTLE
PEDAL. THIS MUST BE
Printed in United States of America