ENGINE DIAGNOSTIC TEST PROCEDURES
LINKAGE ADJUSTMENT: (With Bellcrank) Refer to
Figure 5a for Version "I" Linkage, Figure 5b for
Version "II" Linkage and Figures 5b and 5c for
Version "III" Linkage.
WITHOUT BINDING OR STICKING.
INSERTS MUST BE FREE OF PAINT,
GREASE, OIL, DIRT, RUST, OR ANY
OTHER FOREIGN MATERIAL. CLEAN
OR REPLACE PARTS IF NECESSARY.
ADJUSTMENTS AFTER ENGINE HAS
BEEN RUN-IN AND INJECTION PUMP
HAS BEEN SET.
Version "I" Linkage With Standard Regulation
Governor (Figure 5a)
Postion bellcrank bracket and control lever as
Locate bellcrank shaft centerline 15.82" +
0.06" from front finish of flywheel housing
(cranking motor pad). Loosen bracket
mounting hardware for this adjustment if
Insert 3/16" dia. (1.875" drill) gauge pin
through the holes (17, Figure 5a) of the
bellcrank bracket and control lever.
Assemble throttle lever on pump shaft. Do NOT
position lever in shaft groove.
With pump shaft in low idle position,
dimension shown in Figure 5a.
Do not force lever into over-travel for this
positioning (Figure 5b).
Spacer (23, Figure 5a) must be installed on
the lever clamping bolt inside the lever slot
clamping bolt to 55 Ibf-in. (27, Figure 5a).
Install control rod assembly as follows:
Hold injection pump lever against low idle
stop (do not force pump lever into over-
Exposed threads above either control rod nut
must not exceed 0.42 in. (29, Figure 5a).
Position the control rod ends so that the ball
joint banjo face is aligned parallel with lever
mounting face. Then tighten the control rod
Remove 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. over-
travel 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
Printed in United States of America