ENGINE DIAGNOSTIC TEST PROCEDURES
Section 6
•
Accelerator Linkage - 400 Series On-Highway
(with Robert Bosch MW Fuel Injection Pumps)
FROM FORM CGED-365
ACCELERATOR LINKAGE
3
A.
ADJUSTED TO OBTAIN OVERRIDE AT FULL PEDAL DEPRESSION
METHOD
1st CHECK
2nd CHECK
VISUAL CHECK
Inspect Throttle Linkage
1.
With accelerator pedal at full depression, visually
inspect tang in outer control lever. Tang should
be in "override" position, Figure 1.
Figure 1a. Control Lever Override
(Linkage View Without Bellcrank)
NOTE:
High
idle
speed
and
maximum engine horsepower will be
obtained
when
control
lever
is
rotated fully counterclockwise (CCW)
and inner control lever contacts high
idle stop. Override position ensures
that slight wear can occur in the
throttle cable and the control lever
will still contact the high idle stop.
2.
If the control lever was in override position at full
pedal depression,-enter OK in the 1st check box.
If required, adjust throttle cable to achieve
override
and
indicate
correction
in
the
Comments Section of the Diagnostic Analysis
Guide.
3.
If required, adjust throttle linkage to achieve
override. Refer to the Linkage Adjustment
Procedure.
Figure 1b. Control Lever Override
(Linkage View With Bellcrank)
CGES-240-4
Printed in United States of America
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