3-63. FUEL PUMP TESTING AND CALIBRATION (Contd)
i. Throttle Lever Travel Adjustment
Slow switch (23)
Depress until 500 rpm is indicated
on tachometer (7).
Level and angle indicator
Position on fuel pump main
Use level and angle indicator
Do not adjust rear throttle stop from the position it was adjusted to under THROTTLE
LEAKAGE ADJUSTMENT. The rear throttle stopscrew has already been set to provide the
proper deceleration time for the engine, and any change at this point will require
recalibration of throttle leakage.
Throttle lever (48)
a. Using level and angle indicator
The throttle lever (48) may be
(101), set the idle position
repositioned on the throttle
centerline of throttle lever (48) at
shaft (50) as required to attain
55 from the vertical on
the centerline of throttle shaft (50).
b. Move to full-throttle position.
Check centerline travel of throttle
At this position, the centerline
lever (48). Centerline travel from
of the throttle lever must be
idle position to full-throttle
27 as shown on level
position must be 27. If throttle
and angle indicator (101).
lever (48) travel is not correct,
loosen jamnut (102) and adjust
front throttle stopscrew (103) to
attain 27 travel, then lock setting
with jamnut (102).
c. Checking and adjusting throttle
The throttle lever travel template
lever (48) travel using tool 3375355,
has two sets of matched holes for
throttle lever travel template (116).
lever alinement that may be used.
The first and third holes, moving
clockwise from MAX to IDLE on the
template, will set lever travel for
27-29 movement. The second and
fourth holes, moving clockwise from
MAX to IDLE will also set lever
travel for 27-29 movement. Either
set of holes may be used, but do not
use the first and last hole in
combination or the second and third
holes; otherwise an erroneous
reading will result. See figure B.
d. Position template (116) on fuel
Move the throttle lever to idle
pump housing as shown in figure A.
position, and line up the hole on the
throttle shaft lever with the idle hole
on the template. The throttle shaft
lever may be repositioned on the
throttle shaft as required to line up
e. Move throttle lever (48) to full
Line up the hole on the throttle
lever (48) with the appropriate MAX
hole on the template. If throttle lever
travel is not correct, loosen the
jamnut (102) and adjust the front
throttle stopscrew (103) to line up the