Jacobsen SXG323, Service Manual

Page: 116 / 230

CHAPTER 10. HYDROSTATIC TRANSMISSION
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10
f. When the lawn mower creeps forward, tilt the
adjust nut slightly toward A and when
creeps reverse, tilt toward B by manipulating the
add just nut. Then tighten it temporarily with the
lock nut.
Fig. 10-46
g. Start the engine and turn the throttle lever to the
intermediate position between
r
and
t
posi-
tions.
h. Release the parking brake.
i. When the lawn mower does not start moving, it
shows that the neutral position is properly set.
j. Stop the engine and apply the parking brakes.
Tighten the adjust nut securely.
Fig. 10-47 (1) HST rod. (3) Trunnion arm
(2) Lock nuts.
k. Next, align both HST pedals in height by adjust-
ing the effective length of the HST rod with the
two lock nuts. Be sure to tighten the lock nuts
securely after adjustment.
l. Loosen the lock nut of the crank plate stopper bolt
and screw in the bolt slightly to shorten the effec-
tive length.
m. Free the Neutral arm and depress HST pedal.
n. Then adjust the effective length of the stopper
bolt until the head comes into contact with the
stopper and tighten it with the lock nut.
Fig. 10-48 (1) HST pedal (3) Lock nut
(2) Stopper bolt (4) Crank plate
A B