CHAPTER 8. MAINTENANCE
59
11. NEUTRAL POSITION OF HST
WARNING: After a long time of use, the
neutral position of the HST unit can shift,
which will cause various troubles such as
difficulty in stopping the machine, changing
over between forward travel and reverse
travel, etc., which is very dangerous.
IMPORTANT: When the HST unit is out of order, ask
your dealers to repair it. But when there
is no alternative but for the user to adjust
it, follow the next instructions.
The HST adjustment plate is located in the left side of
the front mower. With this plate the neutral position can
be adjusted.
a. Detach the mower deck from the front mower.
b. Place the front mower on level, hard ground. Put
tire chocks in the positions a little apart from the
front wheels and rear wheels.
c. Before adjustment, make sure that the engine is
stopping to prevent accidents.
d. When the front mower creeps without depressing
the HST travel pedal, adjust the Plate(2) by
loosen the Nut(1). When the front mower creeps
forward, rotate the Plate(2) to clockwise. When
the front mower creeps reverse, rotate the
Plate(2) to counter-clockwise. Then tighten it
temporarily with the lock nut.
e Start the engine and hold the throttle lever in an
intermediate position between the HIGH speed
position and the LOW speed position.
f. Release the parking brake.
g. When the front mower does not start moving, it
shows that the neutral position is properly set.
h. Stop the engine and apply the parking brake.
Tighten the temporarily tightened lock nut
securely.
(1) Lock Nut (2) Plate
FIG. 71
To Next Page
Loading...
