Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601! WSM
TRANSAXLE
Checking and Adjusting HST Neutral Spring (for Dynamic
Braking)
A WARNING
• Do
not operate if tractor move on level ground with foot off
speed control pedal.
•
If tractor moves on level ground with foot off the pedal, or, if
the pedal is too slow in returning to "Neutral" position when
removing the foot from the pedal, adjust the HST neutral
spring.
The HST neutral spring located under the front right side
of the
fender can adjust returning speed of speed control pedal.
Since the HST neutral spring tension is weakened, the HST
tension should be checked and adjusted every 100 hours.
1. Checking the HST neutral spring tension: Dynamic braking
- Start the engine and hold the maximum engine speeds.
- Operate the machine
on the concrete level ground.
- Shift the range gear shift lever to "High" position.
- Depress the speed control pedal
to "Forward".
- Release the foot from the speed control pedal.
- Check the distance between the foot releasing point and the
machine stopping point.
- If the distance is more than approximately 3 m (10 feet),
strengthen the HST neutral spring tension so that the machine
will stop
in approximately 3 m (10 feet) after releasing the foot
from the speed control pedal.
(Reference)
Distance (L) between
the foot releasing point
and
the machine
Reference
Approximately 3 m (10
feet)
stopping point
(6)
3TAAAAIKP006A
3TAAAAFKP049A
2. Remove the step from the machine.
- Loosen the lock nut (2).
- Turn the adjusting nut (3) halfturn to pull the HST neutral spring
(1 ).
- Tighten and lock the lock nut (2).
Start the engine and check dynamic brake as mentioned
former.
- If the machine will not stop with dynamic brake
in approximately
3 m (10 feet). adjust the neutral spring again.
(Reference)
• The feeling of dynamic braking can be adjusted by changing the
arm (6) position
of damper (5).
length (M) of adjusting
rod
at shipping the
machine from the
Reference
10mm
0.39 in.
factory
(1)
HST Neutral Spring
(2)
lock Nut
(3) Adjusting Nut
(4) Adjusting Rod
(5) Damper
(6) Arm
(A) Foot Releasing Point
(8) Machine Stopping Point
L: Distance between Foot Releasing
Point and the Machine Stopping
Point
M : Length
of Adjusting Rod from
Stay
W1079634
2-S11