TRANSMISSION
L3301, L3901, L4701, WSM
3-M30
[3] LINKAGE MECHANISM
(1) HST PEDAL CONTROL LINKAGE
L3301/L3901
The speed control pedal (HST pedal) (1) and the holder (Trunnion) are linked with the pedal bracket and HST
neutral rod (5).
As the HST pedal (1) is depressed to forward, the neutral holder (4) is rotated, then the swash-plate is tilted by
trunnion shaft and forward travelling speed increases. Then, the swash-plate is returned to neutral with the neutral
holder arm (2), when the pedal is released. The ball bearing (8) on the neutral holder (2) pulled with the neutral spring
(3) seats the detent of the neutral holder arm (4) so that the neutral holder arm returns to neutral.
The damper (6) is connected to the HST pedal (1) and restricts the movement of the linkage to prevent abrupt
operation or reversing.
9Y1211012TRM0033US0
(1) HST Pedal
(2) Neutral Holder Arm
(3) Spring
(4) Neutral Holder
(5) Neutral Rod
(6) Damper
(7) Pedal Bracket
(8) Ball Bearing
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