GZD15, WSM TRANSAXLE
2-M7
(6) Motion Control Linkage
The motion control lever (1) and the trunnion shaft of
variable swashplate are linked with the speed shaft (4),
speed control rod (5) and the speed change arm (7). As
the motion control lever (1) is pushed, the swashplate
rotates and forward travelling speed increases. Pulling
the motion control lever (1) increases reverse speed.
A neutral position can be requested by the thing to
operate the motion control lever (1). Moreover, it is
possible to fix to a neutral position by putting the motion
control lever (1) in the neutral slot (3). The motion
control lever (1) is pushed by the speed limit bolt's (2)
working when the motion control lever (1) is removed
from the neutral slot (3). As the result, the machine
synchronizes with the movement of the motion control
lever (1) and begins to move slowly. (The machine is
set like this.) The damper connected to the speed shaft
(4) restricts the movement of the linkage to prevent
abrupt operation or reversing.
B Steering
The Zero-Turn Mower does not have a separate
steering system. Steering is accomplished by varying
the wheel motor speeds. This gives the machine a zero-
turn capability.
As the control levers are moved to a full left turn
position, the right hydraulic pump is moved to the full-
speed forward position and the left pump is moved to
the full-speed reverse position. This will allow the
machine to pivot around its center.
(1) Motion Control Lever (5) Speed Control Rod
(2) Speed Limit Bolt (6) HST
(3) Neutral Slot (7) Speed Change Arm
(4) Speed Shaft A: Front Side
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