Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
TRANSAXLE
• Reverse
A
(7) (8) (9)
(4)
·
·
·
..
·
. ....•
(12)
(14
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.. : X .. : Y I;::%;::;,;:]::H : Z
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(1) Cylinder Block (Pump)
(7) High Pressure Relief Port
(13) Power Steering Controller
A: A Port
(2) Swash plate
Plug (Forward)
(14) Hydraulic Pump
B: B Port
(3) Piston
(8) Charge Relief Valve
(15) Flow Priority Valve (Hydraulic
C: C Port
(4) Cylinder Block (Motor)
(9) High Pressure Relief Port
Control Valve)
D: D Port
(5) Check and High Pressure
Plug (Reverse)
(16) Position Control Valve
X: High Pressure
Relief Valve (Forward)
(10)
PTa Clutch Valve
(17) Oil Strainer
Y: Low Pressure
(6) Check and High Pressure
(11)
PTa Relief Valve
(18) Transmission Case
Z: Free Oil
Relief Valve (Reverse)
(12)
Oil Filter Cartridge
When the speed control pedal is stepped on and in reverse, the variable swash plate is tilted as shown in figure
above.
As the pump cylinder block rotates with the input shaft, oil is forced out
of pump port A at high pressure. As
pressure oil enters motor port C, the pistons, which align with port
C, are pushed against the swashplate and slide
down the inclined surface.
Then the output shaft rotates with the motor cylinder block. This drives the machine rearward and the angle
of
pump swashplate determines the output shaft speed.
As the motor cylinder block continues to rotate, oil
is forced out of motor port D at low pressure and returns to the
pump.
2-M6