3 - 1
Traction Motor
The motor is of the variable swash plate, axial piston type.
Pressurised oil is routed via rear flange 101 and timing plate
109 into cylinder block 104.
The fixed timing plate directs oil to force piston 105 against
swash plate 103, until it reaches the end of its power stroke,
causing the cylinder block to rotate 180°. When the piston
reaches the end of its power stroke, the cylinder is
disconnected from the oil supply line and instead is
connected to the return line. The next 180° of cylinder block
rotation causes the piston to complete its cycle by expelling
the oil from the cylinder back to tank.
Altogether there are nine pistons, operating sequentially as
described above to provide smooth continuous rotation of
the cylinder block, which is spline coupled to drive shaft
102.
Section F Transmission
9803/6410
Section F
3 - 1
Issue 1
Operation
JS01620
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