101Service Manual – SC5000
22 - Steering System
Functional Description
The drive system on the SC5000
machine consists of a single,
steerable drive wheel at the
front of the machine. Steering
control is made through the
steering column that passes
through an offset box and a
universal joint to translate the
rotation from the angled steering
wheel to the vertical shaft and
pinion sprocket. The pinion
sprocket drives a chain that
wraps around the steering disk.
The steering disk has no chain
teeth, but the chain is xed to
the sprocket at the ends of the
chain using standard master
links.
U-Joint
The steering U-joint permits
the steering wheel to operate
on the steering shaft from an
off-axis direction. The U-joint is
a 2-segment type, which allows
for a greater axis angle without
binding in the rotation.
Offset Steering Box
The purpose of the offset
steering box is to permit
electrical wiring to pass through the center of steering wheel and
shaft for the operator controls mounted in front of the steering
wheel. The input shaft is hollow for this purpose.
The input and output shafts are
connected by a toothed belt that
couples the rotation of one shaft to the
other shaft.
Wheel
Motor
Steering Disk
& Chain
U-Joint
Offset
Steering Box
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