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If the wheel is hard to turn, unplug the steering amplifier connection. If the
a.
steering is easier, then it is usually a bad steering amplifier. Refer to solution
code AMP-01.
b. If there is a damaged left male connector that has missing pins, a broken
connector housing or a broken retention clip, refer to solution code AMP-01.
c. If there is a damaged left female connector that has any damaged wires, a
broken connector housing a broken retention clip or something stuck in the
connector, refer to solution code AMP-02.
d. If there is a damaged right male connector that has missing pins, refer to solution
code AMP-01.
e. If there is a damaged left female connector that has any damaged wires or
something stuck in the connector, refer to solution code
Traction Encoder Check
The Traction Encoder is responsible for tracking the movement (distance) traveled by the
scrubber. As the traction wheel spins, the encoder counts ticks and relays that information to
the BCM, thereby quantifying and monitoring how much distance the scrubber has moved. The
purpose of this check is to ensure the traction encoder is not damaged.
1. Ensure that the hex screw (indicated with the red arrow in the Figure below) is tight. It
should enable the encoder to be clamped to the axel. As the unit is driven, the axel
(indicated with the yellow arrow in the Figure below) should spin.
Brain Corporation Proprietary and Confidential
64
Steering Troubleshooting Guide
Date Published: 4/9/21
Downtrunk-01.
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