Squeegee System 156Service Manual – SC6500
™
Squeegee Lift Actuator Reverse Function
The squeegee actuator operates in the automatic mode when scrubbing and will automatically lower to
its normal operating position when the scrub system is enabled. To prevent squeegee blade damage and
excessive wear, the Squeegee Actuator M3 will lift the squeegee tool from the oor when the machine is
operated in reverse.
To get the squeegee tool to lift in reverse, the drive pedal must be moved off its neutral or forward position,
which triggers the needed reverse direction output from the A1 Speed Controller to the A2 Control Board
Assembly.
The A2 Control Board Assembly sends voltage to the Squeegee Actuator M3 at the appropriate
polarity, and for a specied time, to lift the squeegee to a position that is half the upward distance that the
squeegee moves when the scrub system is switched off.
Moving the drive pedal back to the neutral/forward switches off the reverse direction output from the A1
Speed Controller
to the A2 Control Board Assembly. The A2 Control Board Assembly then sends voltage to the
Squeegee Actuator M3 at the appropriate polarity to lower the squeegee tool back onto the oor.
Component Locations
The Squeegee Assembly is
attached to the Squeegee Mount
Weldment
, which is attached to the
Squeegee Lift Arm Weldment. The
Squeegee Assembly is fastened to
the Squeegee Mount Weldment with
two Thumb Nuts.
The Squeegee Lift Actuator raises
and lowers the Squeegee Assembly,
and is mounted horizontally in the
left rear of the chassis underneath
the recovery tank. The Squeegee
Lift Actuator
is attached to the
machine frame and to the
Squeegee Lift Arm Weldment.
The Ball Joint attaches the
Squeegee Lift Arm Weldment to the
frame and allows the Squeegee
Assembly
to move as necessary.
Squeegee
Assembly
Squeegee
Lift Arm
Weldment
Thumb
Nut (2)
Squeegee
Mount
Weldment
Squeegee
Arm
Weldment
Squeegee
Lift
Actuator
Ball
Joint
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