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Service Manual – SC401, SCRUBTEC 334
34 - Scrub System, REV
Functional Description
The REV brush system can be operated by the operator
The REV brush has a movement with distinctive orbital movements and anticlockwise rotation
The REV allows the surface concerned to be washed/cleaned by the movement of the brush The main
component of the system is the deck where the brush or the pad suitable for the type of surface to be cleaned
is installed
The brush deck is fixed to the machine with a support to which the electrical actuator and two anchor levers
are applied
The electrical actuator (M5) lifts and lowers the deck The operating and washing pressure depends on the
weight of the deck The actuator also permits the extra pressure function Extra pressure is selected via the
button on the User interface controller
Brush rotation occurs only when the REV motor (M1) is driven by the Main machine controller (EB1)
following activation of the paddle
Transmission of motion from the gear motor to the brush occurs via an eccentric system which provides the
orbital movement
The system, once activated, uses the solution coming form the solution system, to wash the floor.
In case of REV motor overload, a safety system stops the brush to prevent continuous overload
If the overload takes place when the extra pressure function is on, the system automatically turns the extra
pressure function off If the overload persists, the brush stops
The overload is detected by monitoring the current flow sum on the REV motor. If the motor current reaches
the value stored in the parameter “VS1” and if the overload persists, the REV motor will stop following a
delay which varies on the basis of the extent of the overload
To start scrubbing again after a brush stop due to overload, turn the machine off Then restart the machine
In summary, operation of the REV motor (M1) requires the following conditions/inputs:
• Brush function on
• Forward paddle pressed
•
Battery level not in critical condition with flashing segments.
