Scrub System, BOOST
®
89Service Manual – SCRUBTEC R466 ... FOCUS II Micro Rider
Scrub System, BOOST
®
Functional Description
The BOOST
®
system can be started by the operator.
The main part of the system is the vibrating deck, the motor with an eccentric transmits the vibration needed
to cause the scrub of the pad on the oor to be cleaned.
A series of vibrator isolator deck dampen vibration on the machine.
The BOOST
®
deck is mounted on a “magic deck” pantograph system with an electrical actuator and gas spring.
The “magic deck” system lets the brush deck traverse sideways and the steering system turn thanks to a rack.
The “magic deck” system also traverses the deck to the side if it collides with an obstacle.
The electric actuator, with limit microswitches, lifts and lowers the deck. The working pressure and washing
is provided by the weight of the headboard. The operating and washing pressure depends on the weight of the
deck. The actuator and gas spring provide extra pressure function. The extra pressure function can be selected
with the specic button on the dashboard.
The system BOOST
®
started when the brush motor are activated by the function electronic board when the
pedal is pressed.
The BOOST
®
system uses the solution to wash the oor.
In case of brush motor overload, a safety system stops the brushes after about one minute of continuous over-
load. The overload is shown by the three battery warning leds ashing simultaneously.
The overload is detected monitoring the sum of current ow on the motors. The current is measured by a volt-
age drop verication across the brush system fuse (F1). If the voltage drop become over the value stored in the
“VS2” parameter (default = 70 mV), the 3 battery leds start ashing simultaneously and if the overload persist,
after a variable delay depending on the overload amount, the motors will stop.
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 brushes stop.
To start scrubbing again after a brush/pad-holder stop due to overload, stop the machine by turning the igni-
tion key to “0”. Turn on the machine by turning the ignition key to “I”.
In summary, the brush motor running needs the following conditions/inputs:
• Seat microswitch closed
• Brush function enabled
• Drive pedal pressed
• Battery level not in red light blinking condition.
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