Wheel System, Driving 128
Service Manual – SCRUBTEC R466 ... FOCUS II Micro Rider
Wheel System, Driving
Functional Description
The driving wheel system moves the machine forwards
The operator adjusts the operating speed with the accelerator (RV1) The reverse push button
are into
control panel
The driving wheel is connected to the steering system The electromagnetic brake is built into the drive system
motor and keeps the machine braked when the machine is off or stopped
An anti-skid system reduces the speed to a safe speed when turning and when the machine tilts laterally in
order to avoid sudden skidding, thus increasing machine stability in all conditions.
The driver's seat microswitch is located inside the driver's seat and the machine drive system is only enabled
if the operator is seated in the driver's seat
The function electronic board (EB1) checks the drive pedal is not pressed when the machine is turned on If it
is pressed an alarm is generated (see paragraph “Function electronic board alarm codes” in chapter “Control
system”) and the drive system is disabled
When the pedal returns to the rest position, the alarm is automatically deactivated (without having to turn
the machine off and on again)
When the drive pedal is pressed, the function electronic board (EB1) powers the electromagnetic brake to
release the wheel, then activates the driving wheel motor (M3) with a proportional voltage on the basis of the
pedal position The acceleration ramps and top speed can be set with the relevant parameters (see paragraph
“Display and change of parameters which can be set by the user” in chapter “Control system”)
Reverse is enabled when the reverse push button
is pressed The signal is sent by the display electronic
board (EB2) to function electronic board (EB1) like any other signal from a dashboard push-button
The automatic anti-skid system constantly detects lateral acceleration using an accelerometer installed in
function electronic board (EB1) If the lateral accelerometer detects a speed higher than the preset value (set
using the AMAX parameter, see paragraph “Display and change of parameters which can be set by the user”
in chapter “Control system”) the system reduces the speed so the lateral acceleration remains below this limit
The speed indicator
LED
indicates the system is automatically reducing the speed to below that con-
trolled by the accelerator pedal position