Know Your Machine 22Service Manual – Advenger, 2800ST, 3800ST, BR 755, BR 855
UNDERSTANDING CONTROL OF SQUEEGEE, SCRUB, AND RECOVERY SYSTEMS VIA MODES
Due to the unique One-Touch functions of the new Advenger / BR 755, 855 and ST, multiple systems are engaged via one action dened by the Mode that is chosen - Scrub
Mode, Vacuum Mode, Floor Finish Removal or Wand Mode. The following tables outline the various components of the systems that are controlled in tandem by pressing
a particular button or engaging the Drive Pedal in Forward, Neutral, or Reverse under normal machine operation. To bypass these systems, refer to the “Service Test
Mode” section.
Advenger / BR 755, 855
Mode
Operator
Position
Seat Switch
Status
Action Result
Scrub Mode Seated Closed
Press Scrub On
Squeegee lowers (24V to M3 for 4 seconds - adjustable.)
Scrub deck lowers (24V to M4 for 3 sec., then pulsed signal)
Press Foot Pedal
Forward
Vacuum motor circuit On
Scrub motor circuit On
Solution Solenoid On
Chemical Pump On if equipped
Press Foot Pedal
Reverse
Solution Solenoid Off
Chemical Pump Off if equipped
Squeegee raises (reverse 24V to M3 for 4 seconds)
Pulsed voltage to M4 deck actuator maintaining down position
Brush motor circuit On
Vacuum motor circuit off after 10 seconds continuous in reverse
Foot Pedal in Neutral
Brush motor circuit Off but Enabled
Vacuum motor circuit Off after 10 sec. but Enabled
Pulsed voltage to M4 deck actuator maintaining down position
Squeegee in down position
Press Scrub Off
Brush motor circuit Off
Scrub deck raises (reverse 24V to M4 for 3 sec.)
Squeegee raises after 10 sec. (reverse 24V to M3 for 4 seconds)
Vacuum motor circuit On for 20 seconds total
Solution Solenoid Off
Chemical Pump Off if equipped
Press Scrub Off Foot Pedal in
Neutral >10 sec.
Brush motor circuit Off
Scrub deck raises (reverse 24V to M4 for 3 sec.)
Squeegee raises (reverse 24V to M3 for 4 seconds)
Vacuum motor circuit Off
Solution Solenoid Off
Chemical Pump Off if equipped
Vac Mode Seated Closed
Press Vac/Wand On Squeegee lowers (24V to M3 for 4 seconds)
Press Foot Pedal
Forward
Vacuum motor circuit On
Press Foot Pedal
Reverse
Squeegee raises until Foot Pedal in Neutral or Forward again (reverse
24V to M3 for 4 sec.)
Vacuum motor circuit On for 10 seconds
Press Vac/Wand Off
Squeegee raises after 10 sec (reverse 24V to M3 for 4 seconds) *
Vacuum motor circuit On for 20 seconds total *
* If drive pedal in Neutral >10 sec, squeegee will raise and vac motor
circuit will be Off immediately with no delay.
Press Vac/Wand Off Twice
Squeegee raises immediately (reverse 24V to M3 for 4 seconds)
Vacuum motor circuit Off immediately
Wand Mode* Standing Open
Press Vac/Wand On
Squeegee lowers (24V to M3 for 4 seconds)
Vacuum motor circuit On
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