Nilfisk-Advance EcoFlex BR 1100 S Service Manual

Also see for EcoFlex BR 1100 SC: Instructions for use Instructions for use - original instructions Instructions for use Service manual

Contents

145Service Manual – Condor ™ EcoFlex™, BR 1100/1300 EcoFlex ™Wheel System, TractionFunctional DescriptionOverviewThe traction wheel system includes the drive wheel assembly, Curtis A1 speed controller and associatedcircuitry, drive wheel steering assembly and the drive pedal assemblyDrive Wheel AssemblyThe 1 75 HP Drive Motor Assemblydrives the Poly Front Wheel topropel the machineThe Drive Motor Assembly hasfour terminal connections; twoarmature connections (A1 and A2)and two field connections (F1 andF2) The speed controller providespulse-width-modulated (PWM)voltage and current output to themotor armature connections (A1and A2) to control the motor speed,and changes the polarity to thefield connections (F1 and F2) tocontrol the motor drive directionCurtis A1 Speed ControllerThe Curtis solid-state speed controller (A1) controls the speed anddirection of wheel drive motor according to the inputs it receivesfrom the A2 control board assembly The speed controller islocated to the left of the operator seat behind the electrical accesspanelThe speed controller is programmed for two maximum speedsetting modes, M1max and M2max• The M1max is the transport speed mode and is set at 100% ofthe total system’s speed potential• The M2max is the scrubbing speed mode and is set at 70% ofthe total system’s speed potentialNote that both of the speed settings (M1 and M2) can be changed(increased or decreased) from the original factory specificationsonly by using the hand-held Curtis programmer Refer to theMaintenance and Adjustments/Programming Vehicle SpeedChanges section for instructions on using the programmer forspeed setting changesDrive MotorAssemblyPoly FrontWheelCurtis A1SpeedController