DRIVE SYSTEMSERVICE MANUAL ENGLISHRazor™ 20 / 20T 9097065000(2)2009-06 33TROUBLESHOOTING (For Razor™ 20T)Open circuitPossible causes:There are bulky debris or cords under the machine or around the driving wheels (remove the debris).1.The motor is damaged (check the motor electrical input).2.The loor gradient is excessive (do not use the drive system on slopes with a gradient exceeding the speciications).3.There is a short circuit in the drive system electronic board harness (repair).4.The drive system electronic board is faulty (replace).5.The machine does not movePossible causes:The battery voltage is too low (charge the batteries).1.The drive paddle potentiometer is misadjusted or broken (adjust or replace).2.The speed adjuster is broken (replace).3.The drive system enabling microswitch is misadjusted or broken (adjust or replace).4.The drive system electronic board is faulty (replace).5.There is an open in the fuse (repair).6.The wiring harness is damaged (repair).7.The drive system motor carbon brushes are worn (replace).8.The drive system motor is faulty (replace).9.
