Toro 20330 Service Manual - Page 129

Lawn-Boy Sens-a-Speed HANDLES AND CONTROL CABLES On blade clutch models, the engine on and off is controlled by a switch on the left hand handle. The bail engages and disengages the blade. The Sens-a-Speed A handle controls the self propel the same way as on a zone start model. Handle Disassembly, Zone Start Models 1. Loosen the cable clamp and disconnect the Sens-aSpeed cable (Fig. 246). A. Top bail Fig 245 DSC-4864a The Lawn-Boy Sens-a-Speed handle is made in two forms, zone start and blade clutch. The basic function is the same but the addition of the blade clutch mechanism makes the handle for those models a little more complex. Operation The top mounted bail is the engine stop control on zone start models and the blade control on blade clutch models. On a zone start model, pull the top bail down and hold to keep the engine running. The Sens-a-Speed handle telescopes and as it is depressed tensions the transmission drive belt. To operate this keep your elbows at your sides, hold your hands straight out in front of you and walk. If you want to go faster, walk faster. Do not push the Sens-a-Speed handle down. That will activate the drive too aggressively and the mower will jump forward. Fig 246 DSC-4869a WPM Drive Systems Manual 7-9