Lawn-Boy Sens-A-Speed; Operation; Handle Disassembly, Zone Start Models - Toro 20330 - Low Wheel Walk Power Mower Service Manual

Lawn-Boy Sens-a-Speed

A. Top bail
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.
WPM Drive Systems Manual
HANDLES AND CONTROL CABLES
A
Fig 245 DSC-4864a
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
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-a-
Speed cable (Fig. 246).
Fig 246 DSC-4869a
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