Seat Switch; Purpose; How It Works; Testing - Toro 74161 Service Manual

ELECTRICAL SYSTEMS

Purpose

To sense when the operator is in position on the seat.

How It Works

The seat switch is mounted to a spring loaded link so
that the switch contacts are open when there is no
operator on the seat.
When the operator is in position, the linkage allows the
switch plunger to extend closing the contacts.

Testing

With the seat switch removed from the unit, connect an
ohmmeter across the contacts. When the plunger is
extended, the meter should show continuity. When the
plunger is pushed in, the meter should show open
circuit.
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Seat Switch

Mid-Mount Z Service Manual