Testing; Purpose; Location; How It Works - Toro Lawn-Boy TimeCutter Z Series Service Manual

Testing

1. Disconnect the switch from the wiring harness.
2. Using a VOM or test light, check first to ensure
there is no continuity between either terminal,
plunger out.
3. With the plunger pushed in, there should be
continuity between the terminals.
Switch, Seat

Purpose

The switch is in the safety circuit. If the engine is
running and the operator vacates the seat with either
the PTO engaged or the parking brake off, the engine
will shut down.

Location

The seat switch is fastened to the bottom of the seat
base (Figure 92).
Figure 92
TimeCutter Z Service Manual
ELECTRICAL SYSTEM

How it Works

When the seat is vacated, the switch is open and there
should be NO continuity between the two terminals.
When the seat is occupied, the switch closes and there
should be continuity between the two terminals (Figure
93).
Testing
1. Disconnect the switch from the wiring harness.
2. With a multimeter, check the continuity between
the two terminals of the switch. There should be
NO continuity.
3. With weight or pressure on the seat, check the
continuity again on the two terminals of the switch.
There should be continuity.
mvc-194
Figure 93
mvc-390
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