Service Manual

GLOSSARY
Demystification Glossary 3 - 27
Switch, Reverse
Purpose
This switch works in the Key Choice™ Reverse
Operating System circuit when the mower (PTO) is
engaged.
How It Works
This single pole plunger type switch has two terminals.
When the unit is shifted in reverse while the mower
blade (PTO engagement lever) is engaged, the reverse
switch opens and will stop the engine, unless the
KeyChoice switch has been operated.
Testing
1. Disconnect the switch from the wiring circuit.
2. With a multimeter, check the continuity across the
terminals. There should be continuity.
3. Depress the plunger on the switch and check the
continuity across the terminals, there should be
NO continuity (Figure 41).
Figure 41
mvc-685
Switch, Seat
Purpose
The switch is in the safety circuit. If the engine is
running and the operator vacates the seat with either
PTO engaged or the parking brake off, the engine will
shut down.
Figure 42
MVC-391x
Figure 43 MVC-390x
Seat switch (ribbon type) used on 2000 and prior
models (Figure 42)
Seat switch (mushroom type) used on 2001 and later
models (Figure 43)