Toro Z Master 500 Series, Service Manual, Page: 124 / 168

6-9 Z Master 500 Gas Series Service Manual
6
2. Using a multimeter, follow the procedures listed
below (Fig. 336).
Fig 336 brake switch
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.
Note: With a delay module in the system, there will
be a slight delay before the engine shuts
down after the operator vacates the seat.
Plunger Not Depressed Plunger Depressed
A/B Terminals – Closed
Circuit – Continuity
A/B Terminals – Open
Circuit – No Continuity
C/D Terminals – Open
Circuit – No Continuity
C/D Terminals – Closed
Circuit – Continuity
The seat switch is fastened to the bottom of seat base
on all models equipped with deluxe suspension seats
(Fig. 337).
Fig 337 DSC-2555
SEAT SWITCH
Purpose
Location
ELECTRICAL
A
B
C
D