Service Manual

6-9Z Master 500 Gas Series Service Manual

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