6-9Z Master 597 Diesel Series Service Manual
6
ELECTRICAL
Fig 356 DSC-2555
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 disengaged, the
engine will shut down.
Note: There is a delay module in the system; there
will be a slight delay before the engine shuts
down after the operator vacates the seat.
Purpose
SEAT SWITCH
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 (Fig.
357).
Fig 357 DSC-2556
1. Disconnect the switch from the wiring harness.
2. Using a VOM or test light, check rst to ensure there
is no continuity between either terminal, plunger out.
3. With the plunger pushed in, there should be
continuity between the terminals
The seat switch is fastened to the bottom of seat base
(Fig. 356).
Location
Testing
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