Toro Groundsmaster 300 Series Service Manual page 182

Plunger Type Switch (S/N 30001 and UP) (Fig. 29)
1. Remove instrument cover and disconnect nega-
tive (–) battery cable from battery.
2. Pivot seat forward and secure with support rod to
prevent it from falling.
3. (4WD units only) Remove (4) flange screws and (2)
locknuts securing sealing plate to frame above fuel tank.
Remove sealing plate.
4. Remove boot from button end of seat switch. Keep
boot for installation later. Disconnect seat switch wiring
connector.
5. Remove top jam nut securing seat switch to mounting
bracket and remove switch.
6. Install new seat switch to support bracket. Adjust
switch height so it is 3/32" (2.4 mm) below top of spring
pin. Tighten jam nuts to 75 in-lb. Install rubber boot.
IMPORTANT: Threads on seat switch will be dam ­
aged if jam nuts are over-tightened.
7. Carefully lower seat, but do not sit on, or apply
pressure to the seat. There should be a slight gap
between the switch and seat plate.
8. Connect a continuity tester or ohm meter to switch
connector. With seat in down position and no one on
seat, the switch circuit should have no continuity. If there
is continuity, check switch installation. If there is no
continuity, go to next step.
9. Set on the seat. The seat switch should have conti-
nuity. If there is no continuity, check switch installation.
If there is continuity, go to next step.
10. Push switch connectors together.
11. (4WD units only) Install sealing plate to frame above
fuel tank.
12. Connect battery cable and install instrument cover.
Repairs
1. Seat switch
2. Seat support bracket
3. Connector
Page 6 - 36
Figure 29
(S/N 30001 and UP)
4. Spring
5. Pin
Groundsmaster
®
300 Series