Toro Greensmaster TriFlex 3400 - Seat Switch

Greensmaster 3300/3400 Page 6 -- 35 Electrical System
Seat Switch
The s eat switch is normally open and closes when the
operator is on the seat. If the Functional Control Lever
is moved out of neutral (neutral switch opens) and the
operatorraisesout ofthe seat,the enginewill stop.The
seat switch and its electrical connector are located di-
rectly under the seat (Fig. 40).
Testing
1. Park machine on level surface, lower cutting units,
stop engine, apply parking brake and remove key from
ignition switch.
2. Before disconnecting the seat switch for testing, the
switch and its circuit wiring should be tested as a TEC
electrical input using the Diagnostic Display (see Diag-
nostic Display in the Troubleshooting section of this
chapter).Ifinput testingverifiesthat theseatswitchand
circuit wiring are functioning correctly, no further seat
switchtestingisnecessary.If,however,inputtestingde-
termines that the seat switch and circuit wiring are not
functioning correctly, proceed with the following seat
switch testing procedure.
3. Make sure ignition switch is in the OFF position.
4. Disconnectseatswitchwireharnessconnectorfrom
machine wire harnessat rear ofoperatorseat (Fig. 41).
5. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the seat switch wire
harness connector terminals.
6. With no pressure on the seat, there should be no
continuity (open) between the harness terminals.
7. Press directly onto the seat switch through the s eat
cushion. There should be continuity (closed) between
the harness terminals as the seat cushion approaches
the bottom of its travel.
8. If continuity checks determine faulty seat switch op-
eration,checkseatswitchwireharnessforproblemsbe-
fore replacing seat switch.
9. Iftheseatswitchtestscorrectlyandacircuitproblem
still exists, check machine wire harness (see Electrical
Schematicand WireHarness Drawingsin Chapter10 --
Foldout Drawings).
10.After seat switch testing is complete, connect seat
switchwireharnessconnectortomachinewireharness.
1. Operator seat
2. Seat switch
3. Cap screw (2 used)
4. Seat switch harness
5. Flat washer (4 used)
6. Cap screw (4 used)
Figure 40
1
2
3
4
5
6
STANDARD SEAT ASSEMBLY SHOWN
1. Operator seat 2. Seat switch connector
Figure 41
1
2
Electrical
System