Toro Groundsmaster 4300-D Service Manual page 280

Testing the Engine Speed Switch (continued)
Electrical System: Testing the Electrical Components
Circuit Logic Table
Switch Position
D
ECREASE
O
FF
I
NCREASE
Note: The engine speed switch terminals 4, 5, and 6 are not used on the
Groundsmaster 4300-D machines.
8. Replace the engine speed switch if testing determines that the switch is
damaged.
9. If the engine speed switch testing is correct and a circuit problem still exists,
check the wire harness; refer to the Electrical Schematic and Wire Harness
Drawings/Diagrams in
10. After you complete the testing, connect the wire harness connector to the
engine speed switch.
11. Secure the control arm covers to the machine; refer to
Control Arm (page
Normal Circuits
2+1
None
2+3
Appendix A (page A–1).
6–24).
Page 5–56
Other Circuits
5+4
None
5+6
Assembling the
Groundsmaster ® 4300-D
16226SL Rev C