Toro Groundsmaster 5900 Series Service Manual page 389

Testing
Groundsmaster ® 5900 & 5910
16227SL Rev B
The cutting deck position switches and their circuit wiring can be tested as
TEC inputs using the InfoCenter Display (see
If testing determines that the switch and its circuit wiring are not functioning
correctly, proceed with the following test procedure:
1. Park machine on a level surface, lower cutting decks, stop engine and
remove key from the key switch.
2. Check to make sure the position switch is adjusted correctly (see
Deck Position Switch Adjustment (page
and switch bracket is not loose or damaged.
3. Disconnect position switch that requires testing from machine wire harness.
4. Check the continuity of the switch by connecting a multimeter (ohms setting)
across the switch connector terminals.
5. With the cutting unit in the lowered position, there should be continuity (zero
resistance) across the switch terminals.
6. Raise the cutting unit. There should be no continuity (infinite resistance)
across the switch terminals.
7. Replace switch as needed. Reconnect switch to machine wire harness.
8. If the switch tests correctly and a circuit problem still exists, check the wire
harness (see Appendix A (page
9. Check and adjust switch position as necessary (see
Switch Adjustment (page
InfoCenter Display (page
6–46)). Make sure the sensing plate
A–1)).
6–46)).
Page 6–127
6–9)).
Cutting
Cutting Deck Position
Electrical System: Component Testing