Toro Groundmaster 31900, Service Manual

Page: 229 / 355

Windshield Washer/Wiper Switch (Model 31903 and 31909)
POSITION CLOSED
CIRCUITS
OFF 1 + 2
WIPER 2 + 3
WASHER 2 + 3, 5 + 6
The windshield washer/wiper switch is located in the cab control panel cover.
The windshield washer/wiper switch controls the operation of the windshield
wiper and the washer pump. The windshield washer/wiper switch receives power
from fuse F−3 (20 Amp) in the cab fuse block.
Testing the Windshield Washer/Wiper Switch
1. Park the machine on a level surface, lower the cutting unit (or attachment),
engage the parking brake, set the key switch to the O
FF
position and remove
the key from the key switch.
2. Remove the switch plate from the control panel cover.
3. Disconnect the wire harness electrical connector from the windshield
wiper/washer switch. Check the switch and the harness connector for
damage or corrosion and clean or repair if necessary.
4. Use a multimeter (ohms setting) and the preceding table to determine
whether continuity exists between the various terminals for each switch
position.
5. Replace the windshield wiper/washer switch if necessary.
6. If the windshield wiper/washer switch testing is correct and a circuit problem
still exists, check the wire harness; refer to Appendix A (page A–1) .
7. Connect the wire harness to the windshield wiper/washer switch.
8. Install the switch plate.
Groundsmaster ® 3200, 3300 and 3310 Page 6–37 Electrical System: Testing the Electrical Components
19240SL Rev A