Toro Groundsmaster 4500-D Series Service Manual page 324

Switch Testing (continued)
Switch Adjustment
Electrical System: Component Testing
Note: Before disconnecting the deck position switch for testing, the switch and
its circuit wiring should be tested as a TEC electrical input using the InfoCenter
Display (see InfoCenter Display (page
position switch and circuit wiring are functioning correctly, no further position
switch testing is necessary. If, however, input testing determines that the deck
position switch and circuit wiring are not functioning correctly, proceed with the
following deck position switch testing procedure.
1. Park machine on a level surface, lower cutting decks, engage parking brake
and stop engine. Remove key from ignition switch.
2. Disconnect deck position switch that requires testing from machine wire
harness.
3. Check the continuity of the switch by connecting a multimeter (ohms setting)
across the switch connector terminals.
4. With the cutting deck in the lowered position, there should be continuity
across the switch terminals.
5. Raise the cutting deck. There should be no continuity across the switch
terminals.
6. Replace position switch if testing determines that it is faulty.
7. After testing is complete, connect wire harness electrical connector to the
position switch.
Adjust switch to have 1.6 mm (1/16 in) clearance between switch and sensing
plate on the lift arm.
6–8)). If input testing verifies that the deck
Page 6–42 Groundsmaster ® 4500-D/4700-D
19245SL Rev A