caution - Toro
caution - Toro
caution - Toro
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Cutting Deck Raise and Lower Switches<br />
The deck raise and lower switches are normally open<br />
proximity switches that are located under the console<br />
housing (Fig. 56). These identical switches are mounted<br />
in opposite directions so their circuit logic differs. The actuator<br />
for the switches is on the center deck lift/lower lever.<br />
The raise and lower switches are used in<br />
conjunction with the down latching relay to provide current<br />
to the PTO switch.<br />
6<br />
7<br />
5<br />
3<br />
4<br />
1<br />
2<br />
The deck raise switch is closed when the center deck lift/<br />
lower lever is either in the neutral (center) position or<br />
pushed to the lower (forward) position. If the center deck<br />
lift/lower lever is pulled to the raise (rear) position, the<br />
deck raise switch opens.<br />
The deck lower switch is closed when the center deck<br />
lift/lower lever is pushed to the lower (forward) position.<br />
If the center deck lift/lower lever is in either the neutral<br />
(center) position or the raise (rear) position, the deck<br />
lower switch remains open.<br />
8<br />
Once the down latching relay is energized by lowering<br />
the cutting deck, the cutting deck raise switch and diode<br />
D3 provide a latching circuit to keep the relay energized.<br />
9<br />
Testing<br />
1. Park machine on a level surface, lower cutting deck,<br />
stop engine, engage parking brake and remove key<br />
from the ignition switch.<br />
Figure 56<br />
10<br />
Electrical<br />
System<br />
2. Remove console cover and locate cutting deck raise<br />
or lower switch to be tested. Disconnect switch connector<br />
from machine wiring harness.<br />
1. Deck lower switch<br />
2. Deck raise switch<br />
3. Switch plate<br />
4. Lever bracket<br />
5. Flange nut<br />
6. Flange bolt (2 used)<br />
7. Tab plate<br />
8. Deck lift/lower lever<br />
9. Switch actuator<br />
10. Lock nut (2 used)<br />
3. Check switch continuity by connecting a multimeter<br />
(ohms setting) across the switch connector terminals.<br />
4. The raise switch should be closed (continuity) when<br />
the center deck lift/lower lever is in the neutral position.<br />
As the lift/lower lever is slowly pulled back, the raise<br />
switch should open (no continuity) after the lever has removed<br />
all free play (with no spool movement in lift/lower<br />
control valve) but before the deck is lifted.<br />
5. The lower switch should be open (no continuity)<br />
when the center deck lift/lower lever is in the neutral<br />
position. As the lift/lower lever is slowly pushed forward,<br />
the lower switch should close (continuity) before the lever<br />
reaches full forward travel.<br />
6. For switch adjustment procedure, see Cutting Deck<br />
Raise and Lower Switches in the Adjustments section of<br />
this chapter.<br />
7. Connect switch to wiring harness. Install console<br />
cover to machine.<br />
Groundsmaster 4100--D Page 5 - 35 Electrical System
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