Wing Deck Position Switches
The wing deck position switches on the Groundsmaster
53)and are normally open. The wing deck position switch is a powered proximity switch that incorporates an internal reed switch and relay (see schematic in Fig- ure 54). The actuator for the position switch is bolted to the wing deck link (Fig. 55).
When a wing deck is lowered, the actuator tab on the wing deck link is positioned close to the position switch causing the switch to close. The closed switch allows current flow to the wing deck hydraulic valve solenoid and allows that wing deck to operate.
When a wing deck is raised, the actuator tab is moved away from the position switch and the switch opens. The open switch prevents current flow to the wing deck hy- draulic valve solenoid and keeps that wing deck from op- erating.
Testing
1.Park machine on a level surface, lower cutting deck and raise wing decks. Stop engine, engage parking brake and remove key from the ignition switch.
2.Remove switch cover from deck to allow access to switch that requires testing. Disconnect switch from wir- ing harness.
NOTE: Deck Proximity Switch Adjustment Tool (TOR4095) can be used for switch testing and adjust- ment.
3.Ground switch connector terminal for black wire and apply 12 VDC to switch connector terminal for red wire.
4.Using a multimeter, verify that switch connector ter- minal for blue wire has 12 VDC and terminal for white wire has 0 VDC.
5.Place a metal object near sensing area of switch (op- posite end from wires). Ground switch connector termi- nal for black wire and apply 12 VDC to switch connector terminal for red wire.
6.Using a multimeter, verify that switch connector ter- minal for blue wire has 0 VDC and terminal for white wire has 12 VDC.
7.Replace switch as needed. For switch adjustment procedure, see Wing Deck Position Switches in the Ad- justments section of this chapter.
8.Install switch cover to deck.
3 |
1 |
2 |
Figure 53
1. | Switch cover | 3. Switch bracket |
2. | Position switch |
|
| BLUE |
| WHITE |
| BLACK |
| RED |
POSITION SWITCH | CONNECTOR |
|
Figure 54
1
0.188”
(4.8 mm)
2
3 
|
| Figure 55 |
1. | Position switch | 3. Wing deck link |
2. | Actuator tab |
|
Electrical System | Page 5 | Groundsmaster |
