caution - Toro

Wing Deck Position Switches
The wing deck position switches on the Groundsmaster
4100--D are attached to the center deck housing (Fig.
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 Figure
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 hydraulic
valve solenoid and keeps that wing deck from operating.
1
1. Switch cover
2. Position switch
Figure 53
3. Switch bracket
3
2
Testing
BLUE
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.
WHITE
BLACK
RED
2. Remove switch cover from deck to allow access to
switch that requires testing. Disconnect switch from wiring
harness.
NOTE: Deck Proximity Switch Adjustment Tool
(TOR4095) can be used for switch testing and adjustment.
3. Ground switch connector terminal for black wire and
apply 12 VDC to switch connector terminal for red wire.
POSITION SWITCH
1
Figure 54
CONNECTOR
0.188”
(4.8 mm)
4. Using a multimeter, verify that switch connector terminal
for blue wire has 12 VDC and terminal for white
wire has 0 VDC.
5. Place a metal object near sensing area of switch (opposite
end from wires). Ground switch connector terminal
for black wire and apply 12 VDC to switch connector
terminal for red wire.
6. Using a multimeter, verify that switch connector terminal
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 Adjustments
section of this chapter.
8. Install switch cover to deck.
3
1. Position switch
2. Actuator tab
2
Figure 55
3. Wing deck link
Electrical System
Page 5 - 34
Groundsmaster 4100--D