Cutting Deck Lift/Lower Switch
The lift/lower switch is a normally open proximity switch
that is closed when a lift lever is in the neutral position.
When a lift lever is moved to raise, the lift/lower switch
opens. Each lift lever is equipped with a cutting deck lift/
lower switch.
2
When the machine operator engages the cutting decks
(PTO switch ON and decks lowered), the cutting deck
lift/lower switch and circuit board diode D1--C provide a
latching circuit to keep the PTO relay energized (Fig.
1
18).
Operating the machine on uneven ground could
cause a cutting deck to raise enough to open a deck
position switch. The cutting deck lift/lower switch is de-
signed to keep the PTO relay energized in this situation
to maintain cutting deck operation.
3
Figure 16
1.
2.
3.
Lift/lower switch location (GM4700 shown)
Switch connector
Switch plate screw
Switch Testing and Adjustment
1.
Park machine on a level surface, lower cutting units,
stop engine, engage parking brake, and remove key
from the ignition switch.
GM 4700--D SHOWN
2.
3.
testing. Disconnect switch connector from machine wir-
ing harness.
Remove console cover from machine.
Locate cutting deck lift/lower switch that requires
5
4
4.
Check the continuity of the switch by connecting a
multimeter (ohms setting) across the switch connector
terminals.
3
2
5.
With the lift lever in the neutral position there should
1
be continuity across the switch terminals.
6.
Pull back on the lift lever enough to take up all free
playinthelever.Theswitchshouldopenbeforethelever
applies any pressure to the spool in the lift/lower control
valve.
Figure 17
1.
2.
3.
Lever support
Switch plate
Switch plate screw
4.
5.
Lift/lower switch
Thread forming screw
7.
by loosening the switch plate screw and moving switch
plate. After any adjustment, recheck switch operation.
Switch position can be adjusted for correctoperation
LIFT/LOWER
FROM PTO SWITCH
(PTO SWITCH ON)
SWITCH
(IN CENTER POSITION)
FRONT PTO
(DECKS 2, 3, 5)
FRONT DECK
POSITION
FRONT DECK
POSITION
(DECK LOWERED) (DECK LOWERED)
FRONT PTO
(DECKS 1,4)
TO GROUND
Figure 18
Groundsmaster 4500--D/4700--D
Page 5 -- 13
Electrical System (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4500 D, Toro Groundsmaster 4700 D |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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