Service Manual

ELECTRICAL
8-2 36” & 40” Toro GrandStand Service Manual
8
Power Take Off (PTO) Switch
Purpose
The Power Take Off (PTO) Switch is used to turn on the
Electric PTO Clutch and function as part of the safety
interlock system.
How It Works
The PTO switch has 3 positions: Fully depressed
(OFF), a middle detent (RUN) and a momentary full
out (START). When the PTO switch is pulled out to the
“START” position, contacts inside the switch electrically
connect various terminals. Those terminals allow voltage
to ow to the electric clutch which causes it to engage.
Location
The PTO switch is located on the control panel (Fig.
725).
Fig. 725 DSCN-2194a
Testing
1. Disengage the PTO, set the parking brake, turn the
ignition to OFF and remove the key.
2. Disconnect the wire harness from the PTO switch.
3. Press in on the locking tabs on each side of the
switch and pull the switch out of the control panel.
4. Verify that there is continuity between the appro-
priate terminals in the ON and OFF positions (Fig.
726). Use diagram below.
5. Replace the switch if your test results do not cor-
respond with those given in the diagram below (Fig.
726).
Fully
Depressed
“OFF”
Middle Detent
“RUN”
Momentary
Full Out
“START”
1-7 Continuity 1-7 No Continuity 1-7 No Continuity
1-4 No Continuity 1-4 Continuity 1-4 Continuity
3-6 No Continuity 3-6 No Continuity 3-6 Continuity
Fig. 726 IMG-1193a
7
4
1
3
6