Toro Z Master Z400 Series Service Manual page 137

ELECTRICAL
Location
The PTO Switch is located on the control panel on the
left side of the operator (Fig. 384).
How It Works
Contacts inside the switch electrically connect various
terminals in both "On" and "Off" position. When the
PTO is pulled out to the ON position, current flows to
the electric clutch and it engages. When the switch is
pushed in to the OFF position, current flows through the
PTO switch to the Park Brake switch as part of the circuit
used to ensure safe starting.
6
6-4
Fig 384 PICT-0190
Testing
1. Disengage the PTO, set the parking brake, and turn
the ignition to OFF. Remove the key.
2. Remove the 4 screws holding the control panel to
the fuel tank.
3. Disconnect the wiring harness from the PTO switch.
4. Press in the locking tabs, on each side of the switch,
and pull the switch out of the control panel.
5. Verify that there is continuity between the
appropriate terminals in the ON and OFF positions
(Fig. 385).
OFF (IN)
Y
Cont.
Y
Cont.
N
Open
N
Open
not used
Fig 385
Z Master Z400 Service Manual
ON (OUT)
Y
Cont.
Y
Cont.
N
Open
Continuity?
N
Y = Yes
N = No
Open
not used
PTO switch test