Testing - Toro Z580 DFI Z Master Service Manual

ELECTRICAL

Testing

1. Disengage the PTO, set the parking brake, and turn
the ignition to OFF and 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 appropri-
ate terminals in the ON and OFF positions (Fig.
516).
OFF (IN)
6
not used
6-4
ON (OUT)
Y Y
Cont. Cont.
Y Y
Cont. Cont.
N N
Open Open
N N
Open Open
not used
Fig 516 PTO switch test
6. Replace the switch if your test results do not cor-
respond with those given in Fig. PTO switch test.
7. Mount the PTO switch back into the control panel
and reinstall the wiring harness (Fig. 517).
NC NC
NO
COM COM
Fig 517
Z580/Z589 DFI Z Master Service Manual
Pink/Black
NC
NO
Grey
COM
Orange
PTO Clutch switch b
Brown