Toro Z Master 500 Series, Руководство по обслуживанию, Страница: 120 / 168

6-5 Z Master 500 Gas Series Service Manual
6
The PTO switch is located in the control panel on the left
side of the operator (Fig. 328).
Fig 328 DSC-3150
When the PTO switch is activated, mechanical
connections are made between various terminals. One
terminal is connected to the wire that goes directly to the
electric clutch. When the PTO is pulled out to the “ON”
position, voltage flows to the electric clutch which causes
it to engage. When the switch is pushed in to the “OFF”
position, current flows through the PTO switch to the
Park Brake switch to complete the safety circuit to start
the unit.
6. Replace the switch if your test results do not
correspond with those given in Figure 329, above.
7. Mount the PTO switch back into the control panel
and reinstall the wiring harness.
Fig 329 PTO switch test gas
Cont.
OFF (IN) ON (OUT)
Open
Cont.
Open
Y Y
N N
1. Disengage the PTO, set the parking brake, and turn
the ignition to the “OFF” position. 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. 329).
ELECTRICAL
Location
How It Works
Testing
Continuity? Y = Yes N = No