Service Manual

ELECTRICAL SYSTEM
A5-1XL Lawn Tractor Service Manual
Purpose
The PTO (Power Take Off) switch is typically used to
turn on the Electric PTO Clutch and to function as part of
the safety interlock system.
The PTO switch is located on the steering tower, below
the steering wheel (Fig. A5 001).
Fig A5 001 PICT-4439
Fig A5 002 PTO switch test a
Cont.
OFF (IN) ON (OUT)
Cont.
Open
Open
Cont.
Cont.
Open
Open
1. Disengage the PTO, set the parking brake, turn the
ignition to the “OFF” position and remove the key.
2. Remove the gas tank from the steering tower.
3. Disconnect the wiring harness from the PTO switch.
4. Press in on the locking tabs, on each side of the
switch, and pull the switch out of the steering tower.
5. Verify that there is continuity between the
appropriate terminals in the ON and OFF positions
(Fig. A5 002).
When the PTO switch is pulled to the “ON” position,
contacts inside the switch electrically connects 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, current fl ows to the
electric clutch and it engages.
Electric PTO Switch
Location
How It Works
Testing
6. Replace the switch if your test results do not
correspond with those given in Fig. A5 002.
7. Mount the PTO switch back into the steering tower,
reinstall the wiring harness, and install the gas tank.