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The PTO wire got loose at the pulley, and the red wire got cut. I stripped the wire and taped it back together, and it worked, but i didn't secure it good enough, and it broke in the same spot. Taped it again, and secured it with zip ties... worked fine for about 2 minutes, then the blades shut off. Wire was still taped together fine. Checked voltage at the wire harness going into the PTO and get nothing when i pull the PTO knob with the key switched on, and with me in the seat.

There are two wires at the PTO harness... a blue/white one going into the back of the PTO knob, and a white one that goes into a little relay.

What's my next step at troubleshooting, or can i bypass something so the blades work? The seat safety switch has already been bypassed, as well as (i think) the clutch safety switch. I think the reverse safety switch is still hooked up.

Is there a quick way i can get power to the PTO, so i can finish mowing these leaves? Even if i had to manually plug and unplug the PTO clutch harness, i wouldn't mind. Could fix it right over the winter.

Think this is the wiring diagram:

http://i.imgur.com/APgrfAe.jpg

http://service.mtdproducts.com/Training_Education/769-02100/1000_1500_series_shop_manual.htm

if wire is broken close to PTO clutch you may have to remove clutch assy. to make repair by soldering wires together or using a butt connector to connect red wires. bypassing safety switches is not advised for Safety reasons.

thanks mark. i hooked the battery directly to the PTO switch harness, and it worked, so it's the relay, or PTO switch, or a safety switch somewhere, i suppose.

Sounds like a PTO switch problem.

tiresharkdbb said:

thanks mark. i hooked the battery directly to the PTO switch harness, and it worked, so it's the relay, or PTO switch, or a safety switch somewhere, i suppose.

Click to expand...

The only safety switch on the PTO is connected to the reverse sensor should you have one.
In most cases the shut off is on the magneto wire not the PTO.
The relay is a Std 30A headlamp job so you can pull it & jump the switched terminals by using a short wire with a male spade on both ends,
Just use some caution because if it is an ignition cut out relay ( most likely is ) and you send the +12V signal to the magneto you will kill it stone dead.