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Exmark LZ PTO disengages when brake is released

#1

R

rmaccy

Hi,, need help with my 2004 LZ27KC724. I can engage the pto with the brake on but as soon as I release the break the pto disengages. I've disconnected the seat safety switch and tried jumping the wire. The brake switch seems to work correctly ( mower won't start if not on, shuts off if break on and handles are pulled in, etc) I've check for wire damage..

What next??


#2

B

bertsmobile1

They put relays in there to stop people disconnecting the seat switch.
The entire safety circuit is an earth one so any place a wire contacts the mower frame it will kill the engine.


#3

R

rmaccy

OK,, an update,, as of now it's working. Here's the joke. On the clutch switch there was a jumper from the start control to the clutch control, but what do I know?? I have no experience with this stuff.. But after testing the brake switch and a few others, and getting dizzy going over the schematics that jump just didn't make sense, but the mower had worked for years, so I kept looking, gave up and cut that jumper.. The mower works, so now I don't know if a different switch or relay quit working or one that didn't has started to...


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