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FLJohnDeere420 · 07-04-2009, 03:37 PM

I've been having a problem with my front PTO

. When I start the tractor (some of you would call it a mower) the PTO will start fine and off I go mowing like a champ. Recently if I turn the PTO off or if the motor freakishly stalls I can't get the PTO to engage, but if I try again the next day it engages and off I go.

I've checked the power going to the PTO clutch and it has 12.5 volts. My dad and I think it might be a safety switch, maybe gets rattled and shuts the motor down. Maybe its stuck and wont let the PTO re-engage. I'm not sure if thats really it or not, I looked all over for the safety switches and thus far I have only found the one for the starter (making sure the tractor isn't in fwd or reverse).

Any hints will be gratefully accepted.

Here are the specs:
Model: JD 420
Motor: Onan (I think 20 or 22 hp)
Deck: 60"

Thanks and look forwards to the ideas.

07-04-2009, 03:37 PM	#1 (permalink)
FLJohnDeere420 New Member Join Date: Jun 2009 Posts: 4	PTO wont engage I've been having a problem with my front PTO . When I start the tractor (some of you would call it a mower) the PTO will start fine and off I go mowing like a champ. Recently if I turn the PTO off or if the motor freakishly stalls I can't get the PTO to engage, but if I try again the next day it engages and off I go. I've checked the power going to the PTO clutch and it has 12.5 volts. My dad and I think it might be a safety switch, maybe gets rattled and shuts the motor down. Maybe its stuck and wont let the PTO re-engage. I'm not sure if thats really it or not, I looked all over for the safety switches and thus far I have only found the one for the starter (making sure the tractor isn't in fwd or reverse). Any hints will be gratefully accepted. Here are the specs: Model: JD 420 Motor: Onan (I think 20 or 22 hp) Deck: 60" Thanks and look forwards to the ideas.