X540 PTO problems.. HELP

   / X540 PTO problems.. HELP #1  

VTtractorguy

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Jun 21, 2006
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Hello, my friends.

My X540 currently has 160 hours on it. I'ts three years old. Ever since new, whenever I engaged the PTO it would stall, or almost stall the engine (even at full RPM.) The engagement seemed awfully violent to me even though numerous dealers (and I called about five) said it was normal. To keep the engine from stalling, I'd have to blip the choke simultaneously so it can recover. Again, the dealers said one has to do that :confused2:

Well last fall, the PTO (or something in that area) started to make a racket Loud whirling, whining metallic sound shortly thereafter, followed by a loud rattle. It would even do this when not engaged. The rate of the sounds would go up and down with the engine RPM. Off to the dealer it went where they, sure enough, replaced the PTO. Everything was great no weird sounds and much smoother PTO engagement. It seems to operate the way one would expect - slight drop in engine speed and no need for the choke upon engagement. This new PTO has maybe 10 - 15 hours on it.

The past few days I am starting to hear the initial whirling, whining metallic sounds again! (no loud rattles yet.) Again, this is when not engaged. I poked around up there (engine off :)) and all I can guess is that it is either the PTO again or the drive pulley that sits on top of the PTO. I looked high and low for a grease point somewhere up there and there doesn't appear to be one. The manual makes no reference, so it must be a sealed unit.

Has anyone else had this problem on the x500 series or any thoughts on what it may be? This gives me no confidence for a tractor that only has 160 hours on it, two PTOs and out of warranty next spring.
 
   / X540 PTO problems.. HELP #3  
http://www.tractorbynet.com/forums/john-deere-lawn-garden/175583-john-deere-345-power-take.html

This is a thread showing the repair, assuming it is the clutch. Mine's still working fine after the repair.

BTW, try this for engagement: Engine running at idle, not cold and limping but running OK at idle without choke. Now, fully activate the choke, so you hear it stumble just a little bit, then deactivate the choke, and engage the electric clutch simultaneously. This works smoothly for me.
I think the engine is jetted too lean at idle, and the governer can't cope.
 
   / X540 PTO problems.. HELP
  • Thread Starter
#4  
http://www.tractorbynet.com/forums/john-deere-lawn-garden/175583-john-deere-345-power-take.html

This is a thread showing the repair, assuming it is the clutch. Mine's still working fine after the repair.

BTW, try this for engagement: Engine running at idle, not cold and limping but running OK at idle without choke. Now, fully activate the choke, so you hear it stumble just a little bit, then deactivate the choke, and engage the electric clutch simultaneously. This works smoothly for me.
I think the engine is jetted too lean at idle, and the governer can't cope.

Jim:

Thanks so much for that link! I appreciate it. If I decide to keep this tractor beyond the warranty and the PTO fails, that will help me do the work myself.

Also, I just went out and tried your method of engaging the PTO at idle with a quick blip of the choke. BRILLIENT! It engages flawlessly without any engine stall. I'm surprised JD doesn't have that in the manual. It's much gentler on the whole system. How did you learn that?

Best,

Stewart
 
   / X540 PTO problems.. HELP #5  
Trial and error most likely. Glad it works for you!
 

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