LA 175 PTO Cluch Issues

   / LA 175 PTO Cluch Issues #1  

SOS

Silver Member
Joined
Dec 19, 2006
Messages
232
Location
Fredericksburg, VA
Tractor
NH 45 A (2006)
I have a 4 year old LA 175 and use it pretty heavy. The other day I was mowing for about 3 hours and when I was backing up the blades suddenly slow up and almost stopped. So I cooled it off and checked the blades and retried it and when I turned on the blades it sounded like a helicopter starting with a slow progress start and they blades never got up to speed. Since then I have rechecked it and the same. What do you think? :confused::confused:
 
   / LA 175 PTO Cluch Issues #2  
I think you are likely right, but it also could be a frozen belt tensioner arm that is binding or the spring came off. Most belt slippage is accompanied with the smell of burning belts, but if the tensioner is not getting tight, you could just be slipping a bit. I'd check the drive belt to make sure it is tight and have somebody sit in the seat and energize the PTO while watching the clutch (stay well back from the deck, of course). I've found PTO wires tend to break from vibration and have repaired mine several times. If the plug to the PTO is loose, or a wire not making good contact, it could be your problem. BTW: You don't have to have the engine running to energize the PTO, so you can do that with someone sitting in the seat and not be afraid to put your hand in and check the belt to see if you can make the clutch slip. As you surmised, it's probably a failing PTO, but there are several checks you can make to be sure.
 
   / LA 175 PTO Cluch Issues
  • Thread Starter
#3  
Well you were right Jim, I took the deck off and the belt tensioner spring's end was broke off. Thanks for your insight. :drink:
 
   / LA 175 PTO Cluch Issues #4  
Wow! Good job.:thumbsup: Springs are a bunch cheaper than PTO clutches. You can probably find a low-cost replacement at the hardware store if you don' have a JD dealer close-by or they want too much for one.
 

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