Peddle Resistance on HST

   / Peddle Resistance on HST #1  

StuartT

Member
Joined
Mar 5, 2019
Messages
25
Location
Apache Junction, AZ
Tractor
Kubota L2800 HST
My 2009 L2800 is developing a resistance when depressing the FWD/REV peddle in the forward direction. Once it gets past approximately 25% of movement, it becomes easier up through full peddle, but that initial resistance is getting worse. If this sounds like a transmission problem, it is going to the dealer. But if it is more likely to be binding linkage or a dry peddle pivot shaft or such, I would feel comfortable probing deeper myself. Any one have any experience with or thoughts on this?
 
   / Peddle Resistance on HST #2  
Time to oil the pivot mechanism. Had the same issue on my Kubota F Series diesel front mount mower but mine was backing up, not going forward and all it needed was some oil on the pivot and a shot of grease to finish it up. My mower has a grease fitting on the pivot that I somehow missed.
 
   / Peddle Resistance on HST
  • Thread Starter
#3  
That is encouraging. I lube the tractor fairly regularly but the peddle pivot arm is buried up in the linkage and I could have easily missed it last time (or multiple times for that matter). I'll crawl under there and give it a shot or two. Thanks for the suggestion.
 
   / Peddle Resistance on HST #4  
That is encouraging. I lube the tractor fairly regularly but the peddle pivot arm is buried up in the linkage and I could have easily missed it last time (or multiple times for that matter). I'll crawl under there and give it a shot or two. Thanks for the suggestion.
It's easy to overlook the 3 zerks underneath, one each for clutch, brake and throttle pedals - but they're there. I have to use a flashlight to find mine, but they're there and they do need grease every so often.
 
   / Peddle Resistance on HST #5  
The top one in the photo, is the hst pedal, the zerk is facing more forward vs. the other 2 which face more downward...
 

Attachments

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   / Peddle Resistance on HST
  • Thread Starter
#6  
Whoa, that is a surprise. I have been missing that top one. Nothing like a picture, thank you very much Mr. Old and TIred. That tractor will be in the garage today!

You started the ball rolling Gem99ultra. My thanks go to you too.
 
   / Peddle Resistance on HST #7  
Before you grease, you might want to pressure wash those joints, clean out all the old gunk that might be slowing stuff up. Then grease. You can find the fittings a lot easier also. Just serviced my BX and L, amazing what a wash job will do, and they were not that dirty.
 
   / Peddle Resistance on HST
  • Thread Starter
#8  
I did pressure wash before pulling it into the garage yesterday, and I was wrong about the grease fittings. Once I saw them, I knew that I have been shooting all three each time I serviced the tractor. So I followed all the linkage paths and when I removed a cover plate above the floor deck bolted to the side of the console (right next to the peddle), I found a bearing that travels in a "V" shaped plate, moving up one side in forward and the other in reverse. The bearing was frozen and heavily scored, creating the resistance I have been experiencing. It's purpose is to depress a switch up under the console when you are not moving and to release the switch when moving forward or backward. Not sure what the switch does.

Need to order a new 'V" plate and bearing today.
 
   / Peddle Resistance on HST
  • Thread Starter
#10  
Here ya go. If you can help with part numbers, that would be great. I need the "V" plate and the roller bearing. I tried to grease it up by that only helped a little bit.
20250501_133051.jpg
 

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