LS MT357 Link petal

   / LS MT357 Link petal #1  

Ak49er

New member
Joined
May 3, 2020
Messages
17
Tractor
LS MT3 57HP
Howdy , I have a 2022 LS MT357 and my link petal stopped working. Has this happened to anyone ? Thanks
 
   / LS MT357 Link petal #3  
What is a “link petal “ ?

It syncs the throttle to the hydrostatic pedals, increasing and decreasing it as they're pressed and let off on.

A bit like an automatic transmission on an automobile.

Or as I write I'm realizing you're ripping on the use of the word 'petal' over 'pedal;' I don't care, I'm still posting this.
 
   / LS MT357 Link petal #4  
I did notice you misspelled pedal but I wasn’t ripping you on anything I just wasn’t sure what you meant by link pedal. Hopefully you will get it figured out, maybe the linkage just somehow disconnected.
 
   / LS MT357 Link petal
  • Thread Starter
#5  
Been real busy just using hand throttle instead of link pedal
 
   / LS MT357 Link petal #6  
I did notice you misspelled pedal but I wasn’t ripping you on anything I just wasn’t sure what you meant by link pedal. Hopefully you will get it figured out, maybe the linkage just somehow disconnected.

I'm far too used to people being... well, people. 🤣
 
   / LS MT357 Link petal #7  
There should be a linkage from the pedal to the throttle linkage.... I'd start there to see if it's disconnected at the pedal or motor. If it's built like my Branson with linked pedal anyhow
 
   / LS MT357 Link petal #8  
Somethings on these tractors are "fly-by-wire" and some systems are mechanical. Check the physical linkages first, then check for fuses... or vise versa.
 
   / LS MT357 Link petal #9  
If it’s on the Hydrostatic version, touching the brake pedal releases it. Is the brake on just enough to trigger the sensor?
 
   / LS MT357 Link petal
  • Thread Starter
#10  
I adjusted the cruse control magnet on the foot petals and the the link petal worked for a bit then quit again or works spontaneously. Going to have to get a shop manual and trouble shoot a bit more. Might put tractor back in the shop and give it a wash job then try yo adjust again.
 
   / LS MT357 Link petal #11  
If you haven’t already you might want to try lubing the links
 
   / LS MT357 Link petal #12  
Why would the cruise magnet have anything to do with linked pedal? Don’t they operate independently?
 
   / LS MT357 Link petal
  • Thread Starter
#13  
I don't have any idea , I just adjusted the cruise control mags and link petal started working for awhile then stopped still trouble shooting it no loose wires everything runs smoothly. Doesn't sound like anyone has run into this problem yet ..

lube like spraying them down with wd40 they move nice and freely
 
   / LS MT357 Link petal #14  
On my tractor there is a physical linkage from the pedal to the throttle… now that may be different on the LS due to mine having mechanical injection and such. My pedal is always linked, always.
 
   / LS MT357 Link petal
  • Thread Starter
#15  
I need to get her washed and into the shop to take a closer look I guess guess
 
   / LS MT357 Link petal #16  
I don't know if it's the same issue, but the return spring (or tension spring) on my hydrostat pedals had broken. Basically you had to "center" the pedals manually to get them to a neutral location. Used a cheap tractor supply spring until my dealer ordered a new factory spring (under warranty). LS MT352H
 
   / LS MT357 Link petal #17  
My linked pedal kicks off when the brakes are pushed. Check that your brake pedal isn't hanging up and the brake lights are staying on.

Also the hydro pedals have to be in "neutral" or not pushed down for it turn on.

I haven't had any problems with mine, just a couple of ideas to check.
 
   / LS MT357 Link petal #18  
My linked pedal kicks off when the brakes are pushed. Check that your brake pedal isn't hanging up and the brake lights are staying on.

Also the hydro pedals have to be in "neutral" or not pushed down for it turn on.

I haven't had any problems with mine, just a couple of ideas to check.

Linked pedal, or cruise control? That's how my cruise works, not my linked pedal. Could be a different design though
 
   / LS MT357 Link petal #19  
Both on mine. Kind of annoying actually. Most the time I'll just throttle up to 1500-2000 rpm and do what I need to do, especially loader work. Helps keep the DPF burned out too.
 
   / LS MT357 Link petal
  • Thread Starter
#20  
Finally got a shop manual going to look through it and see how its all coupled up, I have cleaned and adjusted the CC mag, it worked for a bit then quit again. Checked the breaks made sure they weren't hanging up, petals are in the neutral position, springs taunt and snap them back nicely. Have it back at the shop now but I work away for 2 week on , then deer hunting so it will be awhile before I can mess with it. I just use the hand throttle most the time but for box blading ,snow blowing, plowing ,land plane the link pedal sure is nice.
 

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