L2501 HST Safety Adjustment?

[jimh406]

My L2501 is sometimes hard to get to start. I know it’s the HST Safety switch. Some people have posted that theirs was out of adjustments on other Ls. I took a good look and couldn’t seem to find an adjustment. I sprayed down the switch and it started. Shortly after it refused to start, so I sprayed it down with WD40 again. So far that seems to be ok.

If you have an L2501, did you find an adjustment? If you don’t, but have an L, where did you find your adjustment and how did you do it?

 

[Roadworthy]

I'm not sure what HST adjustment you seek. The treadle lever must be in a neutral position to start, that is neither forward or reverse. If not properly set it can prevent starting. Mine doesn't care what gear is selected with the shifter but it does require me to push in the clutch to start.

 

[BigG]

You need the Work Shop Manual which you can find on line for free. Then go to page 3-S12.

 

[chim]

Not sure what yours might look like. Here are two shots of my L3200's HST switch. Maybe yours is similar. The switch on mine is located in the center area below the dash. One picture will give you an idea of the location and the other shows the plunger that is actuated by a tab on the HST pedal and the locknuts. After making the adjustment I never had any trouble after that as long as I owned it. Hope this helps.

 

[Henro]

My L2501 is sometimes hard to get to start. I know it’s the HST Safety switch. Some people have posted that theirs was out of adjustments on other Ls. I took a good look and couldn’t seem to find an adjustment. I sprayed down the switch and it started. Shortly after it refused to start, so I sprayed it down with WD40 again. So far that seems to be ok.

If you have an L2501, did you find an adjustment? If you don’t, but have an L, where did you find your adjustment and how did you do it?

All I can think to add is WD40 does not affect equipment adjustments. So MAYBE the issue is with the switch itself, getting water in it or whatever...and not an adjustment issue?

Is it possible that the WD40 actually temporally lubricated the HST pedal linkage?

Just a thought...

 

[jimh406]

Thanks everyone.

 

[jimh406]

Just to update everyone, the lubricant was not a long term fix.

Steps I followed to "fix" it.
1. Take the black cover off on the treadle pedal side of the hum that attaches with 12mm wrenches/sockets.
2. Place a block or wood or similar underneath the back of the treadle pedal. Might be optional but takes all force off the switch.
3. Take the single grey bolt out that holds the electric switch.
4. That will free up the switch with the adjustment bolt.
5. Loosen the bolt that holds the switch to the bracket.
6. Rotate the bracket to make more of the bolt that goes through the bracket. The workshop manual says 1.88-1.91 inches from the switch to the welded nut not he bracket, but look at the picture so you know where to measure.
7. Tighten the locknut.
8. Put the grey bolt back in. The bracket has a "nub" to index it which is why only bolt is required.
9. Put the black cover back on with the bolts and nut.

 

[RichOzz]

I am appreciative to all for posting regarding the treadle pedal safety switch. My L2501 HST w/65 hours would not restart after an hour or so of use. Following the posted actions of others I was able to locate the safety switch without removing any covers. It can be seen from the operator's position, moving when the treadle pedal moves. I was able to depress the pedal to create space at the switch plunger which allowed me to push the plunger up several times with my finger. Then I sprayed a bit of lithium grease to the plunger as best I could. That solved the problem. So glad this site exists. Living on an island, I'm more than 2 1/2 hours, including ferry ride from the nearest dealer!

 

[eric sturdivant]

+1 for chim and his pictures
this was what i needed after replacing the return to neutral arm that had broken
readjusting the petal and the mechanism along with this switch position... thx

 

[Not.a.farmer]

Not sure what yours might look like. Here are two shots of my L3200's HST switch. Maybe yours is similar. The switch on mine is located in the center area below the dash. One picture will give you an idea of the location and the other shows the plunger that is actuated by a tab on the HST pedal and the locknuts. After making the adjustment I never had any trouble after that as long as I owned it. Hope this helps.

Your photos helped me so, so much. Thank you! I installed a 3rd function on my L2501 HST and when I was finished the tractor would not start. I could hear the click, see the lights, but turn the key and...nothing. Similar to many other posts in this forum.

I had to take off the fuse brackets and the hst bracket off to install a hose guard for the new hydraulic lines per the install instructions. When I reinstalled the hst bracket I didn't realize the plunger had to hit the metal plate underneath. After searching many of these forum posts I found your picture, adjusted the HST switch so the plunger hit the metal piece behind it and CRANK! I am so happy I don't have to go to the dealership. Thank you again!

 

[chim]

Welcome aboard and you're welcome!

This is one of the best boards on the net. There's a lot of activity by a lot of nice - and knowledgeable - people who are always ready to help each other. We are also there for each other when temptation presents itself (saying YEAH, GO AHEAD! GET IT!)