Tool to stretch spring

[JoshuaB]

Trying to fix an old john deere 210 disc. Several of the scrapers need new springs but for the life of me I can not stretch them long enough to attatch them. Anyone ever seen a tool made to stretch a spring? I am at work now, can get pics of spring and Disc on thursday if needed.

 

[hosspuller]

Use a ratchet strap to pull the spring over the seat.

 

[Leejohn]

Yes let's see a picture of what you are trying to do.

 

[JoshuaB]

Ok, will update Thursday when I am back on land with some pics

 

[MinnesotaEric]

Trying to fix an old john deere 210 disc. Several of the scrapers need new springs but for the life of me I can not stretch them long enough to attatch them. Anyone ever seen a tool made to stretch a spring? I am at work now, can get pics of spring and Disc on thursday if needed.

I have several special spring tools for exhaust systems held together with springs. Look for motorcycle tools.

 

[dragoneggs]

Not sure if it will work for your application but the old automobile drum brake spring tool might work. Been so long since using it but if I recall correctly, you simply used the long slim handle that had a concave end that rested on 'something' and you could stretch the spring and slide it off onto the thinga-majiggy. Dang it's been too long.

 

[JoshuaB]

The problem with using a brake tool is that the springs dont go over pegs, they go into holes on the scraper arms so as far as I can tell they need to be stretched and twisted at the same time so that the hooks on the ends of the springs can be inserted. Really seems like a poor design and from my searching Ihave not found anything good said about this disc online, or from anyone local for that matter either. but it is all I have to work with.


I had a thought last night about getting a couple dozen self tapping screws and making them act as pegs to mount the springs too. I just worry that the metal would be too brittle and they would just snap from the side load.

 

[JoshuaB]

Found a picture online of how it is set up.

 

[JoshuaB]

I guess my problem is not so much the pulling of it, Hosspullers suggestion of a ratchet strap would make that easy enough, but the pull AND twist to hook the spring is the trick.

 

[MitchellB]

Looks like a job for Armstrong & a good pair of Vice Grips to pull and twist the end into the hole.

 

[Patches]

Get yourself a snowmobile exhaust spring tool; I'm sure that will work and they're inexpensive

 

[Leejohn]

Boy if you could get the nut loose and the main bearing arm loose. Then everything would side out a little and maybe just enough to hook the spring.

 

[Ford850]

I'd try this with a rope first, and if that doesn't work then make the T-handled exhaust tool (with hook).
https://www.youtube.com/watch?v=O2MMFajr7fs

 

[Egon]

Any chance you can loosen the disc shaft and partial slide it out. Then you'd be working with slack springs.

As already mentioned!

 

[Mace Canute]

Expand the spring and insert a tool to hold the spring in it's expanded form, install the spring and then knock the tool out.

The tool is simply a length of tubing (ID of tubing - OD of spring) cut in half length ways with a large washer welded on each end. A large piece of angle iron will also work in lieu of tubing.

 

[Arkaybee]

JoshuaB

Look at the spring-holding as it passes through the round tubing to which it is mounted.
It appears from the photo that the spring-holding shaft is secured by a roll pin or bolt through the spring-holding shaft after it passes through the tubing.

If that is the case then you can remove the pin or bolt, take the shaft out, attach the spring and then insert the spring-holding shaft back through the tubing and replace the pin or bolt.

You still may have to use a lever to pry the mechanism back thus stretching the spring in order to re-insert the shaft through the tubing. But this is much easier to do than just pulling on such a stiff spring and you have multiple options on how to do this last operation. Hope that works for you.

HTH

Arkaybee

 

[RippySkippy]

[snip...]remove the pin or bolt, take the shaft out, attach the spring and then insert the spring-holding shaft back through the tubing and replace the pin or bolt.[sinp...]

This is exactly how we use to change them back in the day. Once the spring is attached and you have the leverage of the scraper arm, with a little finessing it's easily replaced. (drive the roll pins out with a roll pin punch)

Good luck, watch those fingers!

 

[zzvyb6]

You don't have to stretch the whole spring, only most of it. Insert a piece of suitable flat stock between the coils near the end and pull it. Put a hole in one end of the flat stock firts. Then a come-along can get into position while you turn and twist the spring end. I use loops of plastic bale twine. The twine melts a bit as you pull it around the spring end and keeps the tension fixed while you jocky the spring end around.