Looking For Used TL421 for my B21?

[RobbieBones]

Anybody out there have a TL421 in good shape out there? My loader was repaired by the prior owner, it’s welded wrong at the lower arm behind the bucket. Can’t be repaired because the loader appears to be tweaked.

 

[100 td]

Good luck finding one, try some tractor part out yards. But it is made of metal, so it can be cut/shut/modified/repaired!

 

[RobbieBones]

Good luck finding one, try some tractor part out yards. But it is made of metal, so it can be cut/shut/modified/repaired!

Well after checking local body shops in attempt to get them to straighten the frame looks like I’ll have to cut and weld. Looking for specs on the bucket and tl421 frame. Need to fix the cleaves on the bucket and cut and weld the frame square again.

Anyone out there with specs or measurements?

 

[100 td]

Not sure of the exact problem you have, got any pics of the problems to show?
The only specs I've ever seen are what's in the operators manual, and only one spec that probably has some value is the center of axle to front of bucket and possibly max lift height.
If it's a twist/alignment in the main boom in relation to one side to the other, I offer the following to ponder.
I expect just making everything symmetric from one side to the other would be the key. I would remove bucket, set the rear frame of the tractor on measured blocks on each side, on level concrete(you can't accurately measure anything when on tires), then check tractor frame alignment, then check FEL mounts, then start boom measurements and alignment checks. If it's not too bad cutting and rewelding the main cross tube may cure your twist.
One key measurement would be FEL pin mounts back to the rear of the tractor frame, especially the top mount. If there is any discrepancy in this measurement then you would be adjusting your boom and creating a further alignment problem.
There may be other ways if approached with caution, as in remove one lift ram and pin/fix/chain that boom to the ground and lift with other ram, this will create force on one side only and you may be able to twist the main boom cross tube back into alignment. You may need to adjust reliefs to get enough force, it is a job fraught with danger if not done correctly, please seek professional help if you are to go ahead with something like this.
Regards the bucket, any repairs required to the bucket should ultimately be made so that the pins are square and aligned to the square/straight face of the bucket, so that if this bucket was fitted to any loader it would function correctly. Don't repair the bucket out of alignment to correct for your incorrect boom arms if it can be helped, meaning correct the boom first.

 

[RobbieBones]

Not sure of the exact problem you have, got any pics of the problems to show?
The only specs I've ever seen are what's in the operators manual, and only one spec that probably has some value is the center of axle to front of bucket and possibly max lift height.
If it's a twist/alignment in the main boom in relation to one side to the other, I offer the following to ponder.
I expect just making everything symmetric from one side to the other would be the key. I would remove bucket, set the rear frame of the tractor on measured blocks on each side, on level concrete(you can't accurately measure anything when on tires), then check tractor frame alignment, then check FEL mounts, then start boom measurements and alignment checks. If it's not too bad cutting and rewelding the main cross tube may cure your twist.
One key measurement would be FEL pin mounts back to the rear of the tractor frame, especially the top mount. If there is any discrepancy in this measurement then you would be adjusting your boom and creating a further alignment problem.
There may be other ways if approached with caution, as in remove one lift ram and pin/fix/chain that boom to the ground and lift with other ram, this will create force on one side only and you may be able to twist the main boom cross tube back into alignment. You may need to adjust reliefs to get enough force, it is a job fraught with danger if not done correctly, please seek professional help if you are to go ahead with something like this.
Regards the bucket, any repairs required to the bucket should ultimately be made so that the pins are square and aligned to the square/straight face of the bucket, so that if this bucket was fitted to any loader it would function correctly. Don't repair the bucket out of alignment to correct for your incorrect boom arms if it can be helped, meaning correct the boom first.

I got your PM. This is the first time I had the FEL off the tractor. Currently the B21 is split in my garage. Parts are on the way so maybe by the weekend I’ll have it together and out of the garage. Then I’ll bring in the FEL and attempt to square it up. Thanks for the recommendations. I’ll posts pictures when I get it in the garage and explain the issues.

 

[100 td]

I'll wait for the pics and explanation, but something else to note with my above discussion (in case someone else looks at this for their problems), re operating boom with one ram, this or may not fix your problem, as it may not correct what you actually need, depending on how and where yours is out of alignment. A lot of thought and expertise would need to established before looking at this method.

 

[downsizingnow48]

I have a B21 happy to provide measurements if needed.

 

[RobbieBones]

PM sent Pat.

I have a B21 happy to provide measurements if needed.

 

[RobbieBones]

Sent you a PM.

I'll wait for the pics and explanation, but something else to note with my above discussion (in case someone else looks at this for their problems), re operating boom with one ram, this or may not fix your problem, as it may not correct what you actually need, depending on how and where yours is out of alignment. A lot of thought and expertise would need to established before looking at this method.

 

[RobbieBones]

Re: Straightening bent TL421 Boom on my B21!

I put the FEL back on the tractor and put the tractor on level stands front and back. Here are some pictures hopefully showing how bent the loader is down to the left. Picture showing a prior repair as well. Measuring across top of boom from rear supports to grease zirk on curl piston left side is out by 1 measuring 58 3/8 rightside measuring 57 3/8. Placing level across boom arm left side is down around one half inch. Left to right measurements across boom is close to 43? Bottom bucket pin shows that the arms are slightly twisted as well.

To fix the problem I plan on cutting the crossmember on the left side about 2/3 thru from the top bend left side up then weld the cut. I’ll make the cut 2-3” from left boom arm. May need to cut the bottom of the cross member on the rightside as well to allow for bend. How does that sound?