Best ways

[Alastair Find all posts View Profile Close Alastair]

Working away this week, and a few jobs were just a bit trickier than usual. First ridiculus problem was a front roller casing.

The junior tech had gone round all the front rollers and used locktite to secure in the hex bolts in place. [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img] (why I oughta ...) This particular roller had a very stubborn hex screw. It was totally welded into the casing. I usually get a larger allen bolt and hammer it in and use a lever, such as a shuttle compression spring tube or the short tube of the shuttle for leverage. But alas to no avail. Tried heating up the metal, also hamering around the bolt to loosen it up.

How do you guys get rounded, stubborn, worn, screws out of the front roller?

My colleague and pal, James, "the hammer" came up with a great solution for adjusting the horns on the orientator pan.
Just take the motor winding handle and place the open end over the horn on the pan. Now it is an easy matter of either pushing or pulling in which ever direction you want to move the horns! Thus avoiding horrific injury to the related parts if you get out the mallet and give it a good seeing too! [img]/content/btubb/images/%%GRAEMLIN_URL%%/cool.gif[/img]

[8270_Wang Find all posts View Profile Close 8270_Wang]

Re: Best ways

Try to weld a small nut on top of the allen bolt such as a 1/4" bolt. Then you can use a 7/16" wrench to break the allen bolt loose.

Wang

[Alastair Find all posts View Profile Close Alastair]

Re: Best ways

[triac Members Find all posts View Profile Close triac]

Re: Best ways

Alastair,

I quit bending the ears (horns?) along time ago unless needed to straighten to factory angle. I found this to be the best angle. When I do straighten them I use extreme heat, as cold bending will take its toll and begin cracking and twisting the pan.

I have a couple of machines that need ear adjusting once in a while, they need readjusting from when the pins are new to when they wear and get bloated. Instead of bending them back and forth, try something like this.

As for your front roller problem, I do something similar as Wang. You can tack weld or braze the thread end of a ¼” bolt to the hole. You might have open the stripped allen hole slightly as to hold the ¼”bolt snug when inserting.

As for the locktite bolts…Just use a oxygen / acetylene torch and get the bolts cherry red hot then remove immediately while red. I would discard these bolts as the heat will soften the hardness. The heat wont hurt the cast iron housings.

Good Luck,
Triac

[LaRue Member Find all posts View Profile Close LaRue]

Re: Best ways

I drill them and then use an easyout.

[evertonfc Members Find all posts View Profile Close evertonfc]

Re: Best ways

i drill through them,easy to get out and only takes a few minutes.

[JimDorsin Members Find all posts View Profile Close JimDorsin]

Re: Best ways

The hole in the bottom of a pin makes a good orienter "horn" bending apparatus.

[JimDorsin Members Find all posts View Profile Close JimDorsin]

Re: Best ways

Dang....been scratching my head on this one for a few minutes. Maybe I am just tired.......(been a long day).........where in the front roller do you find hex bolts???? did I miss something?? (lol)

[partnumber Members Find all posts View Profile Close partnumber]

Re: Best ways

When the front roller body is already damaged, you can hammer with a screwdriver round the bolt to make the hole bigger. After removing the body, you can easily remove the bolt with a grip vice.

[Coors Members Find all posts View Profile Close Coors]

Re: Best ways

I drill a little Divot hole near the edge of the bolt, then use a hammer and punch to turn the bolt. once it breaks loose you can use an allen

[*70*PinMonkey Members Find all posts View Profile Close *70*PinMonkey]

Re: Best ways

All the above works well.

When these bolts are "fused" into the threads, its sometimes dirt and rust and believe me, I've broken many an allen head socket trying to back them out.

Old faithful method: Take a few mighty swings at the bolthead with a big hammer. Very loud. Breaks up the rust and makes it much easier to turn.

[JimDorsin Members Find all posts View Profile Close JimDorsin]

Re: Best ways

Smack it really really reallllly hard with a hammer before breaking them loose.

[sparta lanes Members Find all posts View Profile Close sparta lanes]

Re: Best ways

I use Homer's Method Too. Dont Be Afraid To Break Out Those Guns Baby. Afterwards youll feel like A stud too !!

[8270king Tech of the Year 2009 Find all posts View Profile Close 8270king]

Re: Best ways

Homer has a good method.

[MarkyB Members Find all posts View Profile Close MarkyB]

Re: Best ways

yeah give it a good bashing, bit of penetrating fluid from the side, then you get the joy of the "ping" when it finally comes loose, and the shock jolts up your arm, not had one like that for a while, prob cause i'm not strong enough to overtighten them!!!!!!!