450 Case Track Rollers

1370rod

Well-known Member
Does anyone have any suggestions on a good method of removing the bolts securing the rollers? As you can see I didn’t have good luck trying to remove the bolts on the rock guards. Any ideas are appreciated, thank. Rod.
cvphoto77063.jpg
 
(quoted from post at 19:04:47 02/13/21) Does anyone have any suggestions on a good method of removing the bolts securing the rollers? As you can see I didn t have good luck trying to remove the bolts on the rock guards. Any ideas are appreciated, thank. Rod.
<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto77063.jpg">

An induction bolt heater would be one possibility for the unbroken roll bolts. That would heat them quicker and more concentrated than using a torch, which could work also. Heat and let cool a couple times. Try rubbing wax around the bolt head and roll cap interface when hot. It will often wick in like solder. Welding nuts on the broken ones can work. Are you using an impact wrench and rocking them back and forth?
 
I was rocking them back and forth. The broken rock guard
bolts you see I had heated the heads red hot and left the cool
before attempting to remove them.
 
It's best to understand what you are doing if trying heat, do not heat the bolt, heat the frame, the object is not to soften and swell the bolt which is what happens when you heat it, heat the frame around the bolt and it will expand and you have a much better chance of getting the bolts out, physics.
AJ
 
The area where these bolts thread into is a large and thick surface. Trying to heat this area enough to swell it that it might help loosen the bolt would be difficult to
say the least. That is the reason I was searching for alternative ideas.
 

What do you have to heat with? A big torch with a rosebud head? Propane, Mapp type, or acetylene fuel? You will need a Big rosebud to put heat into the track frame. Yes, heating the frame is better than heating the bolt. If you heat the bolt it must cool before trying to turn it. Another option is to cut the heads off and remove roll. You then have a stub to work with and can access the frame to heat right around the bolt, as you can those rock guard bolts you broke the heads off. Are you doing one roll or several on that side? It may be worth pulling the track frame off and rolling it over. Much easier digging the bolts out working down on them, rather than up on them.
 
I was able to remove one of the broken guard bolts by being
able to heat the frame, snapped a ice cold vise grips on it and
broke it loose easily. This could be what I will have to do with
the ones I can get a hold of. I have acetylene but no large
rose bud. The bolts that feel like they might break I might just
torch the head off to remove roller them I can heat frame and
hopefully remove the stud. 🤞
 
If you can't heat the frame and you break the bolts you will end up having to take the track frames off to get the broken bolts out, bite the bullet and take the frames off now so you can turn them over to work on, doing this type work there is no short cuts the trouble starts when the bolts were put in without anti seize compound on them and that is what usually happens with DIY repairs.
AJ
 

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