Radial drill press restoration major problem repair options
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- Опубликовано: 21 окт 2024
- The reason I believe this machine tool was abandoned to rust in a recovery yard is the glide bearings the drill head moves along the arm on had become jammed solidly locking the head to the arm. I used a small brazing tip on with an acetylene torch to burn across both glide bearing races to colaps the bearing to free the head. There are two options for repair. 1 is to slide the head off the arm and replace the two ball bearings. 2 a window is provided on the back of the arm for emergency repair, but that requires cutting an access hole on the front of the arm between the ways and just under the rack.
I can borrow a heavy cart and crib the approx. 1000 lb. drill head to it, then pull it off the arm when I have it inside. I favor that method to be able to fully clean the heads flat and angle ways.
I don’t envy you on that bearing job. I wish you luck in whichever way you do it. Have a great day.
It is an interesting challenge, thanks
Hey!
Thanks so much for the video!
Hi, thanks for tuning in!
DeeDee. Lower the arm until the head is resting on the table or some cribbing setup on the table, maybe even set the head on the pallet on the back of the pickup or the Axelson? I don’t think sliding the head off has to be dangerous. Using the machine to raise or lower the arm until the weight of the head is supported off the the arm. I look forward to seeing your solution to this challenge. TB
You are on top of it! Using the machines own lift is better than using an overhead crane. I will crib the head to a heavy cart with wheels. I have never heard of this repair before. All it takes is some chips in that slot for those bearings to roll up on and it is a big job on one of these.
Once one graduates from the Monarch 10ee vacuum tube school I find that I can chuckle at a minor radial drill press catastrophe such as this.
That sounds like an easy option dee dee to bore a hole in the casting to undo the nuts from the back and replace the bearings provided you can access both bearings by sliding the head, or bore another hole on the back to suit. Can you get a mag drill on the casting and use a Rotabroach? It would be done in no time at all. Them make some removable plugs for the hole/s. Tony
That is an attractive option, from the small metal cover location on the back of the arm both of those bearings will be accessible each at a time if a suitable hole is made between the ways under the gear rack. I think a magdrill may lock on to the flat sides of the ways. The studs the bearings are on are held by Allen screws inside the head casting. I think a minimal hole can be made and the bearings still on the studs can be knocked out and returned. Then plug the hole for the invisible repair.
that could save an entire day or more. I have look up roto broach!
That's a big job to change the bearings.
But it will be worthwhile.
My guess to pull the head off would be the way to do it.
It has to be very heavy.
Not sure if you have anything to lift it.
I am very sure you will figure it out.
Like your videos Dee.
Take care, Ed.
I am leaning in that direction, the head can be removed using a heavy cart and the machines column lift, thanks
It seems like that head comes apart. You should be able to strip it down until only the backing plate is left, which will be easier to handle than the complete unit, maybe even by hand. I suspect you may have to do that anyway since the shafts that those bearings are mounted on are likely damaged as well, and you will need to replace them from the inside of that head assembly.
The bearing studs are fastened from inside the head but there is no room to get them out. The head is a few castings that are welded together. It seems like a worse situation then it actually is. I predict future videos!
Have you ever used citrus gel paint remover . I have had good luck with it . Give it an hour or more and try it or wait and keep it wet you can wrap it up in plastic wrap . To bad about those bearings . The number is might on the bearing it self or you may have to just measure them out Good Luck
I have not tried that yet, thanks
Olá amigo!!!
EU no meu entender vale muito a pena uma boa de reforma nesta máquina, para mim aqui no Brasil seria um artigo de luxo adquirir tal máquina!!!
Eu lhe desejo muita saúde e boa sorte!!!
Abraço daqui do Brasil a todos aí!!!
I got a Cincinnati Bickford 9x36 radial drill and Now I have to go check the bearings on it to satisfy my curiosity if they are OK
I think some chips may have found their way in there, and the bearings climbed up then jammed the head locked
Chloe trying to tell you she wants to go squirrel hunting.
She did get her run!
Too bad on the bearing failure, but I really like solving these kind of engineering problems
I am finding this project the most difficult old machine yet. I am in way too far to back out time wise, it has been a great puzzle with twists and turns, also no other locals dared to take on,
👍👍👍
Hi, thanks!
When I was Younger and being an absolute idiot, I was running a radial drill and the tools kept falling out. Th inside of the tapper had many dings in it. So I decided to stone the inside of the taper while it was spinning slow. It seemed to be going just fine until the stone grabbed and bound with my finger. Fortunately , The stone broke and I was ok. Probably the dumbest thing Ive ever done. Lesson was learned. It could have < and should have twisted My finger right off. This is a dangerous trade. We dont always get to learn lessons the way I did.
Im hoping the commenters (and Yourself) go a little easy on Me. Its a story Im ashamed to tell.
That scared me! Things like that can happen, I am glad you mentioned that.