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Need Some Advice On my Drill Press.

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Forum topic by stefang posted 08-23-2014 06:19 PM 670 views 0 times favorited 11 replies Add to Favorites Watch
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stefang

13304 posts in 2025 days


08-23-2014 06:19 PM

I hate to admit it, but quite few years ago I made the mistake of using my floor model drill press as a clamp. I was so focused on the clamping that I failed to notice that the linear gear mounted on the column bent and then broke when I tried to bend it back into place. Luckily it broke quite low down so I was able to put a wooden collar around the break to hold both ends in place. it was meant as a temporary fix and I’m still hoping to find a replacement part.

My question is: Are these gears normally pretty standard or different for different makes? My DP is Chinese made and sold through a large retailer here in Norway, and they should sell the parts, but this particular item has been discontinued and they are not willing to try to get the part for me. That means I will have to find another source, but nobody sells these in my area.

-- Mike, an American living in Norway.


11 replies so far

View REO's profile

REO

628 posts in 764 days


#1 posted 08-23-2014 07:02 PM

straighten and weld. done it a few times for other people.

View Dutchy's profile

Dutchy

540 posts in 859 days


#2 posted 08-23-2014 07:38 PM

Do you have a picture Mike? Or have a look at http://www.maedler.nl/Category/1643/1618.aspx.

-- My englisch is bad but how is your dutch?

View Druid's profile (online now)

Druid

648 posts in 1486 days


#3 posted 08-23-2014 07:57 PM

If it’s a “standard” rack & pinion format, I would suggest . . .
1. Take a look at http://www.mooregear.com/gearracks.html
or
2. Take the broken one to your local tool supplier to see if you can find a matching part on another model or brand.

Otherwise, REO’s suggestion is what I would follow. A decent welder should be able to quickly repair the part to look like new, and the cost should be reasonable.

-- John, British Columbia, Canada

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stefang

13304 posts in 2025 days


#4 posted 08-23-2014 08:10 PM

I think the easiest for me would be a weld. Thanks Reo, Dutchy and John!

-- Mike, an American living in Norway.

View tyvekboy's profile

tyvekboy

603 posts in 1704 days


#5 posted 08-23-2014 08:15 PM

If the rack bent, it probably was about 3/8 inch thick. I have had that happen to a JET drill press in the school shop where I work and have had to replace it at least once.

You might want to check with a JET dealer that has floor models on display and take your rack with you. If it looks similar you could probably order one. Since yourʻs is broken, you can probably remove it easily my moving the table past the broken end. Get someone to help you hold the table as you crank it off the broken end … itʻs heavy.

Now getting it installed is another matter. You will have to get someone to help you cause the parts are heavy. Start by removing the motor and head of the drill press. Then you will have to remove the collar what holds the top of the rack to the column. Then loosen the table clamp and remove the table along with the rack if it is still attached.

Install the new rack in the gears and install the table with the rack over the column. Install the collar that holds the top of the rack. Test it and make sure itʻs not too tight. It should be loose enough so that when you move the table around the column, the rack will move with it. Then re-install the head and motor of the drill press.

Piece of cake.

-- Tyvekboy -- Marietta, GA

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REO

628 posts in 764 days


#6 posted 08-23-2014 09:46 PM

it can be done from the base end as well. lay the drill on a bench and remove the base. there is a set screw in from the side of the base.work the rack into position and reposition the base

View Jim Jakosh's profile

Jim Jakosh

11746 posts in 1796 days


#7 posted 08-24-2014 12:58 AM

You could grind a bevel all around the broken area , hold it aligned in a V block( wooden one will be okay) and weld it up the then grind the weld smooth. That sucker must be pretty thin walled to brake under straight line pressure like that. If so you may have to braze it. If you cannot align the two pieces perfectly and there is still a bend in it, I’d scrap it because it will not drill true..

I had a bent center Center drive shaft in the Craftsman I was given and I was able to tunk it once and it ran true but if the quill with the rack gear was broken, I was able to order a whole new quill assembly with the tube with the rack gear, the top and bottom bearings and the center shaft from Sears for $50. If it is discontinued, welding is your only option unless you can find a model just like it with a bad motor or something different than a bent shaft wrong with it.

Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

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Grandpa

3190 posts in 1366 days


#8 posted 08-24-2014 02:48 AM

I had a similar experience except I wasn’t clamping. I was raising the table by cranking and the next thing I know the rack was bowed out about 8 inches. They break easily. I have tried to order another from anyone and they always want a model number for the drill press. I can adjust the width and thickness if I can get close. Someday soon I plan to measure the width and thickness of that part and visit Harbor Freight. I know their tools are not up to the Taiwan quality of mine but if it fits it works. Those are my plans. I think I can buy a new one cheaper than I can weld the old on if I still have all the parts. Actually the old Delta drill presses don’t have that part. You muscled the table up and down. I did see a post on here I believe. It was someone that had mounted a pulley behind the post and hung a weight on one end of the chain with the other end attached to the table. Looked like a good idea.

View stefang's profile

stefang

13304 posts in 2025 days


#9 posted 08-24-2014 08:08 AM

I think welding is the easiest way to go. If I were in the States I could compare, but here it’s difficult just to find a company selling drill presses. Thanks everybody for your suggestions. I did take the gear to a company originally and they said it couldn’t be welded, but I will some other places.

-- Mike, an American living in Norway.

View Jim Bertelson's profile

Jim Bertelson

3676 posts in 1855 days


#10 posted 08-24-2014 03:48 PM

If the welding can’t be done, post the exact dimensions and a picture. I am sure people will be happy to check their drill presses to see if it is a match. If a current model of a different brand is found with a match, you might be able to get the part that way. I don’t have a floor standing model, and it is fairly old now.

But I would be willing to check any drill presses I come across in the stores. Will be going to the Grizzly showroom most likely next week when I am in La Conner. Much of their gear is made in Taiwan, but I am not sure that will make a difference.

-- Jim, Anchorage Alaska

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stefang

13304 posts in 2025 days


#11 posted 08-24-2014 03:51 PM

Great idea Jim, thanks. I will do that.

-- Mike, an American living in Norway.

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