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Drill Press Rack and Pinion Help

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Forum topic by Scott posted 04-15-2017 02:35 AM 375 views 0 times favorited 4 replies Add to Favorites Watch
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Scott

101 posts in 1189 days


04-15-2017 02:35 AM

I Picked up a new drill press tonight. It is a floor model made by an off brand. The height adjustment isn’t working on it though. It uses the rack and pinion to change height. Nothing looks visually wrong with the rack. I’ve taken the whole thing apart and the gears work fine together. Anyone have any advise on getting it to work? It seems like it was binding before….


4 replies so far

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runswithscissors

2557 posts in 1858 days


#1 posted 04-15-2017 04:36 AM

Check whether the crank has a set screw to fix it on the pinion shaft. If that’s loose or missing, it could be your problem.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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teejk02

476 posts in 959 days


#2 posted 04-15-2017 03:50 PM

I’ve owned 2 different Delta’s. The rack and pinion on both was always “clunky”. The “rack” “floats” on the column and is supposed to be self aligning but it’s not really a precision fit. For yours not to work at all is odd though. Is it worn to the point where the pinion doesn’t mesh correctly?

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Scott

101 posts in 1189 days


#3 posted 04-15-2017 07:51 PM

Well I took it apart and saw no signs of excessive wear. I ended up taking all the gears out and cleaning them thoroughly. One of the gears was installed backwards so they were trying to work in opposite direction. I reassembled it correctly and everything works like a charm now!

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teejk02

476 posts in 959 days


#4 posted 04-15-2017 09:22 PM



Well I took it apart and saw no signs of excessive wear. I ended up taking all the gears out and cleaning them thoroughly. One of the gears was installed backwards so they were trying to work in opposite direction. I reassembled it correctly and everything works like a charm now!

- Scott

Sometimes we have to take stuff apart to see how they work! I’m about 50/50 on getting it back together right but glad you figured it out. My next suggestion was going to be to shim the rack away from the column.

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