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Ridgid R4331 Planer

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Forum topic by ScottM posted 10-16-2015 12:44 PM 660 views 0 times favorited 4 replies Add to Favorites Watch
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ScottM

346 posts in 1606 days


10-16-2015 12:44 PM

Hi guys,
I have the Ridgid R4331 bench top planer and have begun to notice an issue with it. It planes to an uneven thickness from left to right. The left side of the board comes out thinner than the right. This is a very bad thing! The instruction manual does not provide for any adjustments to correct this other than to take it to an authorized service center, which in my case is about a 4.5 hour round trip drive.
So I was wondering if anyone else with this same planer has come across this same issue and if so what was done about it. I like the planer, but if this cannot be fixed I’ll just sell the damn thing on CL and go get the more expensive DeWalt 735. Any help is appreciated!!


4 replies so far

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BinghamtonEd

2281 posts in 1829 days


#1 posted 10-16-2015 01:15 PM

How uneven is it? Do you normally plane thin stock only on one side? It could be something as trivial as knives wearing unevenly. I’m not familiar with the internal workings of it, so I’m not sure how and if the cutter head could get tweaked. You could set the cutter head and then measure the distance from the table to the knives left/right/center. Maybe you have one knife that got tweaked somehow.

Also, this is all assuming the face against the table is flat. If the board is flat on the right 2/3 of the face, bud cups up from the table at the left 1/3, the left side may come out thinner if the feed rollers don’t have enough pressure to flatten out the cup as it goes through (they shouldn’t need to do so anyways, bottom face should be jointed prior to planing)

-- - The mightiest oak in the forest is just a little nut that held its ground.

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ScottM

346 posts in 1606 days


#2 posted 10-16-2015 01:32 PM

I’m talking about ~1/16” over about 11 inches.
The knife possibility did cross my mind. I will probably try and put a new set in this weekend and see what happens from there. I have taken the case off of it and really didn’t see any sort of adjustments that I could make. Of course, I’m no planer mechanic so there may be a way, but nothing obvious. The head really just screws up and down a threaded rod so there maybe something underneath to adjust that. I’ll also be sure my next test is truly flat on the table side. I’m pretty sure it was, but I don’t have a jointer… I usually use a sled with shims keep it solid to flatten the top and then flip it over to make the faces parallel.

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BinghamtonEd

2281 posts in 1829 days


#3 posted 10-16-2015 03:25 PM

The fact that its 1/16” probably rules out uneven knife wear. If the distance from your table to the knives is unequal across the length of any one knife, it points to a problem with that knife. Across all knives, more likely the cutterhead is not parallel (left/right) to the table. I don’t know of how the table could’ve gotten that bad, unless it fell off the stand or something. I think it’s far fetched, but check your infeed and outfeed tables to make sure they’re not off, and lifting one side up.

If you run two narrower pieces, say a 2×4 or something, one on the left side, and then one on the right, do they come out 1/16” off?

-- - The mightiest oak in the forest is just a little nut that held its ground.

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pintodeluxe

4852 posts in 2273 days


#4 posted 10-16-2015 03:29 PM

Without a jointer to establish a truly flat face, a planer can’t really do its job very well. I would look for a jointer, and stick to S4S lumber in the meantime.
I wouldn’t assume you have a problem with the planer unless you are seeing straight, flat S4S lumber come out uneven.

If this is just a desperate cry for a new Dewalt planer, then by all means get it!

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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