amt 15" planer

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Forum topic by rusty2010 posted 02-13-2016 01:58 PM 658 views 0 times favorited 3 replies Add to Favorites Watch
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150 posts in 2584 days

02-13-2016 01:58 PM

I have an AMT 15” plane made in 1996. The problem is the elevator drops when it’s planing. There are 2 handles on the columns that I tighten as much as possible but the elevator drops as it planes. You can see the handle turn as it planes. I measured with an digital caliper and started at 1.20 in the beginning of the board and ended up with 1.36. there should be no movement in the elevator at all. Any suggestions? thanks

-- check, recheck then check again

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2767 posts in 2051 days

#1 posted 02-13-2016 07:45 PM

I had an older model Grizzly 15” planer that did the same thing. This model had a stationary head, and moved the table up and down (almost all Grizzly’s planers have had this configuration). Tightening the screw clamps did not control it.

I finally resorted to a rather crude fix. I tapped and drilled a vertical hole through one spoke of the elevation crank (which was mounted horizontally, rather than with a right angle gear setup). Into this I screwed a clamping knob, which I would tighten down onto the main casting after setting the elevation. This worked, but was inconvenient and not very elegant.

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

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6766 posts in 2225 days

#2 posted 02-13-2016 08:35 PM

Those planers were pretty generic imported clones of the Delta, and sold under many brand names (Jet, Grizzly, Bridgeport, etc…). I’ve read of people being able to source replacement parts through Grizzly for them. As for the table lock, the lock handles push a wedge block against the posts.. Most likely, the friction point has become worn/damaged, which can happen with repeated movement of the table without releasing them. If you pull the handles and wedges, you can examine the area that engages the post and possibly clean it up with a file or sandpaper. In some cases (not particular to your planer), the addition of a washer between the knob and wedge can help.


-- Brad in FL - In Dog I trust... everything else is questionable

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150 posts in 2584 days

#3 posted 02-14-2016 01:01 AM

Brad, there is a small shiny strip on the bushing (4), I will give filing a shot, thanks

Run with scissors, I admit I had just a few boards left and I also clamped the handle in place. It worked fine

-- check, recheck then check again

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