Jet jointer setup questions

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Forum topic by Chuckjones242 posted 09-19-2016 04:11 PM 457 views 1 time favorited 2 replies Add to Favorites Watch
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1 post in 608 days

09-19-2016 04:11 PM

Hey there -

Picked up a 6” Jet with helix head last week. Sweet machine…

Have 2 issues that I’d like some help with.

1. The base is really unlevel. It’s probably an inch off and rocks a great deal. I put wood shims, door shims, under a side for the time being, but can help think this isn’t a long term solution? I also has it on an HTC mobile base from Amazon since I have a small shop and shift things around to handle long boards. I don’t really know how to proceed leveling it.

2. Vibration has started. Despite the base problem, when I used it for the first hour there was no discernible vibration that remember. After a couple hours now I have some. Constant when running.

Any tips on how to tackle #1 especially? I think that once the base is level I can probably try working without a belt or adjusting the mount or putting on a link belt?


2 replies so far

View JBrow's profile


1354 posts in 914 days

#1 posted 09-24-2016 02:10 AM


It is pretty hard to diagnose such problems without actually being there. But here goes…

I assume the floor is flat and the jointer base sets flat on the floor, making contact with the floor around the perimeter of the machine. If the floor is flat but the base does not set flat on the floor then it would seem that sheet metal base cabinet is either twisted or the metal inward fold (I assume the sheet metal of the machine base is bent inward under the machine) has been bent thus preventing intimate contact all the way the perimeter of the base.

If the base sets flat on the flat floor, then looking at the mobile base could reveal the problem. It seems to me that the most likely cause of the machine not setting flat on the mobile base would be one of the supports welded in the corner is not in the same plane as the other three corner supports. Also taking a close look at how the mobile base is assembled could reveal a problem. If the mobile base is not assembled correctly, perhaps rocking could result.

If you bought a pre-owned machine, looking for modifications by the prior owner might be in order. If the prior owner had uneven floors, perhaps he leveled the machine and you end up with a rocking machine problem.

As for vibration, it is I suppose possible that if the machine is not firmly planted on the floor some vibration could result (wooden shims working loose after an hour of use). However, it could suggest that something that was in balance is now out of balance. If the pulley tension is correctly set, a careful inspection of the cutter head and the motor mount would be good inspections to conduct.

View rwe2156's profile


2916 posts in 1474 days

#2 posted 09-24-2016 12:01 PM

If the base is angle iron you could scribe and cut the other legs?

A pic would help. Are there any adjustable feet on it?

-- Everything is a prototype thats why its one of a kind!!

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