Shopsmith Forums

My extension does not slide up and down easily. I have loosened the four mounting bolts to align this table with the main table but when I tighten them, the extension table is hard to slide.

Thoughts.......help?

Don

Make sure that the table is not warped. If it is then tightening the screws will
cause the legs to splay outward and bind. Also if the tubes are dirty or oxidized a very slight bowing out of the legs can cause a bind. Try cleaning and waxing the tubes and the sockets first and then check the table. If you can't resolve the problem then come back here for more guidence. Another thing could be that the casting is bent and is pulling the table legs when the bolts are tightened.
Bill V

Get rid of the screws. Replace them with 4 studs(short pieces of all-thread), 8 nuts and 8 washers.

The studs go tightly into the table.

A nut, then a washer next on all four studs.

Place the tube mount on the studs.

A washer then a nut on each stud.

This allows you to adjust the lower nuts for a level table.

Then the upper nuts are used to align the table horizontally as you were doing with the screws.

This is the current attachment method being used on new tables.

If you cannot locate thick washers, double them up.

JPW on the tubes and 'socket' will do wonders.

JPG40504 wrote:Get rid of the screws. Replace them with 4 studs(short pieces of all-thread), 8 nuts and 8 washers.
The studs go tightly into the table.
A nut, then a washer next on all four studs.
Place the tube mount on the studs.
A washer then a nut on each stud.
This allows you to adjust the lower nuts for a level table.
Then the upper nuts are used to align the table horizontally as you were doing with the screws.
This is the current attachment method being used on new tables.
If you cannot locate thick washers, double them up.
JPW on the tubes and 'socket' will do wonders.

I had the same problem and after looking at the design of my table and newer ones did what JPG recommends. It is the perfect solution.

Has it been determined why the tables do not slide easily on the extension tubes?

The table could be warped.

The tubes could be bent.

The rails may present internal interference.

The rails may not be coplanar (both vertically and horizontally).

If you treat the extension table like a floating table, does it then slide on and off easily?

While trying to figure this out, I suggest that you keep the extension tubes as short as possible and still be able to diagnose the issue. If the tubes are too long, they themselves can introduce the symptoms because the tubes are no longer coplanar.

The issue(AIUI) is the mounting posts sticking in the SPT mount bores after the mounting screws are tightened.

Rails and tubes?????;) He could have meant rail tubes though, but the mounting screws causing the binding led me to the mounting posts etc..

JPG40504 wrote:The issue(AIUI) is the mounting posts sticking in the SPT mount bores after the mounting screws are tightened.

Rails and tubes?????]could [/B]have meant rail tubes though, but the mounting screws causing the binding led me to the mounting posts etc..

That is what I took from this line:"My extension does not slide up and down easily."


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robinson46176 wrote:That is what I took from this line:"My extension does not slide up and down easily."


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So which four bolts did he loosen that might have effected that