On Aug 29, 2:37*pm, jtpr wrote:
This was my Dad's. *It is a Craftsman King-Seeley probably around the 1950's anyway. *Floor standing. *It is *good machine that I have used for a long time. *However, it has never had the power that I think it should and I believe it is due to the belts. *This has come to be a problem as I want to drill a 3 1/8th inch hole for a clock in a hunk of maple 1 1/2" thick. It just is taking forever. *I don't really know how to work the belt system. *There is no Sears part number on it that I can find, but it does have a 1/2hp motor.

Here are some pics:

http://jtpryan.smugmug.com/Other/Dri...5079295_D2w2wb

If you have any idea what I do to minimize the belt slip, that would be great. *Thank you.

-Jim

Jim-

Most of the answers have focused on the pulley arrangement /
mechanism.

I'll try a different approach... how old are the belts?
Very old belts tend to be a bit stiff. Your drill press' pulley
arrangement has relatively short center distances and the "lack of
wrap" can be adding to the slack.

At a minumim, I'd try a new belt in the location where you get the
most (all?) of the slippage.

Which belt is slipping?

You mention 1/2 hp... motor amperage?

cheers
Bob