Thread: Mitre slots in GMC table saw.

Not familiar with the unit you purchased, but GMC went bust in about 2008, so if you bought the saw new, it's been kicking around in the box for a while.

Table saws tend to come in two varieties.

In one, the saw raise and fall and tilt mechanism, arbour and motor are bolted to a solid table top and the whole assembly bolts onto the case/stand. Blade and mitre slots etc are aligned by adjusting the saw mech relative to the tabletop, generally by releasing the mechanism mounting bolts slightly and tapping with a rubber mallet or similar.

The other variety has the entire saw mech attached to the frame or case, and not really adjustable. The tabletop also bolts to the case/frame, and adjustment is achieved by slackening the tabletop bolts and tapping the top to move it relative to the mechanism and frame/case. It is sometimes necessary to lift the top and expand the untapped mounting holes a mm or so to get enough clearance to adjust the top, and you may have to source socket head bolts to replace hex head ones if the bolts clashing with the frame limits the amount of adjustment you can achieve.