Bandsaw Problems

cheif kaiser

I have a record power bandsaw BS250 and for some reason it all of a sudden seems to be running really fast, so much so it is actually a little frightening. At first I though I was imagining it but I was never scared to put my hand close to the blade and now I feel as though it's going to take my fingers off.

Could anyone suggest what could cause it to run too fast?

Alun

That's a weird one.

As far as I know most common faults in single phase induction motors (faulty start/run capacitors or centrifugal switches) result in the motor either not starting at all, too slowly or running very lumpily, not running too fast. The max speed of such a motor is determined solely by the frequency of the supply (fixed) and the number of poles per phase winding (also fixed.) The BS250 is also a single speed machine so no chance that a pulley has slipped onto a higher speed setting somehow.

The only thing I can think of is that before now, some fault was causing it to go too slowly, and that somehow the fault has cured itself and it's now running at the correct speed. You should always be scared to put your hand too close to a bandsaw blade, as it will take your fingers off, whatever speed it's going at!!

cheif kaiser

Thanks Alun, I think you may actually be correct, I changed the blade recently and think that may have resulted in it going faster than I was used to. The pieces I cut are fairly small so I'll have to make a gig of some sort to keep my fingers a little further away!

Alun

Possibly the blade was slipping before, and now it's been replaced and re-tensioned it's back to normal again.

peter bermingham

Push stick you could use two one to push one to hold stock against the fence trust me i know that happens when you get caught in a saw got hung in a table saw and took half me thumb off it happened that fast i didn't know it was gone until i seen the blood