Replies

1. 
   mudman | Mar 04, 2006 08:56am | #1

   Where did you get the motor? is it a 110 or 220 volt motor? Is it a two speed? Did you reciently replace the tires? was the old motor 1700 RPM?

   Sounds like the motor is fast.

   Mike

2. 
   PeteBradley | Mar 05, 2006 12:24am | #2

   Did you change any pulleys? Are you sure the motor is 1725 and not 3450?

   Pete

1. 
   geppetto425 | Mar 07, 2006 08:15pm | #3

   Sorry for not getting back to you sooner. This motor is a Leeson 2HP, 1740 rpm, heavy duty, 115/208-230VAC. I did not come with a pulley, I figured out what size I would need so the bandsaw wheels would go just over 3000 feet/min. See below. It wasn't really clear to me how exactly to hook up the wiring for 220 so I'm just wondering if I messed it up somehow.Measure the outside diameters of the two pulleys and subtract about 0.15 inches from each (assuming the outside of the belt is nearly flush with the OD of the pulley, this will be the pitch diameter for an A or 4L size belt). Divide the smaller by the larger and multiply by the motor nameplate speed (probably 1725 to 1740 rpm). This is the wheel speed in revolutions per minute. Blade speed is simply the wheel speed times the wheel diameter (in inches at the tire surface) times pi (3.1416...) divided by 12 (inches per foot). That's blade speed in feet per minute. It should be somewhere around 3000 feet/min for wood. Hope this helps.

1. 
   JohnWW | Mar 07, 2006 08:50pm | #4

   What size are the wheels on the band saw, and what size are the pulleys on the motor and the saw? 

   I don't believe it is possible to hook up an induction motor so that it would go faster than the rated speed but you should double check the wiring just to be sure. 

   When following the wiring diagram, be sure you are using the correct drawing for the voltage you are using and then group the wires according to the drawing, double and triple checking as you go along, the drawings can be cryptic. 

   If you can't get the wiring to match what is on the diagram, call the manufacturer, occasionally they make mistakes, changing the colors or numbering on the leads without updating the wiring diagram.

   John W.

   Edited 3/7/2006 3:08 pm ET by JohnWW

2. 
   PeteBradley | Mar 07, 2006 11:42pm | #5

   You should not be able to change the motor speed on a typical motor by miswiring it.You calculation sounds ok, but only if the smaller pulley is on the motor. The full formula is available at:http://www.newwoodworker.com/ref/bndswbldsped.htmlWhat was the previous motor, and what kind of saw is this? Most likely your previous motor was a 1725, so no change in pulley diameter would have been necessary.Pete

3. 
   gb93433 | Mar 08, 2006 02:18am | #6

   It depends a lot on the saw you have. My Oliver runs at about 5,000 fpm. Years ago I worked in a shop where we did millwork and the largest bandsaw ran at about 10,000 fpm.

   Most tires I have seen on small saws need to be glued on unless they are a different type just for the saw.