I just purchased a Delta Contractor’s saw with an after market motor that did not fit motor mount.
When I bought the saw, the motor was held in place with only 2 bolts, one hole drilled in the motor to accommodate saw motor mounting plate.
I made an aluminum plate to fit between motor and motor mounting plate. I used a piece of 3/4 inch plywood as a template.
I tried to align motor and drive shaft by eye and square.
I turned the saw on and hear excessive vibration and the pulley on the shaft of the motor wants to run off the shaft of the motor.
What is your diagnosis?
Replies
If the drive belt is old, it probably has taken a set. That will cause lots of vibration, for sure. I use Fenner link belts on everything. They will make almost any machine work more smoothly. You can pick them up through most any woodworking suppy outfits. You can also get contractor's saw upgrade kits, where you get a Fenner belt and machined round pullies.
When you say that the pulley wants to "run off the shaft of the motor" do you mean it is sliding on the shaft?
John White
(Former expert and retired FWW Shop Manager)
I am using the Fenner link belts. The pulley on the motor shaft wants to work off the end of the shaft despite locking closer to the motor. I have tried to align the pulley on the shaft of the motor to the pulley on the arbor of the saw. I have had previous table saws but this problem is a real mystery to me.
Also, I can tell the vibration of the saw is not right. The legs seemed to be reasonably square and saw is level. I added two angle iron cross braces to replace the support of the saw dust chute which was missing.
One thought is the pulley shaft holes may be too large so that when you tighten the locking screw the pulley tilts.
To help narrow things down, I presume you have run the motor without the belt, haven't you?
I will try to run the motor without the belt. More to follow after a trial run.
I should have mentioned to try it without a blade in as well!!
Ed
Wow John -
You retire and all of a sudden you become a "former expert?" Did you forget everything you learned? I think you might have retained a piece of knowledge or two. ; )
Edited 2/14/2009 1:53 pm ET by ThreePuttJoe
Since you say that the motor pulley wants to come off of the shaft, my first thought is that your pulleys aren't in the same plane. This would cause the belt to run at an angle between the pulleys and get forced "straight" as they pass thru each pulley.
It would look something like this:
...|
../
./
|
Loosening the pulleys and moving them into the same plane should help quite a bit.
Edited 2/15/2009 12:32 pm by Dave45
Edited 2/15/2009 12:33 pm by Dave45
Edited 2/15/2009 12:34 pm by Dave45
Edited 2/15/2009 12:34 pm by Dave45
This forum post is now archived. Commenting has been disabled