[Rockhounds] 18 inch saw has a problem

[Tim]

You have a misaligned feed, blade, or both. Use a straight-edge and a t-square to figure out which is misaligned with the saw. I.e., the blade shaft should be at exactly a 90° angle with the saw body, and the carriage (actually, the carriage rails, feed screw, AND carriage) should be exactly parallel with the blade. Also, make sure that your blade is perfectly flat, not dished out, and at a 90° angle to the shaft. While you are at it, check the shaft bearings, as worn bearings can produce similar results. 

 

Tim Fisher 
Ore-ROCK-On! 
Email address at  <http://orerockon.com/> http://OreRockOn.com

 

-----Original Message-----
From: rockhounds-bounces at lists.drizzle.com [mailto:rockhounds-bounces at lists.drizzle.com] On Behalf Of rockhounds at adelphia.net
Sent: Sunday, July 27, 2008 5:45 PM
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
Cc: John Siebel
Subject: [Rockhounds] 18 inch saw has a problem

 

MY OLD 18 inch saw stripped the shaft a while back. Had it welded/repaired and now finally got it back together. When I cut a rock now the saw has a gap of about 3/8 of an  inch at the end of the cut  yet is still in contact with the blade at the point the cut started.

At one point the whole delivery system was taken apart.

The saw is similar to the old convington type of design with the screw and saw powered by one motor.

The blade looks to be true.

Any ideas on the problem?

I attached 2 photos

 

 

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