Straight Line Rip Saw Problems 4: Troubleshooting Wedges

      Checklist for identifying and correcting problems that can cause a straight line rip saw to cut out of parallel. January 4, 2007

Reprinted with permission from Diehl Machines,

Troubleshooting Wedges
Probable Cause
How to Correct

When sizing the material, the saw cuts one end wider than the other.

The stock guide rail is out of adjustment.

Leading end is wider than the trailing end. Adjust the left end of the guide rail away from the machine.

Leading end is narrower than the trailing end. Adjust the right end of the guide rail away from the machine.

Material is being pushed sideways.

Check for slivers in the machine. Clean the machine.

Check the feed rolls for not turning. Repair or replace.

Check the infeed conveyor or roller stand (if used) for square to the feed chains. Normally only affects long material.

Stock guide is not locked to the guide rail as material is fed into the machine.

Operator is not holding stock against the stock guide when feeding it into the machine.

See other articles in this series at:
Erratic Cuts
No Glue Joint
Edges Not Square

Reprinted with permission from Diehl Machines,

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