SUGGESTIONS ON THE ADJUSTMENT AND USE OF

1. Centering The Side Dies and Locating The Handle
2. Adjustment For Width of Point
3. Nos. 6900-B Shaper Alignment
4. Shaping More Than One Thickness of Saw
5. Swaging for Proper Tooth Point
6. Effects of Improper Swaging
7. Operating Instructions For No. 6900-BA Air Shaper
8. Lubrication
9. Side Die and Tooth Stop Selector
10. Side Die Grinding Nomenclature
11. Information For Ordering

1. Release the large knurled bushing by loosening the spanner locknut with the spanner wrench.
2. Hold the operating handle above the shaper in a vertical position, adjust the right hand side die by turning the knurled bushing clockwise so that the side die contacts the saw plate in approximately the center of the observation hole in the top of the shaper head.
3. With the operating handle still in the vertical position, adjust the left hand side die by turning the hollow head cap screw into the shaper head until the side die contacts the saw plate.  Use a 3/8" Allen key.
4. Adjust the operating handle to a suitable working position by adjusting the hollow head cap screw outward from the shaper head to lower the handle or into the head to raise the handle.
5. With the adjustments complete, tighten the spanner locknut with the spanner wrench.

With dies ground to 2 degree back clearance: .005"

With dies ground to 4 degree back clearance: .010"

With dies ground to 8 degree back clearance: .020"

This has the advantage of producing less work hardening, and less crumbling of the tooth point.

In some instances the corner produced on the tooth point may not be as heavy as with the older swaging and shaping procedure.  Any reduction in corner, however, is more than out-weighed by the accuracy and precision provided by the No. 6900 shaper and not sufficient to cause a problem.

1. Too wide a point provides more than enough material to produce the tooth point, as called for by the clearances ground into the side dies.  The result is an upward bulge on the tooth, and the width of the point should be reduced.
2. Swaging too thin a point can also cause an upward bulge or bend on the tooth point.   In this case the bend upward is the result of too little material  To correct this condition, leave the cutting edge area of the point thicker by rolling the swage die back, or stopping the action of the swage die just ahead of the anvil.

1. 1/4" air hose is used (same as at service stations).
2. Suggested operating air pressure: 80 lbs. maximum, 60 lbs. minimum.
3. We suggest the use of an air regulator and gauge to control the pressure, in addition to the usual shut-off valve in the air line -- it is not possible to control the pressure with the shut off valve, as it merely restricts the flow and the pressure remains the same.
4. Regulator and gauge should be placed in the air line near the operation, but not attached to the shaper due to the weight.
5. Use of the lubricator supplied with each shaper is recommended to keep the valve and cylinder well lubricated.
6. Speed of cylinder stroke can be controlled by two screws located on the side of the valve directly below the operator's finger tips when the hand is on the valve handle and trigger.
7. Shaper adjustments are the same as those required on an Armstrong No. 6900 hand shaper.

1. Thickness of the saw.
2. Width of the finished point.
3. Standard back and side clearances are 8 degrees x 3 degrees, and will be furnished unless otherwise specified.