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REAMING | ALVAN® Reaming Systems by S.C.A.M.I.®

TIR Adjustment

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1

2

4 opposite side

3 opposite side

Step 1: Place the tool into the machine spindle. Make contact with the four radial adjustment screws in a concentric fashion (this results in equal pressure surrounding the tool). Tighten #1, then #3, followed by #2 and #4.

Step 2: Swipe the dial indicator around the ground portion of the arbor near the coolant outlet holes to verify the TIR. The TIR should be within 0.0005” (as close to 0 as possible). This will ensure the TIR check on the cutting teeth will be more true. It also means the arbor is running true to the shank. Step 3: Once the TIR is checked on the arbor, check the TIR on the cutting teeth. Rotate the tool counterclockwise to avoid chipping the cutting teeth.

Clamping Screw

Step 4: Tighten down the central clamping screws. During the tightening, the tool body will shift slightly. Repeat the TIR check on the cutting teeth and adjust as necessary.

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