640 Doran Scale Exam Table Checking / Adjusting Arm Alignment on Linear Scale Test and Repair

Checking/Adjusting Measuring Arm Alignment

To Check Measuring Arm Alignment

1.Pivot measuring arm out as shown.

2.Using a carpenter’s square, check to see if the measuring arm is square with the back of the table top.

3.If necessary, adjust arm until square.

To Adjust Measuring Arm

Using a 3/32” allen wrench, adjust set screw in / out until measuring arm is square with the back of the table top.