Figure 27. Back Gauge Angle - Adjustment for Parallelism
BACK GAUGE CUSHIONS
All shears have some method of protecting the back gauge screw from damage caused by material constantly
striking the back gauge angle. On the 0200, 0300, 0400 and 0600 series shears, a Spring Cushion (Figure 28) has been
provided. The spring at the end of the back gauge screw compresses when a heavy blow is made on the back gauge
angle and then returns the angle to its proper setting. No maintenance is required on the Spring Cushions with the
exception of lubrication as indicated on pages 6 and 7.
The 0800 and 1000 series shears are equipped with Air Cushions (Figure 29) on the end of the back gauge screws
because of the heavier service that is required of these size machines. Compressed air in the cylinder of these cushions
affords protection in the same manner as the spring in the Spring cushions.
28