Adjustments
The following instructions have been done at the factory prior to shipping.
However, if it is necessary to disassemble, the following adjustments may have
to be performed.
1. Adjust the length of the air cylinder rods so that they push evenly. Otherwise
the resulting twisting motion can bind the numbering machine. The rods have
been adjusted prior to shipping.
2. Do not over-tighten the shoulder screw, which secures the base of the air
cylinder. If over-tightened, the cylinder may bind. Also, the threads of the
shoulder screw must be sealed, since they extend into the air chamber. This
is done at the factory prior to shipping.
3. The travel of the air cylinders must be adjusted so that the numbering
machine indents (or clicks) at the end of the cylinder stroke. There are no
positive stops for the actuating arms in the Model 250P Numbering Machines
that are factory equipped with air tripping.
Assembly Instructions
The following general instructions apply to assembling the air-tripping
attachment. Since many options are available and most press installations are
customized, no detailed directions are available.
1. Mount the numbering machine to the press.
2. Design and mount a bracket for the miniature roller valve, so that the ram will
activate the valve on the upstroke. Make sure the valve does not open before
the numbering machine leaves the material surface. Bearing on the roller or
directly on the valve button can activate the valve.
3. Assemble the tubing so that the air flows from the supply through the valve
and to the air cylinders. Make sure the air lines are protected from the press.
Check all fittings, they should be air tight.
4. Adjust the length of the piston rods so that the numbering wheel clicks into
position just as the cylinders reach the end of the stroke. Loosening the jam
nut and rotating the piston rod adjust the piston rod. Tighten the jam nut after
adjustment. THIS HAS BEEN DONE PRIOR TO SHIPPING, SO
ADJUSTMENT MAY NOT BE REQUIRED.
5. Adjust the press so that the Model 250P numbering machine will clear the
table at all times during the ram stroke.
Revision # 2.0
