4 Maintenance
4--25
F--9999--8 Build 8 Issue 1
4.2.4.5 Plastic Feed and Fold Mechanism
The incoming plastic is folded by passing between two roller assemblies just before it reaches the drive
rollers. The space between these rollers determines the sharpness of the fold or crease. The degree of fold
or crease is very important since it determines the ability of the cut piece to open and be picked up by the
sheet. If the fold is too tight, the piece will tend to be slow in opening or will not open sufficiently for the sheet
to pick it up. If the fold is too open, the edge of the sheet may not always find the apex of the fold and the
plastic may go on the sheet with uneven legs. Use three thickness of plastic as a general
gap.
4.2.4.6 Plastic Tip--Die Mechanism
The plastic tip--die package is one of the “key” units of the machine. Unless this device is working properly,
the machine cannot function in the way it is designed to do. Aside from its primary function of cutting off and
making the plastic tip, it also has opener springs to align the strip for the cut and cause the ends to open
even if the Mylar sticks together. These parts are light enough to compress during the cutting but still open
the tip. The first two fingers are located under the die cover so as to open the end of the strip. The outside
finger is located in such a way to insure that the strip is fed out over and under it. The shape of these parts
is very critical since they must perform their function but not interfere with the feeding of the strip. If these
become damaged they must be replaced. When replacing, they must be bent to the exact shape shown on
the drawing to be furnished when your machine is installed.
4.2.4.7 Chip Removal System
The machine is equipped with an automatic chip removal system which pulls the cut--out or plastic chip from
between the dies and deposits it in a waste container. This eliminates the need to sweep up the chips and
insures that the chips are removed.
4.2.4.8 Removing and Replacing the Plastic Tip--Die Unit
The plastic tip--die unit is designed in such a way that it can be easily removed from the machine. To remove,
do the following:
Step: 1. Depress E Stop button and turn air off. This is for the operator’s safety.
Step: 2. Remove the four screws which mount the Nylon in--feed roller and remove this roller.
Step: 3. Set the plastic length handwheel at about 6 inches (152.4mm) and the paper feed handwheel at
about 8 inches (203.2mm).
Step: 4. Remove the pin which connects the drive mechanism to the cutting package.
Step: 5. Remove the three screws which mount the cutting package.
Step: 6. Slide the package toward the feeder and lift to remove.
When re--installing the plastic tip--die unit, carefully do the following:
Step: 1. Follow the reverse of the above procedure.
Step: 2. When connecting the drive mechanism to the cutting package, make certain that the cut--off finger
is horizontal in the “up” position. If it is tilted up it may interfere with the sheet or fail to cut all the
way through the plastic. If it is tilted down, it will interfere with the plastic being fed out.
4.2.4.9 Changing Tab Cutter Knives
This instruction has been revised. See Operation Section.
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