4 Maintenance
4--21
F--9999--8 Build 8 Issue 1
TANGENT
POINT
4.0”
(101.6mm)
Fig. 4 -24. Tab
4.2.3.5 Tab Position Calibration
Tab position calibration sets two dimensions at the same time: the tab size and the center line of tabcut on
the paper. Measure tab at point along side where small straight side meets curve near top of tab. This is
approximately 1/3 the distance down from edge of paper. (See Fig. 4-24. )
Step: 1. Run two sheets through the machine, if measurement equals 4.0 inches (101.6mm) as set on
handwheel, proceed to Step 4. If not, perform Steps 2 and 3, then perform Steps 4 through 8.
Note ! When Tab Size handwheel Is rotated both knife packages move simultaneously. The smaller
the size selected on Tab Size handwheel relates to closeness of knife packages.
Step: 2. Remove one locking screw on one knife package that holds nut in place. There is one left hand
and right hand threaded, acme screw that operates each knife package.
Step: 3. Adjust one knife package to achieve the 4.0 inch (101.6mm) dimension by moving the package
backwards or forwards.
Note ! The package that you move depends which way the tab is out of center. This can be
determined by turning a sheet over and indexing both together, if they do not back each
other up, move the knife package that helps to bring the tab toward the center of the sheet.
Run another sheet through and measure the tab. If size is correct proceed to step 4. If not,
repeat this method until correct.
Step: 4. Run two sheets of paper through machine.
Step: 5. Use the machine speed control to slowly index both sheets together, ensuring tabs align with each
other.
Step: 6. Flip one sheet over, then slowly index sheets together again. Tabs should back up each other if
knife packages are correctly aligned.
Step: 7. If tabs do not back up to each other, move both knife packages half the distance that the tabs are
off by. Direction to move knife packages depends on which side tabs are out of center.
Note ! Ensure both knife packages are moved equally to maintain 4.0 inch (101.6mm) tab
dimension.
Step: 8. Reinstall locking screws and tighten.
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