CTM 360a series, Maintenance And Service Manual

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GENERAL SETUP PROCEDURES
5-7
LABEL STATIC TEST
It’s important to know if the Applicator can consistently place labels in the same place over and over on the
product. Without knowing this, you will not know whether label placement problems that occur on the line
are due to the Applicator or to the product being labeled. When the setup on the Nose Assembly (section 7)
is finished, run through the following steps to verify your setup is complete.
TEST FOR TAMP OR AIR BLOW
1) Make sure the labels are consistently stopping in the same place on the Label Pad or Grid. If this is OK
go to step 7; if not, go to step 2.
2) Check Label Stop. One label should be completely dispensed off the liner while the next label should
be 1/32” away from the Peel Edge. If this varies more than 1/32” with each cycle, reset the Label
Sensor. If you still have the problems go to the Troubleshooting Section of the 360a Manual and follow
its suggestions. When this is corrected, go back and try the static test again. If this was OK, go to
step 3.
3) Make sure the Label Pad or Grid surface is clean. If clean, go to step 4. If not, clean and re-try the
static test again.
4) Make sure the vacuum is set right. If the label flutters when feeding across the Pad, the vacuum is too
high. If the label falls off or moves after the label has left the liner, the vacuum is too low. If the label
feed looks smooth, go to the next step.
5) Work with the air pressure and the position of the Air Assist Tube until the label feeds more
consistently onto the Pad or grid. Re-try the static test. If the results are still not good enough, go to
step 6. Otherwise go to 7.
6) Make sure you are working with good label stock. Try another roll of labels and see if you get the same
results.
7) Check the distance from the Label Pad or Grid to the product. If the distance is too large, the labels may
float too much. Try lowering the Applicator so the Label Pad or Grid just clears the product (within
1/8”).
8) If the Applicator Type is a Tamp or RVB, make sure the Label Pad is made for the label you’re using.
Exposed holes on the Pad will reduce the available vacuum used to hold the label in place and results
will be uncertain.
9) If the Applicator Type is an Air Blow, make the Air Tube pattern is correct. If the Tubes are too heavy
on one side, the label will not stack well.
TEST FOR MERGE
1) Apply one label to a product. Run the same product pass the Applicator at the same speed and none of
the variables in the Applicator changed. If the two labels stack, you are finished.
2) Check label stop. If it is not consistent, reset the Label Sensor. Retry static test. If good you are done; if
not make sure the product is being consistently presented to the Applicator.