3M 3M-Matic 7000r, Instructions And Parts List

Page: 118 / 192

NA - ENG
April 2016
3M-Matic ™ Accuglide 3 - 2 Inch Taping Head
Page 18
Problem
Tape is tabbing on the trailing
leg on the back of the box
The tape end does not stay in
application position in front of
the applying roller
Tape not centered on
box seam
Cause
There is excess tension on the
tape drum assembly and/or the
one-way tension roller assembly
Rollers in the tape path do not
rotate freely
The blade is not cutting tape
properly
The tape is threaded incorrectly
Applying mechanism spring has
too little tension
The tape is incorrectly threaded
Flanged knurled roller overruns
on return of applying mechanism
to its rest position
Applying roller overruns on return
of applying mechanism to its rest
position
The one-way tension roller is not
correctly positioned
The one-way tension roller is
defective
Tape drum not centered
Centering guides not centered
Box fl aps not of equal length
Correction
Adjust the one-way tension roller
and/or the tape drum assembly
Clean adhesive deposits from
the surface, ends, and shafts of
the rollers. Then lubricate roller
shafts. Remove all lubricant from
roller surfaces.
Refer to tape cutting problems
Re thread the tape
Move spring hook to next tighter
hole
Re thread the tape
Adjust tension roller position in
mounting slot to lengthen tape leg
There should be a slight drag
when rotating the applying roller.
If not, check friction springs and/
or friction pins and replace if
necessary
Position roller in it mounting slot
so that tape end extends beyond
centerline of applying roller
Replace the one-way tension
roller
Reposition tape drum
Adjust centering guides
Check box speci fi cations
Troubleshooting Guide
Toubleshooting
(continued)