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Troubleshooting 3M-Matic 800rf Case Sealer
6-4 Copyright 1999, 3M IPC. All rights reserved.
Problem Cause Correction
Tape end does not stay in Tape is threaded incorrectly. Rethread tape.
application position in front of
applying roller.
Flanged knurled roller overruns on Adjust one-way tension roller in its
return of applying mechanism to its mounting slot to lengthen the tape
rest position. leg.
There should be a slight drag when
rotating the flanged knurled roller
due to an internal spring.
If not, remove and check. Replace
flanged knurled roller if necessary.
Applying roller overruns on return There should be a slight drag when
of applying mechanism to its rest rotating the applying roller. If not,
position. check friction spring(s) and replace
if necessary.
One-way tension roller is not Position tension roller in its
positioned correctly. mounting slot so that tape end
extends beyond the centerline of
applying roller.
One-way tension roller is defective. Replace one-way tension roller.
Tape adheres to itself or machine Tape roll is rotating too freely Increase tension on friction brake
frame. (overtravel). tape drum until problem is
eliminated. Excessive tension may
cause tape tabbing.
Tape leg on rear of case is too long. Taping head is not set up properly. Check tape leg length adjustment.
Cutoff bracket hangs up. Check for and eliminate any
interference.