3M 40800 User Manual

27 

12-OPERATION (continued)

12.9  Troubleshooting Guide (continued)

  The tape leg on the front of the
  case is too long

  Squeaking noise as boxes 
  pass through machine

  Tape not centered on box 
  seam

  Drive belts break

   The tape is threaded 
   incorrectly

  The tape tension is too low

  The knurled roller drags

  Tape tracks to one side or 
  drags on the support tabs of
  applying frame

  Taping heads is not set up 
  properly

  Dry compression rollers

  Defective column bearings

  Tape drum not centered

  Centering guides not centered

  Box fl aps not of equal length

  Check machine specifi cations
  Boxes are narrower than
  recommended, causing
  slippage and premature belt
  wear

  Replace drive belts

  Adjust the box height adjust-
  ment with the crank

  Reduce spring pressure

  Lubricate compression rollers

  Replace column bearings

  Reposition tape drum

  Adjust centering guides

  Check box specifi cations

  Worn belt

  Replace belt

 (continued on next page)

2011 June

700a-NA