3M 800a VCR User Manual


 
25
12-OPERATION (continued)
Troubleshooting Guide
Correction
Check machine speci cations.
Boxes are narrower than
recommended, causing slippage
and premature belt wear.
Replace drive belts
Adjust the box height adjustment
with the crank
Readjust compression rollers
Replace spring holder
Reduce spring pressure
Replace friction rings
Adjust belt tension
Check power and electrical plug
Evaluate problem and correct
Replace belt
Tension to 3.5 kg [7 lbs] per
adjustment section
Lubricate column bearings
Replace column bearings
Reposition tape drum
Check box speci cations
Cause
Narrow boxes
Worn drive belts
Top taping head does not apply
enough pressure
Top ap compression rollers in too
tight
Taping head applying spring
holder missing
Taping head applying spring set
too high
Worn or missing friction rings
Drive belt tension too low
Electrical disconnect
Motor not turning
Worn belt
Excessive belt tension
Dry column bearings
Defective column bearings
Tape drum not centered
Box aps not of equal length
Problem
Drive belts do not convey boxes
Drive belts do not turn
Drive belt break
Squeaking noise as boxes pass
through machine
Tape not centered on box seam