3M-Matic 800rf Case Sealer Troubleshooting
Copyright 1999, 3M IPC. All rights reserved. 6-1
6-1. General
Read the Theory of Operation in Section 5, so that the operational characteristics of the machine are understood.
Additionally, refer to Pneumatic Component Testing and Electrical Fault Conditions at the end of this section
along with the PLC Addendum and its PLC Troubleshooting section.
6-2. Troubleshooting Guide
The following Troubleshooting Guide lists some possible machine problems, causes, and corrections.
Problem Cause Correction
The tape is not centered on the case Cases not centered on conveyor. Check/adjust the infeed
seam. centering function and the side
belt drive centering linkage.
Case flaps are not of equal length. Check case specifications.
Tape drum is not centered. Reposition the tape drum.
Drive belts do not turn. Electrical disconnect. Check power and electrical plug.
Side belt drive motor overload Set to correct amperage.
circuit breakers (OL1 or OL2) not (1.4 amps)
at correct amperage setting.
Motor not turning. Evaluate problem and correct.
Drive belt tension too low. Adjust Side Belt Tension (refer
to Section 3).
Worn rubber drive ring(s). Replace ring(s).
Drive belts do not convey cases. Side belt pressure too low. Check/adjust Side Belt Pressure
Regulator at the Pneumatic
Control Panel to 40 PSIG.
Worn drive belts. Replace drive belts.
Top flap compression rollers set Reposition compression rollers.
too far inward.
Tape tension is too high. Check threading path, tension
adjustments, and operation of
taping head rollers.
Taping head applying spring Reduce spring tension.
tension set too high.