3M-Matic 800rf Case Sealer Adjustments
Copyright 1999, 3M IPC. All rights reserved. 3-21
3-27. One-Way Tension Roller
Specification
Adjust the one-way tension roller so that it slips
under a tangential force of 1 to 2 lbs. [0.5 to
0.9 kg]. Refer to Figure 3-27.
Figure 3-27. One-Way Tension Roller Adjustment
Measurement
1. Wrap a cord or small strap (non-adhesive) 4 to 6
turns around the tension roller.
2. Attach a spring scale to the end of the cord or
strap.
3. Pull the spring gauge until the one-way tension
roller slips. The spring gauge should read 1 to 2
lbs [0.5 to 0.9 kg] when slippage occurs.
Adjustment
Turn the self-locking adjusting nut to adjust the
holding force (CW  increases holding force,
CCW  decreases holding force).