Demtech Pro-Wedge VM-20 Operator's Manual page 16

Rev. F, December 2020
Changing spring configuration:
Removing-upper contour roller assembly:
Remove screw from the end of the shaft that the material guide plate (#12,
Figure 2) pivots on, then slide material guide off of shaft and set aside.
Remove the two Phillips head screws that attach the upper contour roller assembly
mount plate (#1, Figure 5) to the nip arm and remove contour assembly from the
unit. You may need to move the heating wedge fore or aft for access with
screwdriver.
The individual upper contour rollers and springs can now be configured to match the
material you will be welding.
Configuration Chart on the previous page.
Pro-Wedge VM-20 Operator's Manual
1
2
3
Figure 5
See the Upper Contour Roller Assembly Spring
Page 13