Feed Roller Pressure Adjustment; Changing The Feed Roll - Thermal Arc Fabricator 211i Operating Manual

INSTALLATION/SETUP

3.11 Feed Roller Pressure Adjustment

The pressure (top) roller applies pressure to the grooved feed roller via an adjustable pressure screw. These
devices should be adjusted to a minimum pressure that will provide satisfactory WIREFEED without slippage. If
slipping occurs, and inspection of the wire contact tip reveals no wear, distortion or burn back jam, the conduit
liner should be checked for kinks and clogging by metal flakes and swarf. If it is not the cause of slipping, the feed
roll pressure can be increased by rotating the pressure screw clockwise.
Before changing the feed roller ensure that the mains supply to the power source is switched off.
The use of excessive pressure may cause rapid wear of the feed rollers, shafts and bearing.

3.12 Changing the Feed Roll

To change feed roll remove the feed roll retaining screw by turning in an anticlockwise direction. Once the feed
roll is removed then to replace feed roll simply reverse these directions.
A dual groove feed roller is supplied as standard. It can accommodate 0.6/0.8mm diameter hard wires. Select the
roller required with the chosen wire size marking facing outward.
Manual 0-5225
GROOVE "A"
GROOVE "B" SIZE
Figure 3-10: Dual Groove Feed Roller
Art # A-10428
Figure 3-11: Changing the Feed Roll
3-13
WARNING
CAUTION
GROOVE "B"
GROOVE "A" SIZE
A-09583
Feed Roll Retaining Screw
FABRICATOR 211i
INSTALLATION/SETUP