Tweco 181i Fabricator - Manual (Page 49)

Fabricator 181i
Manual 0-51 91 3-19 INSTALLATION, OPERATION AND SETUP
3.17 Changing the Feed Roll
To change feed roll remove the feed roll retaining screw by turning in an counterclockwise 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 023"(0.6mm) -.030" (0.8mm) diameter hard
wires. Select the roller required with the chosen wire size marking facing outward.
GROOVE “B” GROOVE “A”
GROOVE “A” SIZE GROOVE “B” SIZE
A-09583
Figure 3-13: Dual Groove Feed Roller
Feed Roll
Retaining Screw
Feed Roll
Art # A-09584_AC
Figure 3-14: Changing the Feed Roll
3.18 Wire Reel Brake
The wire reel hub incorporates a friction brake which is adjusted during manufacture for optimum breaking. If it is
considered necessary, adjustment can be made by turning the large nut inside the open end of the hub clockwise
to tighten the brake. Correct adjustment will result in the wire reel circumference continuing no further than 3/8"
(10mm) - 3/4" (20mm) after release of the trigger. The electrode wire should be slack without becoming dislodged
from wire spool.
CAUTION
Overtension of brake will cause rapid wear of mechanical WIREFEED parts, overheating of electrical
components and possibly an increased incidence of electrode wire Burnback into contact tip.