Tweco 252i Fabricator - Manual (Page 52)

FABRICATOR 252i INSTALLATION/SETUP
INSTALLATION/SETUP 3-22 Manual 0-5155
3.16 Wire Reel Brake
The wire reel hub incorporates a friction brake which is adjusted during manufacture for optimum braking. If it is
considered necessary, adjustment can be made by turning the tri-lobe nut inside the open end of the wire reel hub.
Clockwise rotation will Tighten the brake. (Refer to Figure 3-16).
Pressure Adjustment
Knob
Wheel Brake adjusting tri-lobe nut
Art # A-10508_AB
Figure 3-16: Wire Installed
CAUTION
Excessive tension on the brake will cause rapid wear of mechanical wire feed parts, over heating of electrical
componentry and possibly an increased incidence of wire Burnback into the contact tip.
NOTE
Correct adjustment will result in the wire reel circumference continuing no further than 3/4" (19 mm) after
release of the MIG Gun trigger switch. The wire should be slack without becoming dislodged from the reel.
3.17 Shielding Gas Regulator Operating Instructions
!
WARNING
This equipment is designed for use with welding grade (Inert) shielding gases only.
NOTE
Shielding Gas is not required if the unit is used with self shielded FCAW (flux cored arc welding) wires
Shielding Gas Regulator Safety
This regulator is designed to reduce and control high pressure gas from a cylinder or pipeline to the working pressure
required for the equipment using it.
If the equipment is improperly used, hazardous conditions are created that may cause accidents. It is the users
responsibility to prevent such conditions. Before handing or using the equipment, understand and comply at all
times with the safe practices prescribed in this instruction.