Tweco VA 4000S Ultra-Feed - Manual (Page 25)

ULTRAFEED VA 4000S
Manual No. 0-5135 3-3 INSTALLATION
3.05 Selection And Installation Of Feed
Rolls
NOTE
Refer to feed roll kit drawing (supplied in the
Appendix) to order feed roll kits. Kit includes
4 drive rolls, an input wire guide, a center
guide, and an output wire guide for a specific
wire type and size.
For selection of feed roll styles, refer to Feedroll Drive Kit
Drawing 171435 and Feedroll Chart 375980 in the
Appendix section of this manual.
Style 1: Feed rolls consist of flat smooth top rolls and
double smooth, vee grooved bottom rolls. They feed .024
- .068" hard and tubular wire.
Style 2: Feed rolls consist of flat knurled top rolls and a
double smooth, vee grooved bottom rolls. They feed .030
- .045" hard and tubular wire.
Style 3: Feed rolls consist of double smooth, vee grooved
drive rolls. This style supports 0.035 to 1/16” soft wire.
Style 4: Feed rolls consist of double knurled, vee grooved
grooved drive rolls. They feed .045 - 5/64" hard and tubular
wire.
Style 5: Feed rolls consist of double cog top and bottom
rolls. They feed .045 - 1/8" tubular wire.
Style 6: Feed rolls consist of double U-grooved top and
bottom feed rolls. They feed .035 - 1/16" soft wire.
NOTE
All grooved feed rolls have their wire size or
range stamped on the side of the roll. On rolls
with different size grooves, the outer (visible
when installed) stamped wire size indicates
the groove in use.
Feed rolls are removed by twisting the feed roll retainer
cap and aligning the retaining knob splines with the drive
gear splines. Feedrolls are installed by putting the feedroll
onto the drive gear splines and twisting the feedroll
retainer cap so that the splines rest against the face of
the feedroll.
NOTE
Installation of all styles of feed rolls for this
feeder is identical.
3.06 Welding Gun Compatibility And
Installation
Refer to Figure 3-2.
The Ultrafeed VA 4000 S Separation Unit wire feeder is
designed to be used with most welding guns. In some
cases, a special adapter may be required.
To install the welding gun, simply loosen the gun clamp
knob and insert the welding gun into the feedhead until it
stops. Tighten the gun clamp knob and connect the
welding gun control wires to the gun switch receptacle.
NOTE
Before inserting the welding gun into the
feedhead, make sure the gun clamp does not
extend into the feedhead; otherwise, the
welding gun cannot be properly inserted.
NOTE
Check for gas leaks. If leaking gas, gun is not
all the way into the feedhead.
Art # A-04326
Output Wire Guide
Input Guide Lockscrew
Input Wire Guide
Output Guide
Lockscrew
Gun Clamp
Knob
Center Wire Guide
Figure 3-2: Welding Gun Installation