Tweco VA 4000 Ultra-Feed - Manual (Page 24)

ULTRAFEED VA 4000
3-2 September 18, 2012
3.04 Installation Of Welding Wire Spool
Refer to Figure 3-1.
NOTE
The wire spool hub supplied with the unit is
provided for mounting a 12 inch diameter
spool of wire. Optional adapters are available
allowing a 8 in diameter spool of wire or a 14
pound coil of wire to be used.
1. Remove the wire spool hub nut by turning
counterclockwise.
2. Slide the spool of wire over the wire spool hub,
making sure that the alignment pin on the hub
enters the hole in the backside of the wire spool.
3. Replace the wire spool hub nut and turn clockwise
to a snug position.
NOTE
Install the welding wire spool so that the wire
feeds from the bottom of the spool into the
input wire guide.
Art # A-07375
Wire Spool Hub Nut
Hub Tension Bolt
Alignment Pin
Additional Wire Spool Support
Shaft Holes (with plugs)
Figure 3-1: Installing Welding Wire Spool
3.05 Adjustment Of Spool Tension
Adjust the wire spool tension so that the wire will feed
freely into the input wire guide. However, the spool of
welding wire must not “coast” when wire feeding stops.
To adjust the wire spool tension, tighten or loosen the
hub tension bolt accordingly (Refer to Figure 3-1).
NOTE
Excessive tightening of the hub tension bolt
will result in a shorter motor life.