Climax AUTOBOREWELDER BW3000, Руководство по эксплуатации, Страница: 82 / 150

Page 66 BW3000 Operating Manual
5. Remove the conduit end from the hard surface.
6. Jog the full length of wire out of the conduit, watching closely for any dis-
tortion in the wire.
If the feed roll pressure is just right, the wire that was inside the conduit should not
have any “sine wave” effects—it should be “crinkle” free. Tighten the feed rolls
slightly. Then, recheck for the sine wave effect. Repeat this until the effect appears.
If the feed roll pressure is too tight, the wire column will fail just after the feed
rolls. There will be a visible crinkle or sine wave in the wire. Back off the pressure
on the rolls until the effect disappears. This setting will be the highest possible feed
roll pressure.
In other words, the wirefeeder drive rolls should be set so that, when a stoppage
occurs, the wire feed rolls slip and the wire does not crinkle. As mentioned earlier,
this is the highest possible tension. In most cases, CLIMAX recommends a wire-
feed setting well below this.
For mild steel, 0.035" diameter wire, set the feed roll pressure from 2.5 to 3 on the
adjuster barrels.
T
IP
:
Welding wire varies in consistency, so a feed roll pressure that was right
for one wire may be too much for another wire. With each new wire, you
may have to re-adjust the feed roll pressure.
5.2.4 Torches, conduits, and cables
5.2.4.1 Maintaining torches and extensions
Torch maintenance includes cleaning or replacing the liners and inspecting diffus-
ers, tips, and nozzles for wear. Inspect the torch and extension threaded ends where
they mate for “dings” and burrs. These areas require complete electrical contact
and gas seal.
5.2.4.2 Maintaining conduits
Conduit maintenance includes an inspection of the O-rings that seal each end of
the conduit in its part. The O-rings should be lubricated to allow easy assembly
and disassembly. If the O-rings are cracked, worn or otherwise compromised,
replace them.
The conduit liner can be blown out to remove foreign matter that might restrict
feeding. If the liner needs to be replaced, see Section 5.2.4.3 on page 67.