Threading Welding Wire - Hobart Welding Products Handler 187 Owner's Manual

5-10. Threading Welding Wire

Tools Needed:
Open pressure assembly. Make sure
feed roll is set to correct groove to
match wire size (see Section 7-4).
Tighten
Be sure that wire is positioned in proper drive
roll groove and wire is laying in the groove.
Close and tighten pressure assembly,
and let go of wire.
Press gun trigger until wire comes
out of gun.
1 2 3
.
Pull and hold wire; cut off end.
.
Use pressure indicator
scale to set a desired
drive roll pressure.
Pressure
1
Indicator
2
3
Scale
4
Remove gun nozzle
and contact tip.
Be sure that tip matches wire diameter.
Reinstall contact tip and nozzle.
4
6
5
Hold wire tightly to keep it
from unraveling.
6 in.
(150 mm)
Push wire thru guides into gun;
Turn power on. Be sure that Voltage range
switch is set to range 1, 2, 3, 4, 5, 6, or 7 to
feed wire. Rotate knob until it "clicks" into det-
ent. Wire will not feed if range switch is set
between ranges.
Feed wire to check drive roll pressure.
Tighten knob enough to prevent slipping.
Cut off wire. Close door.
1 Wire Spool
2 Welding Wire
3 Inlet Wire Guide
4 Pressure Adjustment Knob
5 Drive Roll
6 Gun Conduit Cable
Lay gun cable out straight.
4 in.
(120 mm)
continue to hold wire.
Tighten
1
2
3
4
Ref. 804 623-B / Ref. 246 669-A
OM-228 187 Page 19