Operation - ESAB Multimaster 260 Manual De Instrucciones

SECTION 3
NOTE
The MultiMaster 260 is shipped with the
GunMaster 250 Gun. Because of the in-
creased heat of the Pulse Welding, it is
recommended that Heavy
consumables be used for .045" diameter
wire.
Recommended Parts:
HD Tip Adaptor - 0558001888
HD Nozzle - 0558001599
HD 3/64" Aluminum - 17765
HD .045" Std - 37286
3.

OPERATION

3.1 Standard CV Operation
The Multimaster 260 Pulse option provides for both standard welding and pulsed
Mig welding. When the STANDARD/PULSE switch is in the STANDARD position
the wire feeder and power source are ready for standard non-pulsed CV Mig
welding. Follow the basic instructions provided with the power source to change
to other welding processes, such as, Tig or Stick welding .
3.2 Pulsed Mig Operation
A. Multimaster 260 Pulse option Set-Up.
1. Set the TYPE SELECTOR and DIAMETER SELECTOR to the alloy type
and diameter being used.
The RED light on the Pulse panel indicates a problem with set-up
parameters. A "Steady" light "On" indicates there is no program for the
material and wire diameter selected. A "Blinking" light indicates the wire
feed speed is out of the recommended range.
Duty
2. See Table 2 for the recommended shielding gases for each wire alloy
type. Set the flowrate at 30 to 40 cfh for argon mixtures.
3. Place the PULSE/STANDARD toggle switch to the PULSE position.
4. Select the wire feed speed for the base material thickness and type from
the chart on the inside of the spool compartment and preset the wire feed
speed on the front panel of the Multimaster 260 using the PRESET
button.
5. Set the ARC TRIM knob to the "0" or center position.
6. Strike an arc by pulling the gun trigger. The ARC TRIM is used to fine
tune the arc length for best arc performance. Turn the knob clockwise
to increase the arc length or counterclockwise to decrease the arc.
B. Process control
1. Use a tip-to-work distance of 3/8" to 5/8". This refers to the distance
between the end of the Mig gun contact tip and the plate or weld puddle.
The tip-to-work distance can also be used to adjust the stability of the arc.
Changes in distance will cause the arc to shorten or lengthen as desired
for best results.
2. For best arc stability, keep the arc on the front edge of the molten puddle
and use a 5 to 10 degree gun angle from the vertical.
3. If the arc is "crackling" or if spatter is excessive lengthen the arc. If the
arc is "fluttering" or difficult to control then shorten the arc length.
11
OPERATION