29
Section 3 Operation
STICK ARC STRIKING METHODS
1.Make sure the unit is turned on and the boot cycle has finished.
2.Select the Stick Process on the Selector.
3.Make sure the electrode holder is in the Positive connector and the work clamp is in the negative connector.
4.Select the Amp level desired. No voltage adjustment is available. Select and adjust Hot Start Amps % (Intensity) to improve starting reliability.
Use higher amounts of Hot Start %, over 50% with difficult to strike rods, or rods that aren
’
t fresh or out of a sealed metal can.
5.Use the arc force control to select the desired arc characteristics, creating the desired arc characteristic and amp response needed to maintain
the arc. Cellulose electrodes are not recommended for use, including E6010. In some circumstances E6011 may be used, but perfor-
mance may be erratic or dependent upon brand. The arc force control setting will vary from person to person as well, with different rod
angles, positions, and arc lengths all factoring into the arc force control performance.
If you are new to using an inverter welder, there are
some aspects that will seem different. One of the main ones is that the arc is better controlled in most situations by
“
pushing in
”
when the
arc seems to get weak or unstable and the arc force will kick in as the voltage drops.
Holding too long of an arc will signal the inverter to
shut down and to terminate welding output. This threshold is shorter than most transformers, and an extremely long arc cannot be main-
tained. However, with a little practice, the arc will be easy to manage with some adaptation in technique.
6.Strike the arc with either the tapping method or the match strike method. Beginners usually find that the match strike method typically yields
the best results.
Tapping
Scratch/Match
HELPFUL HINT:
Pay particular attention to the Arc Force setting as it affects the aggressiveness of the arc and the amp response. Set the Arc force to approxi-
mately 30
-
50% and readjust it from that point to find the optimum setting. Adjust in increments of 5% up or down from there to obtain the best
results Usually, an increase in the arc force for cellulose based flux welding rods is helpful. Lowering the Arc force setting is generally desirable
for rods iron powder/Titania based flux. Too much arc force will create overheating of the welding rod, and even cause them to flame up. Too
little can lead to sticking and arc snuffing. Use the Hot Start features to improve arc starting and cut down on failed arc strikes. Hot Start Amps
refers to the % over the set amps that the amps will be boosted during arc striking until the arc is established. Hot Start Intensity controls the
aggressiveness of the arc starting. Start by setting Hot Start to somewhere between 30% and 50%. Add more as needed. Hot start time is auto-
matically regulated Adjust in increments of 5% up or down to obtain best starting results.
Once started, allow the metal to fill the puddle as the rod travels forward. Be sure to try to separate the difference between the slag and the mol-
ten pool of metal. The slag will coalesce behind the puddle if travel and rod angle is correct. Do not let the slag travel in front of the puddle.
Keep the top of the rod inclined to the direction of travel around 10
-
20 degrees while welding in the flat position (Electrode holder should be in
front and inline of the puddle). To begin, simply start the arc, and then drag the rod slowly and carefully along the metal, allowing the rod flux to
provide a standoff between the metal filler and the puddle. Be sure to keep feeding the rod steadily downward into the puddle as the rod melts.
In the case of E6011, a slight stepping motion in front of the puddle about
1/8”
-
1/4”
in front of the puddle can be used as a key hole opens up in
the weld joint, ahead of the puddle. This is also called
“
whipping
”
the rod. Do not flip the end of the rod away from the puddle in a arc motion or
the arc may terminate while using E6011. When experience is gained, numerous manipulation methods may be used with rods such as E7018,
7014, 6013, and 7024. Weave the rod no more than 2.5 times the width of the welding rod. To begin weaving, weave small, tight patterns simi-
lar to C
’
s, cursive E
’
s, V
’
s, or even figure
8’
s.
IMPORTANT!
This unit is not designed for operation with Cellulosic electrodes such as E6010. E 6011 may be used, but some experimentation with brands
may be necessary to obtain the best weld performance. Occasional arc snuffing may be experienced. If you must use E6011, keep the rod firmly
in the puddle and increase arc force and hot start. Do not
“
whip
”
out and raise the rod up.
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