Everlast POWER i-MIG 253DP Operator's Manual page 13

Section 1
set the unit up to operate based off fully tested
algorithmic settings chosen by factory welding engi-
neers. The user only needs to adjust welding Amps
to match the thickness of the metal being welded.
Then unit's programming automatically sets the
balance of the relevant parameters. The unit's
programming allows fine tuning of the arc length
and wire stick out with the use of the Voltage/Trim
adjustment and Inductance control. The machine
can be operated synergically in standard MIG
mode, and Single Pulse Mode. For Double Pulse
Mode, the half cycles are synergically adjusted (see
full explanation found later in this manual in the
detailed Pulse MIG explanation found later in this
manual)
5) Pulse MIG operation. See full details in "Pulse MIG
section".
6) Adjustable Pre/Post Flow Control. The Pre and
Post-Flow control feature is designed to improve
weld quality at the beginning and end of the weld
where porosity and oxidation is likely to occur. Pre
and post flow time is manually adjusted up or down
based off of desired shielding effect to prevent po-
rosity. Of course, the flow times can be shortened
to conserve gas if pre and post weld shielding of
the gas is not a concern. A short Pre-Flow time of
about .3 to .5 seconds and a Post-Flow time of
about 2 to 3 seconds is a reasonable starting point
when employing these features. Keep in mind that
a long Pre-Flow time will delay the arc start and
wire will not feed the wire until the Pre-Flow time is
satisfied. Add more flow time if porosity or oxida-
tion or excessive discoloration is noticed at the be-
ginning and end of welds. Hold the gun in place
over the cooling weld until post flow has terminat-
ed or the effect will be lost and gas will be wasted.
7) Slow Run-in of Wire. This feature improves arc
striking quality in MIG modes by helping prevent
arc stuttering (machine gunning) and push-off dur-
ing arc initiation by slowing the wire speed until the
arc is established. Once the arc is established, the
wire feed speed automatically begins to rapidly
ramp up to weld at the desired wire speed/Amps.
Note: The slow run-in feature prevents the opera-
tor from taking accurate measurements of wire
feed speed manually as the wire will feed slower
until the arc is struck and maintained. This is not
an adjustable feature and cannot be deactivated.
8) Spool Gun and Push-Pull Gun Modes. The Power i-
MIG 253DPi is well equipped to handle the alumi-
num welding needs of most customers by being
both spool gun and push-pull gun ready. The unit
Introduction and Specifications
can handle several different Everlast spool gun
models, but the most capable is the 300 amp, Par-
ker® DSP 360A spool gun. However, for profes-
sional fabricating and repair needs, the Parker®
SGP 360A Push-Pull Gun is an excellent choice to
handle welding duties that require serious or fre-
quent aluminum welding capability. The pull motor
on the push-pull gun is synchronized with the main
wire feeder in the welder cabinet to weld seam-
lessly with larger rolls of aluminum wire. When
coupled with a push-pull gun, the pulse feature of
the Power i-MIG 253DPi can greatly increase the
quality and speed of out-of-position welds com-
mon in production welding applications of alumi-
num. NOTE: Operation of the welder with the
Push-Pull gun may require the purchase of addi-
tional Push-Pull drive rolls to match the wire di-
ameter used. Also make sure that if welding alu-
minum or bronze with the push-pull gun, or the
standard MIG gun, the main feeder drive rolls are
changed to the U groove type and that the
grooves match the diameter of the wire used.
The U-shaped groove prevents deformation of
the soft aluminum and bronze wire as the wire is
fed. This prevents feeding problems in both the
long and short terms.
Basic Welder Design and Construction. The Power i-
MIG 253DPi features an intuitive control panel and cou-
ples it with digitally controlled IGBT inverter design that
produces a stable arc while conserving energy. Everlast
utilizes quality components from US, European, and
Asian based companies to ensure reliability and parts
commonality. Major control components are a plug-
and-play design which allows rapid diagnosis and a
quick repair of the welder. Welding parameters can be
infinitely and continuously adjusted throughout the
range, offering instant welding response for maximum
welding control.
Installation. The Power i-MIG 253DPi is built with both
durability and convenience in mind. It is considered
ideal for circumstances where portability is needed.
Critical components are protected by conformal
coatings to make the welder environmentally resistant
and has a water ingress rating of IP21S, (the standard in
the welding industry to protect from vertically dripping
water). However, some common sense care should be
exercised to make sure that the welder offers the safest
and best performance. Please note the following items
regarding safe and proper welder operation to ensure
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