Eastwood MP200i Instructions Manual page 24

IMPORTANT NOTE: These instructions are intended only to provide the user with some familiarity of the Eastwood MP200i. TIG welding is a highly complex
procedure with many variables. If you have no experience with TIG welding; it is extremely important to seek the advice of someone experienced in TIG welding
for instruction, enroll in a local technical school welding course or study a comprehensive how-to DVD and obtain a good quality reference book on TIG welding
as there is a moderate learning curve necessary before achieving proficiency in TIG Welding. Before attempting to use this unit on an actual project or object of
value, practice on a similar material as there are many variables present and settings required when TIG welding different metals such as steel and stainless
steel. It is also strongly recommended that the user adhere to the American Welding Society guidelines, codes and applications prior to producing welds where
safety is affected.
• Turn the Power Switch at the Upper Rear Panel to the "ON" position.
• Slowly open the gas cylinder valve.
NOTE: Always open valve fully to avoid shielding gas leakage.
• Adjust the flow regulator built-in to the Torch Handle. Rotate Counter-clockwise to open, Clockwise to Close.
• Grounding is very important, place the Ground Cable Clamp on a clean, bare area of your work piece as close to the welding area as possible to minimize
the chance of shock. Scrape, wire brush, file or grind a bare area to achieve a good ground to assure safety.
• Use a dedicated stainless steel brush or flap-disc to clean the areas to be welded. Do not use the brush or flap-disc for any other purpose.
• Making sure all your safety gear is in place (Welding Mask, Welding Gloves, non-flammable long sleeve apparel) and the area is completely free of flam-
mable material.
• Although it is a matter of developing a personal style, a good starting point for best results is achieved by holding the tip at a 45° angle backward and
approx. 20° to the right of the weld. Hold the Filler Metal Rod at a 60° angle to the Tungsten Tip. Never allow the Tungsten Tip to touch the welding surface
or material rod. Doing so will quickly destroy the tip and contaminate the weld. If this happens, remove the Tungsten and regrind the tip. It is best to hold
the Tungsten tip 1/8" from the surface.
• With your Welding Shield and all safety gear in place, practice "Forming a Puddle" with the Tungsten Tip. Once you become familiar with this step. Practice
the "Dip and Pull" technique with the Filler Metal Rod and Torch. "Dip and Pull" is the practice of forming a puddle, moving the Torch while maintaining the
puddle and adding filler rod metal to the puddle by "dipping and pulling" as you go; being careful not to allow the Tungsten to contact the puddle or rod.
• To stop welding, pull the Tip back over the weld approx. 1/2" [13mm] then lift to break the arc. Keep shielding gas flow in place for approx. 10 seconds.
• Keep in mind that you MUST let the shielding gas flow over the weld for approx. 10 seconds. Failure to do so will allow the welded area to oxidize as it
cools, compromising the weld integrity.
• Constantly be aware that TIG welding quickly generates heat in the work piece and Torch. Severe burns can quickly occur by contacting hot metal pieces.
• When done, shut off the Power Switch, close the Regulator in the Torch Handle then close the Shielding Gas Tank valve completely.
SPOOL GUN SET-UP AND WELDING
(Spool Gun available separately, not included)
SPOOL GUN WELDING SET-UP
The Eastwood MP200i is designed to use an Eastwood #20645 Spool Gun (available
separately, not included) which allows for easy feeding of aluminum wire to expand
your welding capabilities. This is an optional accessory and can be purchased sepa-
rately from Eastwood.
• Turn off Welder and unplug from power source.
• Open the side door of the Welder, disconnect the MIG Shielding Gas line at the
Quick Disconnect, then insert the Quick-Disconnect fitting of the Spool Gun
Shielding Gas Line through the access hole at the center of the lower font panel
and connect it to the Quick Disconnect at the interior bulkhead panel (FIG 22).
• Disconnect the short Cable Lead from the Positive (+) Connection Recep-
tacle by rotating the Rubber Insulator 1/2 turn Counter-Clockwise and pulling
outward (FIG 23).
• Align the key of the brass ferrule of the Spool Gun Power Cable with the notch
of the Positive (+) Connection Receptacle at the 12:00 position, then rotate 1/2
turn Clockwise to lock (FIG 23).
• Set the Selector Switch [A] located on the Front Panel to the "Spool Gun"
Position.
24
FIG. 22
FIG. 23
Eastwood Technical Assistance: 800.343.9353 >> tech@eastwood.com