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21
SPOOL GUN WELDING
ELECTRIC SHOCK CAN CAUSE INJURY OR DEATH!
•
Improper use of an electric Welder can cause electric shock, injury and death! Read all precautions described in the Welder Manual to
reduce the possibility of electric shock.
•
Disconnect Welder from power supply before assembly, disassembly or maintenance of the Spool Gun, Contact Tip and when installing
or removing Nozzles.
•
Always wear dry, protective clothing and leather welding gloves and insulated footwear. Use suitable clothing made from durable
flame-resistant material to protect your skin.
•
Always operate the Welder in a clean, dry, well ventilated area. Do not operate the Welder in humid, wet, rainy or poorly ventilated areas.
•
The electrode and work (or ground) circuits are electrically “hot” when the Welder is on. Do not allow these “hot” parts to come in
contact with bare skin or wet clothing.
•
Separate yourself from the welding circuit by using insulating mats to prevent contact from the work surface.
•
Be sure that the work piece is properly supported and grounded prior to beginning an electric welding operation.
• Connect the ground clamp to the work pieces that are to be welded. Make sure the ground clamp contacts are placed on a clean piece of metal free of
paint, grease, oils, corrosion etc. It is recommended to place the ground clamp as close to the weld area as possible. Aluminum has a layer of oxide on the
surface that should be removed prior to welding.
• Plug in the Welder and move the Power Switch at the Rear Panel to the
ON
position.
• Set the Welder to MIG mode and select the
ALUM
process in the User Menu for Spool Gun welding (see
MIG MODE USER INTERFACE OPERATION
).
• Open the valve on the Argon shielding gas bottle and adjust the flow rate if necessary.
• Depress the Spool Gun Trigger for a few seconds pointing the welding gun away from your body and then let go of the trigger and cut the wire back to
~3/4” stick-out length.
NOTE:
In some cases, if the welding wire gets hot enough it may swell and bind in the Contact Tip. If this happens, you can utilize one size larger
Contact Tip. Contact Tips are available at eastwood.com.
• Using a welding helmet, gloves, and long sleeve shirt and pants, put the end of the wire sticking out of the Spool Gun into the joint to be welded.
• Position the Spool Gun so that it is perpendicular to the base metal with 10-15° angle in the direction of push travel.
• Depress the trigger to start the wire feed which starts the arc.
NOTE:
When welding aluminum with a Spool Gun it is recommended to use a push technique. Using a drag technique will result in poor, dirty welds.
• When welding aluminum a spray arc transfer is preferred rather than short arc transfer that can be more commonly used on steels. This method involves
using a longer wire stick out (~3/4”). When the Welder settings and technique have been dialed in the spray arc transfer should create a hissing sound and
little or no spatter. Once positioned the trigger can be pulled and the weld started.
• Release the trigger on the Spool Gun to stop the weld.
• After welding is completed, close the valve completely on the Shielding Gas Bottle, turn Power Switch to the
OFF
position and unplug Welder.
Summary of Contents for MP200i
Page 1: ...AC DC MP200i WELDER ASSEMBLY AND OPERATING INSTRUCTIONS Item 65375 ...
Page 31: ...To order parts and supplies 800 343 9353 eastwood com 31 DATA CHART ...
Page 38: ...38 Eastwood Technical Assistance 800 343 9353 tech eastwood com NOTES ...
Page 39: ...To order parts and supplies 800 343 9353 eastwood com 39 NOTES ...
