Lincoln Electric 215 manual Making a Weld

B-5	OPERATION				B-5
5. Loosen the socket head cap screw that holds the		3. Press the trigger to feed the wire electrode through
connector bar against the gun bushing.		the gun and cable. For solid wire cut the electrode
Important: Do not attempt to completely		within approximately 3/8" (10 mm) of the end of the
remove the socket head cap screw.		contact tip [3/4" (20 mm) for Outershield®].
6. Remove the outer wire guide, and push the gun		4. When welding with gas, turn on the gas supply and
bushing out of the wire drive. Because of the pre-
cision fit, light tapping may be required to remove		set the required flow rate (typically 25-35 CFH; 12-
the gun bushing.		16 liters/min).
7. Disconnect the shielding gas hose from the gun		5. Connect work cable to metal to be welded. Work
		clamp must make good electrical contact to the
bushing, if required.		work. The work must also be grounded as stated in
8. Connect the shielding gas hose to the new gun		“Arc Welding Safety Precautions”.
bushing, if required.					WARNING
9. Rotate the gun bushing until the thumb screw hole
			• When using an open arc process, it
aligns with the thumb screw hole in the feed plate.
Slide the gun receiver bushing into the wire drive			is necessary to use correct eye,
and verify the thumb screw holes are aligned.			head, and body protection.
10. Tighten the socket head cap screw.		-----------------------------------------------------------------------
11. Insert the welding gun into the gun bushing and		6. Position electrode over joint. End of electrode may
			be lightly touching the work.
tighten the thumb screw.		7. Lower welding helmet, close gun trigger, and
MAKING A WELD			begin welding. Hold the gun so the contact tip to
1. Check that the electrode polarity is correct for the			work distance is about 3/8" (10 mm) [3/4" (20 mm)
			for Outershield	®	].
process being used, then turn the power switch ON.
2. Set desired arc voltage tap and wire speed for the		8. To stop welding, release the gun trigger and then
particular electrode wire, material type and thick-			pull the gun away from the work after the arc goes
ness, and gas (for MIG and Outershield®) being			out.
used. Use the Application Chart on the door inside
the wire compartment as a quick reference for

some common welding procedures.	Figure B.2b
	THUMB SCREW
GUN RECEIVER BUSHING
	OUTER WIRE GUIDE

CONNECTOR BLOCK

SOCKET HEAD

CAP SCREW

POWER MIG 215LOOSEN TIGHTEN