Wire Drive Configuration; Making A Weld - Lincoln Electric Power MIG 360MP Operator's Manual

®
POWER MIG 360MP

WIRE DRIVE CONFIGURATION

CHANGING THE GUN RECEIVER BUSHING
Tools required:
• 1/4" hex key wrench.
Note: Some gun bushings do not require the use of the thumb
screw.
1. Turn power off at the welding power source.
2. Remove the welding wire from the wire drive.
3. Remove the thumb screw from the wire drive.
4. Remove the welding gun from the wire drive.
5. Loosen the socket head cap screw that holds the connector bar
against the gun bushing.
Important: Do not attempt to completely remove the socket
head cap screw.
6. Remove the outer wire guide, and push the gun bushing out of
the wire drive. Because of the precision fit, light tapping may
be required to remove the gun bushing.
7. Disconnect the shielding gas hose from the gun bushing, if
required.
8. Connect the shielding gas hose to the new gun bushing, if
required.
9. Rotate the gun bushing until the thumb screw hole aligns with
the thumb screw hole in the feed plate. Slide the gun receiver
bushing into the wire drive and verify the thumb screw holes
are aligned.
10. Tighten the socket head cap screw.
11. Insert the welding gun into the gun bushing and tighten the
thumb screw.

MAKING A WELD

1. Check that the electrode polarity is correct for the process
being used, then turn the power switch ON.
2. Set desired arc voltage and wire speed for the particular
electrode wire, material type and thickness, and gas (for
GMAW) being used.
3. Select the desired procedure as described in "Description of
Controls" Section.
4. Press the trigger to feed the wire electrode through the gun
and cable and then cut the electrode within approximately
3/8" (10 mm) of the end of the contact tip [3/4" (20 mm)
®
Outershield ].
NOTE: If set for slow run-in when the trigger is pulled, the wire
feeder feeds wire at low speed regardless of the set wire feed
speed until the welding arc starts or 1 second has elapsed.
This feature enhances starting and makes it easier to set the
stickout. The 1 second limit permits high speed loading of the
gun and cable. To change run-in mode, see "Run-In Mode" in
Description of Controls Section.
5. If welding gas is to be used, turn on the gas supply and set
the required flow rate (typically 25-35 CFH; 12-16 liters/min).
6. When using Innershield electrode, the gas nozzle may be
removed from the insulation on the end of the gun and
replaced with the gasless nozzle. This will give improved
visibility and eliminate the possibility of the gas nozzle
overheating.
7. Connect work cable to metal to be welded. Work clamp must
make good electrical contact to the work. The work must also
be grounded as stated in "Arc Welding Safety Precautions".
WARNING
When using an open arc process, it is necessary to use
correct eye, head, and body protection.
8. Position electrode over joint. End of electrode may be lightly
touching the work.
9. Lower welding helmet, close gun trigger, and begin welding.
Hold the gun so the contact tip to work distance is about 3/8"
(10 mm) [3/4" (20 mm) for Outershield].
10. To stop welding, release the gun trigger and then pull the gun
away from the work after the arc goes out.
11. When no more welding is to be done, close valve on gas
cylinder (if used), momentarily operate gun trigger to release
gas pressure, and turn off POWER MIG
B-12
OPERATION
®
360MP.