Lincoln Electric IM773 Push-Pull Gun PYTHON K2211-2, K2211-3, K2212-1, K2212-2 & K2212-3 - Manual (Page 16)

Python Owner's Manual - Page 6
Barrels
Air/Water Cooled
The Python
® air and water cooled guns come standard with a 60˚ curved
barrel. The barrel assembly locks to the Python ® body using the patented EZ
Lock™ system.
Barrel Removal and Installation
Note: Turn off water circulator prior to loosening and removing barrels.
To remove the barrel assembly, loosen the patented EZ Lock™ Taper lock
nut until it is clear of the threads. Pull barrel out of the gun body.
To replace a barrel assembly, push the barrel assembly into the gun body
until it clicks to a stop. To assure proper seating of the barrel, open the
drive/idler roll door in the top of the handle. The rear face of the barrel should
now be flush with the gun body. Take care not to damage the “O” rings when
inserting into the body. Tighten taper lock nut assembly firmly so that barrel
cannot rotate.
Barrel Rotation
To rotate a barrel assembly, loosen the patented EZ Lock™ Taper lock nut
assembly no more than 1 turn. Rotate barrel to the position of your choice
and retighten taper lock nut assembly firmly so that the barrel cannot rotate.
WARNING: Do not attempt to weld without the barrel being tightly
secured in the gun body, or damage to the barrel or body may result.
Section D Maintenance
Periodic Maintenance
Your Cobramatic ® System is designed to provide years of reliable service.
Maintenance of the gun will normally consist of a general cleaning of the wire
guide system, including barrels, drive rolls, and conduits at regular intervals.
Remove spatter build-up from inside of nozzles with a hardwood stick.
The only parts on the Cobramatic ® system that are subject to normal wear
are the conduit, contact tips, gas cups, front body liners, wire guides, drive
and idler rolls. A supply of these parts should be maintained on hand.
The number of units in operation and the importance of minimal “down time”
will determine to what extent spare parts should be stocked on hand. See
the “Recommended Spare Parts List” for the most commonly replaced parts.
If repairs do become necessary, qualified shop maintenance personnel can
easily replace any part.
Torch Barrel Liners
Part Number Description
615-0338 Steel Wire only, .030 - 1/16" (0.8mm -1.6MM)
LE KP2244-1
MK 621-0424
Tip Extender (Air/Water cooled barrel only)
615-0250 Spiral Steel Liner for Tip Extender
LE KP2226-1
MK 931-0137
Liner Package, 5 pieces
200 Amps, Air/Water Cooled
(LE P/N KP2225-1
MK P/N 003-2147)
400 Amps, Water Cooled
(LE P/N KP2224-1
MK P/N 003-2317)
optional