MK Products Python Rev.D - Manual (Page 14)

Python Owner's Manual - Page 7
Water Cooled
The Python
® water cooled systems (226 Series) come standard with a 60˚
curved water cooled barrel assembly.
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. Lift barrel out of the gun body.
To replace a barrel assembly, open the drive and idler roll door and seat the
barrel assembly until the inlet guide is almost touching the drive and idler roll
and the rear face of the barrel is flush with the aluminum body block. 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 torch 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 torch 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.
300 Amps, Water Cooled
(P/N 003-2104)
400 Amps, Water Cooled
(P/N 003-2104)
(shown with optional #10 Gas Cup
P/N 621-0065)
Maintenance Tools
Tool Part Number
Contact Tip Removal Tool 931-0002
Drive Roll Removal Tool 931-0100