Python LIQUID COOLED MILLERMATIC COMPATIBLE 248-8XX - Manual (Page 17)

Liquid Cooled Millermatic Compatible™ Python ® Owner's Manual - Page 6
Optional Barrels - Liquid Cooled
6" Straight .......................................................................................... 003-2315
6" Curved, 45° ................................................................................... 003-2316
12" Straight ....................................................................................... 003-2318
12" Curved, 45° ................................................................................ 003-2319
18" Straight ....................................................................................... 003-2320
18" Curved, 45° ................................................................................. 003-2321
Barrel Removal and Installation
CAUTION: Power-off the coolant pump before removing or loosening
liquid-cooled cups and 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 while welding.
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 re-tighten taper lock nut assembly firmly so that the barrel cannot rotate.
CAUTION: 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 liquid cooled Millermatic Compatible™ Python ® 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 that are subject to normal wear are the conduit, contact tips,
nozzles, barrel 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.
It is recommended that you blow out your conduit each time you install a new
spool of wire.
If repairs do become necessary, qualified shop maintenance personnel can
easily replace any part.
Reference the table below for suggested Maintenance Tools used with the
liquid cooled Millermatic Compatible™ Python ® welding gun.
Maintenance Tools
Tool Part Number
Drive Roll Removal Tool 931-0100
Tip Removal Tool 931-0002
Disconnect Power
Before Maintaining.