MK Products Prince XL LE Com ACWC - Manual (Page 9)

Prince ® XL Lincoln Compatible Gun Owner's Manual - Page 2
Coolant Connections
If so equipped, the ends of the coolant hose push over a barbed fitting on
the end of the gun body and are secured by twisting the hose retainer to the
end of the hose. The hose retainer is re-usable and can be removed and
re-installed as needed.
The BLUE coolant supply hose pushes over a barbed fitting on the end of
the gun body and is secured by twisting the hose retainer to the end of the
hose. The hose retainer is re-usable and can be removed and re-installed as
needed.The opposite end of the BLUE hose pushes into a threaded coolant
fitting.
The RED coolant return hose pushes over the barbed fitting in the Power
Manifold. The opposite end of the RED hose pushes into a threaded return
hose of the coolant recirculator.
Both threaded fittings on the end of the BLUE and RED hoses are standard
quick connect fittings. MK Products compatible guns have interchangeable
fittings, so you can match as needed for your cooler. Both types of fittings
require a hose retainer.
Electric Cable
A seven-conductor control cable is used on the Prince XL Lincoln Compatible
gun. The gun end of the control cable is secured to the gun with a boot
clamp and plugged into the pot assembly and micro switch connectors.
Slack is left in the electric cable as it exits the back of the gun to prevent
cable breakage. The cabinet end has a seven-pin “W” clocked amphenol
connector.
Section B Operation
General Description
The 24 Volt DC gun motor is controlled by a 3-3/4 turn potentiometer
recessed in the pistol grip. The gun trigger is so designed that when it is
partially depressed, gas flow starts via the valve located in the gun body -
prior to ignition of the arc. When the trigger is partially released after welding
(extinguishing the arc), gas flow continues until the trigger is fully released.
Built-in pre and post gas flow.
Barrels
The Prince XL Lincoln Compatible comes standard with a straight barrel
assembly (for both air and water cooled models). An optional curved
barrel assembly is also available. In cases where these barrels need to
be extended or the tip threads have been damaged, a tip extender can be
adapted. The same tips and threads can be used, however a longer Teflon
liner is required.
Barrel Removal and Installation
To remove a barrel assembly, loosen the patented EZ Lock ® Taper lock nut
assembly. This will push barrel away from the body far enough so that it may
be pulled out of the 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
431-1898
5/16” Hose Retainer
431-1910
Quick Connect Fitting
431-1893*
Nipple
753-3379*
Left-Hand Threaded Fitting
*Must be ordered together