MK Products Cobra MX LE Com ACWC - Manual (Page 13)

Cobra ® MX Lincoln Compatible™ Owner's Manual - Page 6
MAX Cups
(Models 277 and 279)
Classic Cups
(Models 276 and 278 )
Cup I.D. Part no. Cup I.D. Part no.
#6, 3/8" (9.5mm) 621-0420 #5, 1/4" (6.4mm) 621-0079
#8, 1/2" (12.7mm) 621-0421* #6, 3/8" (9.5mm) 001-0137-4 †
#10, 5/8" (15.9mm) 621-0422 #8, 1/2" (12.7mm) 001-0138-4* †
*standard - furnished with gun
#10, 5/8" (15.8mm) 001-0139-4 †
† sold in packs of 4 each
Maintenance Tools
Tool Part Number
Contact Tip Removal Tool 931-0044
Drive Roll Removal Tool 931-0100
(Models 277 and 278)
Spring Loaded Contact Tip - 3/8” Diameter
Wire Size
Tip ID Arc Tip Length
Qty Part Number
.030” (0.8 mm) .041” (1.0 mm) Spray 1.57” (39.9 mm) EA 621-0331
.035” (0.9 mm) .044” (1.1 mm) Spray 1.57” (39.9 mm) EA 621-0332
3/64” (1.2 mm) .060” (1.5 mm) Spray 1.57” (39.9 mm) EA 621-0334
1/16” (1.6 mm) .074” (1.9 mm) Spray 1.57” (39.9 mm) EA 621-0335
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.
Tip Extenders and Gun Barrel Liners
Part Number Description
931-0137
Teflon liner package, 5 pieces
615-0338 Steel wire only, .030 - .1/16" (0.8 - 0.9mm)
621-0424 Cobra MX Lincoln Compatible tip extender (Air cooled barrel only)
615-0250 Spiral steel liner for tip extender
Tip Extender