ESAB MT-300GL, Instruction Manual

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SECTION 2 DESCRIPTION
Model 100% Duty Cycle* 60% Duty Cycle
MT-300GL 250 amps 300 amps
MT-400GL 400 amps 450amps
MT-500GL 500 amps 550 amps
*Duty Cycle = 10 min. base
2.1 - TECHNICAL SPECIFICATION
2.2 GUN AMPERAGE RATING
NOTE: Ratings are based on tests that comply with NEMA
ARC Welding Section Standard 11-6-1975 for Duty Cycle.
“The time period of one complete cycle shall be 10 min-
utes” (60% = 6 minutes). National Electrical Manufacturers
Association, 2101 L Street N.W. Washington D.C. 20037.
2.3 GOOSENECK DIMENSIONS
GOOSENECK A B ° C D
952949
(300/400A)
2.65” (67.3mm) 45 5.20” (132.1mm) 3” (76.2mm)
952950
(300/400A)
3.57” (90.7mm) 60 5.97” (151.6mm) 3” (76.2mm)
952951
(300/400A)
4.87” (123.7mm) 80 5.43” (137.9mm) 3” (76.2mm)
952952
(500A)
2.64” (67.1mm) 45 7.75” (196.9mm) 4” (101.6mm)
952953
(500A)
3.95” (100.3mm) 60 7.57” (192.3mm) 4” (101.6mm)
952954
(500A)
5.58” (141.7mm) 80 7.14” (181.4mm) 4” (101.6mm)
Each of the following guns have a shock washer, tip adaptor,
nozzle insulator and heat shield. Liners and contact tips must be
ordered separately
45 Deg. 60 Deg. 80 Deg.
MT-300GL, 10 ft. (2.7m) 37713* 37722* 37731*
MT-300GL, 12 ft. (3.6m) 37714* 37723* 37732*
MT-300GL, 15 ft. (4.5m) 37715 37724 37733*
MT-400GL, 10 ft. (2.7m) 37716* 37725* 37734*
MT-400GL, 12 ft. (3.6m) 37717* 37726* 37735*
MT-400GL, 15 ft. (4.5m) 37718 37727 37736*
MT-500GL, 10 ft. (2.7 m) 37719* 37728* 37737*
MT-500GL, 12 ft. (3.6 m) 37720* 37729* 37738*
MT-500GL, 15 ft. (4.5 m) 37721 37730 37739*
* - Available upon request
2.4 - ASSEMBLIES and ACCESSORIES
2.4.1 Gun Assemblies 2.4.2 HEAT SHIELD
Heat Shield PN-952987
Heat shield attaches to gun goose
neck and is adjustable to the com-
port of the operator. Position and
ajdust locking collar as required.
Adjusting Collar