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INSTRUCTION MANUAL
MT-450W & MT-650W
Water-Cooled MIG Torches
Ready-to-Weld Torch Assemblies
These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe
practices for arc welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding, Cutting,
and Gouging," Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment. Do NOT attempt
to install or operate this equipment until you have read and fully understand these instructions. If you do not fully understand
these instructions, contact your supplier for further information. Be sure to read the Safety Precautions before installing or
operating this equipment.
Be sure this information reaches the operator.
You can get extra copies through your supplier.
COOL GRIP
Basic Torches
F-15-450
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Summary of Contents for ESAB MT-450W
- Page 1 INSTRUCTION MANUAL F-15-450 MT-450W & MT-650W COOL GRIP Water-Cooled MIG Torches Ready-to-Weld Torch Assemblies Basic Torches These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for arc welding equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding, Cutting, and Gouging,"...
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Page 2: Table Of Contents
USER RESPONSIBILITY This equipment will perform in conformity with the description thereof contained in this manual and accompanying labels and/or inserts when installed, operated, maintained and repaired in accordance with the instructions provided. This equipment must be checked periodically. Malfunctioning equipment should not be used. Parts that are broken, missing, worn, dis- torted or contaminated should be replaced immediately. -
Page 3: Safety Precautions
SAFETY PRECAUTIONS 5. Do not use equipment beyond its ratings. For example, WARNING: hese Safety Precautions are for your protection. They summarize precaution- overloaded welding cable can overheat and create a fire hazard. ary information from the references listed in 6. - Page 4 perform any electrical work unless you are qualified to FUMES AND GASES -- Fumes and perform such work. gases, can cause discomfort or harm, 2. Before performing any maintenance work inside a power particularly in confined spaces. Do source, disconnect the power source from the incoming not breathe fumes and gases.
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Page 5: Installation
1.0 - INSTALLATION 1.1 INSTALLING TORCH TO WIRE FEEDER • Euro Connector • • 2.0 – MAINTENANCE 2.1 NOZZLE AND CONTACT TIP SYSTEMS Removal - 650 AMP • • • • Removal - 450 AMP • • • NOTE: Ensure that all parts are tightened before welding and that the coolant circulator is turned on. 2.2 SWITCH REPLACEMENT STEP #1 •... -
Page 6: Maintenance
2.0 - MAINTENANCE 2.3 GOOSENECK REPLACEMENT CONT’D. STEP #2 • • • STEP #3 • • • • 2.4 LINER REPLACEMENT STEP #1 Ensure power source is off and torch is removed from feeder before proceeding. • •... - Page 7 2.0 - MAINTENANCE 2.4 LINER REPLACEMENT CONT’D. STEP #2 • • • Do not overtighten. STEP #3 • • 2.5 POWER CABLE REPLACEMENT STEP #1 • • STEP #2 • • • • • •...
- Page 8 2.0 - MAINTENANCE 2.5 POWER CABLE REPLACEMENT CONT’D STEP #3 • • STEP #4 • STEP #5 • • •...
- Page 9 2.0 - MAINTENANCE 2.5 POWER CABLE REPLACEMENT CONT’D. STEP #6 • • STEP #7 • • • STEP #8 • •...
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Page 10: Exploded View And Parts List
3.0 - EXPLODED VIEW AND PARTS LIST 3.1 TORCH PARTS (WITH CABLE AND HOSES) PART # PART # ITEM 450 AMP 650 AMP DESCRIPTION... - Page 11 3.0 - EXPLODED VIEW AND PARTS LIST 3.2 EURO CONNECTOR PARTS PART # PART # ITEM 450 AMP 650 AMP DESCRIPTION...
- Page 12 3.0 - EXPLODED VIEW AND PARTS LIST 3.3 NOZZLES Gas Nozzles 3.4 CONTACT TIPS AND TUBES Contact Tips & Tubes Contact Tip Contact I.D. Short Long Tube*** Diameter Wire Type & Size Part No. Part No. Part No. in. (mm) Hard, Cored &...
- Page 13 3.0 - EXPLODED VIEW AND PARTS LIST 3.6 Typical Set-Up When using Mig 4HD Water Kit — 37303 WC-8C Coolant Circulator 3.7 Typical Set-Up When connecting torch directly to coolant circulator (2 of each part required) Options & Accessories Water Hose Coupling Water Kit for Mig 4HD Water Hoses Optional Water Fittings and Connectors...
- Page 14 3.0 - EXPLODED VIEW AND PARTS LIST 3.8 WIRE FEEDER CONNECTOR ASSEMBLY (MIG-35, DIGIMIG) - 20572...
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Page 15: Technical Data
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 minutes” (60% = 6 minutes). National Electrical Manufacturers Association, 2101 L Street N.W. Washington D.C. 20037. 4.2 SPECIFICATIONS Model MT-450W MT-650W 5.0 - TROUBLESHOOTING PROBLEM POSSIBLE CAUSE Poor Wire Feed •... - Page 16 ESAB Welding & Cutting Products, Florence, SC Welding Equipment COMMUNICATIONS GUIDE - CUSTOMER SERVICES A. CUSTOMER SERVICE QUESTIONS: Telephone (803) 664-5540/Fax: (800) 634-7548 Order Entry Product Availability Pricing Hours: 8:30 AM to 5:00 PM EST Order Changes Saleable Goods Returns...
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