Craftsman 117.205710 operating instructions Table of Contents

The following terms are used interchangeably throughout this manual:

MIG = GMAW

WARNING

This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Section 25249.5 et seq.)

OM-194 199

TABLE OF CONTENTS

WARRANTY
SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING		1
1-1.	Symbol Usage	1
1-2.	Arc Welding Hazards	1
1-3. Additional Symbols for Installation, Operation, and Maintenance		3
1-4.	Principal Safety Standards	3
1-5.	EMF Information	4

SECTION 2 – INSTALLATION			5
2-1.		Specifications	5
2-2.		Volt-Ampere Curves	5
2-3. Welding Power Source Duty Cycle And Overheating			6
2-4.	Welding Gun Duty Cycle And Overheating		6
2-5.		Installing Work Clamp	7
2-6.		Installing Gas Supply	7
2-7.		Installing Welding Gun	8
2-8.		Setting Gun Polarity	8
2-9.		Installing Wire Spool And Adjusting Hub Tension	9
2-10.		Changing Input Voltage	9
2-11.		Electrical Service Guide	10
2-12.		Selecting A Location And Connecting Input Power	10
2-13.		Threading Welding Wire	11
2-14.		Weld Parameter	12
2-15.		Aluminum Weld Parameter For Use With Optional Spool Gun	13

SECTION 3 – OPERATION		14
3-1.	Front Panel Controls	14
SECTION 4 – MAINTENANCE & TROUBLESHOOTING		15
4-1.	Routine Maintenance	15
4-2. Circuit Breakers CB1 And CB2		15
4-3.	Changing Drive Roll And Inlet Wire Guide	15
4-4.	Cleaning Or Replacing Gun Liner	16
4-5.	Replacing Switch And/Or Head Tube	17
4-6.	Replacing Gun Contact Tip	18
4-7.	Troubleshooting	18
SECTION 5 – ELECTRICAL DIAGRAM		19
SECTION 6 – MIG WELDING (GMAW) GUIDELINES		20
6-1. Typical MIG Process Connections		20
6-2. Typical MIG Process Control Settings		21
6-3.	Holding And Positioning Welding Gun	22
6-4.	Conditions That Affect Weld Bead Shape	23
6-5.	Gun Movement During Welding	24
6-6.	Poor Weld Bead Characteristics	24
6-7.	Good Weld Bead Characteristics	24
6-8.	Troubleshooting – Excessive Spatter	25
6-9.	Troubleshooting – Porosity	25
6-10. Troubleshooting – Excessive Penetration		26
6-11.	Troubleshooting – Lack Of Penetration	26
6-12.	Troubleshooting – Incomplete Fusion	26
6-13.	Troubleshooting – Burn-Through	27
6-14.	Troubleshooting – Waviness Of Bead	27
6-15.	Troubleshooting – Distortion	27
6-16.	Common MIG Shielding Gases	28
SECTION 7 – PARTS LIST		29
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