Table of Contents

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.)

The following terms are used interchangeably throughout this manual:

MIG = GMAW

OM-198 683C

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 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION		5
1-1.	Signification des symboles	5
1-2.	Dangers relatifs au soudage à l’arc	5
1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement
	et la maintenance	7
1-4.	Principales normes de sécurité	8
1-5.	Information sur les champs électromagnétiques	8

SECTION 2 – INSTALLATION		9
2-1.	Specifications	9
2-2.	Welding Power Source Duty Cycle And Overheating	9
2-3.	Welding Gun Duty Cycle And Overheating	10
2-4.	Volt-Ampere Curves	10
2-5.	Installing Work Clamp	11
2-6.	Installing Welding Gun	11
2-7.	Connecting Olympic 30A Gun	11
2-8.	Setting Gun Polarity For Wire Type	12
2-9.	Installing Gas Supply	12
2-10.	Installing Wire Spool and Adjusting Hub Tension	13
2-11.	Positioning Jumper Links	13
2-12. Electrical Service Guide		14
2-13.	Selecting A Location And Connecting Input Power	14
2-14.	Threading Welding Wire	15
2-15.	Weld Parameter	16

SECTION 3 – OPERATION		18
3-1.	Controls	18
3-2. Voltmeter And Wire Feed Speed Meter Operation		19
SECTION 4 – MAINTENANCE &TROUBLESHOOTING		20
4-1.	Routine Maintenance	20
4-2.	Circuit Breaker CB1	20
4-3.	Unit Overload	20
4-4. Replacing Gun Contact Tip		21
4-5. Changing Drive Roll and Wire Inlet Guide		21
4-6. Aligning Drive Rolls and Wire Guide		22
4-7. Cleaning Or Replacing Gun Liner		23
4-8. Replacing Switch And/Or Head Tube		24
4-9.	Troubleshooting	25
SECTION 5 – ELECTRICAL DIAGRAM		27
SECTION 6 – PARTS LIST		28
WARRANTY

Hobart Welding Products OM-198 683C manual Table of Contents

Models: OM-198 683C