Table of Contents

The following terms are used interchangeably throughout this manual:

TIG = GTAW

Stick = SMAW

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.)

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 – DEFINITIONS		9
2-1.	Warning Label Definitions	9
2-2.	Manufacturer’s Rating Label For CE Products	10
2-3.	Symbols And Definitions	11

SECTION 3 – INSTALLATION		12
3-1.	Selecting A Location	12
3-2.	Dimensions And Weights	13
3-3.	Specifications	13
3-4.	Duty Cycle And Overheating	14
3-5.	Volt-Ampere Curves	14
3-6. Weld Output Terminals And Selecting Cable Sizes		15
3-7.	Remote 14 Receptacle	15
3-8. Shielding Gas Connections And 115 Volts AC Duplex Receptacle		16
3-9.	Electrical Service Guide	17
3-10. Placing Jumper Links And Connecting Input Power		18

SECTION 4 – OPERATION		19
4-1.	Controls	19
4-2.	Output Selector Switch	21
4-3.	Process Control	21
4-4.	Current Control	22
4-5.	Output Control	22
4-6.	Start Mode	23
4-7.	Meters	24
4-8.	Amperage Adjustment Control	24
4-9.	Balance/DIG Control	25
4-10.	Preflow Time Control	26
4-11. Postflow Time Control		26
4-12.	Setting Pulse Controls	27
4-13. High Frequency Control		28
4-14. Optional Sequence Controls		28
4-15. Sequence Selection Switch		29
4-16. Start Time/Spot Time Control And Start Current Control		29
4-17. Crater Time Control And Final Current Control		30
4-18. Start/Crater Sequence Controls		31
4-19. 4T Sequence Selection Controls		32
4-20. Spot Time Control		33
4-21. Timer/Cycle Counter		33

SECTION 5 – MAINTENANCE & TROUBLESHOOTING		34
5-1.	Routine Maintenance	34
5-2.	Circuit Breaker CB1	34
5-3.	Adjusting Spark Gaps	35
5-4.	Voltmeter/Ammeter Help Displays	36
5-5.	Troubleshooting	37
SECTION 6 – ELECTRICAL DIAGRAM		39
SECTION 7 – HIGH FREQUENCY		40
SECTION 8 – PARTS LIST		42
OPTIONS AND ACCESSORIES
WARRANTY

Hobart Welding Products 350LX manual Table of Contents

Models: 350LX