Hobart OM-353 A

OM-353 Page 16

3-8. Remote 14 Receptacle

Socket* Socket Information

A24 volts ac.

BContact closure to A completes 24 volts ac contactor control

circuit.

CCommand reference; 0 to +10 volts dc output to remote control.

BKIDRemote control circuit common.

CLNH

DMG

AE0 to +10 volts dc input command signal from remote control.

ST-154 795-C K Chassis common.

*The remaining sockets are not used.

3-9. 115 Volts AC Duplex Receptacle And Shielding Gas Connections

Ref. ST-154 795-C / Ref. ST-157 858

YTurn Off power before

connecting to receptacle.

1 115 V AC Receptacle

Receptacle is protected from over-

load by circuit breaker CB1 (see

Section 5-2).

2 Gas Valve In Fitting

3 Gas Valve Out Fitting

Fittings have 5/8-18 right-hand

threads

4 Cylinder Valve

Open valve slightly so gas flow

blows dirt from valve. Close valve.

5 Regulator/Flow Gauge

6 Flow Adjust

Typical flow rate is 20 cfh (cubic feet

per hour) (9.4 L/min)

7 High Frequency Control (see

Section 4-1)

1 7

3 2

Contents

Main From Hobart to You TABLE OF CONTENTS WARNING Page SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage . 1-2. Arc Welding Hazards ELECTRIC SHOCK can kill. ARC RAYS can burn eyes and skin. WELDING can cause fire or explosion. FLYING METAL can injure eyes. BUILDUP OF GAS can injure or kill. HOT PARTS can cause severe burns. 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. FALLING UNIT can cause injury. OVERUSE can cause OVERHEATING STATIC (ESD) can damage PC boards. 1-5. EMF Information OM-353 Page 5 SECTION 1 CONSIGNES DE SECURITE LIRE AVANT UTILISATION 1-1. Signification des symboles . 1-2. Dangers relatifs au soudage larc UN CHOC LECTRIQUE peut tuer. LES RAYONS DE LARC peuvent pro- voquer des brlures dans les yeux et sur la peau. LE SOUDAGE peut provoquer un incendie ou une explosion. DES PARTICULES VOLANTES peuvent blesser les yeux. LES ACCUMULATIONS DE GAZ ris- quent de provoquer des blessures ou mme la mort. DES PICES CHAUDES peuvent pro- voquer des brlures graves. 1-3. Dangers supplmentaires en relation avec linstallation, le fonctionnement et la maintenance 1-4. Principales normes de scurit 1-5. Information sur les champs lectromagntiques SECTION 2 DEFINITIONS 2-1. Warning Label Definitions 2-2. Rating Label For CE Products ISO/IEC 974-1 Page SECTION 3 INSTALLATION 3-1. Specifications A. DC Mode B. AC Mode 3-2. Volt-Ampere Curves 3-3. Duty Cycle And Overheating A 3-4. Selecting A Location 3-5. Dimensions And Weights Dimensions 3-6. Tipping 3-7. Weld Output Terminals And Selecting Cable Sizes 3-8. Remote 14 Receptacle Socket* Socket Information A 3-9. 115 Volts AC Duplex Receptacle And Shielding Gas Connections 3-10. Electrical Service Guide All values calculated at 60% duty cycle. NOTE 3-11. Placing Jumper Links And Connecting Input Power 260 VOLTS 380 VOLTS 520 VOLTS SECTION 4 OPERATION 4-1. Controls 4-2. Output Selector Switch 4-3. Meters 4-4. Crater Time Controls 4-5. Spot Time Controls 4-6. AC Balance Control 4-7. Amperage Adjustment Controls 4-8. Output (Contactor) Control Switch 4-9. Arc Controls 4-10. Postflow Time Control 4-11. High Frequency Controls 4-12. Preflow Time Control (Optional) SECTION 5 MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance 3 Months 6 Months 5-2. Circuit Breaker CB1 5-3. Adjusting Spark Gaps 5-4. Troubleshooting Trouble Remedy Page SECTION 6 HIGH FREQUENCY (HF) 6-1. Welding Processes Using HF 6-2. Sources Of HF Radiation From Incorrect Installation 6-3. Correct Installation SECTION 7 PARTS LIST Figure 7-1. Main Assembly Page Figure 7-2. Panel, Front w/Components Page Page Page Figure 7-6. Control Panel, Lower Front Page Page Page Page Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. Effective January 1, 2000 (Equipment with a serial number preface of LA or newer) Please complete and retain with your personal records. Resources Available Always provide Model Name and Serial/Style Number. Owners Record