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Miller Electric WC-115A SECTION 4 OPERATION, SECTION 5 MAINTENANCE & TROUBLESHOOTING

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OM-1078 Page 17

SECTION 4 − OPERATION

4-1. 115 Volt Model Controls

wfcontrols_1 1/96 / Ref. 144 451-D

1 Run-In Speed Control

Use control to select welding wire

speed before arc initiation. After arc

initiation, the wire feed speed is

controlled by the Wire Speed

control on the gun/feeder.

2 Power Switch

Use switch to turn unit On and Off.

4-2. Shielding Gas

sb5.1* 6/92 − S-0621-C

1 Shielding Gas Cylinder

2 Valve

Open valve on cylinder just before

welding.

Close valve on cylinder when

finished welding.

3 Regulator/Flowmeter

SECTION 5 − MAINTENANCE & TROUBLESHOOTING

YDisconnect power

before maintaining. .Maintain more often

during severe conditions.

3 Months

Replace Damaged

Gas Hose

Clean

And

Tighten

Weld

Terminals

Replace

Damaged Or

Unreadable

Labels

Repair Or Replace

Cracked Cables

And Cords

6 Months

Blow Out Or

Vacuum Inside

Contents

Main WC115A From Miller to You TABLE OF CONTENTS 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. Principal Safety Standards 1-6. EMF Information OM-1078 Page 5 SECTION 2 CONSIGNES DE SCURIT LIRE AVANT UTILISATION 2-1. Signification des symboles . 2-2. Dangers relatifs au soudage larc LES DCHARGES LECTRIQUES peuvent tre mortelles. LES RAYONS DE LARC peuvent cau- ser des brlures oculaires et cuta- nes. LE SOUDAGE peut causer un incen- die ou une explosion. LES PARTICULES PROJETES peu- vent blesser les yeux. LES ACCUMULATIONS DE GAZ peu- vent causer des blessures ou mme la mort. LES PICES CHAUDES peuvent cau- ser des brlures graves. 2-3. Autres symboles relatifs linstallation, au fonctionnement et lentretien de lappareil. 2-4. Principales normes de scurit 2-5. Information sur les champs lectromagntiques SECTION 3 INSTALLATION 3-1. Specifications 3-2. Typical Process Connections Use gun Owners Manual when making connections. NOTE 3-4. Gun/Feeder Connections 3-5. Installing Voltage Sensing Lead And Motor Start Control Adjustment 3-6. Weld Cable Connections 3-7. Input Power Connection 3-8. Optional Connections For Input Power From Welding Power Source Pin Information Pin* Remote Contactor Input Voltage (Optional Connection) 3-9. Contact Closure Connections A. 14-Pin Plug Information For Standard Contact Closure Connections Pin* Pin Information C. Optional Contact Closure Connections For Welding Power Sources Requiring Contact Closure 3-10. Typical MIG Connections And Settings Using Weld Control And Spoolgun . > SECTION 4 OPERATION 4-1. 115 Volt Model Controls 4-2. Shielding Gas SECTION 5 MAINTENANCE & TROUBLESHOOTING 3 Months 5-1. Overload Protection 5-2. Troubleshooting Trouble Remedy Page SECTION 7 PARTS LIST Figure 7-1. Complete Assembly Of WC-115A . Page Page Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. Effective January 1, 2005 (Equipment with a serial number preface of LF or newer) Please complete and retain with your personal records. For Service Always provide Model Name and Serial/Style Number. Contact a DISTRIBUTOR or SERVICE AGENCY near you. Owners Record