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Snap Start II
OM-629
177 029C
April 2000
TIG (GTAW) Welding
Description
High Frequency Arc Starter

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  • Page 1 All manuals and user guides at all-guides.com OM-629 177 029C April 2000 TIG (GTAW) Welding Description High Frequency Arc Starter  Snap Start II Visit our website at www.MillerWelds.com...
  • Page 2 – every power source from This Owner’s Manual is designed to help you get the most out of your Miller is backed by the most Miller products. Please take time to read the Safety precautions. They will hassle-free warranty in the business.
  • Page 3 All manuals and user guides at all-guides.com TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING ......1-1.
  • Page 4 All manuals and user guides at all-guides.com...
  • Page 5 All manuals and user guides at all-guides.com SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. This group of symbols means Warning! Watch Out! possible Y Marks a special safety message.
  • Page 6 All manuals and user guides at all-guides.com ARC RAYS can burn eyes and skin. BUILDUP OF GAS can injure or kill. D Shut off shielding gas supply when not in use. Arc rays from the welding process produce intense D Always ventilate confined spaces or use visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin.
  • Page 7 All manuals and user guides at all-guides.com 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can cause injury. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces.
  • Page 8 All manuals and user guides at all-guides.com 1-5. EMF Information Considerations About Welding And The Effects Of Low Frequency 1. Keep cables close together by twisting or taping them. Electric And Magnetic Fields 2. Arrange cables to one side and away from the operator. Welding current, as it flows through welding cables, will cause electro- magnetic fields.
  • Page 9 All manuals and user guides at all-guides.com SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 4/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédure présente des risques de danger ! Ceux-ci sont identifiés par des symboles adjacents aux directives.
  • Page 10 All manuals and user guides at all-guides.com LES RAYONS DE L’ARC peuvent pro- LES ACCUMULATIONS DE GAZ ris- voquer des brûlures dans les yeux et quent de provoquer des blessures ou sur la peau. même la mort. Le rayonnement de l’arc du procédé de soudage D Fermer l’alimentation du gaz protecteur en cas de génère des rayons visibles et invisibles intenses non utilisation.
  • Page 11 All manuals and user guides at all-guides.com 1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU DES ORGANES MOBILES peuvent D’EXPLOSION. provoquer des blessures. D Ne pas placer l’appareil sur, au-dessus ou à proxi- D Rester à...
  • Page 12 All manuals and user guides at all-guides.com 1-4. Principales normes de sécurité Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel- Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, ding Society, 550 N.W. Lejeune Rd, Miami FL 33126 de la Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.
  • Page 13 All manuals and user guides at all-guides.com SECTION 2 – INTRODUCTION 2-1. Specifications Welding Circuit Rating Input Power Dimensions Net Weight 50/60 Hz, Single-Phase; Height: 4-1/2 in (108 mm) 175 Amperes, 115 Volts AC, 0.5 Amperes; Or Width: 9-3/4 in (248 mm) 20 lb (9.1 kg) 100% Duty Cycle 230 Volts AC, 0.3 Amperes...
  • Page 14 All manuals and user guides at all-guides.com 3-2. Shielding Gas Connections Gas In Fitting Use to make connection to gas sup- ply. Gas Out Fitting Use to make gas connection to torch. Fittings have 5/8-18 right-hand threads. Tools Needed: 5/8, 1-1/8 in ST-800 293 / ST-801 480 OM-629 Page 10...
  • Page 15 All manuals and user guides at all-guides.com 3-3. Remote 14 Connections Remote 14 Receptacle Use to make connection to remote control device. Remote 14 Plug Use to make connection to welding power source Remote receptacle. ST-800 293 / ST-145 666-C / ST-801 480 3-4.
  • Page 16 All manuals and user guides at all-guides.com 3-6. Weld Cable Connections Negative (–) Input Plug Connect to negative (–) weld output receptacle on welding power source. Positive (+) Input Plug Connect to positive (+) weld output receptacle on welding power source.
  • Page 17 All manuals and user guides at all-guides.com 3-8. Making Power Connections To A Maxstar 91 Or 152 Welding Power Source Terminal Strip TE1 Strain Relief Connector Snap-In Blank Remove wrapper. Disconnect input power cord leads from TE1 and ground terminal on case. Remove power cord and strain re- lief connector, and install supplied snap-in blank into power cord hole.
  • Page 18 All manuals and user guides at all-guides.com 3-9. Installing Mounting Brackets Notched Mounting Bracket Use existing screws from lower edge of Maxstar wrapper and upper edge of HF unit wrapper, and se- cure notched brackets as shown. Tools Needed: 1/4, 5/16 in ST-800 295-A SECTION 4 –...
  • Page 19 All manuals and user guides at all-guides.com SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Y Disconnect power before maintaining. 3 Months Replace Repair or Adjust unreadable replace cracked spark labels. weld cables. gaps. Clean and Replace tighten weld cracked connections.
  • Page 20 All manuals and user guides at all-guides.com 5-3. Overload Protection Y Turn power before checking fuse F1. Fuse F1 Remove top of unit. F1 protects the primary side of transformer T1 from overload. If F1 opens, the unit no longer operates. Replace F1 if open.
  • Page 21 All manuals and user guides at all-guides.com 5-5. Circuit Diagram SB-184 968-C OM-629 Page 17...
  • Page 22 All manuals and user guides at all-guides.com SECTION 6 – HIGH FREQUENCY 6-1. Welding Processes Requiring High Frequency High-Frequency Voltage TIG – helps arc jump air gap between torch and workpiece and/ or stabilize the arc. Work high_freq 12/96 – S-0693 6-2.
  • Page 23 All manuals and user guides at all-guides.com 6-3. Correct Installation Weld Zone 50 ft (15 m) 50 ft (15 m) Ground all metal ob- jects and all wiring in welding zone using #12 AWG wire. Ground workpiece if required by codes. Nonmetal Building Metal Building...
  • Page 24 All manuals and user guides at all-guides.com SECTION 7 – PARTS LIST Hardware is common and not available unless listed. ST-801 479-C Figure 7-1. Main Assembly OM-629 Page 20...
  • Page 25 All manuals and user guides at all-guides.com Item Dia. Part Mkgs. Description Quantity Figure 7-1. Main Assembly ....199110 CIRCUIT CARD ASSY, control ....... . .
  • Page 26 All manuals and user guides at all-guides.com Item Dia. Part Mkgs. Description Quantity Figure 7-1. Main Assembly (Continued) ....180 181 ARC STARTER, pulsed HF .
  • Page 27 All manuals and user guides at all-guides.com Effective January 1, 2000 (Equipment with a serial number preface of “LA” or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied.
  • Page 28 Distributor Address City State For Service Call 1-800-4-A-Miller or see our website at www.MillerWelds.com to locate a DISTRIBUTOR or SERVICE AGENCY near you. Always provide Model Name and Serial/Style Number. Contact your Distributor for: Welding Supplies and Consumables Options and Accessories...