Miller LMSW-52 Owner's Manual
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Miller LMSW-52 Owner's Manual

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www.MillerWelds.com
MSW-41, MSW-42, And
LMSW-52
OM-710
029 821E
April 1999
Processes
Resistance Spot
Welding
Description

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Summary of Contents for Miller LMSW-52

  • Page 1 OM-710 029 821E April 1999 Processes Resistance Spot Welding Description MSW-41, MSW-42, And LMSW-52 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: Table Of Contents

    TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING ......1-1.

  • Page 5: Section 1 - Safety Precautions - Read Before Using

    SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING spotom _nd_5/97 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. This group of symbols means Warning! Watch Out! possible ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.

  • Page 6: Additional Symbols For Installation, Operation, And Maintenance

    MOVING PARTS can cause injury. FUMES can be hazardous. Coatings, cleaners, paints, and platings can pro- The tong tips, tongs, and linkages move during duce fumes when welded. Breathing these fumes operation. can be hazardous to your health. Keep away from moving parts. Do not breathe the fumes.

  • Page 7: Section 1 - Consignes De Sécurité - Lire Avant Utilisation

    SECTION 1 – CONSIGNES DE SÉCURITÉ – LIRE AVANT UTILISATION spotom _nd_Fre_4/97 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. Y Identifie un message de sécurité...

  • Page 8: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    DES ORGANES MOBILES peuvent LES FUMÉES peuvent être provoquer des blessures. dangereuses. Pendant le soudage, les bras et électrodes se Lors du soudage, les revêtements, produits de net- déplacent. toyage, peintures et placages peuvent dégager des fumées. Leur inhalation peut être dangereuse. Ne pas s’approcher des organes mobiles.

  • Page 9: Section 2 - Installation

    (10 kg) (12 kg) 3/16 in 6 in 4-1/2 in 16 in 30 lb 33 lb LMSW-52 2.5 kVA (4.7 mm) (152 mm) (114 mm) (406 mm) (14 kg) (15 kg) *Based on 10 second time period; means unit can weld for 5 seconds out of each 10 second time period.

  • Page 10: Installing Or Cleaning Tongs

    B. Dressing The Tips New Tip Used Tip Requiring Dressing Dressing Method – Keep top diameter same as a new tip. d = <1/8 in (3.2 mm) diameter for 1.5 kVA models; 5/32 in (4 mm) for 2.5 kVA models Tools Needed: 2-3.

  • Page 11: Adjusting Tong And Hand Lever Pressure

    2-4. Adjusting Tong And Hand Lever Pressure Tools Needed: 9/16, 11/16 in Ref. ST-800 156 Y Turn off and unplug welder. splash out around the nugget area. To decrease tong pressure, loosen the rear If tong pressure is too weak, parts are nut and turn the front nut up to the pivot cast- Y Excessive tong pressure can dam- loose when the tongs close, severe arc-...

  • Page 12: Connecting Input Power

    2-5. Connecting Input Power Y Input power supply wiring and receptacle must meet National Electrical Code and all other code requirements. Operate spot welder from a sepa- rately fused or circuit breaker pro- tected circuit, and use correct size input conductors. Rating Label Cord Parallel Plug On 110 Volts AC...

  • Page 13: Section 3 - Operation

    SECTION 3 – OPERATION 3-1. Controls Hand Lever Use lever to open and close tongs. Close the hand lever during the welding process to compress the material between the tips. To adjust tong pressure, see Section 2-4. Start Switch Use switch to turn weld current On and Off.

  • Page 14: Section 4 - Maintenance And Troubleshooting

    SECTION 4 – MAINTENANCE AND TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power before maintaining. Every Use 3 Months 6 Months Blow Off Vacuum Replace Inspect Unit Unreadable Tips Labels During Heavy Service, Clean Monthly 4-2. Troubleshooting Trouble Remedy No weld output. Check line fuses, and replace if necessary.

  • Page 15: Section 5 - Electrical Diagram

    SECTION 5 – ELECTRICAL DIAGRAM SA-162 467-B Figure 5-1. Circuit Diagram For Spot Welders OM-710 Page 11...

  • Page 16: Section 6 - Parts List

    SECTION 6 – PARTS LIST Hardware is common and not available unless listed. 38-Fig 6-2 ST-145 048-B Figure 6-1. Main Assembly OM-710 Page 12...
  • Page 17 Quantity Model Item Dia. Part Mkgs. Description Figure 6-1. Main Assembly ....019 643 HANDLE, carrying ........
  • Page 18 Replace Coils At Factory Or Factory Authorized Service Station Quantity Model Item Part Description Figure 6-2. Transformer, Power Main (Fig 6-1 Item 38) 095 345 095 350 095 354 ..026 601 INSULATION .
  • Page 19 Chart 6-1. Spot Welder Tips 6” (152 mm) 040 197 3-1/2” (89 mm) Standard Flat 12” (305 mm) 040 198 18” (457 mm) 040 199 STANDARD 040 211 040 212 6” (152 mm) 040 200 3-1/2” (89 mm) Offset 12” (305 mm) 040 201 18”...
  • Page 20 Notes OM-710 Page 16...
  • Page 21 Notes...
  • Page 22 Notes...
  • Page 23 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. Call LIMITED WARRANTY – Subject to the terms and conditions APT, ZIPCUT &...

  • Page 24: Options And Accessories

    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...

This manual is also suitable for:

Msw-42Msw-41

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