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

Miller LMSW-52 Owner's Manual

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Visit our website at
www.MillerWelds.com
MSW-41, MSW-41T, LMSW-52,
And LMSW-52T
Portable Resistance Spotwelders
OM-716
199 981G
2010−04
Processes
Resistance Spot
Welding
Description

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Summary of Contents for Miller LMSW-52

  • Page 1 OM-716 199 981G 2010−04 Processes Resistance Spot Welding Description MSW-41, MSW-41T, LMSW-52, And LMSW-52T Portable Resistance Spotwelders Visit our website at www.MillerWelds.com...
  • Page 2 We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING ........1-1.
  • Page 4 Notes...

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

    SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING spotom_2010−03 Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. not avoided, will result in death or serious injury. The possible hazards are shown in the adjoining symbols or explained in the text.

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

    FLYING SPARKS can injure. FUMES AND GASES can be hazardous. Very often sparks fly off from the joint area. Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your D Wear approved face shield or safety goggles health.

  • Page 7: California Proposition 65 Warnings

    1-4. California Proposition 65 Warnings For Gasoline Engines: Welding or cutting equipment produces fumes or gases which contain chemicals known to the State of California to Engine exhaust contains chemicals known to the State of cause birth defects and, in some cases, cancer. (California California to cause cancer, birth defects, or other reproduc- Health &...

  • Page 8: Section 2 − Consignes De Sécurité − Lire Avant Utilisation

    SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION spotom_2010−03fre Se protéger, ainsi que toute autre personne travaillant sur les lieux, contre les étincelles et le métal chaud. 2-1. Signification des symboles DANGER! − Indique une situation dangereuse qui si on Indique des instructions spécifiques.

  • Page 9: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    Dans le cas d’équipements refroidis par eau, contrôlez les con- Ne pas s’approcher des organes mobiles. duites et raccords; remplacez-les s’ils présentent des fuites. Ne pas s’approcher des points de coincement. N’utilisez pas d’équipement électrique si vous êtes mouillé ou dans Ne placez pas les mains entre les électrodes.

  • Page 10: Proposition Californienne 65 Avertissements

    L’EMPLOI EXCESSIF peut SUR- DES PIÈCES DE M TAL ou DES É CHAUFFER L’ÉQUIPEMENT. SALET S peuvent provoquer des É blessures aux yeux. D Prévoir une période de refroidissement; re- specter le cycle opératoire nominal. D Porter des lunettes de sécurité à coques laté- rales ou un écran facial.

  • Page 11: Section 3 − Introduction

    *Based on 10 second time period; means unit can weld for 5 seconds out of each 10 second time period. ** Not recommended for aluminum or copper alloys. Model MSW-41, 41T LMSW-52, 52T 6 in. 12 in. 18 in. 6 in.
  • Page 12 B. Dressing The Tips Turn off and unplug welder. 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: OM-716 Page 8...

  • Page 13: Installing Or Cleaning Tongs

    4-2. Installing Or Cleaning Tongs Turn off and unplug welder. Be sure tong ends are clean OSHA and/or local codes may require additional guarding to suit the application. corroded before installing. Clean tongs with fine steel wool. Bottom Tong: Bottom Tong Hole In Spatter Guard Bottom Tong Securing Screws Loosen the four screws.

  • Page 14: Adjusting Tong And Hand Lever Pressure

    4-3. Adjusting Tong And Hand Lever Pressure Tools Needed: 9/16, 11/16 in. Ref. 800 156 splash out around the nugget area. To decrease tong pressure, loosen the rear Turn off and unplug welder. If tong pressure is too weak, parts are nut and turn the front nut up to the pivot cast- Excessive tong pressure can dam- loose when the tongs close, severe arc-...

  • Page 15: Installing Handle

    4-4. Installing Handle MSW 41 And 41T Models MSW 52, And 52T Models Tools Needed: Ref. 802 056-A 7/16, 3/8 in. Install handle onto the spot welder as shown Turn off and unplug welder. above. For 52, and 52T Models, install han- Wooden Handle dle onto either side as desired for either right- Handle Bolt...

  • Page 16: Mounting Control Box

    4-5. Mounting Control Box Push-in slots are provided on rear of box for wall mounting if desired. The slots will fit over 1/4 inch hex- head screws. To mount box, pro- ceed as follows: Control Box Push-In Slots (Not Shown) Use slots as template and install screws at desired locations leaving 1/8 inch stickout.

  • Page 17: Connecting Input Power (Non-T Models)

    4-7. Connecting Input Power (Non-T Models) 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.

  • Page 18: Section 5 − Operation

    SECTION 5 − OPERATION 5-1. Controls (T Models) Spot Weld Timer And Pilot Light Weld time adjusts from 0 to 5 seconds. The pilot light turns on when the weld cycle begins and off when the cycle ends. Hand Lever Use lever to open and close tongs.

  • Page 19: Section 6 − Maintenance And Troubleshooting

    SECTION 6 − MAINTENANCE AND TROUBLESHOOTING 6-1. Routine Maintenance Disconnect power before maintaining. Every Use 3 Months 6 Months Blow Off Vacuum Replace Inspect Unit Unreadable Tips Labels During Heavy Service, Clean Monthly 6-2. Overload Protection For 220 Volts Model Turn Off unit and disconnect input power.

  • Page 20: Troubleshooting

    6-3. Troubleshooting Trouble Remedy No weld output. Check line fuses, and replace if necessary. For 220 V models, check fuse F1, and replace if necessary (see Section 6-2). Low weld output. Dress or replace tips (see Section 4-1). Check tip threads. Replace tips if necessary (see Section 4-1). Remove and clean tongs (see Section 4-2).

  • Page 21: Section 7 − Electrical Diagrams

    SECTION 7 − ELECTRICAL DIAGRAMS 162 466-C Figure 7-1. Circuit Diagram For 110 Volts T-Models 072 065-B Figure 7-2. Circuit Diagram For 220 Volts T-Model OM-716 Page 17...
  • Page 22 162 467-B Figure 7-3. Circuit Diagram For 110 And 220 Volts Non-T Models OM-716 Page 18...
  • Page 23 Notes Work like a Pro! Pros weld and cut safely. Read the safety rules at the beginning of this manual. OM-716 Page 19...

  • Page 24: Section 8 − Parts List

    SECTION 8 − PARTS LIST Hardware is common and not available unless listed. 145 048-D Figure 8-1. Main Assembly Quantity Model Item Dia. Part Mkgs. Description 41,41T 52,52T Figure 8-1. Main Assembly ....019 643 HANDLE, carrying .
  • Page 25 Quantity Model Item Dia. Part Mkgs. Description 41,41T 52,52T Figure 8-1. Main Assembly (continued) ....010 714 PIN, spring CS .312 x 1.750 ......
  • Page 26 Replace Coils At Factory Or Factory Authorized Service Station. Quantity Model Item Part Description 41,41T 52,52T Figure 8-2. Transformer, Power Main (Fig 8-1- Item 38) 095 345 095 354 ..026 601 INSULATION .
  • Page 27 Quantity Model Item Dia. Part Mkgs. Description 115V 230V Figure 8-3. Timer, Spot (230V Illustrated) 041 081 041 082 ......NAMEPLATE, (order by model and style numbers) .
  • Page 28 Figure 8-4. 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 29 Notes...
  • Page 30 Notes...
  • Page 31 Effective January 1, 2010 (Equipment with a serial number preface of MA or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
  • Page 32 Contact the Delivering Carrier to: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2010 Miller Electric Mfg. Co. 2010−01...

This manual is also suitable for:

Msw-41Msw-41tLmsw-52t

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