Related Manuals for Miller SSW-2020ATT
Summary of Contents for Miller SSW-2020ATT
- Page 1 OM-745 201 170B March 2003 Processes Resistance Spot Welding Description SSW-2020ATT, And SSW-2040ATT 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.
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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_11/99 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 2 - Installation
SECTION 2 – INSTALLATION 2-1. Specifications Rated Output Amperes Rated Output Amperes Input Input Work Work At Listed Tong Length At Listed Tong Length Rated Output Rated Output Rated Output Open- Open- Open- Voltage Voltage Capacity Capacity Input Input At Listed At Listed Circuit Circuit... -
Page 8: Moving The Spot Welder
2-3. Moving The Spot Welder Rating Label Locate unit near correct input power supply. Skid Place unit on skid and secure with straps. 802 752 2-4. Overview Of System Connections SSW Models Spotwelder Coolant line (see Section 2-6) Coolant Slip–on hoses system Normally 5/8–18 left–... -
Page 9: Installing Or Cleaning Tongs
2-5. Installing Or Cleaning Tongs Y Turn off unit and disconnect input power. Be sure tong ends are clean and not corroded before instal- ling. Clean tongs with fine steel wool. Bottom Tong Installation: Spatter Guard Insulating Strip Check to see that insulating strip is not cracked. -
Page 10: Coolant Connections
2-6. Coolant Connections Y Turn off power and coolant supply until installation is complete. Tong Coolant Hose Hose Clamp Barbed Fitting Coolant-In Fitting Coolant-Out Tube Coolant Hoses (Customer Supplied) Install hoses as shown. This unit is equipped with a water control pressure switch to insure proper cooling. -
Page 11: Air Connections
2-7. Air Connections Y Turn off power and air supply until installation is complete. Air Hoses (Customer Supplied) Obtain two hoses of correct size, type, and length. Air-In fittings on control boxes have 5/8-18 left-hand threads. 1/4 Inch Air Filter Pipe Thread Connect one hose to air supply and other end to input fitting on the... - Page 12 2-9. Connecting Input Power Y Disconnect and lockout/tag- out input power before con- necting input conductors from unit. Have only qualified persons make this installation. Remove left side panel. Line Disconnect Device Input And Grounding Conduc- tors Select size and length using Sec- tion 2-8.
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Page 13: Adjusting Tong Pressure
2-10. Adjusting Tong Pressure Y Turn off power before mak- ing adjustments. Top Nut Bottom Nut 13/16 in Top Linkage Bottom Linkage Tongs Tong pressure must be checked and/or set before operation. Correct tong pressure is necessary to create a quality weld and to prevent damage to tips. -
Page 14: Section 3 - Operation
SECTION 3 – OPERATION 3-1. Controls First row of LCDs displays actual time set. Second row of LCDs displays squeeze time set or weld time set. 802 751 / 200 264-A Time Control or Start Switch closes the tongs without Fuse F1 starting weld amperage. -
Page 15: Section 4 - Maintenance And Troubleshooting
SECTION 4 – MAINTENANCE AND TROUBLESHOOTING 4-1. Maintenance Y Disconnect power before maintaining. During heavy service, maintain monthly. 3 Months Replace Damaged Inspect Oil Unit Or Unreadable Tips Labels 4-2. Overload Protection Y Turn power before checking fuse. Fuse F1 and Power/pilot light/cir- cuit breaker switch S1 protect the control circuitry. -
Page 16: Installing Or Dressing Tips
4-3. Installing Or Dressing Tips A. Installing Tips Y Turn off power before re- moving tips. Telescoping Tube Removal: Tips have a Morse Taper and a press fit. Use a vice grip pliers to rotate and loosen tips. Once loose, pull tips straight out. -
Page 17: Troubleshooting
4-4. Troubleshooting Trouble Remedy No weld output; pilot light Off. Check line fuses, and replace if necessary (see Section 2-9). Check fuse F1 and/or Power/pilot light/circuit breaker switch S1, and replace if necessary (see Section 4-2). Turn On Power/pilot light/circuit breaker switch S1. No weld output, pilot light on. -
Page 18: Section 5 - Electrical Diagrams
SECTION 5 – ELECTRICAL DIAGRAMS 199 202 Figure 5-1. Circuit Diagram For Stationary Models 200 302-A Figure 5-2. Circuit Diagram For Foot Control OM-745 Page 14... -
Page 19: Section 6 - Parts List
SECTION 6 – PARTS LIST Hardware is common and not available unless listed. Figure 6-2 Figure 6-4 Figure 6-5 Figure 6-3 802 764 Figure 6-1. Main Assembly Quantity Part 2020ATT Model SSW- Description 2040ATT Figure 6-1. Main Assembly 209 661 . - Page 20 Hardware is common and not available unless listed. 802 774–A Figure 6-2. Resistance Spot Welder, Air OM-745 Page 16...
- Page 21 Quantity Item Dia. Part 2020ATT Model SSW- Description Mkgs. 2040ATT Figure 6-2. Resistance Spot Welder, Air (Fig 6-1) ..000 365 . . . RING, rtng ext .390 shaft grv x .042 E .
- Page 22 Item Dia. Part Description Mkgs. Quantity Figure 6-3. RFSW-10/20 (Fig 6-1) ... . 185 929 . . . PEDAL/HOUSING/BOTTOM PLATE ........
- Page 23 Notes OM-745 Page 19...
- Page 24 Hardware is common and not available unless listed. 802 765-A Figure 6-4. Pedestal, Air Operated (SSW Models) OM-745 Page 20...
- Page 25 . . . LABEL, MILLER 6.093 x 2.593 horizontal ....... . .
- Page 26 Hardware is common and not available unless listed. 027 777-A Figure 6-5. Tongs OM-745 Page 22...
- Page 27 Quantity Holder No. 1 Morse Taper No. 2 Morse Taper 45 or 90 Item Part Description 6” 12” 18” 6” 12” 18” Figure 6-6. Tongs (Optional) 027 778 TONG, 6 in (consisting of) ....90 deg .
- Page 28 Tongs and Tips (Must be ordered separately from spot welders. One pair of tips are supplied with each set of tongs.) Notes for tongs and tips: TONG LENGTH TIPS INCLUDED Tongs and tips shown to the 6 in 12 in 18 in TONGS (150 mm)
- Page 31 Effective January 1, 2002 (Equipment with a serial number preface of “LC” 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 &...
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Page 32: 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...