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OM-1096 091 504D
February 2001
Processes
Automatic Welding
Description
Automatic Welding Motorized Slide
MOTORIZED SLIDE MSC-2
Visit our website at
www.MillerWelds.com
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From Miller to You Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. 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. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy. Today, the people that bu
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TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-3. Additional Symbols For Installation, Operation, And Maintenance . . . . . . . .
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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 Marks a special safety message. ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions Means “Note”; not safety related. to avoid the hazards. 1-2. Arc Welding
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ARC RAYS can burn eyes and skin. BUILDUP OF GAS can injure or kill. Shut off shielding gas supply when not in use. Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays Always ventilate confined spaces or use that can burn eyes and skin. Sparks fly off from the approved air-supplied respirator. weld. Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching (see ANSI Z49.1 and Z87.1 li
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1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can cause injury. Do not install or place unit on, over, or near Keep away from moving parts such as fans. combustible surfaces. Keep all doors, panels, covers, and guards Do not install unit near flammables. closed and securely in place. Do not overload building wiring – be sure power supply system is properly sized, rated, and protected to handle this unit. FALLING UNIT can cau
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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. There has been and still is some concern about such fields. However, after examining more than 500 studies spanning 17 3. Do not coil or drape cables around your body. years of resea
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SECTION 2 – SPECIFICATIONS 2-1. Motorized Slide Specifications Specification Description Input Power 115 Volts AC From MSC-2 Max. Load Capacity 12 in. (305 mm) Vertical Mounting: 75 lbs (34 kg); Horizontal Mounting: 74 lbs (33 kg) (See Section 2-3) From Cover (Face Plate) Total Slide Travel 5 in. (127 mm) Travel Speed Standard: 18 ipm (0.457 mpm); Optional: 27 ipm (0.686 mpm) Overall And Mounting Dimensions See Section 2-4 Interconnecting Cord Length 10 ft. (3 m) Weight Net: 32 lbs (14.5 kg); Sh
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2-4. Motorized Slide Dimensions A Inches Millimeters A 5 127 H J B 14 356 C* 14-3/8 365 D 9-3/8 238 E 5/8 16 F 11-3/16 284 D C G 1 25 H 5-19/32 142 G E J 17/32 13 B F *To bottom of mounting feet. ST-091 229-A 2-5. MSC-2 Dimensions Inches Millimeters A 9 229 B 9-1/2 241 C 3/8 10 G D 8 203 L E 1-1/2 38 F 5/16 7.9 G 4-1/2 114 K H 2-7/8 73 J 1-7/16 37 J K 1/4 6 H L 5-1/4 133 A F E B D C ST-106 544-A OM-1096 Page 6
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SECTION 3 – INSTALLATION 3-1. Location IMPORTANT: Mount slide so motor and cables are away from weld zone to protect from heat and spatter. The motorized slide is normally installed onto the cross arm of a side beam opposite the side beam control. An adapter plate is available. The MSC-2 is normally installed behind the side beam control on the cross arm. Brackets are available. 3-2. Interconnecting And Power Cord Installation 1 Motorized Slide 2 MSC-2 Control 3 Interconnecting Cord Plug 3 4 4
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3-3. Remote Movement Control Connections Slide movement can be controlled by a remote device having a set of normally-open contacts. Timing of the contact closure is controlled by the remote device. 1 MSC-2 Control Open control door. 4 A 4 2 Strain Relief B 3 Cord From Remote Device C Crimp proper terminals onto leads. D 4 Terminal Strip 1T E Make connections, tighten strain F is circuit common F relief, and close and secure door. G G to F = Up H H to F = Down J to F = Right J 3 K K to F = Left
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SECTION 4 – OPERATION 4-1. MSC-2 Control 1 Power Switch 4 2 Pilot Light Use switch to turn unit and pilot light ON and OFF. 3 3 Fuse (See Section 5-2) 4 Joystick Use joystick to position gun over 2 weld seam. 1 ST-154 638 OM-1096 Page 9
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4-2. Motorized Slide Limit Switch 1 Limit Switch 2 Slide Stop 3 Nut Slide movement stops when stop hits limit switch. This can be used as a starting refer- ence point for weld repeatability. The stop can be adjusted. Loosen nut, turn screw in or out to desired length, and tighten nut. 1 2 3 Tools Needed: 7/16 in. Ref. ST-154 578 SECTION 5 – MAINTENANCE & TROUBLESHOOTING 5-1. Routine Maintenance Every month, check labels and cables; clean all parts. Yearly clean and oil slide, and clean and adjus
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5-3. Slide Maintenance Turn OFF and unplug unit. 1 Gun Mounting Plate 2 Slide Cover With Seal 3 Shaft 5 4 Screw Lead 5 Pillow Block Oil Hole Disassemble as shown. Wipe all surfaces clean. Lubricate pillow 4 block with No. 20 oil. Lubricate screw lead with No. 90 oil. Reinstall cover and plate. 3 2 1 Tools Needed: 3/16 in. ST-154 580 5-4. Drive Belt Adjustment Turn OFF and unplug unit. Remove screws and open access door. Clean drive pulleys. Adjust belt as follows: 1 Motor Pulley 2 Toothed Drive
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5-5. Troubleshooting Trouble Remedy Unit does not work; pilot light not on. Check fuse F1. Replace if open (see Section 5-2). Erratic movement. Check plug and terminal strip connections (see Sections 3-2 and 3-3). Slide moves in only one direction. Joystick or external device connections are incorrect (see Section 3-3). Check joystick for proper operation and replace if necessary. Check external device for proper operation and replace or repair. Slide stalled and motor hums Remove excessive load
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SECTION 6 – ELECTRICAL DIAGRAMS RC1 BLK BLK 501 500 C (CCW) LS1 C2 C1 503 502 RED GRN 504 (CW) A 2 1 WHT WHT 505 B 5 D A B C D 1T 123 536-B 505 504 502 501 Figure 6-1. Circuit Diagram For Motorized Slide SA-097 916-A Figure 6-2. Circuit Diagram For MSC-2 OM-1096 Page 13
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SECTION 7 – PARTS LIST 2 6 11 1 3 12 4 13 5 14 15 16 10 14 13 17 9 8 33 6 18 7 8 32 31 11 30 6 29 19 20 21 28 26 27 22 25 24 Hardware is common and not available unless listed. ST-091 230-B 23 Figure 7-1. Motorized Slide OM-1096 Page 14
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Item Dia. Part No. Mkgs. No. Description Quantity Figure 7-1. Motorized Slide . . . 1 . . . . . . . . . . 009 278 . . FOOT, closer seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 . . . 2 . . . . . . . . . . 090 683 . . PLATE, mtg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . 3 . . . . . . . . . . 009 259 . . COVER . . . . . . . . . . . . . . . . . . . . . . . . .
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Hardware is common and not available unless listed. 6 3 5 2 4 1 7 8 9 9 23 22 21 10 17 16 20 15 19 18 11 14 13 12 ST-098 848-B Figure 7-2. MSC-2, Motorized Slide Control OM-1096 Page 16
