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6.5  Welding-on threaded studs 

 

With the 

MULTISPOT M20 

it is possible to weld on threaded 

studs of 4, 5, 6 mm diameter. 

 
Please use the appropriate contact pieces! 
 
SB 4 for Ø 4 mm 
SB 5 for Ø 5 mm 
 

Insert appropriate contact piece (44) into welding gun (33). 

Properly tighten union nut. 

Insert threaded stud into contact piece (44) until limit stop. 

Select "weld on studs" mode with keys CD. 

Position welding gun (33) with the stud at the welding point 
and press slightly. 

Press and keep hold of button (34) of the gun until welding 
program has ended. – (Time adjust with keys GH) 

 
Threaded studs without collar can also be welded on. Use a nut 

in place of a collar. The part to be welded should project from the 
nut about 1 to 2 mm. Welding procedure as described above. 

Содержание MULTISPOT M20

Страница 1: ... 1 Operating instructions MULTISPOT M20 ELEKTRON Bremen GmbH Hinterm Sielhof 22 D 28277 Bremen Fon 49 0 421 54906 906 Fax 49 0 421 5490619 vertrieb elektron bremen de www elektron bremen de ...

Страница 2: ... 9 6 1 Pulling out dents with washer 11 6 2 High speed planishing hammer SAH special accessory 13 6 3 Pushing in dents 15 6 4 Shrinking sheet metal 15 6 5 Welding on threaded studs 17 6 6 Welding on T pins 19 6 7 Positioning fixing sheet metal tacking 21 7 0 Appendix self test and troubleshooting 22 7 1 Self test 22 7 2 Checking the LED displays 22 7 3 Mains supply test and troubleshooting 23 7 4 ...

Страница 3: ...functions in heart pacemakers quartz watches and other electronic devi ces Electromagnetic storage devices e g on credit cards may be erased Caution Danger Ignoring this warning may result in injury Observe the notes This is the only way to achieve satisfactory welding re sults Work on the power supply unit may ONLY be per formed by qualified electricians Wear protective goggles and gloves ...

Страница 4: ...ire 4 Stud welding Copper shrinking 5 Beat out with washers T pins Special 6 High speed planishing hammer 7 Anneal shrink 8 Fine adjustment 9 Mains plug symbols with LED control mains voltage drop 15 16 17 10 LED malfunction 11 Mains plug 12 Mains cable 15 16 Indicator 17 control mains voltage drop 18 Ground cable 19 Flange socket 20 Welding socket M20 front M20 back 11 12 18 19 20 ...

Страница 5: ...led by a micro processor After selec ting the operating mode the current and weld time will be as signed automatically An audible alarm is performed if the welding current is too low Further functions Automatic tool recognition Integrated mains monitor recognises undervoltage Automatic current rise welding and current recognition Easy and distinct operation by means of foil keyboard ...

Страница 6: ...age drop during welding must be kept as small as possible The full test is described on page 20 Chapter 8 3 Information about the mains drop during welding Display with 3 LEDs 15 16 17 under the mains plug symbol Green mains OK Green yellow mains drop within tolerance range Only yellow considerable mains drop welding performance impaired If necessary check mains cord extension cables etc or use th...

Страница 7: ... 5 mm on sheet steel 2 0 mm Corrugated wire on sheet steel 1 0 Copper shrinking sheet steel 1 0 5 0 Technical data Power supply unit 230 V 205 250 V 400V Supply voltage 1x230 V 1 400V 2 Slow fuse 16 A 16A Mains frequency 50 60 Hz 50 60 Hz Power supply cord 3 3 kVA 3 3 kVA Max welding capacity 11 kVA 11 kVA Open circuit voltage 8 V AC 8 V AC Welding current max 3000 A 3000 A Ambient temperature 40 ...

Страница 8: ... 8 33 Welding gun 34 Button of welding gun 35 Grounding cable 36 Copper shoe 37 Lever clamp 38 Connection piece A B ...

Страница 9: ... to be welded Use lever clamp 37 provided or a mole wrench Before using the lever clamp 37 you have to weld on two 8 mm washers as close to the point of weld as possible see section 6 1 In this case press the copper shoe 36 of the grounding cable 35 firmly onto the metal sheet This is the only way to obtain a good current transfer Attention The copper shoe 36 must always be connected to the metal ...

Страница 10: ... 10 40 Contact piece UB 41 Pulling tool A B C D G H ...

Страница 11: ...h washer in the area of the dent Press button 34 of the gun Hook pulling tool into the washer 41 and carefully beat out the dent Remove washer by twisting Only twist the washer off other wise holes in the sheet steel could result 8 mm Washer Always beat out major dents from the outside working in wards Use bright washers instead of galvanized Adjust setting with keys GH according to size and type ...

Страница 12: ... 12 A B C D G H 42 High speed planishing hammer SAH special accessory ...

Страница 13: ... 42 in the damaged area Press button 34 of the gun and weld on welding tip Beat out the dent Twist the high speed planishing hammer SAH off the sheet steel From time to time dress the weld on tip with a file Repeat the procedure until the damaged area is entirely re paired Heavy dents only remove with extractor tool and 8mm was her as otherwise the welding gun might be damaged If the weld on tip i...

Страница 14: ... 14 A B C D G H A B C D G H 39 Carbon electrode 40 Contact piece U B ...

Страница 15: ...ally Do not lift off welding gun until the welding time has expired 6 4 Shrinking sheet Grind damaged area to a bright metal finish Insert carbon electrode 39 into contact piece of the welding gun 33 Select anneal shrink with keys CD Locate the damaged area by finger pressure Position carbon electrode 39 in the centre of the damaged area Press and keep hold of button 34 of the gun and heat the met...

Страница 16: ... 16 A B C D G H 44 Contact piece threaded stud ...

Страница 17: ...on nut Insert threaded stud into contact piece 44 until limit stop Select weld on studs mode with keys CD Position welding gun 33 with the stud at the welding point and press slightly Press and keep hold of button 34 of the gun until welding program has ended Time adjust with keys GH Threaded studs without collar can also be welded on Use a nut in place of a collar The part to be welded should pro...

Страница 18: ...47 T pin 3 x 4 5 Item no 408 597 48 Fitting piece Golf 2 Item no 313 451 special accessory 49 Fitting piece Passat B 3 Item no 315 671 special accessory 50 Fitting piece Porsche Item no 314 465 special accessory 51 Fitting piece Golf 3 Vento Item no 317 962 special accessory ...

Страница 19: ...at B3 These fittings permit accurate welding on of the T pins exactly at the points specified by the vehicle manu facturers For item numbers please see accessories list Welding procedure Grind welding area to a bright metal finish Select appropriate contact piece and insert until limit stop into welding gun 33 Thoroughly tighten union nut Select T pin mode with keys CD Insert head of T pin into ti...

Страница 20: ... 20 A B C D G H ...

Страница 21: ...he MULTISPOT M20 Washers from which has been cut out can be used as fixing aid Insert contact piece 40 for washers into welding gun 33 to limit stop Properly tighten union nut Cut off approx of a washer of 8 mm Ø with a side cutter Insert prepared washer into contact piece 40 Select washer weld with keys CD Position the washer and press on Press and keep hold of button 34 of the gun until end of a...

Страница 22: ...and select the stud welding mode Time to max GH keys Insert spot electrode in the gun Press the spot electrode firmly onto the earth shoe 36 press the gun trigger and perform the short circuit weld Evaluating the test LEDs under the mains plug symbol Green No mains drop full welding performance available Green yellow Insignificant mains drop good welding performance Yellow Larger mains drop lower ...

Страница 23: ... EEPROM parameter Call service A 2 EEPROM operating Call service LEDs in Panel B B 1 Power inlet 230 V B 2 Power inlet 400 V B 3 Display of supply frequency 50 Hz B 4 Display of supply frequency 60 Hz Mains voltage is too high B 5 Fault frequency Call service LEDs in Panel C C 1 Tool disconnected plugged off C 2 Tool too hot C 3 Tool cooling C 4 Transformer too hot C 5 Tool with long cable ...

Страница 24: ...l required with the keys AB Reset on tool change or switch the unit off 7 5 Operation panel malfunction In the case of a malfunction in the operating panel that is to say there is no reaction when a button is pressed if LED displays il luminate incorrectly etc switch the unit OFF and switch ON again after approx 2 sec This will clear the malfunction Subject to technical alterations without notice ...

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