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MTX 4900 

 

Operation 

 

20 
 

5.3  Welding with the spot welding pliers 

 

 

 

 

 

 

 

Warning: 
Electromagnetic fields

! 

Wear protective goggles and protective gloves! 
The electrodes get hot! 
Flying sparks

!

 

 

−

 

Turn on the machine at the mains switch (see operating manual 
of the power pack) 

−

 

Connect the machine to the compressed air grid. 

−

 

Important: At the end of the welding operation, allow the coolant 
pump to run for a few more minutes to prevent any build-up of 
heat.

 

 

i  

 

 

Ensure an adequate supply of compressed air, working pressure 
min. 8 bar!  

Working pressure is 8 bar! For the MTX 4900 pliers the value 
should be 6 bar / 90 psi. 

 

 
 

Содержание MULTISPOT MTX 4900

Страница 1: ...erating Manual MULTISPOT MTX 4900 Spot welding pliers for Resistence Welder Article No 328079 Revision 0 1 Translation Be sure you have read and Version 6 th January 2014 understood this operating manual ...

Страница 2: ...mbH Branch Bremen Hinterm Sielhof 22 D 28277 Bremen Germany Phone 49 0 421 54 90 6 906 Fax 49 0 421 54 90 6 19 E Mail vertrieb elektron bremen de Internet www elektron bremen de Release BlitzRotary GmbH Branch Bremen ...

Страница 3: ... 1 Safety instructions for transport 12 3 2 Symbols on the packaging 12 3 3 Transport inspection 12 4 DESIGN AND FUNCTION 13 4 1 Overview 13 4 2 Safety equipment 14 5 OPERATION 15 5 1 Connection and preparation of the spot welding pliers 15 5 1 1 Mounting ring bar 15 5 1 2 Connecting the pliers 16 5 1 3 Preparation of the welding pliers 17 5 1 3 1 Exchanging electrode arms 17 5 1 3 2 Exchanging el...

Страница 4: ...serve such information at all times and work carefully to avoid accidents personal injury and damage to property DANGER indicates a situation that is imminently dangerous and will entail the death of people and severe injuries unless properly avoided and prevented WARNING indicates a situation that may become dangerous and may entail the death of people and severe injuries unless it is properly av...

Страница 5: ...torage systems Further information on dealing with magnetic fields Magnetic fields occur only during the welding process current flow times Do not touch the electrodes with your head during the welding process and do not put your head through the welding window Do not allow the welding cable to run along your spine 1 4 Liability disclaimer All information and data contained in this operating manua...

Страница 6: ...r represen tations contained are protected by copyright and are subject to the industrial property rights Any im proper use shall be liable to prosecution 1 6 Warranty terms The warranty terms can be found as a separate document in the sales documentation 1 7 After sales service Our after sales service department is at your disposal for further technical information Information on the responsible ...

Страница 7: ...ipment During the entire lifetime of the equipment the owner must regularly check whether such additional operating instructions are still up to date and must update them when neces sary The owner must clearly and unquestionably determine and communicate the responsibili ties for installation operation maintenance and cleaning of the equipment The owner must ensure that all persons operating and o...

Страница 8: ...ary when carrying out special operations Attention is drawn specifically to this in the individual chapters of this manual This special protective equipment is described below Face mask as protection for the face and eyes against flames sparks or hot mate rials and against hot particles and fumes Ear protectors as protection against hearing damage Gloves as protection for the hands against flames ...

Страница 9: ... implants away from the working area Post signs at the working area accordingly Post signs at the accesses and doors to the working area accordingly Do not run welding cables over your head or along your spine The ex posure limits are safely observed for distances of 20 cm Maintain a minimum distance of 1 cm between the cable package and your head or spine Electromagnetic fields Danger for magneti...

Страница 10: ...ay pose stumbling risks Stumbling and falling may lead to severe injuries Therefore Ensure that the working area is tidy and uncluttered and offers enough freedom to move before starting welding work Lay cables and supply lines in such a way that they do not constitute a stumbling hazard When welding always assume a safe and stable working position 2 4 Safety equipment WARNING Danger from malfunct...

Страница 11: ... course of time labels and symbols on the equipment may become soiled or otherwise made illegible Therefore Keep all safety warning and operating instructions on the equipment in a clean and legible condition at all times Immediately replace any damaged signs or labels Observe the operating manual Use the equipment marked with this symbol only when you have read the operating manual Moving machine...

Страница 12: ...rd the extent of the damage on the transport documents or on the shipping agent s delivery note Submit the appropriate complaint i NOTE Report all damage as soon as it is detected Claims for damages can only be made within the statutory periods for complaints CAUTION Damage due to improper transport Improper transport can result in considerable material damage Therefore Handle the packages careful...

Страница 13: ...iers 2 Electrode arm receptacle 3 Adjusting and release button for movable electrode arm 4 Electrode arm movable Ø 25 mm 5 Electrode caps 6 Electrode arm stationary Ø 25 mm 7 Ring bar 8 Release button 9 Welding cable 10 Hexagon screw for fixing the electrode arm 4 3 2 5 1 2 6 10 7 Necessary distance 8 6 8mm 9 ...

Страница 14: ...unction 14 4 2 Safety equipment Emergency stop button on the resistance welder Fig 2 Locations of the safety devices The figure shows the location of the emergency stop button It is indicated by the symbol shown on the left ...

Страница 15: ...peration 5 1 Connection and preparation of the spot welding pliers 5 1 1 Mounting ring bar 1 Mounting ring bar 2 Put in screws with plastic sleeves isolation 3 Fix screws tight 4 Ring bar fixed at pliers Fig 3 Mounting ring bar ...

Страница 16: ... Connecting the pliers 1 Push the main plug of the welding pliers into the main socket of the equipment Fig 4 1 2 Push down the clamps to lock the connection Fig 4 2 Fig 5 Water cooling system for the pliers 3 Connect the water cooling system of the pliers ...

Страница 17: ... the hexagon screw After the first welds check again the distance of the electrodes and adjust if neces sary 5 1 3 1 Exchanging electrode arms Fig 6 Unbolting electrode arm 1 To unbolt the electrode arm use the Allen key provided for that purpose Fig 6 Fig 7 Removing the electrode arm 2 Remove the electrode arm simply by pulling it out Fig 7 3 Insert new electrode arm and tighten with Allen key WA...

Страница 18: ...for good welding results Particularly when welding HSS plates and coated plates the electrode caps have to be milled or replaced after 50 welding operations at the latest milling tool see accessory catalogue 5 1 3 3 Deploying and locking the electrode arm Deploying the electrode arm Fig 9 Unlocking the arm 1 Switch the locking device of the electrode arm from posi tion locked 9 A to position open ...

Страница 19: ...igning electrodes Fig 12 Electrode must be in true alignment Be sure to look from different angles Electrodes must align no matter how you look 5 2 Preparation of the welding area The plates must be ground down to the bare metal at the contact point of the spot electrode with the plate Take care not to damage galvanised surfaces In the case of insulating intermediate layers such as spot welding pr...

Страница 20: ...ne at the mains switch see operating manual of the power pack Connect the machine to the compressed air grid Important At the end of the welding operation allow the coolant pump to run for a few more minutes to prevent any build up of heat i Ensure an adequate supply of compressed air working pressure min 8 bar Working pressure is 8 bar For the MTX 4900 pliers the value should be 6 bar 90 psi ...

Страница 21: ...ged Note Aborting the welding is not possible Select the welding operation with the buttons EF e g a HSS plates b 3 layer plate joint see Fig 13 c Galvanised plates Several options can be selected at the same time During welding hold the trigger knob of the pliers depressed until the welding process is terminat ed automatically Example of a welding programme sequence see Fig 14 A Prepressing 1 sec...

Страница 22: ...Value Unit Working pressure 8 5 10 bar Quality Clean dry and oil free Ambient conditions Specification Value Unit Ambient temperature max 40 C Relative humidity max no condensation 85 Welding pliers Specification Degree of fulfilment Exposure limits in accordance with EU Directive 2004 40 EC reliably satisfied at dis tances 20 cm perpendicularly to the pliers window reliably satisfied at distances...

Страница 23: ... 8 Flying sparks 20 Function 13 H Health endangering substances 4 Hot surface 4 L Liability disclaimer 5 M Mounting ring 15 Moving machine parts 4 11 N Note 5 O Operation 15 P Packaging 12 Peronal protective equipment 7 Protective work clothes 8 R Risk of slipping 5 Risk of tripping 5 S Safety 7 Safety shoes 8 Signs 11 Special hazards 8 Storage 12 T Technical data 22 Transport 12 Transport inspect...

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