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+49 2680 181-0. A list of authorised sales partners can be found at www.ewm-group.com/en/specialist-dealers. Liability relating to the operation of this equipment is restricted solely to the function of the equipment. No other form of liability, regardless of type, shall be accepted.
Contents Notes on using these operating instructions Contents 1 Contents ............................3 2 For your safety ..........................5 Notes on using these operating instructions ................5 Explanation of icons ....................... 6 Safety instructions ........................7 Transport and installation ....................10 3 Intended use ..........................
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Contents Notes on using these operating instructions Vent coolant circuit ....................... 46 8 Technical data ..........................47 MT 301-, MT451-, MT551 W ....................47 9 Accessories ..........................48 List of tools ........................... 48 General accessories ......................48 Welding torch cooling system ....................48 9.3.1 Coolant - type blueCool ..................
For your safety Notes on using these operating instructions For your safety Notes on using these operating instructions DANGER Working or operating procedures which must be closely observed to prevent imminent serious and even fatal injuries. • Safety notes include the "DANGER" keyword in the heading with a general warning symbol. •...
For your safety Explanation of icons Explanation of icons Symbol Description Symbol Description Indicates technical aspects which the Activate and release / Tap / Tip user must observe. Switch off machine Release Switch on machine Press and hold Incorrect / Invalid Switch Correct / Valid Turn...
For your safety Safety instructions Safety instructions WARNING Risk of accidents due to non-compliance with the safety instructions! Non-compliance with the safety instructions can be fatal! • Carefully read the safety instructions in this manual! • Observe the accident prevention regulations and any regional regulations! •...
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For your safety Safety instructions WARNING Risk of injury due to improper clothing! During arc welding, radiation, heat and voltage are sources of risk that cannot be avoided. The user has to be equipped with the complete personal protective equipment at all times.
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For your safety Safety instructions CAUTION Smoke and gases! Smoke and gases can lead to breathing difficulties and poisoning. In addition, solvent vapour (chlorinated hydrocarbon) may be converted into poisonous phosgene due to the ultraviolet radiation of the arc! • Ensure that there is sufficient fresh air! •...
For your safety Transport and installation CAUTION Obligations of the operator! The respective national directives and laws must be complied with when operating the machine! • Implementation of national legislation relating to framework directive 89/391/EEC on the int- roduction of measures to encourage improvements in the safety and health of workers at work and associated individual guidelines.
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For your safety Transport and installation CAUTION Risk of accidents due to supply lines! During transport, attached supply lines (mains leads, control cables, etc.) can cause risks, e.g. by causing connected machines to tip over and injure persons! • Disconnect all supply lines before transport! Risk of tipping! There is a risk of the machine tipping over and injuring persons or being damaged itself during movement and set up.
3.1.1 Warranty For more information refer to the "Warranty registration" brochure supplied and our information regarding warranty, maintenance and testing at www.ewm-group.com! 3.1.2 Declaration of Conformity This product corresponds in its design and construction to the EU directives listed in the decla- ration.
Intended use Applications 3.1.4 Part of the complete documentation This document is part of the complete documentation and valid only in combination with all other parts of these instructions! Read and observe the operating instructions for all system components, especially the safety instructions! The illustration shows a general example of a welding system.
Welding torch with X technology – MT function torch without separate control cable The extended functions for welding torches MT301W…X, MT451W…X and MT551W…X are only available if the welding torches on EWM machines are connected to the following control: M3.70-A Phoenix Expert M3.71-A Phoenix Progress M3.72-A Alpha Q Progress...
Product description – quick reference Function torch Function torch Figure 4-2 Item Symbol Description Gas nozzle Torch neck 45° Operating elements Grip plate Torch trigger 4.3.1 Euro torch connector with control cable Figure 4-3 Item Symbol Description Anti-kink spring Quick connect coupling, red (coolant return) Quick connect coupling, blue (coolant supply) 099-500058-EW501 18.10.2022...
Product description – quick reference Welding fume extractor Item Symbol Description Control cable plug Only for control variant 2U/D. Euro central connection 4.3.2 Euro torch connector without control cable Figure 4-4 Item Symbol Description Anti-kink spring Quick connect coupling, red (coolant return) Quick connect coupling, blue (coolant supply) Euro central connection Welding fume extractor...
Product description – quick reference Welding fume extractor 4.4.1 Euro central connection Figure 4-6 Item Symbol Description Connection, extraction unit Connect to extraction device or central extraction unit Ø = 42.5 mm Anti-kink spring Quick connect coupling, blue (coolant supply) Quick connect coupling, red (coolant return) Euro central connection 099-500058-EW501...
Design and function General Design and function General WARNING Risk of injury from electrical voltage! Contact with live parts, e.g. power connections, can be fatal! • Observe the safety information on the first pages of the operating instructions! • Commissioning must be carried out by persons who are specifically trained in handling power sources! •...
Design and function Transport and installation Transport and installation CAUTION Risk of accidents due to supply lines! During transport, attached supply lines (mains leads, control cables, etc.) can cause risks, e.g. by causing connected machines to tip over and injure persons! •...
All information relates to the total hose package length of the complete welding system and presents exemplary configurations (of components of the EWM product portfolio with standard lengths). A straight kink-free installation is to be ensured, taking into account the max. delivery height.
Design and function Configure welding torch 5.4.1.2 Contact tip holder The illustration serves as an example only. Figure 5-3 • W hen assembling and disassembling the contact tip holder, use the appropriate hexagon on the torch key. 5.4.2 Turning the torch neck This function is only available with the "CG"...
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Design and function Configure welding torch Figure 5-5 Item Symbol Description Grip plate Crown nut Torch neck 45° Gas nozzle Contact tip holder Liner Contact tip Connect welding torch after performing the maintenance and rinse using the "Gas Test" with shield gas.
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Design and function Equipment recommendations 1.5 x 4.0 1.5 x 4.0 Low-alloy Steel liner 2.0 x 4.0 2.4 x 4.5 1.5 x 4.0 1.5 x 4.0 medium-alloy Combined liner 200 mm 2.0 x 4.0 2.3 x 4.7 1.5 x 4.0 1.5 x 4.0 Hardfacing Combined liner...
• Refer to the manufacturer instructions for the right wire feed unit equipment. Refer to Annex 1 in these operating instructions for the right EWM machine equipment > see 10 chapter. • Use a steel liner inside the torch hose package to guide hard, unalloyed wire electrodes (steel)! •...
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Design and function Adapting the Euro torch connection on the device Figure 5-8 Figure 5-9 Figure 5-10 Adjust the brass liner > see 5.5 chapter. Figure 5-11 099-500058-EW501 18.10.2022...
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Design and function Adapting the Euro torch connection on the device Figure 5-12 Figure 5-13 Figure 5-14 Figure 5-15 099-500058-EW501 18.10.2022...
Design and function Adapting the Euro torch connection on the device Item Symbol Description Gas nozzle Contact tip Contact tip holder Torch neck 45° Crown nut O-ring Collet Combined liner Euro central connection Connecting sleeve New combined liner Liner sharpener > see 9 chapter Guiding tube for welding torch Euro torch connector 5.6.3.2 Guide spiral...
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Design and function Adapting the Euro torch connection on the device Figure 5-17 Figure 5-18 Figure 5-19 Figure 5-20 099-500058-EW501 18.10.2022...
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Design and function Adapting the Euro torch connection on the device Figure 5-21 Figure 5-22 099-500058-EW501 18.10.2022...
Design and function Adapting the Euro torch connection on the device Figure 5-23 Item Symbol Description Gas nozzle Contact tip Contact tip holder Welding torch neck Crown nut Centring sleeve old spiral guide Euro central connection new spiral guide Capillary tube 5.6.4 Operating elements in the machine This setting affects the torch types 2U/D, 2U/D X and RD2 X / RD3 X.
Design and function Adapting the Euro torch connection on the device 5.6.5 Operating elements for the U/D / U/D X welding torch Figure 5-25 Item Symbol Description "A -" button (Program mode) Decrease program number "A -" button (Up/Down mode) Reduce welding performance (welding current/wire-feed speed) "A +"...
Design and function Adapting the Euro torch connection on the device Item Symbol Description "B +" button (program mode) Increase JOB number "B +" button (up/down mode) Welding voltage correction, increase value 5.6.7 Operating elements for the PC1 / PC1X welding torch Figure 5-27 Item Symbol Description...
Design and function Adapting the Euro torch connection on the device Example displays for welding parameters in the welding data display Welding parameters Display Welding current Wire speed Programs 5.6.8 Operating elements for the PC2 / PC2X welding torch Figure 5-29 Item Symbol Description Three-digit display...
Design and function Adapting the Euro torch connection on the device 5.6.8.1 Welding data display The signal lamps in the lower part of the torch display indicate the welding parameters currently selected. The corresponding parameter value is shown on the three-digit display. After the welding machine is switched on, the active JOB number is shown on the display for approx.
Maintenance, care and disposal General Maintenance, care and disposal General DANGER Risk of injury due to electrical voltage after switching off! Working on an open machine can lead to fatal injuries! Capacitors are loaded with electrical voltage during operation. Voltage remains present for up to four minutes after the mains plug is removed.
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Maintenance, care and disposal General Euro torch connector • The O-ring of the connecting nipple for shielding gas is defective or worn • The spring pins of the torch trigger are bent, jammed or dirty • The thread of the crown nut is dirty or damaged •...
Maintenance, care and disposal General 6.1.2 Maintenance and care before each use Figure 6-2 • Loosen the gas nozzle, check the replacement parts for damage, replace if necessary and ensure a tight fit. • If necessary, clean the welding torch, remove particularly dirt and weld spatter from the replacement parts and replace worn or defective parts.
Maintenance, care and disposal General 6.1.3 Regular maintenance The regular maintenance of a welding torch depends heavily on the duration of use and the stress and must be specified by the operator / owner. As a rule of thumb, every time the wire spool or wire basket is replaced or, if necessary, at a change of shift.
Information on returning used equipment or collections can be obtained from the respective municipal administration office. Devices can also be returned to EWM sales partners across Europe. Further information on the topic of the disposal of electrical and electronic equipment can be found on our website at: https://www.ewm-group.com/de/nachhaltigkeit.html.
Rectifying faults Checklist for rectifying faults Rectifying faults All products are subject to rigorous production checks and final checks. If, despite this, something fails to work at any time, please check the product using the following flowchart. If none of the fault rectification procedures described leads to the correct functioning of the product, please inform your authorised dea- ler.
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Rectifying faults Checklist for rectifying faults Wire feed problems Unsuitable or worn welding torch equipment Adjust contact tip to wire diameter and -material and replace if necessary Adjust wire guide to material in use, blow through and replace if necessary ...
Rectifying faults Functional check PC1X – PC2X Functional check PC1X – PC2X The welding torch shown is an example only. Depending on the type used, torches may vary. Mode for checking the display and push-buttons at the welding torch. Pressing the push-buttons will sel- ect the separate LEDs on the display one after the other.
Rectifying faults Vent coolant circuit Vent coolant circuit Figure 7-2 • Switch off the machine and fill the coolant tank to the maximum level. • Unlock the quick-connect coupling with a suitable tool (connection open). To vent the cooling system always use the blue coolant connection, which is located as deep as possible inside the system (close to the coolant tank)! Figure 7-3 •...
Technical data MT 301-, MT451-, MT551 W Technical data MT 301-, MT451-, MT551 W Performance specifications and guarantee only in connection with original spare and replacement parts! -301 W -451 W -551 W Welding torch polarity Usually positive Guide type Manually operated Voltage type Direct voltage...
Replaceable parts MT301W Replaceable parts The manufacturer's warranty becomes void if non-genuine parts are used! • Only use system components and options (power sources, welding torches, electrode hold- ers, remote controls, spare parts and replacement parts, etc.) from our range of products! •...
Replaceable parts MT451W Item Order number Type Designation 094-005403-00000 CT M6 x 25 mm, 0.6 mm, CuCrZr Contact tip 094-020689-00000 CT M6 x 25 mm, 0.8 mm, CuCrZr Contact tip 094-020690-00000 CT M6 x 25 mm, 1.0 mm, CuCrZr Contact tip 094-020691-00000 CT M6 x 25 mm, 0.6 mm, E-Cu Contact tip 094-020692-00000 CT M6 x 25 mm, 0.8 mm, E-Cu...
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Replaceable parts MT451W Item Order number Type Name Highly conical gas nozzle, narrow 094-019853-00001 GN NG TR22X4 71mm D=13mm gap welding 094-019554-00000 GN FCW TR 22x4 59.5MM Gas nozzle, inner shield 094-019626-00000 GN NG M12 73mm Gas nozzle, narrow gap welding 094-022226-00000 GN NG M12 76mm Gas nozzle, narrow gap welding 094-019623-00000 GNC TR22x4...
Replaceable parts MT551W Item Order number Type Name 094-013110-00002 CTH CUCRZR M8 L=37.1MM Contact tip holder 094-013539-00002 CTH M9 CuCrZr 34.5mm Contact tip holder 094-013540-00002 CTH M9 CuCrZr 37.5mm Contact tip holder 094-013096-00004 GD Ø11,7 mm, L=14 mm Gas diffuser 094-019625-00000 IT ES M22X1,5 M12X1 Insulation part 094-019627-00000 ZH GDE ID=5MM AD=10MM L=15MM Centring sleeve...
Replaceable parts MT301W F 10.4 MT301W F Figure 10-4 Item Order number Type Designation 094-013061-00001 GN TR 20 66mm D=13mm Gas nozzle 094-013062-00001 GN TR 20 66mm D=11mm Gas nozzle 094-013063-00001 GN TR 20 66mm D=16mm Gas nozzle 094-013071-00000 CT M6 CuCrZr, D=0,8 mm Contact tip 094-013072-00000 CT M6 CuCrZr, D=1,0 mm, L=28 mm Contact tip...
Replaceable parts MT451W F Item Order number Type Designation 098-005149-00000 O-Ring Picker O-ring picker 10.5 MT451W F Figure 10-5 Item Order number Type Designation 094-013105-00001 GN TR 22 71mm D=13mm Gas nozzle 094-013106-00001 GN TR 22 71mm D=15mm Gas nozzle 094-013107-00001 GN TR 22 71mm D=18mm Gas nozzle...
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Replaceable parts MT451W F Item Order number Type Designation 094-016118-00000 CTAL E-CU M8X30MM D=1.2MM Contact tip, aluminium welding 094-016119-00000 CTAL E-CU M8X30MM D=1.4MM Contact tip, aluminium welding 094-016120-00000 CTAL E-CU M8X30MM D=1.6MM Contact tip, aluminium welding CT ZWK CuCrZr M9 x 35 mm Ø 1,0 094-017007-00001 Contact tip, forced contact 094-016159-00001...
Circuit diagrams MT U/D Circuit diagrams The circuit diagrams are only intended for authorised service personnel! 11.1 MT U/D Figure 11-1 099-500058-EW501 18.10.2022...
Appendix Searching for a dealer Appendix 12.1 Searching for a dealer Sales & service partners www.ewm-group.com/en/specialist-dealers "More than 400 EWM sales partners worldwide" 099-500058-EW501 18.10.2022...
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