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Newarc Equipment Ltd. 

UK‘s Leading Manufacturer Of Welding Equipment 

New44 (0) 191 295 0111 

Ab44 (0) 1224 771 063 

 www.newarc.co.uk 

To maintain continued developments of our products we reserve the right to alter specifications as quoted without prior notice 

RT5000/4000

 

 

Important Information 

All  persons  authorised  to  use,  repair  or  service  the 
RT4000/RT5000  Inverter  welding  unit,    should  read  the  section 
on safety,  before any work is undertaken.  Further information 
is  available  in  publication  HSG118  'Electric  safety  in  arc  weld-
ing', which may  be obtained  from  the Health &  Safety Execu-
tive.  Please contact your distributor should you not understand 
any of the information within this document. 

INSTRUCTION MANUAL

 

Processes

 

Description

 

Constant Current Power Source 
Integrated TIG 

Summary of Contents for RT4000

Page 1: ...formation All persons authorised to use repair or service the RT4000 RT5000 Inverter welding unit should read the section on safety before any work is undertaken Further information is available in publication HSG118 Electric safety in arc weld ing which may be obtained from the Health Safety Execu tive Please contact your distributor should you not understand any of the information within this do...

Page 2: ......

Page 3: ..._________________ 6 SECTION 4 OPERATION 4 1 Operating Controls ____________________________________________________ 7 4 2 Description of Controls_________________________________________________ 7 SECTION 5 FAULT FINDING AND MAINTENANCE 5 1 Machine Operation____________________________________________________ 9 5 3 Maintenance__________________________________________________________ 10 SECTION 6 ...

Page 4: ...dry The safe handling of gas cylinders The RT4000 RT5000 uses argon when TIG welding This is an inert gas and can displace oxygen in the atmosphere lead ing to asphyxiation Note Gas cylinders are under pressure and can explode if punctured Please ensure the cylinder is secured in a stable location away from any heat source or potential mechanical damage The cylinder must be securely fastened to a ...

Page 5: ... 2 2 Specification Technical data RT4000 RT5000 Models Available 380 480 Volts 3 Phase 50 60Hz 380 480 Volts 3 Phase 50 60Hz Input Current at Max Output 25 amps 35 amps Power Consumption 18 KVA 25 KVA Recommended Mains Fuse 32A slow blow or type C MCB 40A slow blow or type C MCB Mains Cable 4 x 4 0mm flexible ca ble 4 x 4 0mm flexible cable Power Factor 0 95 0 95 Max Output Current 400 amps 500 am...

Page 6: ... carrying capacity Make sure that the mains plug and socket if fitted are in good condition and are of the correct current carrying capacity If the machine is wired directly to the mains sup ply then an isolator switch must be fitted Note See the technical specifications page for correct supply information Primary cable length Long cable lengths may reduce the perform ance of the machine the weldi...

Page 7: ... or TIG300 external TIG control unit There is no switch for remote operation plugging an external unit into the socket automatically selects remote operation and dis ables the internal current control 6 Torch switch socket For connecting the TIG torch control switch lead using DIN plug 7 Gas out connector This is a female quick coupling with an internal shut off valve To connect push the male conn...

Page 8: ...Arc Force control to your personal preference for the size and type of welding electrode to be used The RT4000 RT5000 is suitable for welding all types of electrodes within the current rating of the machine see Technical Data The RT4000 RT5000 should never be used with arc air gouging or cutting electrodes 4 3 2 MMA Welding with remote control Select welding polarity as in paragraph 4 3 1 Plug the...

Page 9: ... in the installation section and paragraphs 4 3 1 and 4 3 2 in the operating section and the fault finding procedure earlier in this sec tion Most problems with MMA welding are the result of not setting the correct welding parameters for the welding rod being used All welding rod packets have information on them in symbolic format giving suitable current range polarity and type of weld normally ca...

Page 10: ...e the build up of dust and debris from inside the machine using either compressed air at low pressure or an industrial type vacuum cleaner Make a thorough visual inspection of the interior of the machine look particularly for pieces of welding wire that may have got through the cooling air intakes Check the condition of the mains input connector look for loose terminal block screws and make sure t...

Page 11: ...RT5 4000 11 SECTION 6 ELECTRICAL DIAGRAMS 6 1 System Diagram ...

Page 12: ...RT5 4000 12 4 2 3 5 7 6 10 12 11 14 8 9 1 13 SECTION 7 PARTS BREAKDOWN 7 1 Component Locations ...

Page 13: ...RT5 4000 13 SECTION 7 PARTS BREAKDOWN 7 1 Component Locations 15 20 22 25 21 16 17 28 26 19 29 30 32 35 24 18 23 27 31 33 34 ...

Page 14: ...mer M01406 13 HF Relay M70026 14 Soft start relay M70026 15 Mains Switch 3 phase power M70071 16 Control PCB M90744 17 TIG Display PCB M00923 18 TIG PCB M90650 19 Current Transducer M01083 20 IGBT x 2 M60245 21 Snubber Capacitors x 2 M40794 22 IGBT Gate PCB x 2 M90843 23 HF Transformer M01126 24 Power Resistors M90999 25 Gas Valve Assembly M90183 TIG 26 Capacitor Assembly M95004 27 Thermostat M003...

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Page 16: ...ith a unique serial number and accompa nied with the guarantee New Arc reserve the right to a Repair b Replace c Authorise the reason able cost of repair or replacement at an approved New Arc service agent d Credit for any pur chased equipment less reasonable depreciation for actual use and condition at its entire discre tion This in no way affects your rights as a consumer The guarantee is enclos...

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