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CUTMASTER 25mm

Manual 0-5080 

5T-1 

 SERVICE

SECTION 5 TORCH: 

SERVICE

5T.01 General Maintenance

NOTE

Refer to Previous "Section 5 System" for common 
and fault indicator descriptions.

Cleaning Torch

Even if precautions are taken to use only clean air 

with a torch, eventually the inside of the torch be-

comes coated with residue. This buildup can affect 

the pilot arc initiation and the overall cut quality of 

the torch.

WARNINGS

Disconnect primary power to the system before 
disassembling the torch or torch leads.

DO NOT touch any internal torch parts while the 
AC indicator light of the Power Supply is ON.

The inside of the torch should be cleaned with electri-

cal contact cleaner using a cotton swab or soft wet 

rag. In severe cases, the torch can be removed from 

the leads and cleaned more thoroughly by pouring 

electrical contact cleaner into the torch and blowing 

it through with compressed air.

CAUTION

Dry the torch thoroughly before reinstalling.

O-Ring Lubrication

An o-ring on the Torch Head and ATC Male Connec-

tor requires lubrication on a scheduled basis.  This 

will allow the o-rings to remain pliable and provide 

a proper seal.  The o-rings will dry out, becoming 

hard and cracked if the lubricant is not used on a 

regular basis.  This can lead to potential performance 

problems.

It is recommended to apply a very light film of o-

ring lubricant (Catalog # 8-4025) to the o-rings on a 

weekly basis.

Upper Groove
with Vent Holes
Must Remain Open

Threads

Upper O-Ring
in Correct Groove

Lower O-Ring

Art # A-03725

Torch Head O-Ring

ATC Male Connector 

Art #A-03791

Gas Fitting

O-Ring

ATC O-Ring

NOTE

DO NOT use other lubricants or grease, they may 
not be designed to operate within high tempera-
tures or may contain “unknown elements” that 
may  react  with  the  atmosphere.    This  reaction 
can leave contaminants inside the torch.  Either 
of these conditions can lead to inconsistent per-
formance or poor parts life.

ARC WELDING SUPPLIES - 07 847 7870

Summary of Contents for CUTMASTER A-09207

Page 1: ...380 400 Art A 09207 PLASMA CUTTING SYSTEM 25mm CUTMASTER Rev AD Date February 25 2010 Manual 0 5080 Operating Features Operating Manual A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 2: ...d the entire manual especially the Safety Precautions They will help you to avoid po tential hazards that may exist when working with this product YOU ARE IN GOOD COMPANY The Brand of Choice for Contr...

Page 3: ...s work in whole or in part without written permission of the publisher is prohibited The publisher does not assume and hereby disclaims any liability to any party for any loss or damage caused by any...

Page 4: ...This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 5: ...s And Accessories 2T 2 2T 05 Introduction to Plasma 2T 2 SECTION 3 SYSTEM INSTALLATION 3 1 3 01 Unpacking 3 1 3 02 Lifting Options 3 1 3 03 Primary Input Power Connections 3 2 3 04 Gas Connections 3 3...

Page 6: ...ment 6 1 6 04 Replacement Power Supply Parts 6 2 6 05 Options and Accessories 6 2 6 06 Replacement Parts for Hand Torch 6 3 6 07 Replacement Parts for Machine Torches with Unshielded Leads 6 4 6 08 Re...

Page 7: ...mony Chromium Mercury Arsenic Cobalt Nickel Barium Copper Selenium Beryllium Lead Silver Cadmium Manganese Vanadium Always read the Material Safety Data Sheets MSDS that should be supplied with the ma...

Page 8: ...r birth defects and other reproductive harm Wash hands after handling California Health Safety Code 25249 5 et seq 1 03 Publications Refer to the following standards or their latest revisions for more...

Page 9: ...t des dangers de sant Eloignez toute fum e et gaz de votre zone de respiration Gardez votre t te hors de la plume de fum e provenant du chalumeau Utilisez un appareil respiratoire alimentation en air...

Page 10: ...nies de parois lat rales ou des lunettes de protection ou une autre sorte de protection oculaire Portez des gants de soudeur et un v tement protecteur appropri pour prot ger votre peau contre les tinc...

Page 11: ...ciety 550 N W LeJeune Rd Miami FL 33126 8 Norme 51 de l Association Am ricaine pour la Protection contre les Incendies NFPA LES SYSTEMES GAZ AVEC ALIMENTATION EN OXYGENE POUR LE SOUDAGE LA COUPE ET LE...

Page 12: ...testing for all printed circuit boards used CENELEC EN50199 EMC Product Standard for Arc Welding Equipment ISO IEC 60974 1 BS 638 PT10 EN 60 974 1 EN50192 EN50078 applicable to plasma cutting equipme...

Page 13: ...nty does not apply to 1 Consumable Parts such as tips electrodes shield cups o rings starter cartridges gas distributors fuses filters 2 Equipment that has been modified by an unauthorized party impro...

Page 14: ...CUTMASTER 25mm GENERAL INFORMATION 1 8 Manual 0 5080 This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 15: ...te listed below and clicking on Thermal Dynamics and then on the Literature link http www thermal dynamics com 2 02 Equipment Identification The unit s identification number specification or part numb...

Page 16: ...ng Range 0 50 C IEC Rating IEC Rating IEC Rating All Units Duty Cycle 40 60 100 Current 80 Amps 65 Amps 50 Amps DC Voltage 112 106 100 NOTE The duty cycle will be reduced if the primary input power AC...

Page 17: ...ible Cord AWG 3 Phase 380 50 60 11 8 17 11 20 12 400 50 60 11 8 17 11 20 12 Line Voltages with Suggested Circuit Protection and Wire Sizes Based on National Electric Code and Canadian Electric Code NO...

Page 18: ...y Features Handle and Leads Wrap Torch Leads Receptacle Control Panel Art A 07942 Work Cable and Clamp Art A 08544 Input Power Cord Port for Optional Automation Interface Cable Gas Inlet Port Filter A...

Page 19: ...used as both the plasma and second ary gas The air flow is divided inside the torch head Single gas operation provides a smaller sized torch and inexpensive operation NOTE Refer to Section 2T 05 Intr...

Page 20: ...ch has been heated to an ex tremely high temperature and ionized so that it becomes electrically conductive The plasma arc cutting and gouging processes use this plasma to transfer an electrical arc t...

Page 21: ...Main Cutting Arc DC power is also used for the main cutting arc The negative output is connected to the torch electrode through the torch lead The positive output is con nected to the workpiece via th...

Page 22: ...CUTMASTER 25mm INTRODUCTION 2T 4 Manual 0 5080 This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 23: ...Power Supply includes a handle for hand lifting only Be sure unit is lifted and transported safely and securely WARNING Do not touch live electrical parts Disconnect input power cord before moving uni...

Page 24: ...power 1 Remove the Power Supply cover per instructions found in section 5 2 Disconnect the original input power cable from the main input contactor and the chassis ground connection 3 Loosen the throu...

Page 25: ...wing two subsections if an optional air line filter is to be installed 1 Connect the air line to the inlet port The illustration shows typical fittings as an example NOTE For a secure seal apply threa...

Page 26: ...air line to the Filter The illustration shows typical fittings as an example NOTE For a secure seal apply thread sealant to the fitting threads according to the maker s instructions Do Not use Teflon...

Page 27: ...according to manufacturer s instructions Do Not use Teflon tape as a thread sealer as small particles of the tape may break off and block the small air passages in the torch 2 Connect the two stage fi...

Page 28: ...The cylinder must be equipped with an adjustable high pressure regulator capable of outlet pressures up to 100 psi 6 9 bar maximum and flows of at least 300 scfh 141 5 lpm 4 Connect supply hose to th...

Page 29: ...e connection 1 2 Art A 07885 Connecting the Torch to the Power Supply 3 The system is ready for operation Check Air Quality To test the quality of air 1 Put the ON OFF switch in the ON up position 2 P...

Page 30: ...Pinch Block Assembly Mechanical Torch Set Up 3 The proper torch parts shield cup tip start cartridge and electrode must be installed for the type of operation Refer to Section 4T 07 Torch Parts Selec...

Page 31: ...down is OFF 4 Air Gas Pressure Control The Pressure Control is used in the SET mode to adjust the air gas pressure Pull the knob out to adjust and push in to lock 5 AC Indicator Steady light indicates...

Page 32: ...y on Connect Work Cable Clamp the work cable to the workpiece or cutting table The area must be free from oil paint and rust Connect only to the main part of the workpiece do not connect to the part t...

Page 33: ...ts instantly and the cutting arc restarts instantly when the pilot arc contacts the workpiece Use the Rapid Auto Restart position when cutting expanded metal or gratings or in gouging or trimming oper...

Page 34: ...CUTMASTER 25mm OPERATION 4 4 Manual 0 5080 This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 35: ...lds the tip and starter cartridge in place Position the torch with the shield cup facing upward to keep these parts from falling out when the cup is removed 1 Unscrew and remove the shield cup assem b...

Page 36: ...ding Rounding on the top edge of a cut due to wearing from the initial contact of the plasma arc on the workpiece Bottom Dross Buildup Molten material which is not blown out of the cut area and resoli...

Page 37: ...ross When dross is present on carbon steel it is com monly referred to as either high speed slow speed or top dross Dross present on top of the plate is normally caused by too great a torch to plate d...

Page 38: ...teristic of the power supply and not a function of the torch 3 4 Art A 03383 Trigger 2 1 Trigger Release 6 Cut as usual Simply release the trigger assembly to stop cutting 7 Follow normal recommended...

Page 39: ...ng technique that feels most comfort able and allows good control and move ment 4 Keep the torch in contact with the work piece during the cutting cycle 5 Hold the torch away from your body 6 Slide th...

Page 40: ...rch handle while simultaneously squeezing the trigger The pilot arc will start A 02986 Trigger Trigger Release 6 Bring the torch within transfer distance to the work The main arc will transfer to the...

Page 41: ...hand or machine torch and the amount of material to be removed Lead Angle The angle between the torch and workpiece depends on the output current setting and torch travel speed The recommended lead a...

Page 42: ...rc column produces the cut If the travel speed is too slow a rough cut will be produced as the arc moves from side to side in search of metal for transfer Travel speed also affects the bevel angle of...

Page 43: ...60A 40A Shield Cap Deflector 9 8243 Shield Cup Body 9 8237 Shield Cup 9 8218 Tip Tips Tips Tips DRAG TIP CUTTING 40 120A GOUGING CUTTING CUTTING CUTTING Art A 08065_AE DRAG SHIELD CUTTING Shield Cap...

Page 44: ...m psi bar Plasma Total Delay Sec Inches mm 0 036 0 9 9 8208 103 40 355 9 02 0 125 3 2 70 4 8 55 170 0 00 0 2 5 1 0 05 1 3 9 8208 98 40 310 7 87 0 125 3 2 70 4 8 55 170 0 00 0 2 5 1 0 06 1 5 9 8208 98...

Page 45: ...0 350 8 91 0 19 4 8 75 5 2 90 245 0 00 0 20 5 1 0 075 1 9 9 8210 116 60 300 7 64 0 19 4 8 75 5 2 90 245 0 10 0 20 5 1 0 120 3 0 9 8210 123 60 150 3 82 0 19 4 8 75 5 2 90 245 0 10 0 20 5 1 0 135 3 4 9...

Page 46: ...4 8 70 4 8 115 340 NR NR NR 1 000 25 4 9 8211 132 80 9 0 23 0 19 4 8 70 4 8 115 340 NR NR NR Type Torch SL60 With Exposed Tip Type Material Stainless Steel Type Plasma Gas Air Type Secondary Gas Sing...

Page 47: ...25 6 4 70 4 8 115 340 0 20 0 25 6 4 0 250 6 4 9 8211 128 80 110 2 79 0 25 6 4 70 4 8 115 340 0 30 0 25 6 4 0 375 9 5 9 8211 136 80 55 1 40 0 25 6 4 70 4 8 115 340 0 40 0 25 6 4 0 500 12 7 9 8211 139...

Page 48: ...m psi bar Plasma Total Delay Sec Inches mm 0 036 0 9 9 8208 109 40 180 4 57 0 125 3 2 70 4 8 55 170 0 00 0 2 5 1 0 05 1 3 9 8208 105 40 165 4 19 0 125 3 2 70 4 8 55 170 0 00 0 2 5 1 0 06 1 5 9 8208 11...

Page 49: ...165 4 19 0 13 3 2 75 5 2 90 245 0 00 0 20 5 1 0 075 1 9 9 8210 116 60 155 3 94 0 13 3 2 75 5 2 90 245 0 10 0 20 5 1 0 120 3 0 9 8210 115 60 125 3 18 0 13 3 2 75 5 2 90 245 0 10 0 20 5 1 0 135 3 4 9 82...

Page 50: ...0 4 8 115 340 NR NR NR 1 000 25 4 9 8211 162 80 8 0 20 0 19 4 8 70 4 8 115 340 NR NR NR Type Torch SL60 With Shielded Tip Type Material Stainless Steel Type Plasma Gas Air Type Secondary Gas Single Ga...

Page 51: ...0 13 3 2 70 4 8 115 340 0 20 0 25 6 4 0 250 6 4 9 8211 124 80 100 2 54 0 13 3 2 70 4 8 115 340 0 30 0 25 6 4 0 375 9 5 9 8211 138 80 60 1 52 0 19 4 8 70 4 8 115 340 0 40 0 25 6 4 0 500 12 7 9 8211 141...

Page 52: ...6933461 Other Pat s Pending 9 8211 Tip US Pat No s 6774336 7145099 6933461 Other Pat s Pending 9 8212 Tip US Pat No s 6774336 7145099 6933461 Other Pat s Pending 9 8253 Tip US Pat No s 6774336 714509...

Page 53: ...D496951 Other Pat s Pending The following parts are also licensed under U S Patent No 5 120 930 and 5 132 512 Catalog Description 9 8235 Shield Cap 9 8236 Shield Cap 9 8237 Shield Cup 9 8238 Shield C...

Page 54: ...CutMaster 25mm OPERATION 4T 20 Manual 0 5080 This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 55: ...ode Weekly Visually inspect the torch body tip electrode start cartridge and shield cup Visually inspect the cables and leads Replace as needed 3 Months Clean exterior of power supply 6 Months Replace...

Page 56: ...ing Blowing air into the unit can cause metal particles to interfere with sensitive electrical components and cause damage to the unit 5 03 Common Faults Problem Symptom Common Cause Insufficient Pene...

Page 57: ...d 75 psi indicators are on indicating the version would be 2 3 A PSI BAR MAX MAX MIN MIN 1 2 3 4 Art A 07988 MIN MAX 0 1 2 3 4 5 6 7 5 When the Fault indicator is on or blinking it will be accompanied...

Page 58: ...ponents in unit 1 Refer to clearance information section 2 04 2 Allow unit to cool 3 Return to authorized service center for repair or replacement GAS LED off FAULT and MIN pressure indicators flashin...

Page 59: ...rts 4 Shorted Torch 5 Temporary Short indicated by 5 blinks per second 6 Power Supply Failure Standard rate of blinking 1 Remove shield cup from torch check upper O Ring position correct if necessary...

Page 60: ...r onto the power supply so that slots in the bottom edges of the cover engage the lower screws 3 Tighten lower screws 4 Reinstall and tighten the upper screws C Filter Element Assembly Replacement The...

Page 61: ...ally when the Filter Element becomes completely saturated The Filter Element can be removed from its housing dried and reused Allow 24 hours for Element to dry Refer to Section 6 Parts List for replac...

Page 62: ...ts on the top of the Filter As sembly enough to allow the Filter Elements to move freely 4 Note the location and orientation of the old Filter Elements 5 Slide out the old Filter Elements First Second...

Page 63: ...ith compressed air CAUTION Dry the torch thoroughly before reinstalling O Ring Lubrication An o ring on the Torch Head andATC Male Connec tor requires lubrication on a scheduled basis This will allow...

Page 64: ...the shield cup body and drag shield cap Do not lubricate the O ring Drag Shield Cap Shield Cup Body O Ring No 8 3488 Art A 03878 4 Remove the tip Check for excessive wear indi cated by an elongated or...

Page 65: ...ber shown B Returns If a product must be returned for service contact your distributor Materials returned without proper authoriza tion will not be accepted 6 02 Ordering Information Order replacement...

Page 66: ...Single Stage Filter Kit includes Filter Hose 7 7507 1 Replacement Filter Body 9 7740 1 Replacement Filter Hose not shown 9 7742 2 Replacement Filter Element 9 7741 1 Two Stage Filter Kit includes Hos...

Page 67: ...9 8219 5 1 Large O Ring 8 3487 6 1 Small O Ring 8 3486 7 Leads Assemblies with ATC connectors includes switch assemblies 1 SL60 20 foot Leads Assembly with ATC connector 4 7834 1 SL60 50 foot Leads As...

Page 68: ...d Mechanized Leads Assemblies with ATC connectors 1 5 foot 1 5 m Leads Assembly with ATC connector 4 7842 1 10 foot 3 05 m Leads Assembly with ATC connector 4 7843 1 25 foot 7 6 m Leads Assembly with...

Page 69: ...CUTMASTER 25mm Manual 0 5080 6 5 PARTS LIST A 07994 6 1 4 2 3 5 7 8 9 10 12 11 10 A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 70: ...nectors 1 5 foot 1 5 m Leads Assembly with ATC Connector 4 7846 1 10 foot 3 05 m Leads Assembly with ATC Connector 4 7847 1 25 foot 7 6 m Leads Assembly with ATC Connector 4 7848 1 50 foot 15 2 m Lead...

Page 71: ...d Cap Deflector 9 8243 Shield Cup Body 9 8237 Shield Cup 9 8218 Tip Tips Tips Tips DRAG TIP CUTTING 40 120A GOUGING CUTTING CUTTING CUTTING Art A 08065_AE DRAG SHIELD CUTTING Shield Cap Deflector 9 82...

Page 72: ...Cup Body 9 8237 Shield Cup 9 8218 Shield Cap Deflector 9 8243 Shield Cup Body 9 8237 Shield Cup 9 8218 Shield Cap Machine 50 60A 9 8238 Drag Shield Cup 9 8235 Drag Shield Cup 70 100A 9 8236 Drag Shiel...

Page 73: ...RUN Rapid Auto Restart SET LATCH switch to RUN for most applications or to Rapid Auto Restart for gouging trimming or expanded metal applications or to LATCH is used for specific applications torch s...

Page 74: ...s Second row Rated cutting current values Third row Conventional load voltage values 4 Sections of the Data Tag may be applied to separate areas of the power supply I Art A 03288 Date of Mfr Output Ra...

Page 75: ...e Plasma 8 Ground ATC Male Connector Front View A 03701 B Mechanized Machine Torch Pin Out Diagram ATC Female Receptacle Front View ATC Male Connector Front View Negative Plasma 3 White Pendant Connec...

Page 76: ...Torch Switch Green White To Power Supply Circuitry B Mechanized Torch Connection Diagram Torch Unshielded Mechanized SL100 Machine Torch Leads Leads with ATC Connector and Remote Pendant Connector Pow...

Page 77: ...CUTMASTER 25mm Manual 0 5080 A 5 APPENDIX This Page Intentionally Blank A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7 0...

Page 78: ...LE SIGNALS LATCH SET RUN RAR 40 CIRCUIT RIBBON CABLE MAX 90 85 80 75 70 65 MIN J2 7 D1 L1 L2 L3 GND D C AIR INLET FILTER REGULATOR SOLENOID VALVE TP1 TP2 TP3 TP4 TP5 TP6 TP7 ATC MAIN PCB ASSY LOGIC PC...

Page 79: ...tten Consent NOTE UNLESS OTHERWISE SPECIFIED 1 RESISTOR VALUES ARE EXPRESSED IN OHMS 1 4W 5 2 CAPACITOR VALUES ARE EXPRESSED IN MICROFARADS uF Chk App TITLE Last Modified Size SCHEMATIC 42X1329 Wednes...

Page 80: ...v Change s July 30 2008 AA Manual released Sept 19 2008 AB Added CE information per ECOB886 May 28 2009 AC Updated 400V 600V schematic in appendix per ECOB1399 Feb 25 2010 AD Updated CNC cable part nu...

Page 81: ...e 86 21 69171135 Fax 86 21 69171139 Thermadyne Asia Sdn Bhd Lot 151 Jalan Industri 3 5A Rawang Integrated Industrial Park Jln Batu Arang 48000 Rawang Selangor Darul Ehsan West Malaysia Telephone 603 6...

Page 82: ...orporate Headquarters 16052 Swingley Ridge Road Suite 300 St Louis MO 63017 Telephone 636 728 3000 Email TDCSales Thermadyne com www thermadyne com A R C W E L D I N G S U P P L I E S 0 7 8 4 7 7 8 7...

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