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Miller Electric manufactures a full line
of welders and welding related equipment.
For information on other quality Miller
products, contact your local Miller distributor to receive the latest full
line catalog or individual specification sheets. 

To locate your nearest

distributor or service agency call 1-800-4-A-Miller, or visit us at
www.MillerWelds.com on the web.

Thank you

 and 

congratulations

 on choosing Miller. Now you can get

the job done and get it done right. We know you don’t have time to do
it any other way.

That’s why when Niels Miller first started building arc welders in 1929,
he made sure his products offered long-lasting value and superior
quality. Like you, his customers couldn’t afford anything less. Miller
products had to be more than the best they could be. They had to be the
best you could buy.

Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They
will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick
and easy. With Miller you can count on years
of reliable service with proper maintenance.
And if for some reason the unit needs repair,
there’s a Troubleshooting section that will
help you figure out what the problem is. The
parts list will then help you to decide the
exact part you may need to fix the problem.
Warranty and service information for your
particular model are also provided.

Miller is the first welding

equipment manufacturer in

the U.S.A. to be registered to

the ISO 9001 Quality System

Standard.

Working as hard as you do

 every power source from

Miller is backed by the most

hassle-free warranty in the

business.

From Miller to You

Mil_Thank 2017

06

Summary of Contents for Spectrum 875 Auto-Line

Page 1: ...cription Air Plasma Cutting and Gouging Air Plasma Cutter OM 264259C 2018 03 Spectrum 875 And XT60 Torch R File Plasma Cutters For product information Owner s Manual translations and more visit www Mi...

Page 2: ...ntinue the tradition They re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929 This Owner s Manual is designed to help you get...

Page 3: ...Environmental Specifications 12 4 4 Duty Cycle And Overheating 12 4 5 Torch Dimensions 13 4 6 Power Source Dimensions And Weight 13 SECTION 5 INSTALLATION 14 5 1 Selecting a Location 14 5 2 Connectin...

Page 4: ...ts 32 SECTION 8 MAINTENANCE TROUBLESHOOTING 34 8 1 Routine Maintenance 34 8 2 Checking Shield Cup Shutdown System 34 8 3 Checking Replacing Retaining Cup Tip And Electrode 35 8 4 Wrapper Removal Insta...

Page 5: ...be emptied and properly cleaned first D Do not cut where the atmosphere can contain flammable dust gas or liquid vapors such as gasoline D Do not cut pressurized cylinders pipes or vessels D Wear body...

Page 6: ...asers fluxes and metals D Work in a confined space only if it is well ventilated or while wearing an air supplied respirator Fumes from cutting and oxygen depletion can alter air quality causing injur...

Page 7: ...G EQUIPMENT can injure D Use lifting eye to lift unit only NOT running gear gas cylinders or any other accessories D Use correct procedures and equipment of ade quate capacity to lift and support unit...

Page 8: ...k NFPA Standard 51B from National Fire Protection Association Quincy MA 02169 phone 1 800 344 3555 website www nfpa org OSHA Occupational Safety and Health Standards for General Industry Title 29 Code...

Page 9: ...e travaillant sur les lieux contre les tincelles et le m tal chaud D Assurez vous qu aucune tincelle ni particule de m tal ne peut se glisser dans de petites fissures ou tomber dans d autres pi ces D...

Page 10: ...LIGEABLE dans les sources de soudage onduleur UNE FOIS l alimentation coup e D teignez l unit d branchez le courant lectrique et d chargez les condensateurs d alimentation selon les instructions indiq...

Page 11: ...er des br lures n approchez pas le tube du chalumeau lorsque vous avez appuy sur le g chette D Porter un quipement de protection pour le corps fait d un mat riau r sistant et ignifuge cuir coton robus...

Page 12: ...FER L QUIPEMENT D Pr voir une p riode de refroidissement respecter le cycle op ratoire nominal D R duire l amp rage paisseur avant de continuer couper ou r duire le facteur de marche Danger D EXPLOSIO...

Page 13: ...3 788 2700 website www cganet com Safety in Welding Cutting and Allied Processes CSA Standard W117 2 from Canadian Standards Association Standards Sales 5060 Spectrum Way Suite 100 Mississauga Ontario...

Page 14: ...round On U0 Rated No Load Voltage OCV I1max Rated Maximum Supply Current IP Degree Of Protection I1eff Maximum Effec tive Supply Cur rent Plasma Arc Cutting PAC Increase Single Phase Off U1 Primary Vo...

Page 15: ...d rating Volts AC RMS U1 Amps RMS I1 I1 eff 208 Volts AC 1 Phase 46 9 29 7 230 Volts AC 1 Phase 41 6 29 4 Power Factor KVA KW at Rated Output Volts AC RMS U1 Power Factor KVA KW 208 0 99 9 92 9 85 230...

Page 16: ...to 131 F 20 to 55 C Temp_2016 07 4 4 Duty Cycle And Overheating Duty Cycle is percentage of 10 minutes that unit can cut at rated load without overheating Duty cycle is based on an ambient tem peratur...

Page 17: ...65 001 B Ref 265 001 B 8 375 in 213 mm 6 25 in 159 mm 8 in 202 mm 15 594 in 396 mm long body 2 141 in 54 mm 1 0625 in 27 mm 1 375 in 35 mm 4 6 Power Source Dimensions And Weight loc_2 3 96 Ref 805 159...

Page 18: ...ip 5 1 Selecting a Location loc_small 2015 04 Special installation may be required where gasoline or volatile liquids are present see NEC Article 511 or CEC Section 20 1 Lifting Handle Use handle to l...

Page 19: ...um Use filter kit 300491 or 228926 where conditions at the work site allow moisture oil or other particulates into the air line 3 Gas Air Filter Inlet Opening 4 Hose Hose must have a minimum inside di...

Page 20: ...nnector to unit To disconnect torch Rotate securing pin counterclockwise to unlock connector from unit Push quick connect collar back toward unit to release nipple and pull torch connector away from u...

Page 21: ...uit breaker with time current curves comparable to the recommended fuse 2 Time Delay fuses are UL class RK5 See UL 248 3 Normal Operating general purpose no intentional delay fuses are UL class K5 up...

Page 22: ...lerWelds com OM 264259 Page 18 5 7 Selecting A Location And Connecting Input Power Input13 2015 08 Ref 805 159 A 805 162 A Install conductors into a deenergized line disconnect device 1 L1 L2 230 VAC...

Page 23: ...Connect plug to receptacle 3 Input Power Cord 4 Disconnect Device switch shown in the OFF position 5 Disconnect Device Grounding Terminal 6 Disconnect Device Line Terminals 7 Black And White Input Co...

Page 24: ...erator Equipped With A Full KVA Receptacle NEMA 14 50R Using Adapter Cord Part No 300158 805 304 A 1 Adapter Cord 2 Plasma Cutter Plug 3 Generator Receptacle Use adapter cord to connect plasma cutter...

Page 25: ...Wire Load 3 Neutral Brass Terminal And Prong Not Used 4 Load 1 Brass Terminal And Prong 5 Load 2 Brass Terminal And Prong 6 Ground Brass Terminal And Prong 7 Black And White Input Conductors 8 Green O...

Page 26: ...ing Alternative Plug 1 Supplied 230 VAC Plug Cut cord close to plug 2 Alternative Plug 230 VAC Plug Shown 3 Input Black Lead Brass Terminal 4 Input White Lead Brass Terminal 5 Ground Green Terminal 6...

Page 27: ...reduce DC bus voltage 4 Cut Gouge Switch Place switch in appropriate position for de sired process Unit will automatically regu late pressure to 75 psi 517 kPa for cutting and 60 psi 413 kPa for gougi...

Page 28: ...64259 Page 24 6 2 Consumables Storage Compartment Ref 805 160 A Rear of Unit 1 Consumables Storage Compartment This compartment provides convenient access to consumables and parts 1 6 3 Trigger Safety...

Page 29: ...ce that does not fall away after being cut For more information go to MillerWelds com Pulling rather than pushing the torch makes cutting easier Use a proper guide or template for accurate cutting ope...

Page 30: ...fall away after being cut For more information go to MillerWelds com For standard shielded cutting place drag shield on edge of metal For extended non shielded cutting use 1 8 in 3 2 mm standoff dista...

Page 31: ...onnect work clamp to portion of workpiece that does not fall away after being cut For more information go to MillerWelds com Trigger pilot arc once before starting to gouge Raise trigger lock and pres...

Page 32: ...acity is 7 16 in 11 mm Connect work clamp to portion of workpiece that does not fall away after being cut For more information go to MillerWelds com Hold torch at approximately 45 to the workpiece Rai...

Page 33: ...urrent Material Thickness Recommended Cut Speeds Inches mm IPM mm min 40 14ga 0 08 2 0 221 5613 12ga 0 11 2 7 189 4800 1 8 0 13 3 2 111 2819 3 16 0 19 4 8 81 2057 1 4 0 25 6 4 52 1321 60 1 4 0 25 6 4...

Page 34: ...machine torch in stalled Remote trigger is dis abled when a handheld torch is installed 1 Remote Control Receptacle RC61 RC61 provides remote arc start inputs when using the XT60M machine torch Connec...

Page 35: ...input power Remove wrapper see Section 8 4 Remote voltage sense is an arc voltage output signal for automatic torch height adjustment 1 Snap in Blank 2 Secondary Interconnect Board PC4 3 Receptacle R...

Page 36: ...Cap Shield XT60M Torch Sense Tab 265226 263310 256029 249929 60 A 256026 256028 263834 262643 40 A O Ring Ref 265 001 A Shield sense tab is located in the consumable storage box on left side of unit w...

Page 37: ...9 26 660 17 432 154 3 4 19 0 18 457 12 305 Aluminum Arc Current Arc Voltage Pierce Delay Material Thickness Maximum Cut Speeds Optimum Cut Speeds Inches mm IPM mm min IPM mm min 40 150 0 1 32 0 8 610...

Page 38: ...adable Labels l Cracked Parts Air Filter Regulator Assembly Filter n Gas Air Hose n l Torch Body Cable Every 6 Months OR Inside Unit 8 2 Checking Shield Cup Shutdown System Ref 253 554 A Power must be...

Page 39: ...lectrode at the same time 1 Shield Cup Remove shield cup Check cup for cracks and replace if necessary 2 Tip 3 Opening Remove tip Check tip and replace if open ing is deformed or 50 oversize If inside...

Page 40: ...s Off Check to see that front panel lights LEDs have stopped flashing and are off before removing wrapper 1 Wrapper 2 Front Bezel 3 Rear Bezel 4 Torx Screw Fine Thread Remove 13 screws from wrapper an...

Page 41: ...from unit see Section 8 4 1 Rear Bezel Remove rear bezel from unit 2 Filter Bracket Screws Remove filter bracket screws Pull filter bracket toward front of unit until gas air supply fitting is past r...

Page 42: ...ted pressure in the unit is high Cup On Torch cup is loose or off Once cup is finger tightened unit power must be cycled off and back on again Cup Flashing rate is steady for 15 seconds or until torch...

Page 43: ...sists have Factory Authorized Service Agent check torch and unit Temperature status light On Unit overheating see Section 4 4 Allow fan to run the Trouble light goes out when the unit has cooled If tr...

Page 44: ...heck input air pressure Check that compressed air is clean dry and oil free Use filter kit 300491 or 228926 if necessary Maintain 1 8 in 3 2 mm standoff for extended tip cutting over 40 amps Do not dr...

Page 45: ...OM 264259 Page 41 Notes...

Page 46: ...OM 264259 Page 42 SECTION 9 ELECTRICAL DIAGRAM Figure 9 1 Circuit Diagram For Hand Held Torch Applications...

Page 47: ...OM 264259 Page 43 234 157 B...

Page 48: ...OM 264259 Page 44 Figure 9 2 Circuit Diagram For Machine Torch Applications...

Page 49: ...OM 264259 Page 45 265 998 A...

Page 50: ...953 XT60 20 ft Handheld Replacement Torch 1 249954 XT60 50 ft Handheld Replacement Torch 1 249995 XT60M 25 ft Long Body Machine Torch Replacement 1 249956 XT60M 50 ft Long Body Machine Torch Replaceme...

Page 51: ...andard Cutting Extended Cutting Gouging 3 249929 60A Tip Standard Cutting Extended Cutting 4 256026 Electrode 5 256028 Swirl Ring 6 263834 O Ring 7 265226 60A Shield Machine Cutting 8 262643 40A Tip S...

Page 52: ...Leads 50 ft w Quick Disconnect 1 4 256039 Torch Body Kit 1 5 249972 Torch Trigger Assembly w Spring 1 6 249973 Cup Detect Switch w Screws 30 60Amp 1 252951 Grease Silicone 1 249953 Torch Replacement 2...

Page 53: ...1 4 259361 Torch Sleeve 1 5 256040 Main Body W Switch 1 6 259334 Cup Detect Switch 1 7 243754 Kit XT60M QD w Wing Head Fastener 249955 Torch Machine Long Body Replacement 25 ft 1 249956 Torch Machine...

Page 54: ...auge 063 in 22 Gauge 031 in 24 Gauge 025 in 20 Gauge 037 in 18 Gauge 050 in 14 Gauge 078 in 1 8 in 125 in 3 16 in 188 in 1 4 in 25 in 5 16 in 313 in 3 8 in 375 in 1 2 in 5 in MATERIAL THICKNESS REFERE...

Page 55: ...or Tregaskiss Guns No Labor Water Cooling Systems Wireless Remote Foot Hand Controls and Receivers Work Stations Weld Tables No Labor 5 6 Months Parts Batteries 6 90 Days Parts Accessory Kits Canvas C...

Page 56: ...h your personal records Always provide Model Name and Serial Style Number Contact a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal Safety Equi...

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