Miller Spectrum 875 User Manual

TABLE OF CONTENTS
SECTION 7 − MECHANIZED OPERATION 30.....................................................
7-1. XT60M Mounting Position 30..............................................................
7-2. Remote Control Receptacle 30............................................................
7-3. Remote Control Cable Functions 31........................................................
7-4. Remote Voltage Sense Connection 31......................................................
7-5. Shield Sense Tab 32.....................................................................
7-6. Cut Charts 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/Installation 36..........................................................
8-5. Checking Or Replacing Filter Element (Part No. 227877) 37....................................
8-6. Status/Trouble Lights 38.................................................................
8-7. Troubleshooting Power Source 39.........................................................
8-8. Troubleshooting Torch 40.................................................................
SECTION 9 − ELECTRICAL DIAGRAM 42........................................................
SECTION 10 − PARTS LIST 46..................................................................
WARRANTY

Miller Spectrum 875 Specifications

General

Amperage Output	20-60 A
CNC Interface	Optional
Gas Supply	Clean, dry, oil-free air or nitrogen
Input Frequency	50/60 Hz
Output Current Range	20-60 A
Welding Process	Plasma cutting
TIG Start	Not applicable
Rated Output	60 A
Cutting Capability	3/4 in (19 mm)
Cutting Capacity	1 in (25 mm)
Severance Capacity	1-1/4 in (32 mm)
Input Phase	1- or 3-Phase
Duty Cycle	60%