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Miller Electric
D-74D
manual
Electrical Diagram
Models:
D-74D
1
28
40
40
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Troubleshooting
Specs
Equipment Connection Diagrams
Symbol Usage
Decwire6/05
Maintenance
Diagnostics
Harness Connectors/Receptacles
Main Assembly
Setting Internal DIP Switches
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SECTION 8 − ELECTRICAL DIAGRAM
Figure
8-1.
Circuit Diagram
OM-1500-6
Page 24
Page 27
Page 29
Page 28
Image 28
Page 27
Page 29
Contents
OM-1500-6 206 805H
Processes
Description
File MIG Gmaw
From Miller to You
Table of Contents
Directives
Decwire6/05
Standards
Symbol Usage
Marks a special safety message
Arc Welding Hazards
Electric Shock can kill
ARC Rays can burn eyes and skin
Welding can cause fire or explosion
Flying Metal can injure eyes
Buildup of GAS can injure or kill
California Proposition 65 Warnings
EMF Information
Principal Safety Standards
About Pacemakers
LES Fumées ET LES GAZ peuvent être dangereux
UNE Décharge Électrique peut entraîner la mort
Indique un message de sécurité particulier
LE Soudage peut provoquer un
Incendie ou une explosion
DES Particules Volantes peuvent blesser les yeux
DES Pièces Chaudes peuvent provoquer des brûlures graves
Risque D’INCENDIE OU D’EXPLO
LA Chute DE L’APPAREIL peut blesser
’EMPLOI Excessif peut SUR
DES Organes Mobiles peuvent provoquer des blessures
Principales normes de sécurité
En ce qui concerne les stimulateurs cardiaques
Drive rolls can injure fingers
Disconnect input plug or power before working on machine
Keep your head out of the fumes
Symbols And Definitions
Rating Label For CE Products
Site Selection
Specifications
Rating
Equipment Connection Diagrams
Rear Panel Connections And Rotating Drive Assembly
Wire Type, Size, And Feed Speed Capability Table
Motor Speed Wire Type Wire Size Feed Speed Capability
Pin Plug Information
Gun Recommendation Table
Installing And Threading Welding Wire
Setting Internal DIP Switches
Current Detect Override OFF Factory Default S1-1 And S1-2
Right Side Motor Control Board PC1 Left Side Motor PC101
Automatic Run-In OFF S1-1 And S1-2
Optional Equipment DIP Switch Settings
PC60
Power Switch
Left/Right Select Switch
Power Switch
Jog/Purge
Trigger Hold Switches
Trigger Hold Switch
Voltage Control And Digital Meters
Disconnect power before maintaining
Routine Maintenance
Months
Diagnostics
Troubleshooting
Disconnect power before troubleshooting
Wire feeds, shielding gas flows, but
Trouble Remedy
OM-1500-6
− Electrical Diagram
204 716-B
Main Assembly
21 −2
Part Description Quantity
Control Box
Harness Connectors/Receptacles
130
Drive Assembly, Wire
Drive Assembly, Wire -1Item
203
Drive Roll And Wire Guide Kits Fraction Metric
Kit Roll Wire Size
Roll Drive
Roll Drive Kit
Page
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Your distributor and/or equipment manufacturer’s
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