What to do if Miller Welding System brushes are damaged?
- CChristopher SmithAug 1, 2025
If the brushes of your Miller Welding System are damaged or the brush material is at or near minimum length, replace them.
What to do if Miller Welding System brushes are damaged?
If the brushes of your Miller Welding System are damaged or the brush material is at or near minimum length, replace them.
Model | Big Blue 700X Duo Pro |
---|---|
Max Output | 700 A |
Dimensions | 48.4 x 28.3 x 37.4 inches |
Engine | Kubota D902 |
Fuel Type | Diesel |
Type | Diesel Engine-Driven Welding Generator |
Welding Amperage Range | 20 - 700 A |
Output Current Range | 20 - 700 Amps |
Output Voltage Range | 14 - 44 VDC |
Duty Cycle | 100% |
Voltage | 14-44 VDC |
Weight | 1, 050 lbs |
Input Voltage | None (Engine Driven) |
Input Current | None (Engine Driven) |
Input Power | None (Engine Driven) |
Net Weight | 1, 050 lbs (476 kg) |
Explains warning symbols and general hazards of arc welding.
Covers hazards from fumes, gases, arc rays, fire, cylinders, and EMF.
Details engine-related hazards and compressed air safety precautions.
Covers hazards related to installation, operation, hot metal, and moving parts.
Addresses battery charging, RF interference, EMF, and California Proposition 65 warnings.
Lists key safety standards and provides EMF information.
Details technical specifications for welding, power output, and engine.
Outlines environmental operating conditions such as IP rating and temperature range.
Provides physical dimensions, weight, and tilt angles for safe operation.
Shows voltage and amperage output characteristics for different welding modes.
Shows output characteristics when units are paralleled for increased output.
Details fuel usage and duty cycle limits to prevent overheating.
Displays AC power output curves for single and three-phase configurations.
Covers installation, mounting, grounding to vehicle, and exhaust pipe installation.
Details battery connection, prestart checks, and output terminal connections.
Instructions for connecting output terminals, dual operator modes, single operator, and selecting cable sizes.
Instructions for connecting remote controls and accessories to the receptacle.
Overview and detailed descriptions of all front panel controls, gauges, and indicators.
Explains process selection, arc control, and remote voltage/amperage adjustments.
Covers Lift-Arc TIG, oil pan heater, fuel/hour gauge, and remote control usage.
Describes the types and functions of North American auxiliary power receptacles.
Describes the types and functions of auxiliary power receptacles for export models.
Provides information on GFCI receptacles, including resetting and testing procedures.
Covers maintenance labels, schedules, engine checks, air cleaner, fuel/lube systems, and brushes.
Details the function and reset procedures for various supplementary protectors and circuit breakers.
Explains voltmeter/ammeter displays and how they indicate fault conditions and troubleshooting steps.
Provides a table of common welding issues and their remedies.
Troubleshooting guide for standard and three-phase generator power output issues.
Troubleshooting guide for common engine problems like starting, stopping, and oil consumption.
Explains what wetstacking is and how to prevent it during engine run-in.
Step-by-step guide for performing the engine run-in procedure using a load bank.
Step-by-step guide for performing the engine run-in procedure using a resistance grid.
Covers equipment selection, grounding, and calculating power needs.
Lists power requirements for industrial, farm/home, and contractor loads.
Explains motor starting power calculations and generator supply limits.
Illustrates typical connections for supplying standby power from the generator.
Provides tables for selecting appropriate extension cord lengths.
Exploded views and parts lists for the main assembly, parts 1 and 2.
Exploded views and parts lists for control box, front panel, weld output, and auxiliary power panels.
Exploded views and parts lists for the weld control and generator assemblies.
Lists various wiring harnesses and their connector types.
Details the terms, conditions, and exclusions of the Miller limited warranty.
Provides fields for owner details and contact information for service and parts.