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Miller Electric
Metro 250D manual OM-402
Models:
Metro 250D
1
37
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Troubleshooting
Specs
Install
Parts list
Electrical Diagram
Maintenance
Run-In Procedure
Adjusting Engine Speed
Battery Explosion can Blind
Servicing Air Cleaner
Page 37
Image 37
Notes
OM-402
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Image 37
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Contents
Processes
OM-402B
Description
From Miller to You
Metro 250D
Table of Contents
Page
Symbol Usage
Safety Precautions − Read Before Using
Arc Welding Hazards
Engine Hazards
Moving Parts can cause injury
Battery Explosion can Blind
Engine Exhaust Gases can kill
Engine Heat can cause fire
EMF Information
Principal Safety Standards
Radiation can cause interference
ARC Welding can cause interference
Consignes de sécurité − lire avant utilisation
Signification des symboles
UN Choc Électrique peut tuer
LES Fumées ET LES GAZ peuvent être dangereux
DES Particules Volantes peuvent blesser les yeux
LE Soudage peut provoquer un in- cendie ou une explosion
DES Pièces Chaudes peuvent provoquer des brûlures graves
LE Bruit peut affecter l’ouïe
’EXPLOSION DE LA Batterie peut
DES Organes Mobiles peuvent provoquer des blessures
LA Chaleur DU Moteur peut pro- voquer un incendie
LA Chute DE L’APPAREIL peut blesser
Information sur les champs électromagnétiques
Principales normes de sécurité
Électrostatiques peuvent endommager les circuits imprimés
UNE Remorque QUI Bascule peut entraîner des blessures
Definitions
Symbols and Definitions
General Precautionary Label
Fan and Moving Parts Label
Battery Charging Label
Diesel Fuel Label
Hot Muffler Label
Activation Tag
Falling Equipment Label
− 50 h Std
Manufacturer’s Rating Label
Do Not Use Ether Label
Weld, Power, and Engine Specifications
Specifications
Dimensions, Weights, and Operating Angles
Volt-Ampere Curve
Duty Cycle and Overheating
Fuel Consumption
AC Auxiliary Power Curve
Installation
Installing Welding Generator
Location Grounding
Engine Prestart Checks
Connecting Battery and Installing Exhaust Pipe
Stop engine
Connect negative − cable last
Selecting Weld Cable Sizes
Connecting to Weld Output Terminals
100 ft 30 m or Less
10 − 60% 60 − 100% Duty 10 − 100% Duty Cycle
Ref. ST-158
Remote 14 Receptacle RC1 Information
Socket Information
Operating the Welding Generator
Using Idle Lock Switch
Front Panel Controls
Plug
Remote Amperage and Contactor Control
Operating Auxiliary Equipment
Auxiliary Power Receptacles
Maintenance & Troubleshooting
100 Hrs Maintenance
Changing Engine Oil and Oil Filter
To Clean air filter
Servicing Air Cleaner
Do not clean housing with air hose
Changing Fuel Filters
Idle Speed Adjustment
Adjusting Engine Speed
Weld/Power Speed Adjustment
Remote Control Circuit
Weld And Auxiliary Power Circuits
Overload Protection
Engine Control Circuit
Stop engine and let cool. Reinstall cleanout plug
Welding Troubleshooting
Servicing Optional Spark Arrestor
Trouble Remedy
Engine Troubleshooting
Auxiliary Power Troubleshooting
Ule
OM-402
Circuit Diagram for Welding Generator
Electrical Diagram
SC-181
Wetstacking
Run-In Procedure
Heavy loading during first
Load Bank
Run-In Procedure Using Load Bank
Run-In Procedure Using Resistance Grid
Selecting Equipment
Auxiliary Power Guidelines
Grounding Generator to Truck or Trailer Frame
How Much Power Does Equipment Require?
Grounding When Supplying Building Systems
Amperes x Volts = Watts
Approximate Power Requirements for Farm/Home Equipment
Approximate Power Requirements for Industrial Motors
Industrial Motors Rating Starting Watts Running Watts
Farm/Home Equipment Rating Starting Watts Running Watts
Contractor Rating Starting Watts Running Watts
Approximate Power Requirements for Contractor Equipment
How Much Power Can Generator Supply?
Power Required to Start Motor
Single-Phase Induction Motor Starting Requirements
KVA/HP x HP x 1000 = Starting Amperage Volts
Typical Connections to Supply Standby Power
Current Load Watts Amperes
Selecting Extension Cord Use Shortest Cord Possible
Main Assembly
Parts List
ST-801 488-A
PC6
11.1
CB9
Panel, Front w/Components .1 Item
CB5
11.2
Generator .1 Item
Diode Board
Control Box w/Components .1 Item
OM-402
Page
OM-402
Page
Metro 250D
Options and Accessories
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Miller Electric Mfg. Co
Owner’s Record