Description
Miller LegendR302
OM-4430217 243R
Processes
From Miller to You
TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION
WARRANTY
TABLE OF CONTENTS
SECTION 11 − GENERATOR POWER GUIDELINES
OPTIONS AND ACCESSORIES
NOTICE − Indicates statements not related to personal injury
1-1. Symbol Usage
1-2. Arc Welding Hazards
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING
WELDING can cause fire or explosion
FUMES AND GASES can be hazardous
BUILDUP OF GAS can injure or kill
ARC RAYS can burn eyes and skin
TRAPPED AIR PRESSURE AND WHIPPING HOSES can cause injury
1-3. Engine Hazards
1-4. Compressed Air Hazards
BATTERY ACID can BURN SKIN and EYES
1-5. Additional Symbols For Installation, Operation, And Maintenance
For Gasoline Engines
1-7. Principal Safety Standards
1-6. California Proposition 65 Warnings
1-8. EMF Information
Indique des instructions spécifiques
2-1. Signification des symboles
SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION
2-2. Dangers relatifs au soudage à l’arc
DES PIÈCES CHAUDES peuvent provoquer des brûlures graves
2-3. Dangers existant en relation avec le moteur
2-4. Dangers liés à l’air comprimé
D Affûter l’électrode au tungstène uniquement à la meuleuse dotée de protecteurs. Cette manœuv- re est à exécuter dans un endroit sûr lorsque l’on porte l’équipement homologué de protection du visage, des mains et du corps
Pour les moteurs à essence
2-6. Proposition californienne 65 Avertissements
2-7. Principales normes de sécurité
2-8. Information EMF
3-1. Symbol Definitions
SECTION 3 − DEFINITIONS
Work like a Pro
4-1. Description
SECTION 4 − SPECIFICATIONS
4-2. Weld, Power, And Engine Specifications
4-3. Dimensions, Weights, and Operating Angles
4-5. Fuel Consumption While Welding And Using Generator Power
4-4. Dimensions For Units With Optional Running Gear
VERTICAL
4-6. Generator Power Curve
WELD POSITION FLAT
HORIZONTAL
4-8. TIG Mode Volt-Ampere Curves
4-7. Duty Cycle
Continuous Welding
4-9. Stick And MIG Mode Volt-Ampere Curves
A. CC/DC Stick Mode
B. CV/DC MIG Mode
Movement Do not lift unit from end
SECTION 5 − INSTALLATION
5-1. Installing Welding Generator
vehicle frame. Always connect a ground wire
Store battery in warm area
5-2. Engine Prestart Checks
Follow run-in procedure in engine
Keep battery in good condition
Connect negative − cable last
5-3. Connecting Or Replacing The Battery
Replacing The Battery
Remove end panel to replace battery
5-4. Installing Exhaust Pipe
Work like a Pro
Stop engine and let cool
damage your machine
5-5. Connecting To Weld Output Terminals
Stop engine
Failure to properly connect
5-7. Remote Receptacle Information
5-6. Selecting Weld Cable Sizes
SECTION 6 − OPERATING WELDING GENERATOR
6-1. Front Panel Controls
For maximum weld output above
Generator power is available at recep
6-2. Description Of Engine Controls See Section
6-3. Cold Weather Engine Operation
Engine Control Switch
Either Run/Idle position
6-4. Controlling Engine Speed And Weld/Generator Output
Generator Power Output
Engine Controls
Stick Positions
6-5. Process Switch
Wire Position
The unit will not return to idle speed
Application
6-6. Stick Start Procedure − Scratch Start Technique
6-7. TIG Lift-Arc Start Procedure
Lift-Arc t TIG
Max 160 A DC
6-8. Remote Voltage/Amperage Control
weld load and generator power
7-1. 60 Hz Generator Power Receptacles And Supplementary Protectors
SECTION 7 − OPERATING AUXILIARY EQUIPMENT
Generator power is available at
Work like a Pro
7-2. Variable Frequency Hz Generator Power Receptacle RC3
Press button to reset. If supple
rized Service Agent
Receptacle
Each 120 V Duplex
Receptacle
Current Available in Amperes
information. Service engine more often if
SECTION 8 − MAINTENANCE & TROUBLESHOOTING
8-1. Routine Maintenance
for important start-up, service, and storage
OM-4430 Page
8-2. Maintenance Label
Stop engine
8-4. Servicing Air Cleaner
8-3. Servicing Optional Spark Arrestor
Stop engine and let cool
8-5. Changing Engine Oil, Oil Filter, And Fuel Filter
Stop engine and let cool
Stop engine, tighten connec- tions as necessary, and wipe up fuel
8-6. Overload Protection
Stop engine
803 773−A / Ref. 216 172-D
Remedy
8-7. Troubleshooting
A. Welding
Trouble
Remedy
Trouble
Remedy
Trouble
D. Engine
Trouble
Remedy
9-1. Recommended Spare Parts
SECTION 9 − PARTS LIST
Figure 10-1. Circuit Diagram For Welding Generator Models
SECTION 10 − ELECTRICAL DIAGRAMS
232 961-A
OM-4430 Page
Be sure equipment has double insulated symbol and/or word- ing on it
SECTION 11 − GENERATOR POWER GUIDELINES
11-1. Selecting Equipment
11-2. Grounding Generator To Truck Or Trailer Frame
Amperes x Volts = Watts
11-3. Grounding When Supplying Building Systems
11-4. How Much Power Does Equipment Require?
Use ground device as stated in electrical codes
Rating
11-5. Approximate Power Requirements For Industrial Motors
11-6. Approximate Power Requirements For Farm/Home Equipment
Industrial Motors
Starting Watts
11-7. Approximate Power Requirements For Contractor Equipment
Contractor
Rating
Motor Start
11-8. Power Required To Start Motor
11-9. How Much Power Can Generator Supply?
Single-Phase Induction Motor Starting Requirements
Customer-supplied equipment
11-10. Typical Connections To Supply Standby Power
Current
11-11. Selecting Extension Cord Use Shortest Cord Possible
Cord Lengths for 120 Volt Loads
Maximum Allowable Cord Length in ft m for Conductor Size AWG
METRIC
SOCKET/WRENCH SELECTION TABLE
SOCKET/WRENCH SELECTION TABLE
U.S. STANDARD
Ref. AWS/ANSI A2.4
Welding Symbols
Page
Page
Support
Warranty Questions?
Service
Call 1-800-4-A-MILLER for your local Miller distributor
Please complete and retain with your personal records
For Service
Owner’s Record
Contact a DISTRIBUTOR or SERVICE AGENCY near you