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Lincoln Electric SA-250 User Manual

Lincoln Electric SA-250
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SA-250
OPERATOR’S MANUAL
For Machines with Code Numbers 10890
IM747
January, 2003
Safety Depends on You
Lincoln arc welding equipment
is designed and built with safety
in mind. However, your overall
safety can be increased by
proper installation ... and
thoughtful operation on your
part. DO NOT INSTALL,
OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT
READING THIS MANUAL AND
THE SAFETY PRECAUTIONS
CONTAINED THROUGHOUT.
And, most importantly, think
before you act and be careful.
R
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
Copyright © 2003 Lincoln Global Inc.
NTRL/C
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Lincoln Electric SA-250 Specifications

General IconGeneral
Fuel TypeDiesel
Duty Cycle100% at 250 Amps
TypeEngine Driven Welding Generator
Rated Output250 amps DC
Max Open Circuit Voltage80 V

Summary

Safety Depends on You

SAFETY

California Proposition 65 Warnings

Notifies about potential cancer and reproductive harm from engine exhaust.

Arc Welding Hazards

Warns about the dangers of arc welding and advises protection.

Electric and Magnetic Fields

Discusses potential interference of EMF fields with pacemakers and health effects.

Electric Shock Dangers

Details hazards of electric shock from welding circuits and precautions.

Arc Rays Burn Protection

Advises on protecting eyes and skin from arc rays and spatter.

Fumes and Gases Dangers

Explains health risks from welding fumes and gases and ventilation needs.

Welding Sparks Fire and Explosion

Warns about fire and explosion risks from welding sparks and materials.

Cylinder Explosion Hazards

Covers safety precautions for handling compressed gas cylinders.

Electrically Powered Equipment Safety

Provides safety guidelines for electrical grounding and installation.

IMPORTANT INFORMATION AND DEFINITIONS

Examine Carton for Damage

Instructions for inspecting equipment for shipping damage immediately upon receipt.

Warning and Caution Definitions

Explains the meaning and seriousness of WARNING and CAUTION statements in the manual.

INSTALLATION

Technical Specifications

Details engine, welder, generator, and physical specifications for the SA-250.

Pre-Operation Installation Steps

Covers initial setup, safety, and preparation before operating the equipment.

Machine Grounding Requirements

Provides guidance on proper grounding of the machine according to electrical codes.

Exhaust Spark Arrester

Discusses the need for and selection of an exhaust spark arrester.

Location and Ventilation Guidelines

Recommends optimal placement for airflow and exhaust fume venting.

Lift Bail Usage

Instructions on safely using the lift bail for moving the equipment.

Trailer Attachment Considerations

Factors to consider when adapting a trailer for the welding equipment.

Polarity and Cable Size Selection

Guide to connecting cables and selecting appropriate sizes for welding distance.

Pre-Operation Service Checks

Essential checks for oil, fuel, and cooling system before starting the engine.

Battery Charging Safety

Safety precautions and procedures for connecting and charging the battery.

OPERATION

Operation Safety Precautions

General safety guidelines to follow during operation of the welder.

General Description of SA-250

Overview of the SA-250's capabilities, engine, and control panel features.

Engine Operation Procedures

Instructions for starting, stopping, and fuel consumption of the diesel engine.

Cold Weather Starting Tips

Guidance for starting the engine in cold temperatures and avoiding starting fluids.

Welder Operation Controls

Explanation of how to control welding current using the selector and adjustment knobs.

Duty Cycle Explained

Defines duty cycle and how it applies to the SA-250's output ratings.

Idler Operation Modes

Describes the 'High' and 'Auto' modes of the electronic engine idler.

Auxiliary Power Output

Information on the AC auxiliary power rating and available receptacles.

ACCESSORIES

Optional Field Installed Accessories

Lists and describes various optional kits and modules for the SA-250.

Pipe Thawing Warning

Caution against using the arc welder for pipe thawing due to safety risks.

MAINTENANCE

General Maintenance Instructions

Basic cleaning and maintenance tasks for the welder and controls.

Cooling System Maintenance

Procedures for maintaining the radiator, coolant, and antifreeze.

Bearings Lubrication

Guidance on greasing bearings, emphasizing cleanliness and frequency.

Commutator and Brush Care

Instructions for inspecting, cleaning, and replacing commutator and brushes.

Idler Maintenance Procedures

Steps for maintaining the idler solenoid plunger and ensuring proper grounding.

Nameplate Inspection

Reminder to inspect nameplates and labels for legibility during maintenance.

Fuel System Air Purging

Steps for purging air from the fuel system for Perkins 104-22 engine.

ENGINE SERVICE SCHEDULE

TROUBLESHOOTING

How to Use Troubleshooting Guide

Explains the three-step process for diagnosing and resolving machine malfunctions.

Welder Troubleshooting

Lists common welder problems, possible causes, and recommended actions.

Engine Troubleshooting

Diagnoses engine starting issues, erratic operation, and shutdown causes.

Electronic Idler Troubleshooting

Provides a guide for diagnosing and resolving issues with the electronic idler system.

DIAGRAMS

SA-250 Wiring Diagram

Illustrates the electrical connections and components of the SA-250 welder.

Dimension Print

Provides the physical dimensions and layout of the SA-250 welder.

IMPORTANT SAFETY WARNINGS

General Safety Practices

Universal safety advice including contact with live parts, flammables, and PPE.

Read and Understand Instructions

Emphasizes reading manufacturer instructions and following employer safety practices.

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