Hobart Welding Products
250A
manual
Troubleshooting
Specs
Parts list
Electrical Diagram
Symbol Usage
Connecting Work Clamp
Dimension
Safety
Service
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Page 3
Page 5
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Page 5
Contents
Processes
Description
From Hobart to You
Table of Contents
Page
Symbol Usage
Marks a special safety message
Plasma Arc Cutting Hazards
Cutting can cause fire or explosion
Exploding Parts can injure
Flying Sparks can cause injury
ARC Rays can burn eyes and skin
Noise can damage hearing
California Proposition 65 Warnings
EMF Information
Principal Safety Standards
About Pacemakers
Signification des symboles
LE Coupage présente un risque de feu ou d’explosion
UNE Décharge Électrique peut entraîner la mort
Identifie un message de sécurité particulier
Risque de blessure en cas
LE Bruit peut endommager l’ouïe
LES Fumées ET LES GAZ peuvent être dangereux
LE Plasma D’ARC peut entraîner des blessures
LES Bouteilles peuvent exploser si elles sont endommagées
DES Pieces Chaudes peuvent pro- voquer des brûlures graves
DES Organes Mobiles peuvent provoquer des blessures
DES Particules Volantes peuvent blesser les yeux
Information sur les champs électromagnétiques
Principales normes de sécurité
Consignes relatives aux stimulateurs cardiaques
I1max
− Definitions
I1eff
− Installation
Specifications For Power Source
Specifications For Torch
Duty Cycle And Overheating
Torch Dimensions And Weight
Dimensions And Weight
Selecting a Location
Movement Location And Airflow
Connecting Work Clamp
Connecting Input Power
− Operation
Trigger Safety Lock
Controls
Sequence Of Operation
Pilot arc starts immediately when trigger is pressed
197 196
− Maintenance & Troubleshooting
Months
Trouble Light And Checking Shield Cup Shutdown System
Checking Torch Shield Cup Shutdown System
Torch Connections
Torch And Work Cable Connections
Work Cable Connections
Turn Off power source before checking torch parts
Checking/Replacing Retaining Cup, Tip, And Electrode
Troubleshooting Power Source
Troubleshooting Torch
− Electrical Diagram
Circuit Diagram
− Parts List
Main Assembly
Dia Part Description Quantity Mkgs
Ring 196935 196929 197567 196926 196925 196927
Ring
Cup 196928
Page
Page
Service
Support
Contact your Distributor for
Hobart Welding Products
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