Hobart Welding Products
250A
manual
Troubleshooting
Specification
Parts list
Electrical Diagram
Symbol Usage
Connecting Work Clamp
Dimension
Safety
Service
Page 30
Notes
Page 29
Page 31
Image 30
Page 29
Page 31
Contents
Processes
Description
From Hobart to You
Table of Contents
Page
Plasma Arc Cutting Hazards
Symbol Usage
Marks a special safety message
Cutting can cause fire or explosion
ARC Rays can burn eyes and skin
Exploding Parts can injure
Flying Sparks can cause injury
Noise can damage hearing
California Proposition 65 Warnings
Principal Safety Standards
EMF Information
About Pacemakers
UNE Décharge Électrique peut entraîner la mort
Signification des symboles
LE Coupage présente un risque de feu ou d’explosion
Identifie un message de sécurité particulier
LES Fumées ET LES GAZ peuvent être dangereux
Risque de blessure en cas
LE Bruit peut endommager l’ouïe
LE Plasma D’ARC peut entraîner des blessures
DES Organes Mobiles peuvent provoquer des blessures
LES Bouteilles peuvent exploser si elles sont endommagées
DES Pieces Chaudes peuvent pro- voquer des brûlures graves
DES Particules Volantes peuvent blesser les yeux
Principales normes de sécurité
Information sur les champs électromagnétiques
Consignes relatives aux stimulateurs cardiaques
− Definitions
I1max
I1eff
Specifications For Torch
− Installation
Specifications For Power Source
Duty Cycle And Overheating
Selecting a Location
Torch Dimensions And Weight
Dimensions And Weight
Movement Location And Airflow
Connecting Work Clamp
Connecting Input Power
Trigger Safety Lock
− Operation
Controls
Pilot arc starts immediately when trigger is pressed
Sequence Of Operation
197 196
− Maintenance & Troubleshooting
Months
Trouble Light And Checking Shield Cup Shutdown System
Checking Torch Shield Cup Shutdown System
Torch And Work Cable Connections
Torch 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
Ring 196935 196929 197567 196926 196925 196927
Cup 196928
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Support
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Hobart Welding Products
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