Hobart Welding Products
OM-945 194 047U
manual
Electrical Diagram
Troubleshooting
Specifications
Poor Weld Bead Characteristics
Install
Parts list
Electrical Diagram
Symbol Usage
Connecting the Battery
Main Assembly
Do not overfill battery cells
Page 41
SECTION 11 − ELECTRICAL DIAGRAM
222129−A
Figure
11-1.
Circuit Diagram For Welding Generator (Onan And
Kohler-Powered
Units)
OM-945
Page 37
Page 40
Page 42
Image 41
Page 40
Page 42
Contents
Description
Processes
From Hobart to You
Table of Contents
Table of Contents
Arc Welding Hazards
Symbol Usage
Engine Hazards
Compressed Air Hazards
California Proposition 65 Warnings
Principal Safety Standards
EMF Information
Radiation 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
DES Organes Mobiles peuvent provoquer des blessures
’EXPLOSION DE LA Batterie peut
LA Chaleur DU Moteur peut pro- voquer un incendie
’AIR Comprimé peut provoquer des blessures
Information sur les champs électromagnétiques
Principales normes de sécurité
Symbol Definitions
− Specifications
Weld, Power, and Engine Specifications
− Definitions
Do not move or operate unit where it could tip
Dimensions, Weights, and Operating Angles
Generator Power Curve
Duty Cycle
Fuel Consumption All Models
Volt-Ampere Curves
Material Thickness Reference Chart
Installing Welding Generator
− Installation
Engine Prestart Checks Kohler-Powered Units
Engine Prestart Checks Onan-Powered Units
Fuel
Oil
Do not overfill battery cells
Activating The Dry Charge Battery If Applicable
Read and follow all instruc
Charger
Installing Exhaust Pipe
Connecting the Battery
+ −
Connect negative − cable last
Selecting Weld Cable Sizes
Connecting to Weld Output Terminals
45 m 60 m 70 m 90 m 105 m 120 m
Put terminals
Amperage Selection Table For Stick Smaw Electrodes
Front Panel Controls
− Operating the Welding Generator
Ceptacles, use
− Operating Auxiliary Equipment
Standard Receptacles
Wiring Optional 240 Volt Plug
Optional Generator Power Receptacles
− Maintenance ONAN-POWERED Units
Every 1000 h
Maintenance Label Onan-Powered Units
Every 500 h
Stop engine
Servicing Air Cleaner Onan-Powered Units
Servicing Optional Spark Arrestor Onan-Powered Units
Overload Protection Onan-Powered Units
Stop engine. Disconnect nega- tive − battery cable
Stop engine and let cool
Full Tools Needed
Weld/Power Speed Adjustment
Adjusting Engine Speed Onan-Powered Units
Idle Speed Adjustment
Every 25 h
Routine Maintenance Kohler-Powered Units
Every 20 h
Replace unreadable labels
Maintenance Label Kohler-Powered Units
Servicing Air Cleaner Kohler-Powered Units
Servicing Optional Spark Arrestor Kohler-Powered Units
Overload Protection Kohler-Powered Units
802 339-B / S-0842
Stop engine. Reinstall wrapper
Adjusting Engine Speed Kohler-Powered Units
Troubleshooting
− Troubleshooting
Generator Power
Welding
Engine
− Electrical Diagram
Grounding Generator To Truck Or Trailer Frame
− Generator Power Guidelines
Selecting Equipment
How Much Power Does Equipment Require?
Grounding When Supplying Building Systems
Earth ground if supplying
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
Typical Connections To Supply Standby Power
Current Load Watts Amperes
Selecting Extension Cord Use Shortest Cord Possible
− Stick Welding Smaw Guidelines
Stick Welding Procedure
Weld current starts when electrode touches work- piece
Striking an Arc − Tapping Technique
Electrode and Amperage Selection Chart
Striking an Arc − Scratch Start Technique
Positioning Electrode Holder
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Electrode Movement During Welding
Conditions That Affect Weld Bead Shape
Tee Joint
Butt Joints
Lap Joint
Troubleshooting − Excessive Spatter
Troubleshooting − Porosity
Weld Test
Possible Causes Corrective Actions
Troubleshooting − Excessive Penetration
Troubleshooting − Incomplete Fusion
Troubleshooting − Lack Of Penetration
Troubleshooting − Distortion
Troubleshooting − Burn-Through
Troubleshooting − Waviness Of Bead
OM-945
Main Assembly Onan Engine Shown
− Parts List
Main Assembly
Panel, Front w/Components
Panel, Front w/Components -1Item
Generator -1Item
Support
Service
Hobart Welding Products
Contact your Distributor for
Related pages
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