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Hobart Manuals
Welding System
AirForce 250A
Owner's manual
Section 3 − Definitions; Symbols And Definitions For Nameplate And Serial Number/Rating Label - Hobart AirForce 250A Owner's Manual
Air plasma cutter and ice-12c torch
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Troubleshooting
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3-1. Symbols And Definitions For Nameplate And Serial Number/Rating Label
A
Amperes
V
Volts
Protective Earth
(Ground)
On
U
Rated No Load
0
Voltage (Average)
I
Rated Maximum
1max
Supply Current
IP
Degree Of
Protection
I
Maximum Effective
1eff
Supply Current
SECTION 3 − DEFINITIONS
Plasma Arc Cutting
(PAC)
Increase
Single Phase
Off
U
Primary Voltage
1
I
Rated Welding
Current
2
Loose Shield Cup
pf
power factor
Adjust Air/Gas
Pressure
No − Do Not Do
This
Constant Current
Percent
U
Conventional Load
Voltage
2
X
Duty Cycle
Input
Suitable for Some
S
Hazardous
Locations
Low Air Pressure
Light
Temperature
Voltage Input
Direct Current
Line Connection
Single Phase
Static Frequency
1
f1
Transformer-
f2
Rectifier-Converter
Hz
Hertz
S
Power Rating,
Product Of Voltage
1
And Current (KVA)
OM-928 Page 9
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Specifications for Power Source
Specifications for Torch
Controls
Routine Maintenance
Trouble Light and Checking Shield Cup...
Checking/Replacing Retaining Cup, Tip, and Electrode
Troubleshooting Torch
Section 8 − Parts List
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Table of Contents
Troubleshooting
SECTION 6 − MAINTENANCE & TROUBLESHOOTING
19
Troubleshooting Power Source
23
Troubleshooting Torch
24
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