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OM-495 Page 15
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3-4. Symbols And Definitions
Stop Engine
Fast (Run, Weld/
Power)
Slow (Idle) Start Engine
Starting Aid Battery (Engine)
Engine Oil
Pressure
Engine Oil
Check Injectors/
Pump
Check Valve
Clearance
Fuel
Protective Earth
(Ground)
Positive Negative
Certified/Trained
Mechanic
Welding Arc
A
Amperes
V
Volts Panel/Local Remote
Engine
Air Temperature Or
Engine
Temperature
Output
Alternating
Current
Stick (SMAW)
Welding
Constant Current
(CC)
MIG (GMAW)
Welding
TIG (GTAW)
Time
h
Hours
s
Seconds
1
Single Phase
3
Three Phase
Read Operator’s
Manual
Circuit Breaker
Do Not Switch
While Welding
Electrode
Connection
Work Connection
G
Engine-Driven,
Three-Phase
Alternator With
Rectifier
Hz
Hertz
X
Duty Cycle
U
0
Rated No Load
Voltage (Average)
U
2
Conventional
Load Voltage
n
Rated Load
Speed
n
1
Rated Idle
Speed n
0
Rated No Load
Speed
I
Current
I
2
Rated Welding
Current
Contactor On