Theory of operation, General description, Gasoline engine – Lincoln Electric CLASSIC SVM194-A Manuel d'utilisation
Page 112
THEORY OF OPERATION
E-2
E-2
CLASSIC® 300D & 300G
GENERAL DESCRIPTION
The Classic® 300 welding machines are heavy duty,
engine driven DC arc welding power sources capable
of providing constant current output for stick welding or
DC TIG welding. Also, a total of 3000 watts of auxiliary
power is available at the 115 or 230VAC receptacles.
The Classic® 300 is manufactured with all copper
windings.
FIGURE E.1 - GENERAL DESCRIPTION (Classic® 300G, Zenith Fuel System/GM Engine)
NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion
+
-
ZENITH
E.C.U.
BATTERY
STARTER
MOTOR
START
AMMETER
IGNITION
SWITCH
ENGINE
ALTERNATOR
ENGINE FAILURE LAMP
HOUR METER
FUEL PUMP
IDLE
SWITCH
ENGINE
RPM CONTROL
GASOLINE
ENGINE
ENGINE
CONTROL
COMPONENTS
AND
SENSORS
NEGATIVE
OUTPUT
TERMINAL
POSITIVE
OUTPUT
TERMINAL
CURRENT
SENSOR
P.C. BOARD
115 & 230VAC
RECEPTACLES
SELECTOR
SWITCH
GENERATOR
FRAME
ALTERNATOR STATOR
ROTATOR
FIELD
RECTIFIER
GENERATOR
FIELD CONTROL
RHEOSTAT
FLASHING
SLIP
RINGS
ARMATURE
SHAFT
SERIES
COILS
FIELD
SHUNT
WINDINGS
RESIDUAL
MAGNETISM
INTERPOLE
COILS
GENERATOR
ARMATURE
MECHANICAL
COUPLING
B
R
U
S
H
E
S
&
C
O
M
M
U
TA
TO
R
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