11472 | Lincoln Electric SVM194-A specs

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E-8			THEORY OF OPERATION				E-8
Classic® 300D Perkins (Codes 10545, 10546,						Classic® 300D Kubota (Codes: 11112, 11113,
10657, 10658, 10911, 10927, 11110, 11111,						11243, 11244, 11413, 11414, 11474, and 11475)
11248,	11249,	11280,	11281,	11411,	11412,	The Kubota powered Classic® 300D machines
11472, and 11473)
The Perkins powered Classic® 300D machines						utilize an electronic engine control system which
						is a part of the Kubota engine. This system main-
have a mechanical governor that maintains the						tains a steady RPM by constantly sensing engine
engine RPM when the engine is running at high						speed and making adjustments as needed.
speed. There is no operator control for RPM as
there is with 300G or 300D Kubota.						The Custom Arc Control, a potentiometer mount-
						ed on the lower right control panel, allows the
						operator to adjust the high idle engine speed
						between 1650 and 1800 RPM. This is to allow fur-
						ther adjustment of the OCV. Total OCV adjust-
						ment range is about 15 volts.

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FIGURE E.7 - CLASSIC® 300G, ZENITH FUEL SYSTEM / GM ENGINE

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ENGINE

CONTROL

COMPONENTS

AND

SENSORS

ENGINE

STARTER

MOTOR

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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion