Lincoln Electric SVM 110-A service manual Engine Operation, Gasoline Engine Controls

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B-7 B-7

OPERATION

FIGURE B.2 – GASOLINE ENGINE CONTROLS

				6
				5
				7
			4
		3		8
			2		DC+
RANGE	90	125	1	9	DC-
	70			AC
		175		10 max
	50
			225 AC
16 to 25			210 DC

1.ENGINE CHOKE CONTROL

2.IDLER CONTROL SWITCH

3.START/STOP SWITCH

4.ENGINE HOUR METER

5.BATTERY CHARGING SYSTEM METER

WARNING

1

LINCOLN	RANGER 9
ELECTRIC

5

CHOKE

4

AUTO	START
IDLER	RUN
HIGH	STOP

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GASOLINE ENGINE CONTROLS

See Figure B.2 for the location of the following fea- tures:

1.ENGINE CHOKE CONTROL: Provides a richer air/fuel mixture for cold engine starting conditions. See the topic ENGINE OPERATION, below, for details on setting the choke.

2.IDLER CONTROL SWITCH: Adjusts the running speed of the engine. The switch has two positions, HIGH and AUTO. In HIGH, the engine runs con- tinuously at high idle. In AUTO, the idler control works as follows:

Stick Welding, “WELDING TERMINALS ALWAYS ON” mode: The engine accelerates to high speed when the electrode touches the work and strikes a welding arc. The engine returns to low idle ap- proximately 10-14 seconds after welding stops, as long as no auxiliary power is being drawn.

Wire Welding, “WELDING TERMINALS ALWAYS ON” mode: The engine accelerates to high speed when the wire feeder gun trigger or amptrol is closed. The engine returns to low idle approxi- mately 10-14 seconds after the gun trigger is released and the welding stops, provided that no auxiliary power is being drawn.

Auxiliary Power: The engine accelerates to high speed when power is drawn at the receptacles for lights or tools. The engine returns to low idle approximately 10-14 seconds after demand for auxiliary power stops.

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3.START/STOP SWITCH: Has three positions, START, RUN, and STOP. When the switch is held in the START position, the starter motor cranks over the engine – release the switch once the engine starts. The STOP position stops the engine.

NOTE: If you place the switch in the START posi- tion when the engine is running, you may damage the ring gear or starter motor.

4.ENGINE HOUR METER: Records engine running time. Use the meter to determine when to perform required maintenance.

5.BATTERY CHARGING SYSTEM METER: Shows whether the charging circuit is performing its job of charging the battery when the engine is running. The meter will register discharge during starting, but then the needle should return to a position slightly toward positive during running. The needle will hold position when the engine stops.

ENGINE OPERATION

WARNING

DO NOT RUN THE ENGINE AT EXCESSIVE SPEEDS. The maximum allowable high idle speed for the RANGER 9 is 3750 RPM, no load. Do NOT adjust the governor screw on the engine. Severe personal injury and damage to the machine can result if it is operated at speeds above the maximum rated speed.

Read and understand all safety instructions included in the Onan instruction manual that is shipped with your RANGER 9.

RANGER 9 RANGER 9