Lincoln Electric SVM128-A service manual Figure B.3 Diesel Engine Controls

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B-7 B-7

OPERATION

FIGURE B.3 – DIESEL ENGINE CONTROLS

8		CURRENT RANGE		FINE CURRENT				5
	190-120	SELECTION		ADJUSTMENT	60	50
	240-160	130-80
					70		40
	220	90			80		30	4
7	MAX	MIN			90		20
					100		10
6	IDLER IGNITION		ENGINE		START
			PROTECTION
1. IDLER CONTROL TOGGLE					CONTROL
	230 VOLT AC		115 VOLT AC		REMOTE
SWITCH
2. IGNITION TOGGLE SWITCH

3.RESET BUTTON

4.START PUSHBUTTONS

5.ENGINE HOUR METER

6.OIL PRESSURE GAUGE

7.AMMETER

8.WATER TEMPERATURE GAUGE

1 2 3

DIESEL ENGINE CONTROLS

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See Figure B.3 for the location of the following fea- tures:

1.IDLER CONTROL TOGGLE SWITCH: Adjusts the running speed of the engine. The switch has two positions, "HIGH" and "AUTO." In "HIGH," the engine runs continuously at high idle. In "AUTO," the idler control works as follows:

Welding: The engine accelerates to high speed when the electrode touches the work and strikes a welding arc. The engine returns to low idle approx- imately 15 seconds after welding stops, as long as 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 15 seconds after demand for auxiliary power stops.

2.IGNITION CONTROL TOGGLE SWITCH: Has two positions, ON and OFF. When the switch is in the ON position, the diesel engine can be started by pressing the START pushbutton. When the switch is placed in the OFF position, the engine stops.

3.RESET BUTTON: Resets engine protection circuit. Press this button before starting the diesel engine.

4.START AND THERMOSTART PUSHBUTTONS: Press the START button to start the diesel engine. The IGNITION switch must be in the ON position. The THERMOSTART button should be used for starting when air temperature ranges between 10°F (-12°C) and freezing.

NOTE: If you press either START pushbutton when the engine is running, you may damage the engine flywheel gear or starter motor.

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

6.OIL PRESSURE GAUGE: Indicates engine oil pressure. If no oil pressure shows on the gauge within 30 seconds after startup, the engine should be stopped by placing the IGNITION switch in the OFF position.

7.AMMETER: 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 in the center when the engine stops.

8.WATER TEMPERATURE GAUGE: Indicates tem- perature of engine coolant.

SA-250