Lincoln Electric IM644-A manual Controls and Settings, RUN- Stop Switch, Start Pushbutton

B-3 OPERATION B-3

CONTROLS AND SETTINGS

All welder and engine controls are located on the case front panel. Refer to Figure B.1 and the explanations that follow.

Figure B.1 Case Front Panel Controls

	9		10			9
1	2	3	4	5	6	7	8
			OIL	OIL		00000 0
						HOURS
		FUEL	TEMP	PRESS	AMPS

24

13

18 15 16 25 21 22 11 12 19

17	23
	14

ENGINE CONTROLS (Items 1 through 8)

1. RUN- STOP SWITCH

When placed in the “RUN” position, this switch ener- gizes the fuel solenoid and other electric accessories. When placed in the “STOP” position, the flow of fuel to the injection pump is stopped to shut down the engine. (Note: If the switch is left in the "RUN" position and the engine is not running, the fuel solenoid will be engaged for 15 seconds and then shut down. This is to protect the battery from discharge. After 15 seconds, the Run

/Stop switch must be toggled off then on before start- ing.)

2. START PUSHBUTTON

Energizes the starter motor to crank the engine. With the engine "Run / Stop" switch in the "Run" position, push and hold the Start button to crank the engine; release as the engine starts. Start button must be depressed for a minimum of two seconds. Do not press while engine is running since this can cause damage to the ring gear and/or starter motor.

3. FUEL LEVEL GAUGE AND LIGHT

(K1639-2 only) - Displays the level of diesel fuel in the 25-gallon fuel tank. The

yellow light turns on when the fuel gage reaches the reserve level. Once the reserve level is reached, the engine protection system will shut down the engine after 30 minutes of operation. The machine can be restarted and operated for an additional 30 minutes before the protection system will shut down the engine. This ability to override the engine protection is to allow the operator to “finish up” if necessary. The operator must watch the fuel level closely to prevent running out of fuel and having to bleed the system.

COMMANDER 500