Lincoln Electric SVM187-A service manual Engine Controls

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B-4	OPERATION		B-4
ENGINE CONTROLS		ENGINE PROTECTION SYSTEM
IGNITION SWITCH
When placed in the “ON” position, this switch ener-		The engine protection system shuts down the engine
		under high coolant temperature, low engine oil pres-
gizes the fuel solenoid. When placed in the “OFF” posi-		sure, broken belt or alternator failure conditions by
tion, the flow of fuel to the injection pump is stopped to		allowing the fuel solenoid valve to close.
shut down the engine.

AIR INTAKE SHUT-OFF

“IDLER” SWITCH

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The idler switch has two positions, “HIGH” and “AUTO”.

When in “HIGH” ( ) position, the engine will run continuously at high idle.

When in “AUTO” ( /) idle position, the idler operates as follows:

a.Welding

When the electrode touches the work, the welding arc is initiated and the engine accelerates to full speed.

After welding ceases (and no auxiliary power is being drawn), the engine will return to low idle after approximately 10 to 14 seconds.

b.Auxiliary Power

With the engine running at low idle and auxiliary power for lights or tools is drawn (approximately 100-150 watts or greater) from the receptacles, the engine will accelerate to high speed. If no power is being drawn from the receptacles ( and not weld- ing) for 10-14 seconds, the idler reduces the engine speed to low idle.

Code 10856:

This code uses an air intake shut-off device that is manually engaged and blocks all intake air from enter- ing the engine.

To shut down the engine, simply pull the emergency stop handle on the lower control panel.

This air intake shut-off device must be reset manually inside of the welder.

•Place the Ignition toggle switch in the “off” position.

•Manually turn the air intake shut-off reset handle such that the handle is in-line with the air intake hoses. The air intake shut-off is located on the top of the engine between the muffler and the air filter.

Codes 11199 and 11408:

These codes have an automatic/manual device that blocks all intake air from entering the engine.

The automatic feature of this shut-off device will engage should excessive over speeding occur. The valve is calibrated at the factory to shutdown before damage occurs to the engine or generator.

To manually shut down the engine, simply pull the emergency stop handle on the lower control panel.

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ENGINE TEMPERATURE GAUGE

Displays the coolant temperature in the engine block.

ENGINE OIL PRESSURE GAUGE

Displays the oil pressure to the engine. When the engine starts running, watch for the oil pressure to build up. If no pressure shows within 30 seconds, stop the engine and consult the engine instruction manual.

This air intake shut-off device will reset automatically, generally within one minute.

IMPORTANT: Before restarting engine, verify that the air intake shut-off is in the open position. DO NOT ATTEMPT TO START ENGINE WITH THE AIR INTAKE SHUT-OFF IN THE CLOSED POSITION.

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BATTERY CHARGING AMMETER	WARNING
Displays the current going from the charging alternator	• Muffler and Engine may be hot!
into the batteries. It is normal for charging current to be
high (above 15 amps) after starting or when the batter-
ies are ‘low’ on charge.
ENGINE HOUR METER	This may cause severe damage to the engine.

The engine hour meter records the total running time on the engine in hours. It can be used to keep a record of maintenance on the engine and or welder.

SAE-400 SEVERE DUTY