Lincoln Electric SVM194-A service manual Troubleshooting and Repair

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F-22	TROUBLESHOOTING AND REPAIR			F-22
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)	COURSE OF ACTION
The engine will not go to high		FUNCTION PROBLEMS	The Toroidal Current
		The load applied to the
idle when using auxiliary power.		auxiliary receptacles may be	Transformer or the wiring
The automatic idle system		too low. A load of 150 Watts	connecting it to the
functions normally when welding.		minimum is required for the	idler/engine protection PC
Weld and auxiliary power is		idle system to operate reliably.	board may be faulty.
normal when the idle switch is in		Check that any power cords	The idler/engine protection
the “High Idle” position. The
engine starts, runs, and shuts		are in good condition and	PC board may be faulty.
down normally.		properly connected.
		Verify that any devices
		operating from the auxiliary AC
		power are operating correctly
		and are in good condition. Try
		plugging the device into
		another source of AC power to
		be sure it is functioning
		properly.
		Some devices may test the
		input power for correct voltage
		and frequency before they will
		operate. If such a device is
		being used, the idle switch will
		need to be placed in the “High”
		position. The current drawn by
		many of these devices, when
		testing the power, is too low to
		reliably activate the automatic
		idle system.

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CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877.

CLASSIC® 300D & 300G