Lincoln Electric SVM204-A service manual Engine, Brush and slip ring service

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F-10	TROUBLESHOOTING AND REPAIR									F-10
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS		POSSIBLE AREAS OF			RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)			COURSE OF ACTION
		OUTPUT PROBLEMS
(Continued)					4. With the engine still running,
					check for about 70 to 80 VDC
					at the output rectifier positive
					and negative terminal. If
					voltage is not present, the
					rectifier is probably faulty.
					5. If the is voltage at the rectifier
					output, but not at the weld
					terminals, the choke may be
					open.
No 115/230 VAC auxiliary output –		1. Check	for	faulty extension	1. Check for AC voltage at the
Weld output is normal and engine		cords, tools, lights, etc. Plug in			back of the receptacles.					If
operates normally.		a known working device.			voltage is present at the back
		2. Check	for	tripped circuit	of the receptacles			but		the
					receptacles		still	will		not
		breakers.
					function,	replace				the
		3. If the Outback® has optional			receptacle.
		GFCI receptacles, try resetting			2. Check for 120 VAC from lead
		them.			#5 to leads #3 and #6 at the
		NOTE: Engine must be running at			circuit breakers. See wiring
					diagram.	If	120	VAC		is
		high idle RPM or the GFCI
					present, one or more circuit
		receptacles will not reset.
					breakers may be defective.
					3. If AC voltage is not detected in
					step 2 above, check leads
					between the test points and the
					stator winding. If the leads are
					good, the stator is likely
					defective.
Low weld and auxiliary output,		1. The output control may be set			1. Perform	the	Engine		RPM
the engine operates normally.		too low.			adjustment procedure.
		2. Engine RPM may be low.			2. The brushes and slip rings may
		3. The battery may be faulty.			be worn or faulty. Perform the
					brush and slip ring service
					procedure.
					3. Perform	the	battery		and
					charging system tests.
					4. Perform the rotor and stator
					voltage tests.

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.

OUTBACK® 185