Lincoln Electric SVM153-A service manual Shutdown

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F-10							F-10
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines			TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS	POSSIBLE AREAS OF		RECOMMENDED
(SYMPTOMS)	MISADJUSTMENT(S)		COURSE OF ACTION
		ENGINE PROBLEMS
The engine shuts down shortly	1.	Check for adequate fuel supply.	1.	Check the RUN/STOP switch
after starting.	2.	If any indicator light is lit when		and associated leads for loose
				or faulty connections.
		the engine shuts down, that par-
		ticular system has faulted.	2.	Perform	the		Shutdown
		Check system.		Solenoid Test.
	3. Check the battery cables for		3.	The Peripheral PC board may
		loose or faulty connections.		be faulty.	With the RUN/STOP
				switch in the "RUN" position, the
				Peripheral PC board should nor-
				mally supply 10VDC to the shut-
				down solenoid via leads #224
				and #262. See the Wiring
				Diagram.
			4.	See the Engine Starting Diag-
				nostic Chart.
The engine will not idle down to low	1.	Make sure the IDLER switch is	1.	Perform	the	Idler	Solenoid
speed. The machine has normal		in the "AUTO" position.		Test.
weld output and auxiliary power.	2. Make sure there is NOT an		2.	Check leads		#227, #232L,
		external load on the weld termi-		#232M and #226A for loose or
		nals nor the auxiliary power		faulty connections.			See the
		receptacles.		Wiring Diagram.
	3. Check for mechanical restric-		3.	The Pull Coil PC board may be
		tions in the solenoid linkage.		faulty.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-800-833-9353.

COMMANDER 500