Lincoln Electric SVM194-A service manual Perkins powered models

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F-21	TROUBLESHOOTING AND REPAIR			F-21
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	Perkins powered models:
		Check that the welding cables,
idle when striking an arc. The		electrode holder, and work	The 2 CR Reed Relay, or the
automatic idle system functions		clamp are tight and in good	wiring that connect it to the
normally when using auxiliary		condition.	PC board and chassis ground
power. Weld and auxiliary		This may be normal operation	may be faulty. The Reed
power are normal when the idle		if the machine has a Wire	relay should close when
switch is in the “High Idle”		Feed Module, and is operating	sufficient current is drawn
position. The engine starts,		in CV mode. See the	from the weld output
runs, and shuts down normally.		operatorʼs manual for the Wire	terminals.
		Feed Module.	The idle/engine protection PC
			board may be faulty.
			Classic® 300G and
			Classic® 300D Kubota
			powered machines:
			The weld current sense wire
			that passes through the
			current sensor may have a
			poor electrical connection.
			These leads are not
			numbered on Classic® 300G.
			on Kubota powered
			machines; these are leads
			67A and 67B.
			Take these connections apart,
			clean them thoroughly and
			securely reconnect them.
			Check the condition of the
			crimp connections and
			replace any that are loose,
			corroded or suspect in any
			way.

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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