Lincoln Electric 300 D manual Engine Troubleshooting, Causes, What To Do

E-5			TROUBLESHOOTING		E-5
			ENGINE TROUBLESHOOTING
		TROUBLE	CAUSES	WHAT TO DO
1.	Engine does not start		Faulty Ignition switch and or Injector pump solenoid	Correct the connection and contact.
			Insufficient charging or complete discharge of the battery	Charge.
			Lack of fuel	Supply fuel.
			Air mixed in the fuel system	Bleed air (To be done by qualified personnel only)
			Clogged fuel filter	Replace.
			Irregular and faulty fuel supply (Injector pump trouble)	Repair in an authorized service shop.
			Glow plug not heated	Breakage of the glow plug; replace.
			Improper viscosity of the lubricating oil	Inspect and replace.
			Clogged air cleaner	Clean or replace.
			No compression	Repair in a service shop.
			Engine protection light is ON	60 second start period elapsed, Turn ignition switch
				OFF & ON - See #4 Below.
2.	Irregular running of the engine		Air mixed in the fuel system	Bleed air (To be done by qualified personnel only)
			Uneven fuel injection (Faulty fuel injector pump)	Repair in an authorized service shop.
			Clogged fuel filter	Replace.
			Defective governor	Check and correct.
			Engine itself defective	Repair in an authorized service shop.
3.	Engine stops during operation		Lack of fuel in the fuel tank	Supply fuel and bleed air (To be done by qualified personnel only)
	and the Engine Protection light		Clogged fuel filter	Replace.
	does not turn on.		Air mixed in the fuel system	Bleed air (To be done by qualified personnel only)
			Faulty function of the engine	Repair in a service shop.
4.	Engine stops during operation		a. Overheat of the Engine
	and the Engine Protection light		Lack of Coolant	Supply coolant. Inspect leakage and correct.
	does turn on.		Loose or slipping fan belt	Remove oil, dust, etc. and tighten.
			Damaged fan belt	Replace.
			Clogged radiator	Flush the radiator.
			Clogged radiator fin	Clean.
			Dust or scale clogged in the cooling water passage	Flush the system.
			Faulty function of the thermostat	Inspect or replace thermostat.
			Lack of lubricating oil.	Add oil.
			Overloading	Decrease the load.
			Faulty Idler/Engine Protection P.C. Board	Replace.
			b. Loss of Engine Oil Pressure
			Lack of engine oil	Supply oil up to the specified level.
			Fault in the Oil Pressure Switch	Replace the switch.
			Oil leakage from the lubricating system	Inspect and retighten.
			Clogged oil filter	Replace with new one.
			Oil too light	Drain and refill with proper grade.
			Faulty Idler/Engine Protection P.C. Board	Replace.
5.	White or Blue Smoke		Excess engine oil	Inspect and correct the level.
			Too low viscosity of the engine oil	Inspect and replace the oil with proper grade.
			Faulty injection timing	Repair in a service shop.
6.	Dark Grey Smoke		Unsuitable fuel	Inspect and replace with correct grade.
			Excess injection	Inspect and adjust (in a service shop).
			Faulty function of the engine	Repair in a service shop.
			Overloading	Reduce the load.
			Clogged air cleaner	Clean.
7.	Faulty Charging		Loose fan belt	Correct the tension.
			Faulty wiring	Inspect and correct.
			Faulty battery	Repair.
			Worn out alternator brush	Replace.
8.	Starter Motor does not run		Loose or damaged wiring	Inspect and tighten.
			Drained voltage from battery	Charge the battery.
			Damaged starter motor (including solenoid)	Repair in a service shop.
9.	Engine Protection Light not		Broken Light Bulb	Replace the bulb.
	coming on (after the ignition		Faulty light wiring (to GND or P.C. Board)	Correct.
	switch has been in the ON		Faulty Idler/Engine Protection P.C. Board	Replace.
	position for more than 60
	seconds with the engine
	not started).

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

CLASSIC 300D