Generator Abnormal Problems And Solutions

1. Electric starter can not start - gasoline engine

Electric start gasoline generator

Check item	Possible Causes	Elimination method
1. Check battery connection	Incorrect connection	Connect correctly
2. Check Battery	The gasoline engine does not charge the battery or the battery is insufficiently charged; the battery is not used for a long time, and the plate is vulcanized and corroded	Check or replace the rectifier bridge circuit, and then fully charge it with a special charger; replace the battery
3. Starter motor not running properly	Starter motor, start relay failure, loose wiring, start switch failure	Check and eliminate the failure of the starting electrical circuit or replace the faulty part

Lack of motivation

Phenomenon:The speed increases slowly when the accelerator is increased, and the speed drops or the flame is turned off in severe cases

Reason 1: fuel supply system

1. There is air in the oil circuit or the oil circuit is blocked;

2. the main metering hole is not adjusted properly;

3. the needle valve hole and the main metering hole in the carburetor are blocked;

4. the fuel tank switch is blocked

5. Carbon deposits in the combustion chamber;

6. clogged air filter

Related Elimination method

1. Exhaust and clear the oil circuit;

2. Readjust the main measuring hole;

3. Clean and blow through;

4. Clean and replace bad parts;

5. Remove carbon deposits;

6. Clean the filter element

Reason 2: Poor compression

1. Pistons, cylinders, and piston rings are abrasion;

2. Air leakage from the joint surface of the cylinder block and the cylinder head;

3. The valve clearance is too large ( or too small);

4. The valve seal is not tight

Related Elimination method

1. Replace wear parts

2. Replace cylinder head gasket

3. Readjust & Repair

Check item	Possible Causes	Elimination method
gasoline engine overheating	Insufficient oil	Add enough oil
	Vent clogged	Clear the exhaust
	Air hood leaks	Repair damage
	The debris in the middle of the heat sink is blocked	Clean the heat sink
	Deformation of connecting rod causes eccentric wear of piston and cylinder liner The cylinder,	Replace connecting rod
	Piston, and piston ring are worn out, causing blow-by between the cylinder and the crankcase	Replace wear parts
	Improper adjustment of gasoline engine governor, resulting in too high speed	Re-adjust the governor

Check item	Possible Causes	Elimination method
Generator voltage is too low	Gasoline engine speed is too low	Increase gasoline engine speed
	Poor contact of collector ring and carbon brush	Clean the surface of the collector ring and grind the arc surface of the carbon brush
	Abnormal brush spring pressure	Replace the spring or adjust
	The main and auxiliary windings of the stator and the excitation circuit are short-circuited	Eliminate short circuit or replace coil
	Stator main, auxiliary winding and excitation circuit wiring error	Correct wiring
	The power supply voltage and detection voltage connected to the AVR input terminal are abnormal	Detect the power supply voltage and detection voltage, and correct the wiring position
	AVR (voltage regulator) failure	Replace AVR (Voltage Regulator)

Such as Generator stator core overheating; Pneumatic difficulty or failure to start; No voltage output; Abnormal operation and sudden shutdown