Husqvarna ProFlex 21 manual English-72

TROUBLE SHOOTING

Problem	Cause
Engine overheating	•	Engine overloaded
	• Air intake or cooling fins clogged
	•	Damaged fan
	• Too little or no oil in the engine
	• Faulty pre-ignition
	•	Faulty spark plugs
Battery does not charge	•	One or more battery cells faulty
	• Poor contact on the battery terminal cable connectors
	• Faulty generator or regulator
	• Insufficient battery maintenance
The Rider vibrates	•	The blades are loose
	• The engine is loose
	• Pulley loose or bearing worn
	• One or more blades is imbalanced, caused by damage
		or poor balancing after sharpening
Uneven cutting result	•	Blades blunt
	• Cutting unit set incorrectly
	• Long or wet grass
	• Grass build-up under the cover
	• Different air pressure in the right and left tyres
	• Driving speed too high
	• Engine speed too low
	•	Drive belt slips

English-72