Husqvarna S427 Operation Manual - Page 21

TROUBLESHOOTING Problem Engine will not start Probable Cause Correction Engine switch in OFF position Move switch to ON position Fuel shut-off valve in Off position Fuel tank empty Spark plug disconnected Move valve to ON position Fill fuel tank with fuel Connect spark plug Faulty spark plug Replace spark plug Choke lever in wrong position Adjust choke lever position Engine overheats Faulty engine Debris accumulated on engine and cooling fins See your Husqvarna dealer Clean debris from engine and cooling fins Cylinder does not extend or retract when control lever is moved Low hydraulic oil level Refill hydraulic oil to proper level Kinked or pinched hydraulic lines Hydraulic drive coupling broken Repair or replace damaged hydraulic lines Replace hydraulic drive coupling Faulty hydraulic pump See your Husqvarna dealer Faulty control valve Excessive vibration or noise Worn or damaged drive from hydraulic drive coupling coupling See your Husqvarna dealer Replace hydraulic drive coupling Erratic movement of cylinder Air in hydraulic system Purge air from hydraulic system Control lever sticks Debris in control lever linkage Clean and lubricate linkage Dented rear cap on control lever valve assembly See your Husqvarna dealer - 21 -