Husqvarna W448 Operation Manual - Page 27
Troubleshooting
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TROUBLESHOOTING Problem Engine will not start Unit will not move or mow with engine running Changes in the sound or vibrations of the unit Unit does not straighten immediately when the steering levers are released Erratic movement of cylinder Unit loses power Probable Cause Correction Safety Interlock System is preventing start Make sure the shift lever is in neutral, the ignition key is in the ON position, and the Power Take Off is OFF Fuel tank empty or fuel is contaminated Add fuel or replace with clean, fresh fuel Air cleaner is clogged or damaged. Clean or replace the filter element see engine manual Safety Interlock System out of adjustment or defective. See dealer for repairs Dirty or faulty spark plug See engine manual Transmission belt or mower belt is broken, worn, or off the pulleys. Check belts for wear, damage and correct position on pulleys. Replace belts if worn or damaged. See Replacing Transmission Belt Loose or missing fasteners Check all the fasteners. Tighten or replace as necessary. Mower blade problem Check blades for wear or damage. See Mower Blades Worn or damaged clutch See dealer for repairs Steering levers out of adjustment See Adjusting Steering Levers Air in hydraulic system Binding in the steering or brake linkage Steering levers out of adjustment Worn or damaged traction belts Traction belt slipping Transmission shaft pulley worn Purge air from hydraulic system Check linkage for debris or damage. Repair if necessary. See Adjusting Brakes or dealer for repairs See Adjusting Steering Levers Check belts for wear or damage. Replace if necessary. See Replacing Traction Belts Move the traction belt idler spring anchor to the rear most position. See Replacing Traction Belts Check pulley for excessive wear, replace if necessary. See your Dealer for repairs - 27 -