Maintenance of Lawn Mower
Change the engine oil every 25 hours, if it is used under heavy loads or at high ambient temperatures.
Clean more frequently in dusty conditions or when there is dirt in the air. Replace the filter
parts when they are very dirty.
These items should be serviced by your maintenance dealer unless you have the proper tools and are mechanically competent. Refer to the manual for the maintenance procedure. Failure to follow this maintenance schedule can lead to unjustifiable errors.