54
At Least Once Each Year
Clean the engine’s cooling air intake (25 hours). q
Replace the air cleaner’s pre-lter (foam) (300 hours). q
Replace the air lter’s paper cartridge. q
Change the engine oil (50 hours). q
Replace the engine oil lter (100 hours). q
Check/adjust the cutting height. q
Check/adjust the parking brake (50 hours). q
Clean/Change the spark plugs (100 hours). q
Change the fuel lter (100 hours). q
Check the engine valve clearance. q
300-Hour Service
Perform the 25-hour service. q
Perform the 50-hour service. q
Perform the 100-hour service. q
Check/adjust the mower deck. q
Clean the combustion chamber and grind the valve seats. q
Check the engine valve clearance. q
Replace the air cleaner’s pre-lter (foam). q