Every 50 Hours Or Every Season; Every 100 Hours Or Every Season - Hayter Harrier 56 340S Owner's Handbook Manual

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EVERY 50 HOURS OR EVERY SEASON

Change engine oil.

EVERY 100 HOURS OR EVERY SEASON

Clean engine cooling system. Clean more often under dusty conditions or when airborne
debris is present or after prolonged operation whilst cutting tall, dry grass.
Service the dual element air cleaner cartridge.
Replace spark plug.
EVERY SEASON
Check valve clearance.
MAINTENANCE
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340222MT270999A