MAINTENANCE

COOLING SYSTEM (See Fig. 15)

Your engine is air cooled. For proper engine performance and long life keep your engine clean.

Remove blower housing and clean as necessary.

Keep cylinder fins free of dirt and chaff.

BLOWER HOUSING

COOLING

FINS

MUFFLER

Fig. 15

MUFFLER

Do not operate tiller without muffler. Do not tamper with exhaust system. Damaged mufflers or spark arresters could create a fire hazard. Inspect periodically and replace if necessary. If your engine is equipped with a spark arrester screen assembly, remove every 50 hours for cleaning and inspection. Replace if damaged.

SPARK PLUG

Replace spark plugs at the beginning of each tilling season. Spark plug type and gap setting are shown in “PRODUCT SPECIFICATIONS” on page 3 of this manual.

TRANSMISSION

Your transmission is sealed and will not require lubrication unless serviced.

CLEANING

Do not clean your tiller when the engine and transmission are hot. We do not recommend using pressurized water (garden hose, etc.) to clean your unit unless the gasket area around the transmission and the engine muffler, air filter and carburetor are covered to keep water out. Water in engine will shorten the useful life of your tiller.

Clean engine, wheels, finish, etc. of all foreign matter.

Keep finished surfaces and wheels free of all gasoline, oil, etc.

Protect painted surfaces with automotive type wax.

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McCulloch 433691, MC550, 96083000300 manual Cleaning, Cooling System See Fig, Muffler, Spark Plug, Transmission

96083000300, MC550, 433691 specifications

The McCulloch 433691, also known as the MC550, is a versatile and robust chainsaw designed for both homeowners and professionals seeking efficiency and reliability in their tools. Packed with advanced features and cutting-edge technologies, the MC550 stands out in a competitive market.

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