TO DRAIN OIL

Drain oil while engine is warm. Follow the instructions given below.

Drain the gas tank, start the engine and let it run until the fuel line and carburetor are empty.

Remove oil fill dipstick.

Tip unit on its side to drain through the oil fill tube.

When engine is drained of all oil, refill with approximately 20 oz. of fresh oil. Refer to Gas And Oil Fill-upin OPERATION section.

Replace dipstick.

SERVICE AIR CLEANER

The air cleaner prevents damaging dirt, dust, etc., from entering the carburetor and being forced into the engine and is important to engine life and performance. The air cleaner consists of a foam filter. Never run the engine without an air cleaner completely assembled.

To Service Air Cleaner:

Remove foam filter from plastic housing on top of engine.

Wash in water and detergent solution, and squeeze (do not twist) until all dirt is removed.

Rinse thoroughly in clear water.

Wrap in a clean cloth and squeeze (do not twist) until completely dry, or allow to air dry.

Saturate with engine oil and squeeze to distribute oil and remove excess oil.

Replace foam filter in plastic housing

NOTE: If the foam filter is torn or damaged in any way, replace it.

WARNING: Temperature of muffler and nearby areas may exceed 150o F (65oC). Avoid these areas.

SERVICE SPARK PLUG

Clean the spark plug and reset the gap to.030" at least once a season or every 50 hours of operation. See Figure 13. Spark plug replacement is recommended at the start of each season. Refer to engine parts list for correct spark plug type.

NOTE: Do not sandblast spark plug. Spark plug should be cleaned by scraping or wire brushing and washing with a commercial solvent.

.030" Feeler Gauge

Spark Plug

Figure 13

SERVICE MUFFLER

Inspect muffler periodically, and replace if necessary.

If your engine is equipped with a spark arrester screen assembly, remove after every 50 hours of use for cleaning and inspection. Replace if damaged.

WARNING: Do not operate the Yard Vacuum without a muffler or tamper with the exhaust system. Damaged mufflers or spark arresters could create a fire hazard.

CLEAN ENGINE

Clean engine by removing dirt and debris with a cloth or brush.

Frequently remove grass clippings, dirt, and debris from cooling fins, air intake screen, levers, and linkage. This will help ensure adequate cooling and engine speed.

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Sears 247.77055 operating instructions To Drain OIL, Service AIR Cleaner, Service Spark Plug, Service Muffler, Clean Engine

247.77055 specifications

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