Echo PB-410, X750-006, X750109-290 Spark Arrestor Screen, Cylinder Exhaust Port, EXHAUST SYSTEM, NOTE, Level, Level, IMPORTANT, IMPORTANT, •Check periodically, Cleaning Cylinder Fins

POWER BLOWER

OPERATOR’S MANUAL 19

Cleaning Cylinder Fins•Check periodically.-Clogged fins result in poor engine cooling.

-Clean the passage of air between the cylinder fins to let cooling air pass easily.

Cylinder fins

EXHAUST SYSTEM

Spark Arrestor Screen

Level 2.

IMPORTANT

Carbon deposits in muffler will cause a drop in engine output and overheating. Spark arrestor screen must be checked periodically.

1.Remove spark arrestor cover, gaskets and spark arrestor screen from muffler. Replace screen if plugged with carbon deposits.

NOTE

When cleaning carbon deposit, be careful not to damage the catalytic body.2.Install spark arrestor screen, gaskets, and cover.3.Tighten all screws securely.

Cylinder Exhaust Port

Level 3.

IMPORTANT

The cylinder exhaust port must be inspected and cleaned of excess carbon every 3 months or 90 hours of operation in order to maintain this engine within the emissions durability period. ECHO strongly recommends that you return your unit to your ECHO dealer for this important maintenance service.

•In the event that the engine should lose power and overheat, the muffler should be removed and checked for excessive deposits.

•Carbon build up in the exhaust port should be removed with a piece of wood, ensuring that particles of carbon are not allowed to enter the cylinder.

•Remove all carbon deposits from the muffler flange area and wash the complete unit in a suitable solvent.

Spark arrestor screen

Gaskets

Spark arrestor cover