Echo CS-352 - Manual (Page 27)

27 CS-352
GUIDE BAR
• Clean before using.
• Clean the groove of the guide bar with a small screw-
driver.
• Clean oil holes with a wire.
• Reverse guide bar periodically.
• Check sprocket and the clutch and clean the bar
mount area before installation of the bar.
Replace either or both if worn.
SPROCKET
• A damaged sprocket will cause premature damage or
wear of saw chain.
• When the sprocket has worn out 0.5 mm (0.02 in.) or
more, replace it.
• Check sprocket when you install new chain. Replace it
if worn.
CYLINDER FINS
• Check periodically.
• Clogged fins will result in poor engine cooling.
• Remove dirt and dust from between fins to let cooling
air pass easily.
MUFFLER SPARK ARRESTOR
• Remove cylinder cover and remove spark plug lead.
• Remove spark arrestor screen cover and screen from
muffler body.
• Clean carbon deposits from muffler components.
• Replace screen if it is cracked, or has holes burned
through.
• Assemble components in reverse order.
NOTE
Carbon deposits in muffler will cause drop in engine
output. Spark arrestor screen must be checked
periodically.
Worn : 0.5 mm (0.02 in.)
Groove
Oil hole
Cylinder fins
Spark arrestor screen
Muffler
Screen cover
Sprocket
Oil filter
Oil tank cap
OIL FILTER
• Check periodically.
• Do not allow dust to enter into oil tank.
• A clogged oil filter will affect the normal lubricating
system.
• Pull it out through oil filling hole with a piece of steel
wire or the like.
• If the filter is dirty, wash it in gasoline or replace it.
• When the inside of the tank gets dirty, rinsing the
tank out with gasoline can clean it.