Echo CS-2511T Instruction Manual - page 29

27

CS-303T

GUIDE BAR

•  Clean before using. 

-  Clean the groove of the guide bar with a small 

screwdriver. 

-  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 the 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. 

•  Inspect the gasket, replace if damaged. 

•  Assemble components in reverse order. 

NOTICE

Carbon deposits in muffler will cause drop in 

engine output. Spark arrestor screen must be 

checked periodically. 

AUTOMATIC OILER

•  The discharge volume of the automatic oiler is 

adjusted 3 to 4 mL/min approximately at 7000  

r/min, prior to shipment from factory. 

-  To increase the delivery volume, turn the  

adjusting screw counterclockwise.  

When the screw touches stopper and stops, 

this position indicates maximum discharge 

volume.  

(approximately 12 mL/min at 7000 r/min)

-  Do not turn the adjusting screw beyond the 

maximum or minimum limit of volume  

adjustment. 

Worn : 0.5 mm (0.02 in.)

Groove

Oil hole

Cylinder fins 

Spark arrestor screen

Muffler

Screen cover

Clutch 

(Sprocket)

Decrease

Increase

Adjusting screw

Gasket