Echo 2CS-450 Manuel D’Utilisation

30

CS-450

These angles are referred to as Oregon 20BPX, 

33SL, or 95VP.  

To sharpen other follow chain manufacturer’s 

instruction.

•  Place the depth gauge tool firmly on guide 

bar so that depth gauge protrudes.    

Then file top of depth gauge with the flat file until 

flat with top of the depth gauge tool. 

-  Be sure to round off the front edge of the 

depth gauge.

Properly filed cutters are shown in illustration. 

When setting of the chain is finished, soak it in oil 

and wash away filings completely before using. 

- When chain has been filed on the bar, supply 

sufficient oil to it, rotate the chain slowly to wash 

away the filings before using again. 

- If the chain saw is operated with filings clogged 

in the groove, the saw chain and the guide bar 

will be damaged prematurely. 

- If the saw chain becomes soiled with resin, for 

instance, clean it with kerosene and soak in it 

oil.

Parallel

0.64 mm (0.025 in.)

Top plate cutting angle

Depth gauge

Remove until  

flat with tool

Depth gauge tool

Round off 

the edge

1/5

One fifth of file diameter remains 

above cutter edge

Top plate filing angle

20BPX :55°

33SL, 95VP :60°

 

33SL  : 25°

20BPX, 95VP : 30°