402S
MAINTENANCE
X7503256304
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© 11/23 ECHO Incorporated
1.
Pull filter out through oil port, and inspect filter.
2.
If the filter is dirty, wash it in gasoline or replace it as follows:
a.
Do not remove the wire coil clamp to remove the filter. Pinch the
filter with the fingers on one hand and the line with the other hand.
Pull and twist slightly to separate.
b.
Install the new filter with the reverse action.
3.
When the inside of the tank gets dirty, rinse the tank out with gasoline to
clean it.
Guide Bar
1.
Clean before using.
2.
Clean the groove of the guide bar
(A) with a small screwdriver.
3.
Clean oil holes (B) with a wire.
4.
Invert guide bar periodically.
5.
Clean the guide bar mount area
before installing the guide bar.
Sprocket
• A damaged sprocket will cause
premature damage or wear of saw
chain.
• When the sprocket has worn
0.020 in. (0.5 mm) or more, replace
it.
• Check sprocket when you install
new chain. Replace it if worn.
Some tree sap and resins are corrosive. Thoroughly wash the guide
bar and sprocket areas after each use, then coat metal parts with light
oil.
A
B
5.0 mm (0.20 in.)
