30 X7503196706
© 09/2013 ECHO Inc.
MAINTENANCE CS-450
Automatic Oiler
• The discharge volume of the automatic oiler is adjusted
to approximately 4 mL/min at 7000 r/min, prior to
shipment from factory.
• Always check oil discharge when in use.
• Turn adjusting screw (A) counterclockwise to increase
oil volume, clockwise to decrease oil volume.
• Do not turn the adjusting screw beyond the maximum or
minimum limit of volume adjustment.
Oil Filter
• Check periodically.
• Do not allow dust to enter into oil tank.
• A clogged oil filter (B) will affect the normal lubricating
system.
1. Using a wire bent into the shape of a hook, pull filter
out through gas port, and inspect filter.
2. If the filter is dirty, wash it in gasoline or replace it.
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 (A) of the guide bar with a small
screwdriver.
3. Clean oil holes (B) with a wire.
4. Invert guide bar periodically.
5. Clean the bar mount area before installing of the bar.
Sprocket
• A damaged sprocket will cause premature damage or
wear of saw chain.
• When the sprocket has worn out 0.5 mm (0.020 in.) or
more, replace it.
• Check sprocket when you install new chain. Replace it if
worn.
ADecrease Increase
B
A
A
B
Worn: 0.5 mm (0.020 in.)