25
CS-500P
Fuel fi lter
Fuel tank cap
0.6 to 0.7 mm
Cleaner cover knob
Air fi lter
Air cleaner cover
AIR FILTER
• Check before every use.
• Close choke (
).
• Turn cleaner cover knob counterclockwise by
hand and remove air cleaner cover and air fi lter.
• Brush off dust lightly, or clean with compressed
air, or replace the air fi lter.
• Reinstall air fi lter and cover.
CHECK FUEL SYSTEM
• Check before every use.
• After refueling, make sure fuel does not leak
from around fuel pipe, fuel grommet or fuel tank
cap.
• In case of fuel leakage there is a danger of fi re.
Stop using the machine immediately and request
your dealer to inspect or replace.
SPARK PLUG
• Check
periodically.
• The standard spark gap is 0.6 to 0.7 mm.
• Correct the spark gap if it is wider or narrower
than the standard gap.
• Fastening torque: 15 to 17 N
·
m
(150 to 170 kgf
·
cm).
FUEL FILTER
• Check
periodically.
• Do not allow dust to enter fuel tank.
• A clogged fi lter will cause diffi culty in starting
engine or abnormalities in engine performance.
• Pull the fuel fi lter out through fuel inlet port with
a piece of steel wire or the like.
• When the fi lter is dirty, replace it.
• When the inside of the fuel tank is dirty, rinsing
the tank out with gasoline can clean it.
OIL FILTER
• Check
periodically.
• Do not allow dust to enter into oil tank.
• A clogged oil fi lter will affect the normal
lubricating system.
• Wash the oil tank and fi lter element with an
approved solvent.
• If damage or deterioration is noted on the oil
suction line, the saw must be removed from
service until it can be inspected by a ECHO-
trained service technician.
Spark plug
Choke control knob
