Operation - Poulan Pro SM4218 AV Instruction Manual

• Clean the oil holes and bar groove after
each 5 hours of operation.
• Burring of guide bar rails is a normal
process of rail wear Remove these burrs
with a fiat _e
• When rail top is uneven, use a fiat file to re-
store square edges and sides
_ File Rail Edges _ _J]
and Sides
Square
Worn Groove Correct Groove
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when ex-
cess heating or burring of the rails occurs. If re-
placement is necessary, use only the guide bar
specified for your saw in the repair parts list or
on the decal located on the chain saw.
CHECK FUEL MIXTURE LEVEL
• See FUELING ENGINE under the OP-
ERATION section
LUBRICATION
cleaned. It is advisable to replace your air fil-
ter with a new one after every 50 hours of op-
eration, or annually, whichever comes first
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover
3. Remove air filter cover and air filter.
4. Clean the air filter using hot soapy water
Rinse with clean cool water. Air dry com-
pletely before reinetaliing.
5 Reinstall air filter and air filter cover.
6 Reinstall cylinder cover and 3 screws
Tighten securely.
Cylinder
Air Filter Cover
Cover
Bar Oil
Fill Cap
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used carbon deposits build up
on the muffler and spark
arresting screen,
and must be removed to avoid creating a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
OCCUr
• See GUIDE BAR AND CHAIN OiL under
the OPERATION section.
INSPECT AND CLEAN UNIT AND
DECALS
• After each use_ _nspect complete unit for
loose or damaged parts. Clean the unit and
decals using a damp ctoth with a mild deter-
gent.
• Wipe off unit with a clean dry cloth.
CHECK CHAIN BRAKE
See CHAIN BRAKE in the OPERATION
section
CLEAN AIR FILTER
CAUTION: Do not clean filter in gasoline or
other flammable soivent to avoid creating a
fire hazard or producing harmful evaporative
emissions
Cleaning the air filter:
A dirty air filter dec reases the Iife and perfor-
mance of the engine and increases fuel con-
sumption and harmfuI emissions. Always
clean your air filter after 10 tanks of fuel or 5
hours of operation, whichever comes first
Clean more frequently in dusty conditions A
used air filter can never be completely
CLEANING THE SPARK ARREST-
ING SCREEN
Cteaning is required every 25 hours of op-
eration or annually, whichever comes first
1. Loosen and remove the nut from the ex-
haust outlet cover.
2. Remove the exhaust oulet cover.
3. Remove spark arresting screen Handle
screen carefully to prevent damage.
4. Clean the spark arresting screen gently
with a wire brush Replace screen if
breaks are found.
5. Replace any broken or cracked muffler
parts.
6 Reinstall spark arresting screen exhaust
outlet cover, and nut. Tighten nut securely
15