Poulan PRO 305 - Manual (Page 20)

E. AIR FILTER
• A dirty air filter:
— reduces cutting power.
— increases fuel consumption.
• Clean the air filter as follows:
— check filter after eveiy 10 tanks of fuel or 5
hours of operation, whichever is less.
— more frequently in very dusty conditions.
1. Clean off carburetor cover and the area around it.
2. Pull the choke to the full position to prevent dirt
from entering the carburetor.
3. Remove the carburetor cover. Figure 42,
4. Carefully remove the air filter.
5. Remove the single air filter screw and separate the
two halves.
I CAUTfQ£jlJ
Do not úse gasoline or other flam­
mable liquid to clean the filter to avoid
creating a fire hazard.
6. Wash the filter in soap and water.
7. Brush away all dust and debris from the filter.
8. Allow the filter to diy.
9. Reassemble the filter.
10. Brush away all dpt and debris from the surfaces bn
vdiich the filter is to be placed.
11. Reinstall the filter and carburetor coven
1 CAyUQSbJ To avoid damage to the eng^e, do
not operate the unit without the air mter in
place.
Figure 42
F. CLUTCH AND DRUM/SPROCKET
A WARNING
Do not start the engine without the guide bar,
chain, and bar clamp housing comjmetely as­
sembled. The clutch can come ofl without the
guide bar and chain completely assembled, and
serious ipjury can result. The clutch shoes and
drum can separate causing the clutch to violent-
ly fly apart and serious iigury can result.
Take the saw to your Authorized Service
Dealer for full clutch inspection and service
after each 100 hours of operation. Itis remm-
mended that you do not tr^sy to service the clutch or
drum!^rocket yourself unless you are a competent
small engine mechanic and have the proper clutch
Service tools.
Proper disassembly and repair of the
clutch is extremely important to the life of the en­
gine and the safety of the operator.
Inspect the sprocket regularly for wear. A
worn sprocket will make the chain rim erratically
and will shorten the life of the bar and chain. Fig­
ure 43.
Clutch maintenance is required when:
— the chain continues to turn while the engine
idles after the idle speed screw has been
adjusted to its capacity.
— slippage ocisurs during a cut
— a chattering noise occurs during cutting.
Clean the clutch, drum, sprocket^ and sur­
rounding area daily during heavy use of the
saw. Check to see that the clutch drum turns freely
and smoothly.
.^ways have a worn sprocket replaced by
your Authorized Service Dealer whenever a
new chain is installed to gain the full life expec­
tancy of the chain.
Figure 43
G. STORAGE
When your saw is to be stored for over 80 days.
1, Drain fuel tank in a safe manner. See “Fueling Your
Engine—Fuel Safety.'’
2. Start engine and allow to run at idle speed until the
engine stops.
NOTE; Running the eni;ine until it stops will re­
move most of the fuel from the fuel system,
NOTE; It is important to prevent gum deposits
from formingin essential fuel systems parts such as
the earburetorj fuel filter, fuel nosei or tank during
storage. Alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract moisture
which leads to separation and formation of acids
during storage. Acidic gas can damage the fuel sys­
tem of an engine while in storage.
3; Drain oil from oil tank;
-20-
rCAVTOlMlJ Wear protective gloves when han-
diing the chain. The chain is sharp and can
cut you even yt^en it is not moving:
4, Remove, clean, and dty the bar and chain.
5, Store the chain in a container filled with oil to pre­
vent rust.
6, Apply a coating of oil to the en^tire surface of thenar
; and wrap it in heavy paper, cloth, or plastic*
7* Clean the outside surfaces of the engine,
8. Store the saw in a diy place, out of the reach bf chil­
dren, and away from where fuel vapors can rbäch
open flames from hot water heaters, furnaces, etc.