Inspecting Muffler And Spark Arresting Screen/Cleaning The Spark Arresting Screen; Carburetor Adjustments; Bar Maintenance; Chain Sharpening/Ignition Timing/Spark Plug - Poulan Pro 2375 Instruction Manual

harmful emissions. Alwatyss clean after 15
tanks of fuel or 5 hours ofoperation, which-
ever comes first. Clean more frequently in
dusty conditions. A used aire filter can never
be completely cleaned. It is advisable to re-
place your airfilter with a new one after every
50 hoursof operation, or annually, whichever
comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cy.linpercover.
3. Remove air fitter.
4. Clean the air filter using hot soapy wster.
Rinse with clean coolwater, Air drycom-
pletely before reinstalling.
5. Lightly oil airfilter before installing to im-
prove the efficiency of air fiber, Use
2-cycle engine oilor motor o11SAE30.
Squeeze excess oil from filter.
6. Reinstall airfilter,
7. Reinstall cylinder cover and 3 screws.
Tighten securely.
r Cover
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 creafing a fire
hazard or affecting engine performance.
Replace the spark arresting screen if breaks
occur,
Muffler Diffuser
Spark
Arresting
' Screen
Muffler
Cover
Screws
Body Cover
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of op-
eration or annually, whichever comes first.
1. Loosen and remove the 2 muffler cover
screws,
2. Remove the muffler cover (cover snaps
off muffler body).
3. Remove muffler diffuser and spark ar-
resting screen assembly. Notice the
orientation of these parts for reassem-
bling.
4. Clean the spark arresting screen with a
wire brush. Replace screen if breaks are
found.
5. Replace any broken or cracked muffler
parts.
6, Reinstall diffuser and spark arresting
screen e_ssembly with round holes facing
up.
7. Reinstall muffler cover and 2 screws.
Tighten securely.
CARBURETOR ADJUSTMENTS
Your carburetor is equipped with limiter
caps. Carburetor adjustment is a compli-
cared task, We recommend that you take
our unit to an authorized service dealer.
YDamage will occur if youturn the needles be-
yond the limiter stops,
BAR MAINTENANCE
if your saw cutsto one side, has to be forced
through the cut, or been run with an improper
amount of bar lubrication it may be neces-
sary toservice your bar. A worn bar will dam-
age your chain and make cutting difficult,
h.fter each use, erasure ON/STOP switch is
in the STOP position, then clean all sawdust
from the guide bar and sprocket hole.
To maintain guide bar:
• Move ON/STOP switch to the STOP posi-
tion.
• Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.
• Clean the oil holes and bar groove after
each 5 hours of operation.
Remove Sawdust From
Guide Bar GroOVees • Q
• Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat _k_.
• When railtop is uneven, use afiet file to re-
store square edges and sides.
TL_ -_- File Rail Edges_" I I"1
and Sides I LJ ]
Square _ [
Worn Groove Correct Groove
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when
excess heating or burring ofthe rails occurs.
If replacement 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,
CHAIN SHARPENING
Chain sharpening is a complicated task that
requires special tools. We recommended
you refer chain sharpening to a professional
chain sharpener,
IGNITION TIMING
Ignition timing is fixed and nonadjustable.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better.
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