Poulan 545123817 User Manual download pdf (Page 15)

CLEANING THE SPARK

ARRESTING SCREEN

Clean every 25 hours of operation or annually,

whichever comes first.

Muffler

Gasket

Muffler

Bolts

Muffler

Locknut

Steel

Backplate

Bolt Cover

Aluminum

Backplate

1. Loosen and remove the 3 cylinder cover

screws. Remove the cylinder cover.

2. Pull off the spark plug boot.

3. Loosen and remove the locknut from the

bolt cover. Remove the bolt cover.

4. Loosen and remove the 2 muffler bolts.

Remove the muffler and backplates. No-

tice the orientation of these parts for re-

assembling.

5. Locate the 2 outlet cover screws on the

muffler. Loosen and remove both

screws. Remove the outlet cover and

spark arresting screen.

Outlet Cover

Spark Arresting

Screen

Screws

Muffler

VIEW OF MUFF

6. Clean the spark arresting screen with a

wire brush. Replace screen if any wires

are broken or screen is blocked after

cleaning.

7. Reinstall spark arresting screen.

8. Reinstall outlet cover and 2 screws. En-

sure outlet cover and both screws are re-

installed correctly to prevent damage to

the saw (see illustrations). The exhaust

outlets must face the chain brake (bar

side) of the saw.

Outlet Cover

Exhaust Outlets

Exhaust Outlets must face

chain brake (bar side) of chain saw

9. Inspect the muffler gasket and replace if

damaged.

10. Reinstall backplates, muffler gasket and

muffler using muffler bolts. TIghten until

secure.

11. Reinstall bolt cover and locknut.

12. Reinstall the spark plug boot.

13. Reinstall the cylinder cover and 3

screws. Tighten securely .

CARBURETOR AD J UST MEN T S

WARNING: The chain will be mov-

ing during most of this procedure. Wear your

protective equipment and observe all safety

precautions. The chain must not move at idle

speed.

The carburetor has been carefully set at the

factory . Adjustments may be necessary if

you notice any of the following conditions:

S Chain moves at idle. See IDLE SPEED --T

adjusting procedure.

S Saw will not idle. See IDLE SPEED--T ad-

justing procedure.

Idle Speed--T

Allow engine to idle. If the chain moves, idle

is too fast. If the engine stalls, idle is too slow.

Adjust speed until engine runs without chain

movement (idle too fast) or stalling (idle too

slow).

S Turn idle speed screw (T) clockwise to in-

crease engine speed.

S Turn idle speed screw (T) counterclock-

wise to decrease engine speed.

If you require further assistance or are unsure

about performing this procedure, contact your

authorized service dealer or call

1--800--554--6723.

BAR MAINTENANCE

If your saw cuts to one side, has to be forced

through the cut, or been run with an improper

amount of bar lubrication it may be neces-

sary to service your bar. A worn bar will dam-

age your chain and make cutting difficult.

After each use, ensure ON/ST OP switch is

in the STOP position, then clean all sawdust

from the guide bar and sprocket hole.

To maintain guide bar:

S Move ON/STOP switch to the STOP posi-

tion.

S Loosen and remove chain brake nuts and

chain brake. Remove bar and chain from

saw.

S Clean the oil holes and bar groove after each

5 hours of operation.

Remove Sawdust From

Guide Bar Groove

Oil Holes

S Burring of guide bar rails is a normal

process of rail wear. Remove these burrs

with a flat file.

S When rail top is uneven, use a flat file to re-

store square edges and sides.

Correct GrooveWorn Groove

File Rail Edges

and Sides

Square

Replace guide bar when the groove is worn,

the guide bar is bent or cracked, or when

excess heating or burring of the rails occurs.

If replacement is necessary , use only the guide

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Poulan 545123817 User Manual Page 15

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