Steel

Backplate

Muffler

Muffler

Bolts

Aluminum

Backplate Muffler

GasketBolt Cover Locknut

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, muffler gasket and backplates. Notice the orientation of these parts for reassembling.

5.Locate the 2 outlet cover screws on the muffler. Loosen and remove both screws. Remove the outlet cover and spark arresting screen.

BACK VIEW OF MUFFLER

Outlet Cover

Muffler

 

Screws

Spark Arresting

Screen

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 reinstalled correctly to prevent damage to the saw (see illustrations). The ex- haust 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 ADJUSTMENTS

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:

SChain moves at idle. See IDLE SPEED--T

adjusting procedure.

SSaw 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).

STurn idle speed screw (T) clockwise to in-

crease engine speed.

STurn 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/STOP switch is in the STOP position, then clean all sawdust from the guide bar and sprocket hole.

To maintain guide bar:

SMove ON/STOP switch to the STOP posi-

tion.

SLoosen and remove chain brake nuts and chain brake. Remove bar and chain from saw.

SClean 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.

SWhen rail top is uneven, use a flat file to re- store square edges and sides.

File Rail Edges

and Sides

Square

Worn Groove

Correct Groove

15

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Poulan 115358026, 966558001 instruction manual Carburetor Adjustments, Idle Speed-T, BAR Maintenance, Back View of Muffler

115358026, 966558001 specifications

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