Poulan 530088740 User Manual

Page 14

Muffler Diffuser

Muffler

Cover

Screws

Muffler

Cover

Muffler

Body

Spark

Arresting

Screen

Cleaning is required every 25 hours of op-

eration or annually, whichever comes first.
S

Loosen and remove the 2 muffler cover

screws.

Remove the muffler cover (cover snaps off

muffler body).

Remove muffler diffuser and spark arrest-

ing screen assembly. Notice the orienta-

tion of these parts for reassembling.

Clean the spark arrestor screen with a wire

brush. Replace screen if breaks are found.S

Replace any broken or cracked muffler

parts.

Reinstall diffuser and spark arrestor screen

assembly with round holes facing up.

Reinstall muffler cover and 2 screws (7-8

ft/lbs).

CARBURETOR ADJUSTMENTS

Your carburetor is equipped with limiter

caps. Carburetor adjustment is a compli-

cated task. We recommend that you take

your unit to an Authorized Service Dealer.

Damage will occur if you turn the needles be-

yond the limiter stops.

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:
S

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 Groove

Sprocket Hole

Oil Holes

Add lubricant to sprocket hole after each

use.

Burring of guide bar rails is a normal

process of rail wear. Remove these burrs

with a flat file.

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

store square edges and sides.

Correct Groove

Worn 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 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.
S

Loosen 3 screws on cylinder cover.S

Remove the cylinder cover.

Pull off the spark plug boot.

Remove spark plug from cylinder and dis-

card.

Replace with Champion RCJ--7Y spark

plug and tighten with a 3/4 inch socket

wrench (10-12 ft/lbs). Spark plug gap

should be 0.025 inches.

Reinstall the spark plug boot.SReinstall

the cylinder cover and 3 screws (15-20 in/

lbs).
Screws

Spark

Plug Boot

Spark

Plug

Cylinder

Cover

STORAGE

WARNING:

Stop engine and allow

to cool, and secure the unit before storing or

transporting in a vehicle. Store unit and fuel

in an area where fuel vapors cannot reach

sparks or open flames from water heaters,

electric motors or switches, furnaces, etc.

Store unit with all guards in place. Position so

that any sharp object cannot accidentally

cause injury to passersby. Store the unit out

of reach of children.

Before storing, drain all fuel from the unit.

Start engine and allow to run until it stops.

Clean the unit before storing. Pay particu-

lar attention to the air intake area, keeping

it free of debris. Use a mild detergent and

sponge to clean the plastic surfaces.

Do not store the unit or fuel in a closed area

where fuel vapors can reach sparks or an