background image

17

Rounded

Corner

0.025 inch

(0.65 mm)

Right

Hook Angle

Wrong

Squared Off

Corner

Too Much Hook Angle

WARNING:

Maintain the proper

hook angle according to the manufacturer’s

specifications for the chain you are using. Im-

proper hook angle will increase the chance of

kickback which can result in serious injury.

4. Check and lower depth gauges.

Depth Gauge Tool

Depth Gauge

File

S

Place gauge tool on cutter.

S

If the depth gauge is higher than the

depth gauge tool, file it level to the top of

the depth gauge tool.

S

Maintain rounded front corner of

depth gauge with a flat file.

NOTE:

The very top of the depth

gauge should be flat with the front

half rounded off with a flat file.

If you require further assistance or are unsure

about performing this procedure, contact your

authorized service dealer or call our customer

assistance help line at 1--800--554--6723.

CARBURETOR ADJUSTMENT

WARNING:

The chain will be moving

during most of this procedure. Wear your pro-

tective equipment and observe all safety pre-

cautions. 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. Ad-

just speed until engine runs without chain

movement (idle too fast) or stalling (idle too

slow). The idle speed screw is located in the

area above the primer bulb and is labeled T.

S

Turn idle screw (T) clockwise to increase

engine speed.

S

Turn idle screw (T) counterclockwise to

decrease engine speed.

If you require further assistance or are unsure

about performing this procedure, contact your

authorized service dealer or call our customer

assistance help line at 1--800--554--6723.

COOLING SYSTEM

To keep the working temperature as low as

possible the machine is equipped with a

cooling system.

The cooling system consists of:

S

Air intake on the starter

S

Air guide plate

S

Fins on the flywheel

S

Cooling fins on the cylinder

S

Cylinder cover (directs cold air over the

cylinder)

Clean the cooling system with a brush after

each use, more often in demanding condi-

tions. A dirty or blocked cooling system re-

sults in the machine overheating which

causes damage to the piston and cylinder.

STORAGE

WARNING:

Perform the following

steps after each use:

S

Allow the engine to cool, and secure the

unit before storing or transporting.

S

Store chain saw and fuel in a well venti-

lated area where fuel vapors cannot reach

sparks or open flames from water heaters,

electric motors or switches, furnaces, etc.

S

Store chain saw with all guards in place

and position chain saw so that any sharp

object cannot accidentally cause injury.

S

Store chain saw well out of the reach of

children.

SEASONAL STORAGE

Prepare your unit for storage at the end of the

season or if it will not be used for 30 days or

more. If your chain saw is to be stored for a

period of time:

S

Clean saw thoroughly before storage.

S

Store in a clean dry area.

S

Lightly oil external metal surfaces and

guide bar.

S

Oil the chain and wrap it in heavy paper or

cloth.

FUEL SYSTEM

Under FUELING ENGINE in the OPERA-

TION section of this manual, see message

labeled

IMPORTANT

regarding the use of

gasohol in your chain saw. Fuel stabilizer is

an acceptable alternative in minimizing the

formation of fuel gum deposits during stor-

age. Add stabilizer to the gasoline in the fuel

tank or fuel storage container. Follow the mix

instructions found on stabilizer containers.

Run engine at least 5 minutes after adding

stabilizer. Poulan/WEED EATER 40:1,

2-cycle engine oil (air cooled) is blended with

fuel stabilizer. If you do not use this oil, you

can add a fuel stabilizer to your fuel tank.

Summary of Contents for 545186805

Page 1: ...ucciones y siga todas las advertencias e en strucciones de seguridad El no hacerlo puede resultar en lesiones graves AVERTISSEMENT Lire le manuel d instructions et bien respecter tous les avertisse ments et toutes les instructions de sécurité Tout défaut de le faire pourrait entraîner des blessures graves Poulan PRO 850 Matheson Blvd West Mississauga Ontario L5V 0B4 R Please do not return unit to ...

Page 2: ...SAFETY RULES WARNING Always disconnect spark plug wire and place wire where it can not contact spark plug to prevent accidental starting when setting up transporting ad justing or making repairs except carburetor adjustments Because a chain saw is a high speed wood cutting tool special safety precautions must be observed to reduce the risk of accidents Careless or improper use of this tool can cau...

Page 3: ...ice dealer with the exception of the items listed in the maintenance sec tionofthis manual Forexample ifimprop er tools are used to remove or hold the fly wheelwhen servicingthe clutch structural damage to the flywheel can occur and cause the flywheel to burst S Make certain the saw chain stops moving when the throttle trigger is released For correction refer to CARBURETOR AD JUSTMENT S Never modi...

Page 4: ...aw chain sharp and properly tensioned A loose or dull chain can in crease the chance of kickback occurring Follow manufacturer s chain sharpening and maintenance instructions Check ten sion at regular intervals with the engine stopped never with the engine running Make sure the bar nuts are securely tight ened after tensioning the chain S Begin and continue cutting at full speed If the chain is mo...

Page 5: ...be caused by allowing contact of the bar tip in the danger zone with any hard object Kickback can also be caused by pinching the saw chain along the top of the guide bar This action may push the guide bar rapidly back toward the op erator Either of these events may cause you to lose control of the saw which could result in serious injury or even death DO NOT RELY UPON ANY OF THE DEVICES BUILT INTO...

Page 6: ...f California Idaho Maine Minnesota New Jersey Oregon and Washington require by law that many internal combustion engines to be equipped with a spark arresting screen If you operate a chain saw in a state or locale where such regulations exist you are legally responsible for maintaining the operating condition of these parts Failure to do so is a violation of the law Refer to the SERVICE section fo...

Page 7: ...Attempting to tension the chain when the bar nuts are tight can cause damage Checking the tension Use the screwdriver end of the chain adjust ment tool bar tool to move chain around guide bar If the chain does not rotate it is too tight Ifthe chainis tooloose itwill sagbelow the bar Bar Nuts Chain Adjustment Tool Bar Tool Guide Bar Adjusting the tension Chain tension is very important Chains stret...

Page 8: ... Bar Nuts Cylinder Cover Throttle Lockout Rear Handle Throttle Trigger Chain Brake Chain Direction of Travel Adjusting Screw Chain Catcher Clutch Cover ON STOP SWITCH The ON STOP SWITCH is used to stop the engine THROTTLE TRIGGER The THROTTLE TRIGGER controls engine speed THROTTLE LOCK OUT The THROTTLE LOCK OUT must be pressed before you can squeeze the throttle trigger This feature prevents you f...

Page 9: ...are NOT classified as gasoline and are NOT approved for use in 2 stroke gasoline engines Use ofal ternativefuels willcause problems such as im proper clutch engagements overheating va por lock power loss lubrication deficiency deterioration of fuel lines gaskets and internal carburetor components etc Alternative fuels cause high moisture absorption into the fuel oil mixture leading to oil and fuel...

Page 10: ...ast idle pull the choke fast idle lever out to the full extent to the full choke position then push the lever back in to the HALF CHOKE position 4 Pull the starter rope sharply with your right hand until the engine starts 5 Squeeze and release throttle trigger to allow engine to return to idle speed DIFFICULT STARTING or starting a flooded engine The engine may be flooded with too much fuel if it ...

Page 11: ... the bar chain oren gine can result S Release the throttle trigger as soon as the cut is completed allowing the en gine to idle If you run the saw at full throttle without a cutting load unneces sary wear can occur to the chain bar and engine It is recommended that the engine not be operated for lon ger than 30 seconds at full throttle S Toavoidlosingcontrolwhencut is com plete donotputpressureons...

Page 12: ...G A FALLEN TREE BUCKING Bucking is the term used for cutting a fallen tree to the desired log size WARNING Do not stand on the log being cut Any portion can roll causing loss of footing and control Do not stand downhill of the log being cut IMPORTANT POINTS S Cut only one log at a time S Cut shattered wood very carefully sharp pieces of wood could be flung toward opera tor S Use a sawhorse to cut ...

Page 13: ...ionwhich cancause you to lose your balance or control of the saw IMPORTANT POINTS S Work slowly keeping both hands firmly gripped on the saw Maintain secure footing and balance S Watch out for springpoles Springpoles are small size limbs which can catch the saw chain and whiptoward youor pullyou offbal ance Use extreme caution when cutting small size limbs or slender material S Be alert for spring...

Page 14: ...ver items that have been subjected to operator abuse or negligence To receive full value from the warranty the operator must main tain unit as instructed in this manual Various adjustments will need to be made periodical ly to properly maintain your unit S Once a year replace the spark plug air filter and check guide bar and chain for wear A new spark plug and air filter assures proper air fuel mi...

Page 15: ...ion and harmful emissions Always clean your air filter after 10 tanks of fuel or 5 hours of operation whichever comes first Clean more frequently in dusty conditions A used air filter can never be completely cleaned It is advisable to replace your air fil ter with a new one after every 50 hours ofop eration or annually whichever comes first 1 Loosen 3 screws on cylinder cover 2 Remove cylinder cov...

Page 16: ...ction in size of wood chips The size of the wood chip will decrease as thechain gets duller until it becomes more like a powder than a chip Note that dead or rotted wood will not produce a good chip S Saw cuts to one side or at an angle S Saw has to be forced through the cut Tools required S 5 32 inch 4 mm diameter round file and file holder S Flat file S Depth gauge tool TO SHARPEN CHAIN 1 Move O...

Page 17: ...aler or call our customer assistance help line at 1 800 554 6723 COOLING SYSTEM To keep the working temperature as low as possible the machine is equipped with a cooling system The cooling system consists of S Air intake on the starter S Air guide plate S Fins on the flywheel S Cooling fins on the cylinder S Cylinder cover directs cold air over the cylinder Clean the cooling system with a brush af...

Page 18: ... ON 2 See Difficult Starting in Operation Section 3 Fill tank with correct fuel mixture 4 Install new spark plug 5 Check for dirty fuel filter replace Check for kinked or split fuel line repair or replace Engine will not idle properly 1 Idle speed requires adjustment 2 Carburetor requires adjustment 1 See Carburetor Adjustment in the Service and Adjustments Section 2 Contact an authorized service ...

Page 19: ...APPLY TO YOU This is a limited warranty within the meaning of that term as defined in the Magnuson Moss Act of 1975 The policy of Poulan PRO is to continuously improve its products Therefore Poulan PRO reserves the right to change modify or discontinue models designs specifications and accessories of all products at any time without notice or obligation to any purchaser U S EPA CALIFORNIA ENVIRONM...

Page 20: ...PRO servicing center CONSEQUENTIAL DAMAGES Poulan PRO may be liable for damages to other en gine components caused by the failure of a warranted partstill underwarranty WHATIS NOT COVERED All failures caused by abuse neglect or improper maintenance are not covered ADD ON OR MODIFIED PARTS Theuseofadd onor modifiedparts can be grounds for disallowing a warranty claim Poulan PRO is not liable to cov...

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