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NOTE:

If the tree has large buttress roots,

remove them before making the notch. If us-

ing saw to remove buttress roots, keep saw

chain from contacting ground to prevent dull-

ing of the chain.

NOTCH CUT AND FELLING THE

TREE

S

Make notch cut by cutting the top of the

notch first. Cut through

1/3

of the diameter

of the tree. Next complete the notch by cut-

ting the bottom of the notch. See illustra-

tion. Once the notch is cut remove the

notch of wood from the tree.

Notch

First cut

Second cut

Final (felling) cut here, 2 inches

(5 cm) above center of notch.

Hinge

S

After removing the wood from the notch,

make the felling cut on the opposite side of

the notch. This is done by making a cut about

two inches (5 cm) higher than the center of

the notch. This will leave enough uncut wood

between the felling cut and the notch to form

a hinge. This hinge will help prevent the tree

from falling in the wrong direction.

Opening

of felling

cut

Closing of

notch

Hinge holds tree on stump and helps

control fall

NOTE:

Before felling cut is complete, use

wedges to open the cut if necessary to

control the direction of fall. To avoid kickback

and chain damage, use wood or plastic

wedges, but never steel or iron wedges.

S

Be alert to signs that the tree is ready to fall:

cracking sounds, widening of the felling cut,

or movement in the upper branches.

S

As tree starts to fall, stop saw, put it down,

and get away quickly on your planned re-

treat path.

S

DO NOT cut down a partially fallen tree

with your saw. Be extremely cautious with

partially fallen trees that may be poorly

supported. When a tree doesn’t fall com-

pletely, set the saw aside and pull down the

tree with a cable winch, block and tackle,

or tractor.

CUTTING 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 small logs. Never

allow another person to hold the log while

cutting and never hold the log with your leg

or foot.

S

Do not cut in an area where logs, limbs,

and roots are tangled such as in a blown

down area. Drag the logs into a clear area

before cutting by pulling out exposed and

cleared logs first.

TYPES OF CUTTING USED FOR

BUCKING

WARNING:

If saw becomes

pinched or hung in a log, don’t try to force it

out. You can lose control of the saw resulting

in injury and/or damage to the saw. Stop the

saw, drive a wedge of plastic or wood into the

cut until the saw can be removed easily. Re-

start the saw and carefully reenter the cut. To

avoid kickback and chain damage, do not

use a metal wedge. Do not attempt to restart

your saw when it is pinched or hung in a log.

Use a wedge to remove pinched saw

Turn saw OFF and use a plastic or

wooden wedge to force cut open.

Overcutting

begins on the top side of the log

with the bottom of the saw against the log.

When overcutting use light downward pres-

sure.

Overcutting

Undercutting

Undercutting

involves cutting on the under-

side of the log with top of saw against the log.

When undercutting use light upward pres-

sure. Hold saw firmly and maintain control.

The saw will tend to push back toward you.

WARNING:

Never turn saw upside

down to undercut. The saw cannot be con-

trolled in this position.

Always make your first cut on the compres-

sion side of the log. The compression side of

the log is where the pressure of the log’s

weight is concentrated.

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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