Craftsman 358350210 Owner’s Manual

Operator's Manual
ICRAFTSMAN°I
2.8 cu.in./46cc 2-Cycle
GASOLINE CHAIN SAW
Model No.
358.350210 - 20 In. Bar
Safety
Assembly
Maintenance
Parts List
Espar_ol, p. 24
WARNING:
Read and follow all Safety Rules and Operating Instructions before first use of this product.
For answers to your questions about this product: Call 7 am-7 pm, Mon-Sat; Sun, 10 am-7 pm
1-800-235-5878
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
530165769 9/12/06
Warranty 2 Storage 18 Safety Rules 2 Troubleshooting Table 19
Assembly 6 Emissions Statement 20 Operation 7 Parts List 22
Maintenance 13 Spanish 24 Service and Adjustments 17 Parts & Ordering Back Cover
ONE YEAR FULL WARRANTY ON CRAFTSMAN _RGAS CHAIN SAW When used and maintained according to the operator's manual, if this product fails
due to a defect in material or workmanship within one year from the date of purchase, return it to any Sears store, Sears Service Center, or other Craftsman outlet in the United States for free repair (or replacement if repair proves impossible).
This warranty excludes the bar, chain, spark plug and air filter, which are expendable parts that can wear out from normal use in less than one year.
This warranty applies for only 30 days from purchase date if this product is used for commercial or rental purposes.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
A rot, WARNING: Always disconnect
spark plug wire when making repairs except for carburetor adjustments. Be- cause a chain saw is a high-speed
woodcutting tool, special precautions must be observed to reduce risk of ac-
cidents. Careless or improper use of this tool can cause serious injury.
PLAN AHEAD
Restrict tile use of your saw to adult
users who understand and can fol- low the safety rules, precautions,
and operating instructions found in this manual.
Hearing Safety Hat Protection ,_ Eye
Snug _ Qo'gl'_ Protection Fitting _ Heavy Duty
Clothing Gloves
Safety Safety Chaps Shoes
Wear protective gear. Always use steel-toed safety footwear with non-
slip soles; snug-fitting clothing;
heavy-duty, non-slip gloves; eye pro-
tection such as non-fogging, vented
goggles or face screen; an approved
safety hard hat; and sound barriers
(ear plugs or mufflers) to protect your hearing. Regular users should have
hearing checked regularly as chain
saw noise can damage hearing.
Secure hair above shoulder length. Do not wear loose clothing or jewelry; they
can get caught in moving parts.
Keep all parts of your body away
from the chain when the engine is
running.
Keep children, bystanders, and ani- mals at least 30 feet (10 meters) away
from work area when starting or using
saw.
Do not handle or operate a chain saw
when you are fatigued, ill, or upset, or
if you have taken alcohol, drugs, or medication. You must be in good
physical condition and mentally alert. If
you have any condition that might be
aggravated by strenuous work, check
with doctor before operating.
Do not start cutting until you have a
clear work area, secure footing, and especially if you are felling a tree, a
retreat path.
2
OPERATE YOUR SAW SAFELY
Do not operate with one hand. Seri- ous injury to the operator, helpers, or bystanders may result from one-
handed operation. A chain saw is in- tended for two-handed use.
Operate the chain saw only in a well ventilated outdoor area.
Do not operate saw from a ladder or in a tree.
Make sure the chain will not make contact with any object while starting
the engine. Never try to start the saw when the guide bar is in a cut.
Do not put pressure on the saw at the end of the cut. Applying pressure
can cause you to lose control when the cut is completed.
Stop engine before setting saw down.
Hand carry saw only when engine is stopped. Carry with muffler away from body; guide bar and chain proj-
ecting behind you; guide bar prefer- ably covered with a scabbard.
Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Always replace bar, chain, hand
guard, chain brake, or other parts im- mediately if they become damaged,
broken, or are otherwise removed.
MAINTAIN YOUR SAW IN GOOD WORKING ORDER
Have all chain saw service per- formed by a qualified service dealer except the items listed in the MAINTE-
NANCE section of this manual.
Make certain the saw chain stops moving when the throttle trigger is
released. For correction, refer to CARBURETOR ADJUSTMENTS.
Keep the handles dry, clean, and free from oil or fuel mixture.
Keep caps and fasteners securely tightened.
Nonconforming replacement compo- nents or the removal of safety devices may cause damage to the unit and
possible injury to the operator or by- standers. Use only Craftsman acces- sories and replacement parts as rec- ommended. Never modify your saw.
Maintain chain saw with care.
Keep unit sharp and clean for better and safer performance.
Follow instructions for lubricating and changing accessories.
Check for damaged parts. Before fur- ther use of the chain saw, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its
intended function. Check for alignment
of moving parts, binding of moving
parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by a Sears Service Center
unless otherwise indicated elsewhere
in the operator's manual.
When not in use, chain saws should be stored in a dry, high or locked-up place out of the reach of children.
When storing saw, use a scabbard or
carrying case.
HANDLE FUEL WITH CAUTION
Do not smoke while handling fuel or
while operating the saw.
Eliminate all sources of sparks or
flame in the areas where fuel is
mixed or poured.
Mix and pour fuel in an outdoor area
and use an approved, marked con- tainer for all fuel purposes. Wipe up all fuel spills before starting saw.
Move at least 10 feet (3 meters) from
fueling site before starting.
Turn the engine off and let saw cool in a non-combustible area, not on
dry leaves, straw, paper, etc. Slowly
remove fuel cap and refuel unit.
Store the unit and fuel in a cool, dry
well ventilated space where fuel va-
pors cannot reach sparks or open
flames from water heaters, electric
motors or switches, furnaces, etc.
GUARD AGAINST KICKBACK Follow all safety rules to help avoid
kickback and other forces which can result in serious injury.
'x_ _ Kickback Path
, J,
Clear The Working Area
A
411 WARNING: Avoid kickback which can result in serious injury. Kickback
is the backward, upward or sudden for- ward motion of the guide bar occurring when the saw chain near the upper tip of the guide bar contacts any object such as a log or branch, or when the
wood closes in and pinches the saw chain in the cut. Contacting a foreign object in the wood can also result in
loss of chain saw control.
Rotational Kickback can occur when the moving chain contacts an
object at the upper tip of the guide bar. This contact can cause the
chain to dig into the object, which stops the chain for an instant. The result is a lightning fast, reverse reaction which kicks the guide bar up and back toward the operator.
Pinch-Kickback can occur when the the wood closes in and pinches the
moving saw chain in the cut along the top of the guide bar and the saw chain is suddenly stopped. This sud- den stopping of the chain results in a
reversal of the chain force used to cut wood and causes the saw to
move in the opposite direction of the chain rotation. The saw is driven
straight back toward the operator.
Pull-In can occur when the moving chain contacts a foreign object in the wood in the cut along the bottom of
the guide bar and the saw chain is suddenly stopped. This sudden stop- ping pulls the saw forward and away from the operator and could easily cause the operator to lose control of
the saw.
REDUCE THE CHANCE OF KICKBACK
Recognize that kickback can happen. With a basic understanding of kick-
back, you can reduce the element of surprise which contributes to acci-
dents.
Never let the moving chain contact any object at the tip of the guide bar.
Keep working area free from obstruc- tions such as other trees, branches,
rocks, fences, stumps, etc. Eliminate or avoid any obstruction that your
saw chain could hit while cutting.
When cutting a branch, do not let the guide bar contact another branch or
other objects around it.
Keep saw chain sharp and properly tensioned. A loose or dull chain can
increase the chance of kickback.
Follow manufacturer's chain sharp- ening and maintenance instructions. Check tension at regular intervals,
but never with engine running. Make sure bar clamp nuts are securely tightened.
Begin and continue cutting at full speed. If the chain is moving at a
slower speed, there is greater chance of kickback occurring.
Use extreme caution when re-enter-
ing a cut.
Do not attempt cuts starting with the tip of the bar (plunge cuts).
Watch for shifting logs or other forces that could close a cut and pinch or
fall into chain.
Use the specified Reduced-Kickback Guide Bar and Low Kickback Chain.
Avoid Pinch-Kickback:
Be extremely aware of situations or obstructions that can cause material
to pinch the top of or otherwise stop the chain.
Do not cut more than one log at a time.
Do not twist the saw as the bar is withdrawn from an undercut when
bucking.
Avoid Pull-In:
Always begin cutting with the engine at full speed and the saw housing against wood.
Use wedges made of plastic or wood. Never use metal to hold the
cut open.
MAINTAIN CONTROL
Stand to the teft of the saw
underside f[
Thumb on \!
Elbow locked
Never reverse hand positions
A good, firm grip on the saw with
both hands will help you maintain
control. Don't let go. Grip the rear
handle with your right hand whether you are right or left handed. Wrap the fingers of your left hand over and
around the front handlebar, and your
left thumb under the front handlebar.
Keep your left arm straight with the elbow locked.
Position your left hand on the front handlebar so it is in a straight line
4
withyourrighthandontherearhan- dlewhenmakingbuckingcuts.
Standslightlytotheleftsideofthe sawtokeepyourbodyfrombeingin
adirectlinewiththecuttingchain.
Standwithyourweightevenlybal-
ancedonbothfeet.
Donotoverreach.Youcouldbe drawnorthrownoffbalanceandlose
control.
Donotcutaboveshoulderheight.It
isdifficulttomaintaincontrolofsaw aboveshoulderheight.
KICKBACKSAFETY FEATURES
WARNING: The following fea-
tures are included on your saw to help reduce hazard of kickback; however,
such features will not totally eliminate this danger. Do not rely only on safety
devices. Follow all safety rules to help avoid kickback and other forces which
can result in serious injury.
Front Hand Guard: designed to re- duce the chance of your left hand contacting the chain if your hand
slips off the front handlebar.
Position of front and rear handlebars, designed with distance between
handles and "in-line" with each other. The spread and "in-line" position of
the hands provided by this design work together to give balance and
resistance in controlling the pivot of the saw back toward the operator if
kickback occurs.
Reduced-Kickback Guide Bar, de- signed with a small radius tip which
reduces the size of the kickback danger zone on the bar tip. This type
bar has been demonstrated to signif- icantly reduce the number and seri-
ousness of kickbacks when tested in accordance with ANSI B175.1.
]L._ Small Radius Tip
..__ Guide Bar
Guide Bar
Large Radius Tip {_
Low Kickback Chain, has met kick- back performance requirements
when tested on a representative sample of chain saws below 3.8 cu-
bic inch displacement specified in ANSI B175.1.
Low-Kickback Chain
/ Contoured Depth Gauge
,_l_-,_-_ Elongated Guard Unk
_ _ deflects kickback force
--\_ _ and allows wood to
CHAIN BRAKE
Chain Brake: designed to stop the chain in the event of kickback.
_i WARNING: WE DO NOT REP-
RESENT AND YOU SHOULD NOT AS- SUME THATTHE CHAIN BRAKE WILL
PROTECT YOU IN THE EVENT OF A KICKBACK. Kickback is a lightning fast
action which throws the bar and rotat- ing chain back and up toward the op-
erator. Kickback can be caused by al- lowing 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
operator. Either of these events may cause you to lose control of the saw
which could result in serious injury or
even death. DO NOT RELYUPON ANY OF THE DEVICES BUILT INTO YOUR SAW. YOU SHOULD USE THE SAW PROPERLY AND CAREFULLY TO AVOID
KICKBACK. Reduced-kickback guide bars and low-kickback saw chains re-
duce the chance and magnitude of kickback and are recommended. Your saw has a low kickback chain and bar
as original equipment. Repairs on a chain brake should be made by an au-
thorized Sears Service Center. Take your unit to the place of purchase orto
your nearest Sears Service Center.
Tip contact in some cases may cause a lightning fast reverse REACTION,
kicking guide bar up and back toward
operator.
Pinching the saw chain along the top of the guide bar may push the guide
bar rapidly back toward the operator.
Either of these reactions may cause you to lose control of the saw which
could result in serious injury. Do not
rely exclusively upon safety devices built into your saw.
gradually ride into Cutter
SAFETYNOTICE:Exposuretovibra- tionsthroughprolongeduseofgaso-
linepoweredhandtoolscouldcause bloodvesselornervedamageinthe
fingers,hands,andjointsofpeople pronetocirculationdisordersor abnormalswelling.Prolongedusein
coldweatherhasbeenlinkedtoblood vesseldamageinotherwisehealthy
people.Ifsymptomsoccursuchas numbness,pain,lossofstrength, changeinskincolorortexture,orloss
offeelinginthefingers,hands,or joints,discontinuetheuseofthistool
andseekmedicalattention.Ananti-vi- brationsystemdoesnotguaranteethe
avoidanceoftheseproblems.Users whooperatepowertoolsonacontinu-
alandregularbasismustclosely monitortheirphysicalconditionand
theconditionofthistool. CHAINBRAKE:Ifthissawistobe
usedforcommerciallogging,achain brakeisrequiredandshallnotbere-
movedorotherwisedisabledtocom- plywithFederalOSHARegulationsfor
CommercialLogging.
SPARK ARRESTING SCREEN: Your
saw is equipped with a temperature lim-
iting muffler and spark arresting screen
which meets the requirements of Califor-
nia Codes 4442 and 4443. All U.S. for- est land and the states of California, Ida- ho, Maine, Minnesota, New Jersey,
Oregon, and Washington require by law
that many internal combustion engines
be equipped with a spark arresting
screen. Ifyou 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 viola- tion of the law. Refer to Customer Re-
sponsibilities chart in the MAINTENANCE
section. STANDARDS: This chain saw is listed
by Underwriters Laboratories, Inc. in accordance with American National
Standards for Gasoline-Powered Chain Saws Safety Requirements
(ANSI B175.1-2000).
A_______ _WARNING: Before using chain
saw, ensure all fasteners are secure. CARTON CONTENTS
Check carton contents against the fol- lowing list.
Model 358.350210
Chain Saw (fully assembled)
Bar tool
2-cycle engine oil
Carrying case Examine parts for damage. Do not use
If you need assistance or find parts missing or damaged, please call
1-800-235-5878. NOTE: It is normal to hear the fuel filter
rattle in an empty fuel tank. Your unit has been factory tested and the carburetor precisely adjusted. As a
result you may smell gasoline or find a
drop of oil/fuel residue on the muffler when you unpack the unit.
ASSEMBLY
Your saw is fully assembled; no as-
sembly is necessary.
KNOWYOURSAW
READ THIS OPERATOR'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
CHAIN SAW. Compare the illustrations with your unit to familiarize yourself with the location of the various controls and adjustments. Save this manual for future ref- erence.
Chain Adjustment Front Hand Guard
Tool \. r'_
(Bar Tool) _ I1_ [
Muffler _lt_l
Chah_ ""_ _ l
Ba_eSprocket Ear O';j
Fill Cap Starter Housing Fuel Mix Fill Cap
Front Handle
Starter Rope
_'_ _ / ON/STOP _r..,,..'/ -- Switch
Cylinder Cover
Chain Brake
Rear Handle
Throttle Trigger
Throttle Lock-out
Choke/Fast Idle Lever
ON/STOP SWITCH The ON/STOP SWITCH is used to stop the engine.
THROTTLE TRIGGER The THRO'FI-LE TRIGGER controls en-
gine speed. THROTTLE LOCK-OUT
The THRO'Iq-LE LOCK-OUT must be pressed before you can squeeze the
throttle trigger. This feature prevents you from accidentally squeezing the trigger.
CHOKE/FAST IDLE LEVER The choke and fast idle are set by pull- ing the CHOKE/FAST IDLE LEVER out to the full extent for cold starting or after refueling. The choke provides additional
fuel to the engine during cold starting.
Direction
Adjusting
Guide Bar
Chain Brake Nuts
of Chain Travel
CHAIN BRAKE The CHAIN BRAKE is a device de-
signed to stop the chain if kickback oc-
curs. The chain brake activates auto-
matically in the event of kickback. The
chain brake activates manually if the front hand guard is pushed forward.
The chain brake is disengaged by pull-
ing the front hand guard back toward the front handle as far as possible.
CHAIN TENSION
It is normal for a new chain to stretch
during first 30 minutes of operation. You should check your chain tension
frequently. See CHAIN TENSION in the
SERVICE AND ADJUSTMENTS section.
'_ WARNING: Muffler is very hot
during and after use. Do not touch the
muffler or allow combustible material
such as dry grass or fuel to do so.
7
BEFORE STARTING ENGINE
z't dt_ WARNING: Be sure to read the
fuel handling information in the safety rules section of this manual before you
begin. If you do not understand the fuel handling information do not at- tempt to fuel your unit. Seek help from
someone that does understand the in- formation or call the customer assis-
tance help line at 1-800-235-5878.
GUIDE BAR AND CHAIN OIL
The bar and chain require lubrication. The chain oiler provides continuous lubrication to the chain and guide bar.
Be sure to fill the bar oil tank when you
fill the fuel tank (Capacity = 6.8 ft. oz.).
Lack of oil will quickly ruin the bar and
chain. Too little oil will cause overheat- ing shown by smoke coming from the
chain and/or discoloration of the bar.
For maximum guide bar and chain life,
we recommend you use Craftsman chain saw bar oil. If Craftsman bar oil
is not available, you may use a good grade SAE 30 oil until you are able to
obtain Craftsman brand. The oil output is automatically metered during opera- tion. Your saw will use approximately one tank of bar oil for every tank of fuel mix. Always fill bar oil tank when you
fill the fuel tank.
FUELING ENGINE
4t_ WARNING: Remove fuel cap slowly when refueling. This engine is certified to operate on un- leaded gasoline. Before operation, gaso-
line must be mixed with a good quality synthetic 2-cycle air-cooled engine oil. We recommend Craftsman brand syn- thetic oil. Mix gasoline and oil at a ratio of 40:1. A 40:1 ratio is obtained by mix- ing 3.2 ounces of oil with 1 gallon of un- leaded gasoline. Included with this saw
is a 3.2 ounce container of oil. Pour the entire contents of this container into 1
gallon of gasoline to achieve the proper fuel mixture. DO NOT USE automotive
oil or boat oil. These oils will cause en- gine damage. When mixing fuel follow
the instructions printed on the oil con- tainer. Once oil is added to the gaso- line, shake container momentarily to assure that the fuel is thoroughly mixed. Always read and follow the safety rules relating to fuel before fuel-
ing your unit.
IMPORTANT
Experience indicates that alcohol
blended fuels (called gasohol or using
ethanol or methanol) can attract mois- ture which leads to separation and formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied before storage for 30 days or
longer. Drain the gas tank, start the en-
gine and let it run until the fuel lines and
carburetor are empty. Use fresh fuel
next season. See STORAGE instructions for additional information. Never use en-
gine or carburetor cleaner products in the fuel tank or permanent damage may
occur. See the STORAGE section for
additional information.
CHAIN BRAKE
Ensure chain brake is disengaged by
pulling the front hand guard back to- ward the front handle as far as pos-
sible. The chain brake must be disen-
gaged before cutting with the saw. _b WARNING: The chain must not
move when the engine runs at idle speed. If the chain moves at idle
speed, refer to CARBURETOR ADJUST-
MENT within this manual. Avoid con- tact with the muffler. A hot muffler can
cause serious burns.
STOPPING YOUR ENGINE
Move ON/STOP switch to the STOP position.
STARTING POSITION
To start the engine, hold tile saw firmly
on the ground as illustrated below. Make sure the chain is free to turn
without contacting any object.
Starter Rope Handle
Right Foot Through Rear Handle
IMPORTANT POINTS TO REMEMBER
When pulling the starter rope, do not
use the full extent of the rope as this can cause the rope to break. Do not let start- er rope snap back. Hold the handle and
let the rope rewind slowly.
8
d
Forcoldweatherstarting,starttheunit atFULLCHOKE;allowtheengineto warmupbeforesqueezingthethrottle trigger.
NOTE:Donotcutmaterialwiththe choke/fastidleleverattheFULL CHOKEposition.
STARTING A COLD ENGINE (or a warm engine after running out of
fuel)
NOTE: In tile following steps, when
the choke/fast idle lever is pulled out to the full extent, the correct throttle set-
ting for starting is set automatically.
1. Move ON/STOP switch to the ON position.
2. Pull the choke/fast idle lever out to the full extent (to the FULL CHOKE
position).
3. Pull starter rope quickly with your
right hand a maximum of 10 times.
Then, proceed to the next step.
NOTE: If the engine sounds as if it is
trying to start before the 10th pull, stop pulling and immediately proceed to the
next step.
4. Push the choke/fast idle lever in to the HALF CHOKE position.
5. Pull the starter rope quickly with your
right hand until the engine starts.
6. Allow the engine to run for approxi-
mately 5 seconds. Then, squeeze and release throttle trigger to allow engine to return to idle speed.
CHOKE/FAST IDLE LEVER
4. Squeeze and release the throttle trigger to allow engine to return to
idle speed.
DIFFICULT STARTING (or starting a
flooded engine)
The engine may be flooded if it has not
started after 10 pulls. Flooded engines can be cleared of ex- cess fuel by following the warm engine starting procedure listed above, insure
the ON/STOP switch is in the ON position.
Starting could require many pulls de- pending on how badly unit is flooded. If engine still fails to start, refer to TROU-
BLESHOOTINGTABLE or call 1-800-235-5878.
CHAIN BRAKE
A
WARNING: If the brake band is
worn too thin it may break when the
chain brake is triggered. With a broken brake band, the chain brake will not stop
the chain. The chain brake must be re-
placed if any part is worn to less than
0.020 inch (0.5 ram) thick. Repairs on a chain brake should be made by your Sears Service Center. Take your unit to
the place of purchase or to the nearest
Sears Service Center.
This saw is equipped with a chain brake. The brake is designed to stop
the chain if kickback occurs.
The inertia-activated chain brake is
activated if the front hand guard is
pushed forward, either manually (by hand) or automatically (by sudden movement).
If the brake is already activated, it is
disengaged by pulling the front hand guard back toward the front handle
as far as possible.
When cutting with the saw, the chain brake must be disengaged.
Disengaged _
STARTING A WARM ENGINE
1. Move ON/STOP switch to the ON position.
2. Pull the choke/fast idle lever out to the HALF CHOKE position.
3. Pull the starter rope quickly with your
right hand until the engine starts.
Braking function control CAUTION: The chain brake must be
checked several times daily. Tile engine must be running when performing this procedure. This is the only instance
when the saw should be placed on the
ground with the engine running. Place the saw on firm ground. Grip the
rear handle with your right hand and
9
thefronthandlewithyourlefthand. Applyfullthrottlebyfulldepressingthe throttletrigger.Activatethechainbrake byturningyourleftwristagainstthe handguardwithoutreleasingyourgrip
aroundthefronthandle.Thechain shouldstopimmediately. Inertiaactivating function control
_ WARNING: When performing the following procedure, the engine must
be turned off. Grip the rear handle with your right
hand and the front handle with your left hand. Hold the chain saw approxi- mately 14" (35 cm) above a stump or other wooden surface. Release your
grip on the front handle and use the weight of the saw to let the tip of the guide bar fall forward and contact the stump. When the tip of the bar hits the stump, the brake should activate.
OPERATING TIPS
Check chain tension before first use
and after 1 minute of operation. See CHAIN TENSION in the MAINTENANCE
section.
Cut wood only. Do not cut metal,
plastics, masonry, non-wood building materials, etc.
Stop the saw if the chain strikes a
foreign object. Inspect the saw and repair parts as necessary.
Keep the chain out of dirt and sand.
Even a small amount of dirt will quickly dull a chain and increase the
possibility of kickback.
Practice cutting a few small logs using
the following steps. This will help you get the "feel" of using your saw before
you begin a major sawing operation.
Squeeze the throttle trigger and al- low the engine to reach full speed before cutting.
Begin cutting with the saw frame against the log.
Keep the engine at full speed the entire time you are cutting.
Allow the chain to cut for you. Exert only light downward pressure.
Release the throttle trigger as soon as the cut is completed, allowing
the engine to idle. If you run the saw at full throttle without a cutting
load, unnecessary wear can occur.
To avoid losing control when cut is complete, do not put pressure on
saw at end of cut.
Stop the engine before setting the saw down.
TREE FELLING TECHNIQUES
AId, WARNING: Check for broken or
dead branches which can fall while cutting causing serious injury. Do not
cut near buildings or electrical wires if you do not know the direction of tree fall, nor cut at night since you will not
be able to see well, nor during bad weather such as rain, snow, or strong
winds, etc.
Carefully plan your sawing operation in advance.
Clear the work area. You need a
clear area all around the tree so you can have secure footing.
The chain saw operator should keep
on the uphill side of the terrain as the tree is likely to roll or slide downhill
after it is felled.
Study the natural conditions that can
cause the tree to fall in a particular direction, such conditions include:
The wind direction and speed.
The lean of the tree. The lean of a
tree might not be apparent due to uneven or sloping terrain. Use a plumb or level to determine the di-
rection of tree lean.
Weight and branches on one side.
Surrounding trees and obstacles.
Look for decay and rot. If the trunk is rotted, it can snap and fall toward the
operator.
Make sure there is enough room for
the tree to fall. Maintain a distance of 2-1/2 tree lengths from the nearest
person or other objects. Engine noise can drown out a warning call.
Remove dirt, stones, loose bark, nails, staples, and wire from the tree
where cuts are to be made.
_" _e_z Plan a clear retreat path
,_.... _,,. ,_--'_'- Direction of fall
45_ /_
10
FELLING LARGE TREES
(6 inches in diameter or larger)
The notch method is used to fell large trees. A notch is cut on the side of the
tree in the desired direction of fall. After a felling cut is made on the opposite
side of tree, the tree should fall in the direction of the notch.
NOTE: If the tree has large buttress
roots, remove them before making the notch. If using saw to remove buttress roots, keep saw chain from contacting
ground to prevent dulling of the chain.
NOTCH CUT AND FELLING TREE
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 cutting the bottom. See
illustration. Once the notch is cut re- move the wedge of wood from the
tree.
Felling cut here
Firstcut
Secondcut_"!_ t
After removing the wood from the notch, make the felling cut on the op- posite side of the notch. This is done
by making a cut about two inches 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.
Hinge holds tree on stump and helps
control fall
Opening of feINng
Closing of notch
NOTE: Before felling cut is complete, use wedges to open the cut when necessary to control the direction of
fall. To avoid kickback and chain damage, use wood or plastic wedges,
but never steel or iron wedges.
Be alert of signs that the tree is ready to fall: cracking sounds, widen- ing of the felling cut, or movement in
the upper branches.
As tree starts to fall, stop saw, put it
down, and get away quickly on your
planned retreat path.
DO NOT use your saw to cut down a partially fallen tree. Be extremely
cautious with partially fallen trees that may be poorly supported. When a tree doesn't fall completely, 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 tile 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
Cut only one log at a time.
Cut shattered wood very carefully;
sharp pieces of wood could be flung toward operator.
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.
Do not cut in an area where logs, limbs, and roots are tangled. Drag
the logs into a clear area before cut- ting them by pulling out exposed and cleared logs first.
BUCKING TECHNIQUES
_,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. Restart the saw and carefully reenter
the cut. 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.
11
Overcuttingbeginsonthetopsideof thelogwiththebottomofthesaw againstthelog.Whenovercuttinguse lightdownwardpressure.
Overcutting Undercutting
Undercutting involves cutting on the
underside of the log with top of saw against the log. When undercutting
use light upward pressure. Hold saw firmly and maintain control. The saw will tend to push back toward you.
,Lot
4t_ WARNING: Never turn saw up- side down to undercut, The saw can-
not be controlled in this position. Always make your first cut on the com-
pression side of the log. The compres- sion side of the log is where the pres- sure of the log's weight is
concentrated.
Firstcut on compression side of log
Using a log for support _/ 2 nd Cut
_lst Cut
n_ Cut
LIMBING AND PRUNING
Second cut
First cut on compression side of log
BUCKING WITHOUT A SUPPORT
Overcut through 1/3of the diameter of the log,
Roll the log over and finish with a second overcut.
Watch for logs with a compression side to prevent the saw from pinch-
ing. See illustrations above for cut- ting logs with a compression side.
BUCKING USING A LOG OR
SUPPORT STAND
Remember your first cut is always on the compression side of the log. (Refer to the illustrations for your first and second cut)
Your first cut should extend 1/3 of the diameter of the log.
Finish with your second cut.
WARNING: Be alert for and guard
against kickback. Do not allow the mov- ing chain to contact any other branches or objects at the nose of the guide bar
when limbing or pruning. Allowing such
contact can result in serious injury.
,_ WARNING: Never climb into a tree to limb or prune. Do not stand on
ladders, platforms, a log, or in any po- sition which can cause you to lose
your balance or control of the saw.
IMPORTANT POINTS
Watch out for springpoles. Springpoles are small size limbs
which can whip toward you, or pull you off balance. Use extreme cau- tion when cutting small size limbs.
Be alert for springback from any branches that are bent or under
pressure. Avoid being struck by the branch or the saw when the tension in the wood fibers is released.
Frequently clear branches out of the
way to avoid tripping on them.
12
LIMBING
Limbatreeonlyafteritiscutdown.
Leavethelargerlimbsunderneath felledtreetosupporttreeasyouwork.
Startatthebaseofthefelledtree andworktowardthetop,cutting
branchesandlimbs.Removesmall limbswithonecut.
Keeptreebetweenyouandthechain.
Removelargerbrancheswiththe cuttingtechniquesdescribedin BUCKINGWITHOUTASUPPORT.
Make your first cut 1/3of the way through the bottom of the limb. This cut will make the limb sag so that it falls easily on the second cut.
Next make the second cut an over- cut all the way through the limb.
Finish the pruning operation by using an overcut so that the stump of the
limb protrudes 1 to 2 inches from the
trunk of the tree.
cut
Alwaysuseanovercuttocutsmall andfreelyhanginglimbs.Undercut- tingcouldcauselimbstofalland pinchsaw.
PRUNING
_WARNING: Limit pruning to limbs shoulder height or below. Do not cut if
branches are higher than your shoul- der. Get a professional to do the job.
CUSTOMER RESPONSIBILITIES
_WARNING: Disconnect the spark plug before performing maintenance
except for carburetor adjustments=
Fill in dates as you complete
regular service
Check for damaged/worn parts
Check for loose fasteners/parts Check chain tension
Check chain sharpness Check guide bar
Check fuel mixture level Check guide bar and chain oil
Inspect and clean unit & decals
Check chain brake
Clean guide bar groove
Clean air filter Clean/inspect muffler and spark
arresting screen Replace spark plug and fuel filter
Before After
Use Use
v,"
lSecond First cut
1/3 of way
/_ 3rdcut 1 to2in.from trunk of tree
Ever Every 5 hrs. 25 hrs. Yearly
v"
Service
Dates
13
GENERALRECOMMENDATIONS
1. Use the screwdriver end of the
Thewarrantyonthisunitdoesnotcover itemsthathavebeensubjectedtooper- atorabuseornegligence.Toreceivefull
valuefromthewarranty,theoperator mustmaintainunitasinstructedinthis
manual.Variousadjustmentswillneed tobemadeperiodicallytoproperly maintainyourunit.
Onceayear,replacethesparkplug andairfilterelement and check guide
bar and chain for wear. A new spark plug and air filter element assures proper air-fuel mixture and helps your engine run better and last longer.
CHECK FOR DAMAGED OR WORN PARTS
Contact Sears Service Center for re- placement of damaged or worn parts.
NOTE: It is normal for a small amount
of oil to appear under the saw after en- gine stops. Do not confuse this with a leaking oil tank.
ON/STOP Switch - Ensure ON/STOP switch functions properly by moving the switch to the STOP position. Make sure engine stops; then restart engine and continue.
Fuel Tank - Do not use chain saw if fuel tank shows signs of damage or
leaks.
Oil Tank - Do not use chain saw if oil tank shows signs of damage or
leaks.
CHECK FOR LOOSE
FASTENERS AND PARTS
Chain Brake Nuts
Chain
Muffler
Cylinder Shield
Air Filter
Handle Screws
Vibration Mounts
Starter Housing
Front Hand Guard
CHECK CHAIN TENSION _l_ WARNING: Wear protective
gloves when handling chain. The chain is sharp and can cut you even
when it is not moving. Chain tension is very important. Chains stretch during use. This is es- pecially true during the first few times you use your saw. Always check
chain tension each time you use and refuel your saw.
Chain Brake Adjusting Tool
2. Loosen chain brake nuts until they
3. Turn adjusting screw clockwise un-
4. Using bar tool, roll chain around
5. Lift up tip of guide bar to check for
6. While lifting tip of guide bar, tighten
7. Use the screwdriver end of the bar
8. If chain does not rotate, it is too
9. If chain is too loose, it will sag be-
chain adjustment tool (bar tool) to move chain around guide bar to
ensure kinks do not exist. The chain should rotate freely.
,-z .zL_//mill uide
Nuts Screw (Bar Tool)
are finger tight against the chain brake.
til chain solidly contacts bottom of guide bar rail.
guide bar to ensure all links are in bar groove.
screw
Chain Brake Nuts
Adjusting Screw - 1/4 Turn
sag. Release tip of guide bar, then turn adjusting screw 1/4 turn clock- wise. Repeat this step until sag
does not exist.
chain brake nuts securely with the bar tool.
t1"
tool to move chain around guide bar.
tight. Slightly loosen chain brake nuts and loosen chain by turning
the adjusting screw counterclock- wise. Retighten chain brake nuts.
low the guide bar. DO NOT operate the saw if the chain is loose.
14
Loading...
+ 31 hidden pages