R
CS2138
Instruction Manual
Manuel d’instructions
Betriebsanweisung
Manual de instrucciones
English
Please read these instructions carefully and make sure you understand
them before using this unit.
Français
Avant d’utiliser cet appareil, veuillez lire attentivement les instructions et
assurez--vous de les avoir comprises.
Deutsch
Lesen Sie diese Hinweise zur Handhabung des Geräts aufmerksam durch.
Verwenden Sie es erst, wenn Sie sicher sind, daß Sie alle Anweisungen
verstanden haben.
Español
Lea atentamente las instrucciones y asegúrese de entenderlas antes de
utilizar esta unidad.
545079719
1/3/06
SAFETY RULES
S Carefully plan your sawingoperation inad-
vance. Do not start cutting until you havea
clear work area, secure footing, and, if you
are felling trees, a planned retreat path.
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
cause serious injury.
OPERATE YOUR SAW SAFELY
S Do not operate a chain saw with one hand.
Serious injury to the operator, helpers, by-
standers or any combination of these per-
sons may result from one-handed opera-
tion.
A
chain saw is intended for
two-handed use.
S Operate the chain saw only in a well-venti-
lated outdoor area.
PLAN AHEAD
S Do not operate saw from a ladder or in a
tree, unless you are specifically trained to
do so.
S Read this manual carefully until you com-
pletely understand and can follow all safe-
ty rules, precautions, and operating in-
structions before attempting to use the
unit.
S 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.
S Restrict the use of your saw to adult users
who understand and can follow safety
rules, precautions, and operating instruc-
tions found in this manual.
S 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.
S Stop the engine before setting the saw
down.
S Do not operate a chain saw that is dam-
aged, improperly adjusted, or not com-
pletely and securely assembled. Always
replace bar, chain, hand guard, or chain
brake immediately if it becomes damaged,
broken or is otherwise removed.
Safety Hat
Eye
Hearing
Protection
otection
Snug
Fitting
avy Duty
oves
Clothing
S With the engine stopped, hand carry the
chain saw with the muffler away from your
body, and the guide bar and chain to the
rear, preferably covered with a scabbard.
Sa
Sh
Chaps
MAINTAIN YOUR SAW IN GOOD
WORKING ORDER
S Have all chain saw service performed by a
qualified service dealer with the exception of
the items listed in the maintenance section of
this manual. For example, if improper tools
are used to remove or hold the flywheel
when servicing the clutch, structural damage
to the flywheel can occur and cause the fly-
wheel to burst.
S Wear protective gear. Always use steel-
toed safety footwear with non-slip soles;
snug-fitting clothing; heavy-duty, non-slip
gloves; eye protection such as non-fog-
ging, vented goggles or face screen; an
approved safety hard hat; and soundbarri-
ers (ear plugs or mufflers) to protect your
hearing. Regular users should have hear-
ing checked regularly as chain saw noise
can damage hearing. Secure hair above
shoulder length.
S Keep all parts of your body away from the
chain when the engine is running.
S Keep children, bystanders, and animals a
minimum of 10 Meters away from the work
area. Do not allow other people or animals
to be near the chain saw when starting or
operating the chain saw.
S Do not handle or operate a chain saw
whenyouare fatigued, ill, or upset, or if you
have taken alcohol, drugs, or medication.
You must be in good physical condition
and mentally alert. Chain saw work is
strenuous. If you have any condition that
might be aggravated by strenuous work,
check with your doctor before operating a
chain saw.
S Make certain the saw chain stops moving
when the throttle trigger is released. For
correction, refer to CARBURETOR AD-
JUSTMENTS.
S Never modify your saw in any way. Use
only attachments supplied or specifically
recommended by the manufacturer.
S Keep the handles dry, clean, and free of oil
or fuel mixture.
S Keep fuel and oil caps, screws, and fas-
teners securely tightened.
S Use only JonseredR accessories and re-
placement parts as recommended.
HANDLE FUEL WITH CAUTION
S Do not smoke while handling fuel or while
operating the saw.
S Eliminate all sources of sparks or flame in
the areas where fuel is mixed or poured.
There should be nosmoking, openflames,
or work that could cause sparks. Allow en-
gine to cool before refueling.
3
S Mix and pour fuel in an outdoor area on bare
ground; store fuel in a cool, dry, well venti-
lated place; and use an approved, marked
container for all fuel purposes. Wipe up all
fuel spills before starting saw.
S Move at least 10 feet (3 meters) from fuel-
ing site before starting engine.
Kickback Path
S 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.
Avoid obstructions
S Storetheunit and fuel in an area where fuel
vapors cannot reach sparks or open
flames from water heaters, electric motors
or switches, furnaces, etc.
Clear the working area
KICKBACK
REDUCE THE CHANCE OF
KICKBACK
WARNING: Avoid kickback which
can result in serious injury. Kickback is the
backward, upwardor sudden forwardmotion
of the guide bar occurring when the saw
chain near the upper tip of theguide bar con-
tacts any object such as a log or branch, or
when the wood closes in and pinches the
saw chain in the cut. Contacting a foreignob-
ject in the wood can also result in loss of
chain saw control.
S Rotational Kickback can occur when the
moving chain contacts an object at the up-
per 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 to-
ward the operator.
S 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 sudden 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.
S Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents.
S Never let themoving chain contact any ob-
ject at the tip of the guide bar.
S Keep the 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 you are cutting through a particular log
or branch.
S Keep your saw chain sharp and properly
tensioned. A loose or dull chain can increase
the chance of kickback occurring. Follow
manufacturer’s chain sharpening and main-
tenance instructions. Check tension at regu-
lar intervals with the engine stopped, never
with the engine running. Make sure the bar
clamp nuts are securely tightened after ten-
sioning the chain.
S Begin and continue cutting at full speed. If
the chain is moving at a slower speed,
there is greater chance of kickback occur-
ring.
S Cut one log at a time.
S Use extreme caution when re-entering a
previous cut.
S 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
stopping pulls the saw forward and away
from the operator and could easily cause the
operator to lose control of the saw.
S Do not attempt cuts starting with the tip of
the bar (plunge cuts).
S Watch for shifting logs or other forces that
could close a cut and pinch or fall into chain.
S Use the Reduced--Kickback Guide Bar
and Low--Kickback Chain specified for
your saw.
Avoid Pinch -Kickback:
S Be extremely aware of situations or obstruc-
tions that can cause material to pinch the top
of or otherwise stop the chain.
MAINTAIN CONTROL
Stand to the lef
the saw
S Do not cut more than one log at a time.
S Do not twist the saw as the bar is with-
drawn from an undercut when bucking.
Avoid Pull -In:
S Always begin cutting with the engine at full
speed and the saw housing against wood.
S Use wedges made of plastic or wood.
Never use metal to hold the cut open.
Never reverse
hand positions
4
Symm
Large Radius Tip
Elbow locked
S Low--Kickback Chain, designed with a
contoured depth gauge and guard link
which deflect kickback force and allow
wood to gradually ride into the cutter.
Thumb on underside of
handlebar
Low-Kickback Chain
Contoured Depth Gauge
Elongated Guard Link
Deflects Kickback
Force And Allows
Wood To Gradually
Ride Into Cutter
S Keep a good, firm gripon the saw with both
hands when the engine is running and
don’t let go. A firmgrip will help you reduce
kickback and maintain control of the saw.
Keep the fingers of your left hand encir-
cling and your left thumb under the front
handlebar. Keep your right hand com-
pletely around the rear handle whether
your are right handed or left handed. Keep
your left arm straight with the elbow
locked.
S Handguard, designed to reduce the
chance of your left hand contacting the
chain if your hand slips off the front handle-
bar.
S Position of front and rear handlebars, de-
signed 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 kick-
back occurs.
S Position your left hand on the front handle-
bar so it is in a straight line with your right
hand on the rear handle when making
bucking cuts. Never reverse right and left
hand positions for any type of cutting.
S Standwith your weight evenly balancedon
both feet.
WARNING: DO NOT RELY UPON
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 reduce the
chance and magnitude of kickback and are
recommended. Your saw has a low kick-
back chain and bar as original equipment.
Repairs on a chain brake should be made by
an authorized servicing dealer. Take your
unit to the place of purchase if purchased
from a servicing dealer, or to the nearest au-
thorized master service dealer.
S Tip contact in some cases may cause a
lightning fast reverse REACTION, kicking
the guide bar upand back toward theoper-
ator.
S Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
S Stand slightly to the left side of the saw to
keep your body from being in a direct line
with the cutting chain.
S Do not overreach. You could be drawn or
thrown off balance and lose control of the
saw.
S Do not cut above shoulder height. It is diffi-
cult to maintain control of saw above
shoulder height.
KICKBACK SAFETY FEATURES
WARNING: The following features
are included on your saw to help reduce the
hazard of kickback; however, such features
will not totally eliminate this dangerous reac-
tion. As a chain saw user, do not rely only on
safety devices. You must follow all safety
precautions, instructions, and maintenance
in this manual to help avoid kickback and
other forces which can result in serious
injury.
S Reduced--Kickback Guide Bar, designed
with a small radius tip which reduces the
size of the kickback danger zone on the
bar tip. A Reduced--Kickback Guide Bar
has been demonstrated to significantly re-
duce the number and seriousness of kick-
backs.
S Either of these reactions may cause you to
lose control of the saw which could result
in serious injury. Do not rely exclusively
uponthesafety devices built into your saw.
CHAIN BRAKE
S Chain brake, designed to stop the chain in
the event of kickback.
WARNING: Your chain saw is
equipped with a chain brake that is designed
to stop the chain immediately if you get a
kickback. The chain brake reduces the risk
of accidents, but only you can prevent them.
DO NOT ASSUME THAT THE CHAIN
BRAKE WILL PROTECT YOU IN THE
EVENT OF A KICKBACK.
Reduced Kickback Symmetrical Guide Bar
Small Radius Tip
5
skin color or texture, or loss of feeling in the
fingers, hands, or joints, discontinue the use
of this tool and seek medical attention. An
anti-vibrationsystem does not guarantee the
avoidance of these problems. Users who
operate power tools on a continual and
regular basis must monitor closely their
physical condition and the condition of this
tool.
SAFETY
NOTICE: Exposure to
vibrations through prolonged use of gasoline
powered hand tools could cause blood
vessel or nerve damage in the fingers,
hands, and joints of people prone to
circulation disorders or abnormal swellings.
Prolonged use in cold weather has been
linked to blood vessel damage in otherwise
healthy people. If symptoms occur such as
numbness, pain, loss of strength, change in
ASSEMBLY
Protective gloves (not provided) should be
worn during assembly.
ATTACHING THE BUMPER SPIKE
The bumper spike may be used as a pivot
when making a cut.
ide view of
ain Brake
1. Loosen and remove thechain brakenuts
and the chain brake from the saw.
2. Attach the bumper spike with the two
screws as illustrated.
Adjustment located on Chain Brake
4. Turn the adjusting screw by hand coun-
terclockwise until the adjusting pin just
touches the stop. This should allow the
pin to be near the correct position.
5. Slide guide bar behind clutch drum until
guide bar stops against clutch drum
sprocket.
ATTACHING THE BAR & CHAIN (If
not already attached)
WARNING: Recheck each assem-
bly step if the saw is received assembled. Al-
ways wear gloves when handling the chain.
The chain is sharp and can cut you even
when it is not moving!
1. Loosen and remove thechain brakenuts
and the chain brake from the saw.
2. Remove the plastic shipping spacer (if
present).
Mount the Bar
6. Carefully remove the chain from the pack-
age. Hold chain with the drive links as
shown.
Tip of
Bar
Clutch Drum
CUTTERS MUST FACE IN
DIIRECTION OF ROTATION
Chain Brake
Nuts
Depth Gauge
Cutters
3. An adjusting pin and screw is used to ad-
just the tension of the chain. It is very im-
portant when assembling the bar, that the
pin located on the adjusting screw aligns
into a hole in the bar. Turning the screw will
move the adjustment pin up and down the
screw. Locate this adjustment before you
begin mounting the bar onto the saw. See
illustration below.
Drive Links
Place chain onto the sprocket
6
7. Place chain over and behind clutch, fitting
the drive links in the clutch drum sprocket.
8. Fit bottom of drive links between the
teeth in the sprocket in the nose of the
guide bar.
9. Fit chain drive links into bar groove.
10. Pull guide bar forward until chain is snug
in guide bar groove. Ensure all drive
links are in the bar groove.
Always check chain tension each time you
use and refuel your saw. You can adjust the
chain tension by loosening the chain brake
nuts and turning the adjusting screw 1/4 of a
turn while lifting up on the bar.
S If chain is too tight, turnadjusting screw 1/4
turn counterclockwise.
S If chain is too loose, turn adjusting screw
1/4 turn clockwise.
11. Now, install chain brake making sure the
adjusting pin is positioned in the lower
hole in the guide bar. Remember this pin
moves the bar forward and backward as
the screw is turned.
12. Install chainbrake nuts and finger tighten
only. Once the chain is tensioned, you
will need to tighten chain brake nuts.
Guide Bar
Chain Brake Nuts
Adjusting Screw -- 1/4 Turn
CHAIN TENSION (Including units
with chain already installed)
NOTE: When adjusting chain tension, make
sure the chain brake nuts are finger tight only.
Attempting to tension the chain when the chain
brake nuts are tight can cause damage.
S Lift up the tip of the bar and securely tight-
en the chain brake nuts with the bar tool.
S Recheck chain tension.
Checking the tension:
Use the screwdriver end of the chain adjust-
ment tool (bar tool) to move the chain around
the bar. If the chain does not rotate, it is too
tight. If too loose, the chain willsag below the
bar.
WARNING: If the saw is operated
with a loose chain, the chain could jump off
the guide bar and result in serious injury.
Chain Adjustment
Tool (Bar Tool)
Chain Brake Nuts
WARNING: Muffler is very hot during
and after use. Do not touch the muffler or al-
low combustible material such as dry grass
or fuel to do so.
Adjusting the tension:
Chain tension is very important. Chain
stretches during use. This is especially true
during the first few times you use your saw.
OPERATING YOUR UNIT
Fuel mix cap
BEFORE STARTING ENGINE
Oil Cap
WARNING: Be sure to read the fuel
information in the safety rules before you be-
gin. If you donot understand the safety rules,
do not attempt to fuel your unit. Contact an
authorized service dealer.
FUELING ENGINE
BAR AND CHAIN LUBRICATION
The bar and chain require continuous lubri-
cation. Lubrication is provided by the auto-
matic oiler system when the oil tank is kept
filled. Lack of oil will quickly ruin the bar and
chain. Too little oil will cause overheating
shown by smoke coming from the chain and/
or discoloration of the bar.
WARNING: Remove fuel cap slowly
when refueling.
This engine is certified to operate on unleaded
gasoline. Before operation, gasoline must be
mixed with a good quality 2-cycle air-cooled
engine oil designed to be mixed at a ratio of
40:1. A 40:1 ratio is obtained by mixing 0,125
liter of oil with 5 liters of unleaded gasoline. DO
NOT USE automotive or boat oil. These oils
will cause engine damage. When mixing fuel
follow the instructions printed on the container.
Always read and follow the safety rules relating
to fuel before fueling your unit.
Only use Bar and Chain Oil for bar and chain
lubrication.
7
1. Move ON/STOP switch to the ON posi-
tion.
IMPORTANT
Experience indicates that alcohol blended fuels
(called gasohol or using ethanol or methanol)
can attract moisture 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,
empty the fuel system before storage for 30
days or longer. Drain the gas tank, start the en-
gine and let it run until the fuel lines and carbu-
retor are empty. Use fresh fuel next season.
Never use engine or carburetor cleaner prod-
ucts in the fuel tank or permanent damage may
occur.
2. Pull out choke/fast idle to the full extent
(to the FULL CHOKE position).
3. Slowly press primer bulb 6 times.
4. Pull the starter rope sharply 5 times with
your right hand. Then, proceed to the
next step.
NOTE: If the engine sounds as if it is trying
to start before the 5th pull, stop pulling and
immediately proceed to the next step.
5. Push the choke/fast idle lever in to the
HALF CHOKE position.
CHOKE/FAST IDLE LEVER
CHAIN BRAKE
(SIDE VIEW)
Ensure chain brake is disengaged by pulling
the front hand guard back toward the front han-
dle as far as possible. The chain brake must
be disengaged before cutting with the saw.
Choke/
WARNING: The chain must not
move when the engine runs at idle speed. If
the chain moves at idle speed refer to CAR-
BURETOR ADJUSTMENT within this
manual. Avoid contact with the muffler. A hot
muffler can cause serious burns.
fast idle lever
OFF HALF FULL
6. Pull the starter rope sharply with your
right hand until the engine starts.
7. Allow the engine to run for approximately
30 seconds. Then, squeeze and release
throttle trigger to allow engine to return to
idle speed.
STARTING A WARM ENGINE
1. Move ON/STOP switch to the ON posi-
tion.
2. Pull the choke/fast idle lever out to the
HALF CHOKE position.
3. Slowly press the primer bulb 6 times.
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.
To stop the engine, move the ON/STOP
switch to the STOP position.
To start the engine, hold the saw firmly on
the ground as illustrated below. Make sure
the chain is free to turn without contacting
any object.
Use only 15″--- 1 8 ″ of rope per pull.
Hold saw firmly while pulling starter rope.
DIFFICULT STARTING (or starting a
flooded engine)
The engine may be flooded with too much
fuel if it has not started after 10 pulls.
Flooded engines can be cleared of excess
fuel by pushing the choke/fast idle lever in
completely (to the OFF CHOKE position)
and then following the warm engine starting
procedure listed above. Ensure the ON/
STOP switch is in the ON position.
Starting could require pulling the starter rope
handle many times depending on how badly
the unit is flooded. If engine fails to start, re-
fer to the TROUBLESHOOTING TABLE.
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 starter rope snap back. Hold
the handle and let the rope rewind slowly.
For cold weather starting, start the unit at full
choke; allow the engine to warm up before
squeezing the throttle trigger.
NOTE:Do not cut material with the choke/fast
idle lever at the FULL CHOKE position.
CHAIN BRAKE
STARTING A COLD ENGINE (or a
warm engine after running out of
fuel)
NOTE:Inthefollowing steps, when the cho-
ke/fast idle lever is pulled out to the full ex-
tent, the correct throttle setting for starting is
set automatically.
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 should be replaced by an authorized
service dealer if any part is worn to less than
0,02″ (0,5 mm) thick. Repairs on a chain
brake should be made by an authorized ser-
vicedealer. Take your unit to the place of pur-
chase if purchased from a servicing dealer,
or to the nearest authorized master service
dealer.
ON/STOP SWITCH
(SIDE VIEW)
ON
S This saw is equipped with a chain brake.
The brake is designed to stop the chain if
kickback occurs.
STOP
8
S The inertia activated chain brake is acti-
vated if the front hand guard is pushed for-
ward, either manually or by centrifugal
force.
S If the brake is already activated, it is disen-
gaged by pulling the front hand guard back
toward the front handle as far as possible.
S When cutting with the saw, the chain brake
must be disengaged.
should be placed on the ground with the en-
gine running.
Place the saw on firm ground. Grip the rear
handlewith your right hand andthe front han-
dle with your left hand. Apply full throttle by
fully depressing the throttle trigger. Activate
the chain brake by turning your left wrist
against the hand guard without releasing
your grip around the front handle. The chain
should stop immediately.
Disengaged
Engaged
Inertia activating function control
WARNING: When performing the fol-
lowing 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 approximately 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 top of the guide
bar fall forward and contact the stump.
When the tip of the bar hits the stump, the
brake should activate.
Braking function control
CAUTION: The chain brake must be
checked several times daily. The engine
must be running when performing this proce-
dure. This is the only instance when the saw
CUTTING METHODS
Carefully plan your sawing operation in ad-
vance. You need a clear area all around the
tree so you can have secure footing. Check
for broken or dead branches which can fall
on you causing serious injury.
IMPORTANT POINTS
S Check chain tension before first use and af-
ter 1 minute of operation. See CHAIN TEN-
SION in the ASSEMBLY section.
S Cut wood only. Do not cut metal, plastics,
masonry, non-wood building materials, etc.
S Stop the saw if the chain strikes a foreign
object. Inspect thesaw and repair parts as
necessary.
S Keep the chain out of dirt and sand. Evena
small amount of dirt will quickly dull a chain
and increase the possibility of kickback.
S Practice cutting a few small logs using the
following techniques to get the “feel” of us-
ing your saw before you begin a major
sawing operation.
Natural conditions that can cause a tree to
fall in a particular direction include:
S The wind direction and speed.
S 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 de-
termine the direction of tree lean.
S Weight and branches on one side.
S 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. En-
gine 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.
S
S
S
S
S
Squeeze the throttle trigger and allow 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.
Plan a clear retreat path
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.
Direction of Fall
S
To avoid losing control when cut is com-
plete, do not put pressure on saw at end
of cut.
45_
S Stop the engine before setting the saw down.
TREE FELLING TECHNIQUES
FELLING LARGE TREES
WARNING: Do not cut near buildings
or electrical wires if you do not know the di-
rection of tree fall, at night since you will not
be able to see well, or during bad weather
such as rain, snow, or strong winds. as fall is
unpredictable.
(15 cm in diameter or larger)
The notch method is used to fell large trees.
A notch is cut on the side of the tree in thede-
sired direction of fall. After a felling cut is
made on the opposite side of tree, the tree
will tend to fall into the notch.
9
NOTCH CUT AND FELLING THE
Important points
S Cut only one log at a time.
TREE
S Cut shattered wood very carefully; sharp
pieces of woodcould beflung towardoper-
ator.
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.
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. Drag the logs into a
clear area before cutting by pulling out ex-
posed and cleared logs first.
Final cut here. 5 cm above
center of notch.
First cut
Notch
5 cm
TYPES OF CUTTING USED FOR
BUCKING
5 cm
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
attempt torestart your saw whenit is pinched
or hung in a log.
Second cut
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 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.
Turn saw OFF and use a plastic or
wooden wedge to force cut open.
Overcutting begins on the top sideof thelog
with the saw against the log. When overcut-
ting use light downward pressure.
Hinge holds tree on stump and helps
control fall
Opening
of felling
cut
Overcutting
Undercutting
Closing of
notch
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.
NOTE: Before felling cut is complete, use
wedges to open the cut when necessary to
controlthedirectionof fall. To avoid kickback
or 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.
WARNING: Never turn saw upside
down to undercut. The saw cannot be con-
trolled in this position.
First cut on pressure side of log
S DO NOT cut down a partially fallen tree with
your saw. Be extremely cautious with par-
tially fallen trees that may be poorly sup-
ported. 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.
Second cut
Second cut
CUTTING A FALLEN TREE
(BUCKING)
Bucking is the term used for cutting a fallen
tree to the desired log length.
First cut on pressure side of log
BUCKING WITHOUT A
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.
SUPPORT
S Overcut through 1/3 of the diameter of the
log.
10
S Roll the log over and finish with a second
overcut.
S Give special attention to logs under strain
to prevent the saw from pinching. Make
the first cut on the pressure side to relieve
the stress on the log.
IMPORTANT POINTS
S Watch out for springpoles. Use extreme
caution when cutting small size limbs. Slen-
der material may catch the saw chain and be
whipped toward you or pull you off balance.
S Be alert for springback. Watch out for
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.
BUCKING USING A LOG OR SUP-
PORT STAND
S Remember your first cut is always on the
pressure side of the log.
S Your first cut should extend 1/3 of the
diameter of the log.
S Keep a clear work area. Frequently clear
branches out of the way to avoid tripping
over them.
S Finish with your second cut.
Using a log for support
nd
LIMBING
S Always limb atreeafter it is cut down. Only
then can limbing be done safely and prop-
erly.
2
Cut
S Leave the larger limbs underneath the
felled tree to support the tree as you work.
S Start at base of the felled tree and work to-
ward the top, cutting branches and limbs.
Remove small limbs with one cut.
S Keep the tree between you and the chain
as much as possible.
st
1
Cut
Cut
st
1
S Remove larger, supporting branches with
the cuttingtechniques described in BUCK-
ING WITHOUT A SUPPORT.
S Always use an overcut to cut small and
freely hanging limbs. Undercutting could
cause limbs to fall and pinch saw.
nd
PRUNING
2
Cut
Using a support stand
WARNING: Limit pruning to limbs
shoulder height or below. Do not cut if
branches are higher than your shoulder. Get
a professional to do the job.
nd
2
Cut
S Make your fist cut 1/3 of the way through
the bottom of the limb.
S Next make a 2nd cut all the way through
the limb. Then cut a third overcut leaving
a1 to 2inchcollar fromthetrunk of thetree.
st
1
Cut
Cut
Cut
st
Second cut
Third cut
1
nd
2
Collar
First cut
Pruning technique
LIMBING AND PRUNING
WARNING: Be alert for and guard
against kickback. Do not allow the moving
chain to contact any other branched 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, plat-
forms, a log, or in any position which can cause
you to lose your balance or control of the saw.
11
SERVICE AND ADJUSTMENTS
sary to serviceyour 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:
WARNING: Disconnect the spark
plug before performing maintenance, except
for carburetor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
Authorized Service Dealer.
S Move ON/STOP switch to the STOP posi-
tion.
S Loosen and remove chain brake nuts and
chain brake. Remove bar and chain from
saw.
MAINTENANCE SCHEDULE
Check:
Fuel mixture level . . . . Before each use
Bar lubrication . . . . . . . Before each use
Chain tension . . . . . . . Before each use
Chain sharpness . . . . Before each use
For damaged parts . . Before each use
For loose caps . . . . . . Before each use
For loose fasteners . . . Before each use
For loose parts . . . . . . Before each use
Inspect and Clean:
S Clean the oil holes and bar groove after each
5 hours of operation.
Remove Sawdust From
Guide Bar Groove
Oil Holes
Bar . . . . . . . . . . . . . . . . Before each use
Complete saw . . . . . . . After each use
Air filter . . . . . . . . . . . . . Every 5 hours*
Chain brake . . . . . . . . Every 5 hours*
Spark arresting screen
S Burring of guide bar rails is a normal
process of rail wear. Remove these burrs
with a flat file.
S When rail top is uneven, use a flat file to re-
store square edges and sides.
and muffler . . . . . . . . . Every 25 hours*
Replace spark plug . Yearly
Replace fuel filter . . . Yearly
File Rail Edges
and Sides
Square
* Hours of Operation
AIR FILTER
Worn Groove
Correct Groove
CAUTION: Do not clean filter in gaso-
line or other flammable solvent to avoid
creating a fire hazard or producing harmful
evaporative emissions.
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.
Cleaning the air filter:
A dirty air filter decreases engine perform-
ance and increases fuel consumption and
harmful emissions. Always clean after every
5 hours of operation.
SPARK PLUG
The spark plug should be replaced each
year to ensure the engine starts easier and
runs better. Ignition timing is fixed and non-
adjustable.
1. Clean the cover and the area around it to
keep dirt and sawdust from falling into
the carburetor chamber when the cover
is removed.
2. Remove the parts as illustrated below.
3. Wash the filter in soap and water. Rinse
in clean cool water. Air dry completely
before reinstalling.
4. Add a few drops of oil to the filter;
squeeze filter to distribute oil.
5. Reinstall parts.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder and
discard.
5. Replace with Champion RCJ--7Y spark
plug and tighten securely with a 19 mm
socket wrench. Spark plug gap should
be 0,5 mm.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and
screws. Tighten securely.
Cylinder
Air
over
3
crews
Cylinder
Cover
Screws
Spark
Plug Boot
ylinder
over
BAR MAINTENANCE
Spark
Plug
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-
12
CHAIN SHARPENING
STORAGE
Chain sharpening is a complicated task that
requires special tools. We recommend that
you refer chain sharpening to a professional
chain sharpener.
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 withall guards in place. Position so
that any sharp object cannot accidentally
cause injury to passersby. Store the unit out
of reach of children.
CARBURETOR ADJUSTMENTS
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
S Before storing, drain all fuel from the unit.
Start engine and allow to run until it stops.
S 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.
S Donot store theunit or fuel in a closedarea
where fuel vapors can reach sparks or an
openflame from hot water heaters, electric
motors or switches, furnaces, etc.
Allow engine to idle. If the chain moves, idle
is too fast. If the enginestalls, idle is tooslow.
Adjust 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 speed screw (T) clockwise to in-
crease engine speed.
S Store in a dry area out of the reach of chil-
dren.
CAUTION: It is important to prevent
gum deposits from forming in essential fuel
system parts such as the carburetor, fuel fil-
ter, fuel hose, or fuel tank during storage. Al-
cohol blended fuels (called gasohol or using
ethanol or methanol) can attract moisture
which leads to fuel mixture separation and
formation of acids during storage. Acidic gas
can damage the engine.
S Turn idle speed screw (T) counterclock-
wise to decrease engine speed.
TROUBLESHOOTING TABLE
WARNING: Always stop unit and disconnect spark plug before performing all of
the recommended remedies below except remedies that require operation of the unit.
TROUBLE
CAUSE
REMEDY
Engine will not
start or will run
only a few
seconds after
starting.
1. Move ignition switch to ON.
2. See “Difficult Starting” in
Operation Section.
1. Ignition switch off.
2. Engine flooded.
3. Fill tank with correct fuel mixture.
4. Install new spark plug.
3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
5. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
1. Idle speed requires
adjustment.
2. Carburetor requires
adjustment.
Engine will
not idle
properly.
1. See “Carburetor Adjustment” in the
Service and Adjustments Section.
2. Contact an authorized service dealer.
1. Clean or replace air filter.
Engine will not
accelerate,
lacks power,
or dies under
a load.
1. Air filter dirty.
2. Clean or replace plug and regap.
3. Disengage chain brake.
2. Spark plug fouled.
3. Chain brake engaged.
4. Carburetor requires
adjustment.
4. Contact an authorized service dealer.
Engine
1. Too much oil mixed with
gasoline.
1. Empty fuel tank and refill with
correct fuel mixture.
smokes
excessively.
1. Idle speed requires
adjustment.
2. Clutch requires repair.
1. See “Carburetor Adjustment” in the
Service and Adjustments Section.
2. Contact an authorized service dealer.
Chain moves
at idle speed.
13
DECLARATION OF CONFORMITY
relating to 2000/14/EC
EC Declaration of Conformity relating to 2000/14/EC
We, Electrolux Home Products, Inc., Texarkana, TX, 75501, USA, Tél. : +1 903 223
4100, declare under sole responsibility that the Jonsered model CS2138 chain saw was
assessed in accordance with Annex V of the DIRECTIVE and from serial numbers
2004--205(N or D)00001 and onwards, conforms to the provisions of the DIRECTIVE. The
net power is 1,8 kW. The measured sound power is 102 dB and the guaranteed sound
power is 118 dB.
Texarkana 04--07--23
Michael S. Bounds, Director
Product Safety and Standards
DECLARATION OF CONFORMITY
relating to 98/37/EC
EC Declaration of Conformity (Directive 98/37/EC, Annex II, A) (Only applies to
Europe)
We, Electrolux Home Products, Inc., Texarkana, TX 75501, USA, Tel: +1 903 223
4100, declare under sole responsibility that Jonsered model CS2138 chain saw from
serial numbers 2004--205(N or D)00001 and onwards, follows the provisions of the
DIRECTIVES: 98/37/EC (machinery) and 89/336/EEC (electromagnetic compatibility),
including amendments and is in conformity with the following standards: ISO
11681 -1:2004, EN ISO 12100-1:2003, EN ISO 12100 -2:2003 and CISPR 12.
The supplied Chain Saw conforms with the sample that underwent the EC type
approval.
Notified body, 0404 the Swedish Machinery Testing Institute, Fyrisborgsgatan 3
S--754 50 Uppsala, Sweden, has carried out EC type approval. The certificate(s) are
numbered: 404/96/398.
Texarkana 04--07--23
Michael S. Bounds, Director
Safety and Standards
14
TECHNICAL DATA SHEET
CS2138
Noise levels
Engine
CS2138
42
3
Equivalent (see note 1) noise
pressure level at operator’s ear,
measured according to relevant
international standards, dB(A)
Equivalent (see note 1) noise
power level, measured
Cylinder volume, cm
Stroke, mm
32
Idle speed, rpm
3,000
101
Recommended max.
speed, unloaded, rpm
Power, kW
13,000
1,8
according to relevant
international standards, dB(A)
95
Ignition system
Manufacturer
Type of ignition system
Spark plug
Electrode gap, mm
Walbro
CD
Champion
0,5
Vibration levels
(see note 2)
2
2
Front handle, m/s
5,5
8,5
Rear handle, m/s
Fuel and lubrication system
Chain/bar
Manufacturer
Walbro
Standard bar length, in/cm
Recommended bar lengths,
in/cm
Usable cutting length, in/cm 13,5/35 15,5/40
Chain speed at maximum
power, m/sec
Pitch, inches
14/36 16/41
14/36 16/41
Carburetor type
Fuel capacity, litre
Oil pump capacity at
8500 rpm, ml/min
Oil capacity, litre
Type of oil pump
WT--662
0,38
4 -- 8
0,2
Automatic
18,5
18,5
0,375 0,375
Thickness of drive link, mm
No. of teeth on drive sprocket
1,27
6
1,27
6
Weight
Without bar and chain, kg 4,7
Note 1: Equivalent noise level is, according to
ISO 7182 and ISO 9207, calculated as the
time--weighted energy total for noise levels un-
der various working conditions with the follow-
ing time distribution, 1/3 idle, 1/3 full load, 1/3
full speed.
BAR
CHAIN
Length
Inches
14
Pitch
Max
Inches Tip Radius
0,375
0,375
7T Oregon 91VG
7T Oregon 91VG
16
Note2: Equivalent vibration level is, according
to ISO 7505, calculated as the time--weighted
energy total for vibration levels under various
working conditions with the following time dis-
tribution: 1/3 idle, 1/3 full load, 1/3 full speed.
in/cm :dl
91VG
YEAR OF CONSTRUCTION:
2006
MANUFACTURER’S ADDRESS: Jonsered
SE--561 82 Huskvarna
Huskvarna, Sweden
15
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