Page 1
OPERATOR’S MANUAL
CHAIN SAW
ECHO POWER EQUIPMENT (CANADA)
401 Consortium Court,
London, Ontario
N6E 2S8
ECHO
CS-510
CAUTION
Read Rules for Safe Operation
and Instruction Carefully
X750-001 74 0
X750 319-450 0
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RULES FOR SAFE OPERATION
1. Fatigue causes carelessness. Be more
cautious before rest periods and before
the end of your shift.
2. Personal protective clothing required by
your safety organizations, government
regulations, or your employer should be
used; otherwise , sung fitting clothing, protective eye wear, saf ety footwear and hand,
leg and hearing protection should be worn.
Note: Personal protective clothing
should meet the requirements
of applicable Standards.
3. Before fuelling, servicing or transporting
your chain saw switch off the engine. To
help prevent fire, restart your chain saw
at least 3 m (10 ft) from the fuelling area.
4. When using a chain saw a fire extinguisher
should be available.
5. When felling, keep at least 2 tree lengths
between yourself and your f ellow workers.
6. Plan your work; assure yourself of an obstacle-free work area and, in the case of
felling, of an escape path from the falling
tree.
7. Follow instructions in your operator’s
manual for starting the chain saw and control the chain saw with a film grip on both
handles when it is in operation. A keep
handles dry , clean and free of oil. A chain
saw should never be carried with the engine running.
8. When transporting your chain saw , use the
appropriate transportation covers that
should be available for the guide bar and
saw chain.
9. Never operate a chain saw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure
that the saw chain stops moving when the
throttle control trigger is released. Never
adjust the guide bar or saw chain when
the engine operating.
10.Beware of carton monoxide poisoning. Operate the chain saw in well-ventilated areas only.
11.Do not attempt a pruning or liming operation in a standing tree unless specifically
trained to do so.
12. Guard against kickback. Kickback is the
upward motion of the guide bar , which occurs when the saw chain, at the nose of
the guide bar, contact an object. Kic kback
can lead to dangerous loss of the chain
saw.
TO AVOID KICKBA CK:
(a) Contact of the guide bar tip with any
object should be avoided.
(b) Tip contact may cause the guide bar
to move suddenly upward and backward which may cause serious injury.
(c) Always use two hands when operat-
ing the chain saw .
(d) Use a firm grip, thumbs and fingers
encircling the handles.
(e) Don’t overreach.
(f) Avoid cutting above shoulder height.
(g) Follow the manufacture’s instructions
for sharpening and maintenance of the
saw chain.
13.When boring with the chain saw, the initial cut should be introduced with the lower
part of the nose (tip) until the hole is sufficiently large so as to introduce the entire
nose (tip) of the guide bar. This manoeuve
should reduce the danger of kickback.
14. A chain saw is intended for two-handed
use. Serious injury to the operator, helpers and/or bystanders may result from
one-handed operation.
CAUTION
A. Allow your chain saw to cool before refu-
eling, and do not smoke.
B. Do not allow other persons or animals
close to running chain saw or close to
where a tree is being felled.
C. Use extreme caution when cutting small
size brush and saplings because slender
material may catch the saw chain and be
whipped toward you.
D. When cutting a limb that is under tension
is alert for spring-back.
CS-510
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CONTENTS
RULES FOR SAFE OPERATION ................................................................................. 2
NOMENCLATURE HAVE PARTS ................................................................................ 4
OPERATOR SAFETY ................................................................................................... 6
CORRECT USE OF CHAIN BRAKE............................................................................. 7
PREPARATION FOR USE............................................................................................ 8
FUEL AND LUBRICANT ............................................................................................... 9
OPERATION ...............................................................................................................10
CUTTING INSTRUCTION........................................................................................... 12
MAINTENANCE AND CARE....................................................................................... 17
SETTING THE SAW CHAIN ....................................................................................... 20
CHAIN AND GUIDE BAR COMBINATION ................................................................. 22
SERVICE GUIDE ........................................................................................................ 23
TROUBLE SHOOTING ............................................................................................... 24
STORAGE AFTER USE.............................................................................................. 25
TECHNICAL DATA ..................................................................................................... 25
This spark ignition system complies with Canadian ICES-002.
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CS-510
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NOMENCLATURE HAVE PARTS
7
8
6
5
9
10
11
4
14
13
12
15
21
20
19
16
17
1
18
2
3
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NOMENCLATURE HAVE PARTS
1. Operator’s manual - Included with unit.
Read before operation and keep for future
reference to learn proper, safe operating
techniques.
2. Installation and use KICK GUARD Describe how to install the kick guard and
operate the saw with kick guard.
3. Safety manual - Describe operating and safety
instructions for this chain saw.
4. Front hand guard - Guard between the front
handle and the saw chain for protecting the
hand from injuries and aiding in control of the
chain saw if the hand slips off the handle.
This guard is used to activate the chain
brake which is to stop the saw chain rotation.
5. Air cleaner cover - Covers air filter.
6. Rear handle (for the right hand) - Support
handle located towards the rear of the
engine housing.
7. Choke control knob - Device for enriching the
fuel/air mixture in the carburettor to aid cold
starting.
8. Rear hand guard - Extension on the lower part
of the rear handle for protecting the hand
from the chain if it breaks or degrooves.
9. Clutch cover - Protective cover to the guide
bar, saw chain, clutch and sprocket when the
chain saw in use.
10. Chain catcher - A safety projection designed
to reduce the risk of the operator’s right hand
from being hit by a chain which has broken
or derailed from the guide bar during cutting.
11. Guide bar - The part that supports and guide
the saw chain.
12. Bar tip guard - Anti-kickback device attached
on the bar nose.
13. Saw chain - Chain, serving as a cutting tool.
14. Spiked bumper - Device, fitted in front of the
guide bar mounting point, acting as a pivot
when in contact with a tree or log.
15. Front handle ( for the left hand ) - Support
handle located at the front of the engine
housing.
16. Oil tank cap - For closing the oil tank.
17. Fuel tank cap - For closing the fuel tank.
18. Throttle trigger - Device activated by the
operator’s finger, for controlling the engine
speed.
19. Throttle trigger lockout - A safety lever which
must be depressed before the throttle trigger
can be activated in order to prevents the
accidental operation of the throttle trigger.
20. Ignition switch - Device for connecting and
disconnecting the ignition system and thus
allowing the engine to be started or stopped.
21. Starter handle - Pull handle slowly until starter
engages then quickly and firmly. When
engine starts, return handle slowly.
DO NOT let handle snap back or damage to
unit will occur.
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OPERATOR SAFETY
HOT HUMID WEATHER
• Heavy protective clothing can increase
operator fatigue which may lead to heat
stroke.
Schedule heavy work for early morning, or late
afternoon hours when temperatures are cooler.
VIBRATION AND COLD
• It is believed that a condition called
Raynaud’s Phenomenon, which affects the
fingers of certain individuals, may be brought
about by exposure to vibration and cold.
Exposure to vibration and cold may cause
tingling and burning followed by loss of color and
numbness in the fingers.
The following precautions are strongly
recommended because the minimum exposure
which might trigger the ailment is unknown.
• Keep your body warm, especially the head and
neck, feet and ankles and hands and wrists.
• Maintain good blood circulation by performing
vigorous arm exercises during frequent work
breaks and also by not smoking.
• Limit the number of hours of operation.
Try to fill each day with jobs where operating the
chain saw, or other hand-held power equipment
is not required.
• If you experience discomfort redness and
swelling of the fingers, followed by whitening and
loss of feeling, consult your physician before
further exposing yourself to cold and vibration.
REPETITIVE STRESS INJURY
• It is believed that overusing the muscles and
tendons of the finger, hands, arms and
shoulders may cause soreness, swelling,
numbness, weakness and extreme pain to the
areas just mentioned.
Certain repetitive hand activities may put you at
a high risk for developing a repetitive stress
injury (RSI).
• An extreme RSI condition is Carpal Tunnel
Syndrome (CTS) which could occur when your
wrist swells and squeezes a vital nerve that runs
through the area. Some believe that prolonged
exposure to vibration may contribute to CTS.
CTS can cause severe pain for months or even
years.
To reduce the risk of RSI/CTS, do the following:
• Avoid using your wrist in a bent, extended or
twisted position.
• Take periodic breaks to minimize repetition and
rest your hands.
• Reduce the speed and force in which you do the
repetitive movement.
• Do exercises to strengthen hand and arm
muscles.
• See a doctor if you feet tingling, numbness or
pain in your fingers, hands, wrists or arms.
The sooner RSI/CTS is diagnosed, the more
likely permanent nerve and muscle damage can
be prevented.
EYE AND HEARING PROTECTION
• Wear eye protection goggles that meet ANSI
Z 87.1 requirements.
Goggles meeting the requirements have the
mark “Z 87” stamped on them.
• Wear hearing protection.
If this guideline is not followed, hearing loss can
occur.
The Occupational Health and Safety Act of 1970
(OHSA) requires the use of hearing protection if
you use the unit more than two hours per day.
ECHO recommends wearing hearing protection
at all times.
WEAR PROPER CLOTHING
• Snug fitting durable clothing should be worn.
Pants should have long legs, DO NOT WEAR
SHORTS.
Do not wear loose fitting clothing, scarves,
neckties, jewelry or any item that may become
tangled in surrounding growth or the trimmer
itself.
• Wear shoes with non-skid soles.
DO NOT wear open toed shoes or operate unit
barefooted.
• Wear no-slip, heavy duty work gloves to improve
your grip on the trimmer handles.
The gloves also help reduce the transmission of
machine vibration to your hands.
Special vibration reducing gloves such as
ECHO’s PRO-COMFORT are designed to
provide additional comfort.
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SPARK ARRESTOR MUFFLER
• The spark arrestor muffler controls the exhaust
noise and prevents hot, glowing particles of
carbon from leaving the muffler.
Make sure the spark arrestor screen is in good
repair and properly seated in the muffler.
• Certain internal combustion engines operated on
forest, brush, and/or grass-covered areas in the
states of Washington, Oregon, Idaho, California
Minnesota, New Jersey and Maine, are required
to be equipped with a spark arrestor.
CORRECT USE OF CHAIN BRAKE
This requirement also applies to all U.S. Forest
Service lands.
In some of these areas, the spark arrestor
system must be certified per USDA Forest
Service Regulation SAE J 335.
Check with your local or state authorities for
specific regulations in your area.
Failure to follow these requirements is a violation
of the law.
Chain moving downward at impact
Liner kickback
kickback
Rotational kickback
Reduced radius
belongs on top
Rotational kickback
Pinch
WARNING DANGER
KICKBACK SAFETY PRECAUTION FOR
CHAIN SAW USERS KICKBACK MAY OCCUR
WHEN THE NOSE OR TIP OF THE GUIDE
BAR TOUCHES AN OBJECT OR WHEN THE
WOOD CLOSES IN AND PINCHES THE SAW
CHAIN IN THE CUT.
The installation of a chain brake may be mandatory
by law or as stipulated by insurance regulations in
your area of operation.
You should inquire through local government
offices, your employer or your local dealer to
ensure that your chain saw conforms to the
required safety standard.
ECHO chain brakes have been designed and
tested to comply with international safety standards
as follows.
Canada : CSA Standard Z 62.1,
Standard Z 62.3 CHAIN SAWS
USA : ANSI Standard B175.1-2000
Safety Requirement for chain saws
WARNING DANGER
CSA Z 62.1 STIPULATES THAT THE BRAKE
SHALL STOP THE CHAIN 0.12 SECONDS AT
AN ENGINE SPEED OF 13,500 r/min.
IT IS THE RESPONSIBILITY OF THE OWNER /
OPERATOR TO ENSURE THAT THE BRAKE
IS SERVICED, ADJUSTED AND TESTED
STRICTLY IN ACCORDANCE WITH THE
INSTRUCTIONS AS DETAILED HEREIN IN
ORDER TO ENSURE THAT THE BRAKE
PERFORMANCE IS MAINTAINED IN
COMPLIANCE WITH THE STANDARD
CSA Z 62.1.
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Clutch cover
PREPARATION FOR USE
CAUTION
• All adjustment, should be made cold.
• Always wear glov es when working on chain.
MOUNTING GUIDE BAR AND
Bar hole
CHAIN
• Unscrew two nuts and remov e clutch co v er .
• Install the spiked bumper on the front of
machine. (Use two bolts 5×12)
Spiked bumper
Adjusting screw
Proper tension
Improper tension
Two bolts 5×12
• Mount bar and slide toward clutch to make saw
chain installation easier.
• Install saw chain as shown.
(Ensure cutters are pointing in the right direction)
• Install the clutch cover tighten nuts finger tight.
Ensure that chain tension adjuster fits into bar
hole.
NOTE
Ensure that the chain is installed with the cutters
directed forward on the top of the bar.
ADJUSTMENT, CHAIN TENSION
• Hold the bar nose up and turn the adjuster
clockwise until the chain fits snugly against the
underside of the bar.
• Tighten both nuts with the bar nose held up.
• Start the engine and run at low speed.
Stop and readjust if necessary .
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FUEL AND LUBRICANT
Oil
Gasoline
(US)
GAS
Gal
1
2
5
1
50
50 : 1
OIL GAS
Fl oz L mL
2.6
5.1
12.8
(METRIC)
4
8
20
OIL
80
160
400
FUEL STATEMENT
GASOLINE-Use 89 Octane [
gasohol known to be good quality.
Gasohol may contain maximum 10% eth yl (grain)
alcohol or 15% MTBE (methylteriary-butyl ether).
Gasohol containing methyl (wood) alcohol is not
approved.
TWO-STROKE OIL - Use 50 : 1 two-stroke ECHO
oil only .
Engine problems due to inadequate lubrication
caused by failure to use 50 : 1 ECHO oil will void
the warranty on your ECHO product.
MIXING - Mix oil and gasoline/gasohol according to
the instructions on the ECHO oil label.
IMPORTANT
Stored fuel ages.
Do not mix more fuel than you expect to use in
thirty (30) days, ninety (90) days when a fuel
stabilizer is added.
Stored two-stroke fuel may separate.
ALWAYS shake fuel container thoroughly before
each use.
R+M
] gasoline or
2
CAP INDICATION
Fuel/oil tanks are indicated by the following
illustrations
OIL TANK CAP
FUEL TANK CAP
CAUTION
Whenever opening up the fuel tank, always
loosen the cap very slowly and wait for the
tank pressure to be equalized before removing
the cap.
CHAIN LUBRICANT
Proper lubrication of the chain while in operation
reduces friction between the chain and the guide
bar to a minimum and assures a longer service life.
• Use ECHO bar and chain oil of high quality
for this purpose.
• Do not use used or reclaimed oil to avoid
various oiler problems.
• When refueling, also refill chain oil.
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Chain brake
Stop switch
Start
OPERATION
WHEN THE ENGINE IS COLD
• Fill the fuel tank with fuel.
• Fill the chain oil tank with lubricant.
• Press hand guard forward. (Chain brake
ACTIVATED position)
• Turn ignition switch upside. (“R UN” position)
• Pull choke control knob all the way out. (Choke
position)
CAUTION
Make sure bar and chain are free from any
obstruction when starting the saw.
• Make sure guide bar and saw chain are not
touching anything when starting the saw.
• Securely hold the saw as shown and pull starter
handle several times until first firing sound.
Choke
Open
• Push choke control knob all the way in.
• Pull starter handle to start the engine.
• When engine starts, immediately pull throttle
trigger up to release the latch, then release
throttle trigger.
CAUTION
The chain will attempt to rotate when engine is
started with throttle latch engaged.
After engine starts, release throttle trigger to idle
engine, otherwise brake damage may occur.
Never use the latch for cutting.
Use it only when starting the engine.
WHEN THE ENGINE IS WARM
• Confirm fuel and chain oil in the tanks.
• Press hand guard forward. (Chain brake
ACTIVATED position)
• Turn ignition switch upside. (“R UN” position)
• Make sure guide bar and saw chain are not
touching anything when starting the saw.
• Securely hold the saw as shown and pull
starter handle.
• Choke may be used if necessary but after first
firing sound, pull throttle trigger a little to release
throttle locking and choke.
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Stop
RUNNING
• When engine starts, keep idling for a few
minutes.
• Pull throttle trigger gradually and increase
revolution of the engine .
• The chain starts running when the engine
reaches to 3,800 r/min approximately .
• Confirm proper acceleration and lubrication of
chain and bar.
STOPPING
• Release throttle trigger and turn switch down.
(“STOP” position)
NOTE
When engine does not stop, pull choke control
knob out fully to stop engine. Check and repair
stop switch before starting the engine again.
CHECKING CHAIN TENSION
• Chain tension should be checked frequently
during work and corrected of necessary.
• Tension the chain as tight as possible , but so it
can still be pulled easily along the bar by hand.
CAUTION
• Do not operate with a loose chain.
CHAIN LUBRICATION TEST
Hold the chain just above a dry surface and open
the throttle to half speed for 30 seconds.
A thin line of “ thrown ” oil should be seen on the
dry surface.
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CUTTING INSTRUCTION
GENERAL
NOTE
Read the ECHO “CHAIN SAW SAFETY
MANUAL” included with your chain saw for
additional cutting and safety instructions.
In all circumstances the operation of the chain saw
is a one-man job.
It is difficult at times to take care for your own
safety, so don’t assume the responsibility f or a
helper as well.
After you hav e learned the basic techniques of
using the saw, your best aid will be your own good
common sense.
The accepted way to hold the sa w is to stand to the
left of the saw with your left hand on the front
handlebar and your right hand on the rear handle
so you can operate the throttle trigger with your
right index finger.
Before attempting to f ell a tree, cut some small logs
or limbs.
Become thoroughly familiar with the controls and
the responses of the saw.
Kickback
Start the engine, see that it is running properly.
Squeeze the trigger to open the throttle wide open
and start the cut. If the chain is properly sharpened,
the cutting should be relatively effortless.
It is not necessary to press down hard to make the
saw cut.
Pushing the saw too hard will slow the engine and
cutting will actually be more difficult.
Some material may adversely aff ect the housings
of your ECHO chain saw.
(Example palm Tree Acid, fertilizer etc.)
To a void housing deterioration, carefully remov e all
packed sawdust around clutch and guide bar area
and wash with water .
CAUTION
Do not let the tip of the bar touch anything while
the engine is running.
At cutting speed the chain is moving, at a high
rate of speed.
Should the tip contact a limb or log while the
chain is moving, the tip will be pushed upward
with considerable f orce.
This is known as kick-back. Avoid it!
CS-510
SEE OPERATOR’S MANUAL INSERT FOR
INSTALLATION AND USE WITH THE KICK
GUARD .
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Direction
of fall
45°
FALLING THE TREE
A falling tree can seriously damage anything it may
hit - a car, a house, a fence, a power line , or
another tree.
There are ways to mak e a tree fall where you want
it, so first decide where that is!
Before cutting, clear the area around the tree.
You will need good footing while working and you
should be able to work the saw without hitting any
obstacles.
Next, select a path of retreat.
When the tree begins to fall you should retreat
awa y from the direction of f all at a 45-degree angle
to avoid the trunk kicking bac k over the stump.
Direction of fall
5 cm (2inch)
First cut
Notch
Second cut
One-third tree
diameter
1
Hinge
Felling cut
5 cm
(2inch)
3
2
Begin the cut on the side to which the tree is to fall.
Cut a notch about 1/3 of the way into the tree. The
position of this notch is important since the tree will
try to fall “into” the notch.
The felling out is made on the side opposite the
notch and at a level about 5 cm (2inch) abo v e the
bottom of the notch.
Do not try to cut through to the notch with the felling
cut.
The remaining wood between the notch cut and
felling cut [about 5 cm (2inch)] will act as a hinge
when the tree falls, guiding it in the desired
direction.
When the tree starts to fall, kill the engine, place
the saw on the ground and make y our retreat
quickly.
To f ell big trees with a diameter e xceeding twice the
bar length, start the notching cuts from one side
and draw the saw through to the other side of the
notch.
Start the back cut on one side of the tree, pivoting
the saw through to form the desired hinge on that
side.
Then remove the saw for the second cut. Insert the
saw in the first cut, very carefully so as not to
cause kickback.
The final cut is made by drawing the saw forward in
the cut to reach the hinge.
LIMBING
Limbing a fallen tree is much the same as buc king.
Never limb on the tree that y ou are standing.
When limbing, caution is the word.
Be careful of the tip touching other limbs.
Always use both hands.
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CAUTION
Wear suitable hearing protective device such as
earmuffs or earplugs to protect against
objectionable or uncomfortable loud noises.
Don’t cut with the saw overhead or the bar in a
vertical position. If the saw should kic k bac k, you
may not hav e well enough control to pre v ent
possible injury .
BUCKING
Bucking is the sawing of a log or fallen tree into
smaller pieces.
There are a few basic rules which apply to all
bucking operations.
Keep both hands on the handles at all times.
Support logs if possible.
When cutting on a slope or hillside, always stand
uphill.
Keep in mind that the wood is hea vy and that it will
bend and pinch the saw if improperly supported.
The trunk will weaken at the point where you make
the cut unless the tree is lying on perfectly flat
ground or supported as shown.
If you make the cut with the tree on the ground,
don’t let the saw’ s chain dig into the earth; it is
harmful for the saw, and y ou stand a good chance
of being struck by flying debris.
To cut the trunk, use the buc king and two-cut
sequence shown.
The first cut should be no deeper than one-third the
trunk diameter.
Uphill position
Finish cut
First cut
WARNING DANGER
• KICKBACK IS GENERATED WHEN THE
ROTATION OF THE CHAIN IS ARRESTED
FOR SOME REASON.
THE MOST DANGEROUS EFFECT OF THIS
ACTION OCCURS WHEN THE NOSE OF
THE BAR CONTA CTS ANO THER OBJECT,
THE CHAIN IS MOMENT ARILY STOPPED
AND ALL THE ENERGY OF ENGINE
THROWS THE BAR UPWARDS AND
BA CKWARDS TO WARDS THE OPERATOR.
• THE CHAIN SAW INDUSTRY AND
GOVERNMENT A GENCIES HAVE
A TTEMPTED TO PRESCRIBE VARIOUS
SAFETY DEVICES, BUT THE BEST
PROTECTION IS TO AVOID KICKB A CK.
• COMPL Y WITH THE SAFETY
PRECAUTIONS AS LISTED ON PAGE 2 OF
THIS MANUAL AND SAFETY MANUAL.
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Kickback motion
Kickback
CHAIN BRAKE OPERATION
• Set the lever in the released position bef ore
starting to cut.
• If the brake is tripped by kick back reaction, the
chain will stop immediately release the throttle to
avoid possible damage prevent to the engine or
clutch.
• Do not attempt to operate the engine with the
brake engaged.
TESTING THE BRAKE
• Start the engine on a solid level surface and run
at a fast idle until warm.
• Hold the saw firmly by the handles and
accelerate the engine to a fast idle.
• Slowly operate the chain brake le v er while
holding the saw firmly on the ground.
When the brake lev er trips, the chain should
stop.
Immediately release the throttle trigger.
CAUTION
Chain brake function
When the lever is pushed forward, chain brake
instantly work to stop the chain.
Chain brake release
When the lever is fully pulled, toward the
operator, brake is released.
Do not allow the saw to tip forward in order to
avoid damage to the chain.
If the chain does not stop immediately, return the
saw to your authorized ECHO deaf er f or repair .
NOTE
• For practice, while cutting a small tree, push
the lever f orw ard to engage the brak e.
• At all the time, confirm whether the brake
works properly before each work.
• If the chain brake is clogged with wood chips,
function of the brake deteriorates a little.
Always keep the de vice clean.
• Do not increase engine revolution while the
chain brake is engaged.
• Chain brake is used in emergencies.
Do not use it unless absolutely necessary .
• When in use of throttle lock at starting, keep
the chain brake position.
And after starting the engine, release the
brake immediately .
• Never test the brak e in an area where
gasoline fumes are present.
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Page 16
END OF THE GUIDE BAR may be placed at
the height of about 35 cm.
35 cm
Rear handle should be gripped lightly with
the right handle.
AUTOMATIC CHAIN BRAKE
The automatic chain brake stops the operation
of the saw chain in such a manner that kick-back
action produced at the end of the guide bar
automatically actuates the chain brake.
To make sure that the automatic chain brake
operates properly, proceed as follows:
1) Stop the engine of the chain saw.
2) Operate the front and rear handles with
hands (grip them lightly), so that the guide bar
may be placed at the height of about 35 cm as
shown in Fig.
3) Softly detach the left hand from the front handle,
and touch the end of the guide bar against the
wood or the like placed below so that the
machine receives an impact.
(* At this time the rear handle should be gripped
lightly with right hand.)
4) The impact is propagated to the brake lever,
which actuates the chain brake.
(PRECA UTION)
When checking the operation of the automatic
chain brake, use a soft surf ace substance like
wood to provide the impact so the chain is not
damaged.
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MAINTENANCE AND CARE
T ; Idle adjusting screw
H ; High speed needle
L ; Low speed needle
CARBURETTOR ADJUSTMENT
Every unit is run at the factory and the carburettor
is set in compliance with California Emission
Regulations. In addition, the carburetor is equipped
with “H” (High Speed Needle) and “L” (Low Speed
Needle) needle adjustment limited that prevent
settings outside acceptable limits.
1. Before adjusting carburettor clean or replace air
filter and muffler, “Spark Arrestor Screen”.
2. Make sure the cutting attachments such as bar
and chain are properly adjusted.
3. Start engine and run several minutes to bring to
operating temperature. Flash choke twice during
warm-up to clear any air from the fuel system.
4. Stop engine.
Turn “H” speed needle CCW to stop.
Turn “L” speed needle midway between full CW
stop and CCW stop.
5. Idle Speed Adjustment:
• Start engine, turn “Idle” speed adjustment
screw CW (clockwise) until the saw chain
begins to turn, then turn screw out CCW
(counter clockwise) until the saw chain stops
turning.
Turn screw out, CCW, an additional 1/4 turn.
WARNING DANGER
CUTTING ATTACHMENT MUST NOT TURN
OR MOVE WHEN UNIT IS IDLING.
6. Accelerate to full throttle for 2 - 3 seconds to
clear any excess fuel in the engine, then return
to idle.
Accelerate engine to full throttle to check for
smooth transition from idle to high speed.
If engine hesitates turn “L” needle CCW 1/8 turn
and repeat acceleration.
Continue adjustment until smooth acceleration
results.
7. Check idle speed and reset if necessary as
described in item 5. If a tachometer is available
idle speed should be set as specified in the
Instruction Manual.
CAUTION
When starting, idling adjustment speed should
be adjusted not to rotate the saw chain.
Correct idle speed is adjusted 2,900 to 3,100
r/min.
Or 1/4 turn counter clockwise from the point the
chain stops moving.
When there is some trouble with the carburettor,
refer to your distributor or dealer.
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CS-510
Page 18
Spark plug
Cylinder cover
Cleaner cover knob
Air cleaner cover
Air filter cover
AIR FILTER
• Check before every use.
• Loosen cleaner cover knob and remove air
cleaner cover and filter .
• Brush off dust lightly, or clean with compressed
air, or replace the air filter.
• Reinstall filter and cover.
Air filter
CYLINDER FINS
• Check periodically .
• Clogged fins will result in poor engine cooling.
• Remove dirt and dust from between fins to let
cooling air pass easily.
0.65 mm (0.026 in)
→→
→
→→
←←
←
←←
SPARK PLUG
• Check periodically .
• The standard spark gap is 0.65 mm (0.026 in).
• Correct the spark gap if it is wider or narrower
than the standard gap.
• Fastening torque : 14.2 to 15.2 N • m
(125 to 135 in lb).
CS-510
18
Page 19
FUEL STRAINER
• Check periodically .
• Do not allow dust to enter fuel tank.
• Clogged strainer will cause difficulty in starting
engine or abnormalities in engine performance.
• Pull the fuel strainer out through fuel inlet port
with a piece of steel wire or the like.
• When the strainer is dirty, replace it.
• When the inside of the fuel tank is dirty, rinsing
the tank out with gasoline can clean it.
Oil strainer
Oil cap
Adjusting screw
Fuel cap
Decrease Increase
Fuel strainer
OIL STRAINER
• Check periodically .
• Do not allow dust to enter into oil tank.
• Clogged oil strainer will affect the normal
lubricating system.
• Pull it out through oil filling hole with a piece of
steel wire or the like.
• If the strainer is dirty, wash it in gasoline or
replace it.
• When the inside of the tank gets dirty, rinsing the
tank out with gasoline can clean it.
AUTOMATIC OILER
• The discharge volume of the automatic oiler is
adjusted to 4 mL/min approx. at 7,000 r/min,
prior to shipment from factory .
- To increase the delivery volume, turn the
adjusting screw counterclockwise.
When the screw touches stopper and stops,
this position indicates maximum discharge
volume. (13 to 14 mL/min at 7,000 r/min)
- Do not turn the adjusting screw beyond the
max or min limit of volume adjustment.
↓↓
↓
↓↓
↑↑
1 mm
↑
↑↑
Brake band
Adjuster
Adjusting brake band
Adjuster
Cover
Brake band
Mark
Direction
to tension
ADJUSTING THE CHAIN BRAKE
When brake band is worn or elongated, adjust the
location of adjuster peak as follows.
• Remove the clutch cover .
• Remove the cov er and side plate.
• Turn adjuster position to set its peak to the
correct tensioning location.
• Ensure that clutch drum can be turned freely by
hand when brake handle is in cutting position
(release position).
CAUTION
ECHO recommends that an authorized ECHO
servicing dealer should service the chain brake.
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CS-510
Page 20
SPROCKET
Worn : 0.5 mm (0.020 in)
• The damaged sprocket will cause premature
damage or wear of saw chain.
- When the sprocket has worn out 0.5 mm
(0.020 in) or more, replace it.
• Check sprocket when you install ne w chain.
Replace it if worn.
GUIDE BAR
• Clean before using.
- Clean the groove of the guide bar with, for
Groove
Oil hole
example, a small screwdriv er .
- Clean oil holes with a wire.
• Clean sprocket, clutch and bar mount area
before installation of bar .
SETTING THE SA W CHAIN
Drive link
Tie strap
Right hand cutter
Sharpen lower edge
Preset tie strap
Guard link
Important points for proper maintenance of saw
chain:
• Keep the cutters sharp at all times.
• Keep the left and the right cutters properly
aligned.
- Note that blunt or irregular cutters will result in
poor cutting performance, increased vibration
of chains and premature breakage of the saw
chain.
• Drive link serves to remove sawdust from the
groove of the guide bar .
Therefore, keep the lo wer edge of the driv e link,
indicated by the arrow , sharp.
Left hand cutter
Top plate
Side plate
Depth guage
CS-510
20
Page 21
25°
Keep this
angle
Push file as shown
10°
Hold the file tipped 10° upward
SETTING SAW CHAIN
• For setting saw chain, round file (4 mm dia. 5/32
inch) and flat file are used.
• To keep correct position and correct angle ,
use the file holder (Sure Sharp).
- Round file (P-No. 897510-03931) and flat file
(P-No. 897511-00230) are optional.
- Inquire about the file holder, if desired.
1/5
One fifth of file diameter remains
above cutter edge
Depth gauge tool
• Place the depth gauge tool firmly on guide
bar so that depth gauge protrudes.
Then file top of depth gauge with flat the file until
flat with top of the depth gauge tool.
- Be sure to round off the front edge of the
depth gauge.
Remove until
flat with tool
Round off
the edge
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CS-510
Page 22
25°
Side plate angleTop plate filing angle
60°
Top plate cutting angle Depth gauge
0.64 mm (0.025 in)
60°
↓↓
↓
↓↓
↑↑
↑
↑↑
↑↑
↑
↑↑
Parallel
↓↓
↓
↓↓
Properly filed cutters are shown as illustration.
When setting of the chain is finished, soak it in oil
and wash awa y filings completely bef ore using.
- When chain has been filed on the bar, supply
sufficient oil to it, rotate the chain slowly to wash
awa y the filings before using again.
- If the chain saw is operated with filings clogged
in the groove, the sa w chain and the guide bar
will be damaged prematurely .
- If the saw chain becomes soiled with resin, for
instance, clean it with kerosene and soak in it oil.
NOTE
These angles are referred to as Oregon 33SL.
To sharpen other follow chain manufacturer’s
instruction.
CHAIN AND GUIDE BAR COMBINATION
The following combinations are recommended to the model CS-510.
Guide Bar Saw chain
Length ECHO Part No. Pitch Type Links
mm (in) Double Guard Intenz mm (in)
@ 406 (16) 160336601 162336601 8.26 (0.325) OREGON33SL 66
457 (18) 180337201 182337201 8.26 (0.325) OREGON33SL 72
508 (20) 200337801 202337801 8.26 (0.325) OREGON33SL 78
@ Standard configuration
SAW CHAIN
GUIDE BAR
Replacement guide bars.
The following guide bars ma y be considered to
have equivalent kic kbac k energy.
• Sprocket nose guide bars of the same length
and nose radius, same pitch and having the
same number of teeth.
• A hard nose guide bars of the same length and
nose radius as a sprocket nose bar.
CAUTION
Do not use replacement saw chain unless it has
been designated as meeting the CSA Z 62.3
kickback performance requirements.
NOTE
LOW KICKBACK SAW CHAIN is the chain which
has met the kickback perf ormance requirements
of CSA Z 62.3 (safety requirements for gasolinepowered chain saws).
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22
Page 23
Plug
Air cleaner cover
WINTER KIT
Use the winter kit with chain saw to prev ent a
carburettor’ s trouble in winter season.
Installation of the kit is as follows.
• AIR CLEANER COVER - Remov e air cleaner
cover . Remov e plug pro vided inside of the cov er .
• SNOW PROTECTOR (Option) - Snow protector
prevents that sno w gets into the unit b y fan cover
in snow fall or la ying snow.
• Set the protector hook (2pcs) to the fan cover.
Ensure that the setting direction is correct as
shown.
• Tighten two screws to fasten the snow protector.
Snow Protector
(Option part)
CAUTION
Do not use these parts in normal temperature.
It causes over heating of the engine.
SERVICE GUIDE
Before use
Daily or every
With Each
AREA MAINTENANCE PAGE
Air Filter Clean •
Replace 18 •
Fuel Filter Clean
Replace 19 •
Spark Plug Clean •
Replace 18 •
Carburettor Check/Rebuild •
Replace 17 1 •
Cooling System Inspect/Clean 18 •
Muffler Inspect/Clean - •
Oil Filter Inspect/Replace 19 •
Sprocket Inspect/Replace 20 •
Starter Rope Inspect/Replace - •
Guide Bar Inspect/Clean 20 •
Fuel System Inspect/Repair - •
Screws, Bolts & Nuts Inspect, Tighten/Replace •
Choke System Check 10 •
Ignition System Clean/Replace NO MAINTENANCE REQUIRED FOR COIL AND FLYWHEEL
Re-Fueling
4 Hours use
Monthly
Every Three Months
or 100 Hours use
Six Months or
300 Hours use
Every year or
600 Hours use
Replacement will be required for commercial use
1
after 600 hours.
For consumer use, cleaning every 6 months is
required.
Cleaning includes Rebuild kits.
IMPORTANT
Time intervals shown are maximum.
Actual use and your experience will determine
the frequency of required maintenance.
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CS-510
Page 24
TROUBLE SHOOTING
Problem
Engine starts hard Cause Remedy
does not start
Engine Fuel at No fuel • Fuel strainer clogged • Clean
Cranks carburettor at carburettor • Fuel line clogged • Clean
↓↓
↓
↓↓
Fuel at No fuel at • Carburettor • Ask your ECHO dealer
cylinder cylinder
Spark at No spark at • Ignition switch off • Turn switch on
end of end of plug • Electrical problem • Ask your ECHO dealer
plug wire wire
↓↓
↓
↓↓
Spark at No spark at (0.024 to 0.028 in)
plug plug • Covered with carbon • Clean or replace
Engine • Internal engine problem • Ask your ECHO dealer
does not
crank
→→
→
→→
• Carburettor • Ask your ECHO dealer
→→
→
→→
Muffler wet • Fuel mixture is too rich • Open choke
→→
→
→→
with fuel • Clean/replace air filter
• Adjust carburettor
• Ask your ECHO dealer
• Spark gap incorrect • Adjust 0.6 mm to 0.7 mm
→→
→
→→
• Fouled with fuel • Clean or replace
• Spark plug defective • Replace plug
Engine Dies or • Air filter dirty • Clean or replace
runs Accelerates poorly • Fuel filter dirty • Replace
• Fuel vent blocked • Clean
• Spark plug • Clean and adjust/replace
• Carburettor • Adjust
• Cylinder fins blocked • Clean
• Exhaust port port/spark • Clean
arrestor screen blocked
CS-510
24
Page 25
STORAGE AFTER USE
• Inspect and adjust every part of the chain saw.
- Completely clean every part and repair if
necessary.
- Apply thin coating of oil on metal parts to
prevent rust.
• Remove chain and guide bar , apply sufficient oil
coating and wrap them up in plastic sheet.
• Drain fuel tank, pull starter slowly a few times to
drain fuel from carburettor .
• Pour a small amount of clean motor oil into spark
plug hole, pull starter and crank the engine until
the T OP DEAD CENTER.
• Store in a dry area, free from dust.
WARNING DANGER
DO NOT STORE IN ENCLOSURE WHERE
FUEL FUMES MAY ACCUMULATE OR
REACH AN OPEN FLAME OR SPARK.
NOTE
For future reference, you should keep this
operator’s manual.
CAUTION
Do not lend and rent your chain saw without the
Operator’s manual, Safety manual and Kickguard instruction.
TECHNICAL DATA
CS - 510
Dimension L x W x H mm 398 x252x 272 (15.7 in x 9.9 in x 10.7 in)
Masses Power head, dry kg 4.9 (10.8 lb)
Without chain and guide bar
Engine Type Air-cooled two-stroke single cylinder
Displacement mL (cm³) 49.3 (3.00 cu in)
Carburettor Diaphragm type
Magneto Flywheel magneto : CDI system
Spark plug CHAMPION RCJ-6Y
Starter Recoil starter
Power transmission Automatic centrifugal clutch
Fuel Mixture ratio 50 : 1 ratio with ECHO brand two-stroke oil.
89 octane unleaded. Do not use fuel containing
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE.
Tank capacity L 0.60 (20.3 US fl oz)
Oil Bar and chain ECHO bar and chain oil (or motor oil)
Tank capacity L 0.28 (9.5 US fl oz)
Guide bar and See page 22 for Chain and Guide Bar
saw chain Combination
Lubrication Adjustable automatic oil pump
Standard Front hand guard, Rear hand guard
features Anti-vibration, Spiked bumper
Throttle control lockout, Chain brake
Chain catcher, Spark arrestor muffler, Kick guard
* Technical data subject to change without notice.
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CS-510
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