ECHO CS-4400 Chain Saw Instruction Manual

: June 17, 2024
: ECHO

ECHO CS-4400 Chain Saw

ECHO-CS-Chain-Saw-product

Specifications

Product: Echo Chainsaw CS-4400 Type 1-E
Engine: [engine specifications]
Weight: [weight]
Bar Length: [bar length]
Chain Pitch: [chain pitch]
Chain Gauge: [chain gauge]
Fuel Capacity: [fuel capacity]
Oil Capacity: [oil capacity]

Product Usage Instructions

Kickback Safety Precautions for Chain Saw Users

WARNING! 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. Tip contact in some cases may cause a lightning-fast reverse REACTION, kicking the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose control of the saw which could result in serious personal injury.

To minimize kickback and ensure safe operation, follow these steps:

Understand kickback to reduce surprise and prevent accidents.
Always maintain a firm grip on the saw with both hands, using the right hand on the rear handle and the left hand on the front handle while the engine is running. Encircle the chain saw handles with thumbs and fingers for a secure grip.
Clear the cutting area from obstructions to avoid contact between the nose of the guide bar and any logs, branches, or other objects.
Cut at high engine speeds to maintain control of the saw.
Avoid overreaching or cutting above shoulder height.
Follow the manufacturer’s instructions for sharpening and maintaining the saw chain.
Use only replacement bars and chains specified by the manufacturer or equivalents.

RULES FOR SAFE OPERATION

A. Kickback Safety Precautions for Chain Saw Users

WARNING!

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.
Tip contact in some cases may cause a lightning fast reverse REACTION, Kicking the guide bar up and back towards the operator.
Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of the saw which could result in serious personal injury.
Do not rely exclusively upon the safety devices built into your saw.
As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.

With a basic understanding of kickback, you can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents.
Keep a good firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles.
A firm grip will help you reduce kickback and maintain control of the saw.
Don’t let go.
Make sure that the area in which you are cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch, or any other obstruction which could be hit while you are operating the saw.
Cut at high engine speeds.
Do not overreach or cut above shoulder height.
Follow manufacturer’s sharpening and maintenance instructions for the saw chain.
Only use replacement bars and chains specified by the manufacturer or the equivalent.

Other Safety Precautions

Do not operate a chain saw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation.
A chain saw is intended for two-handed use.
Do not operate a chain saw when you are fatigued.
Use safety footwear, snug-fitting clothing and protective gloves. Wear eye, hearing, and head protection devices.
Use caution when handling fuel. Move the chain saw at least 3 m (10 feet) from the fueling point before starting the engine.
Do not allow other persons to be near the chain saw when starting or cutting with the chain saw.
Keep bystanders and animals out of the work area.
Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.
Keep all parts of your body away from the saw chain when the engine is running.
Before you start the engine, make sure that the saw chain is not contacting anything.
Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body.
Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
Shut off the engine before setting the chain saw down.
Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.
When cutting a limb that is under tension, be alert for springback so that you will not be struck when the tension in the wood fibers is released.
Keep the handles dry, clean, and free of oil or fuel mixture.
Operate the chain saw only in well ventilated areas.
Do not operate a chain saw in a tree unless you have been specifically trained to do so.
All chain saw service, other than the items listed in the Instruction manual maintenance instructions, should be performed by competent chain saw service personnel.
(For example, if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur and could subsequently cause the flywheel to burst.)
When transporting your chain saw, use the appropriate guide bar scabbard.
Spark arrestor mufflers approved to SAE Standard J 335 are standard on ECHO chain saws to reduce the possibility of forest fires.
Do not operate the chain saw with a loose or defective muffler.
Do not remove the spark arrestor screen.

Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to change without notice. Illustrations may include optional equipment and accessories, and may not include all standard.

This symbol accompanied by the words WARNING and DANGER calls attentions to an act or a condition which can lead to serious personal injury or death.
Circle and slash symbol means whatever is shown is prohibited.

CAUTION
The word CAUTION indicate a potentially hazardous situation, if not avoided, may result in minor or moderate injury.

NOTE
This enclosed message provides tips for use, care and maintenance of the unit.

NOMENCLATURE HAVE PARTS

$ECHO-CS-Chain-Saw- $2$$

$ECHO-CS-Chain-Saw- $5$$

NOMENCLATURE HAVE PARTS

Instruction manual – Included with unit. Read before operation and keep for future reference to learn proper, safe operating techniques.
Guide bar – The part that supports and guide the saw chain.
Bar tip guard – Anti-kickback device attached on the bar nose.
Installation and use KICK GUARD – Describe
Saw chain – Chain, serving as a cutting tool. how to install the kick guard and operate the saw with kick guard.
Spiked bumper – Device, fitted in front of the guide bar mounting point, acting as a pivot
Safety manual – Describe operating and safety when in contact with a tree or log. instructions for this chain saw.
Front handle (for the left hand) – Support
Front hand guard – Guard between the front handle and the saw chain for protecting the handle located at the front of the engine housing. hand from injuries and aiding in control of the
Oll tank cap – For closing the oil tank. chain saw if the hand slips off the handle. This guard is used to activate the chain
Fuel tank cap – For closing the fuel tank. brake which is to stop the saw chain rotation.
Throttle lock – Device for temporality setting
Cylinder cover – The cooling airflow grill. It the throttle in a partially open position to aid covers the cylinder, spark plug, silencer and starting. air cleaner.
Throttle trigger – Device activated by the
Rear handle (for the right hand) – Support operator’s finger, for controlling the engine handle located towards the rear of the engine speed. housing.
Throttle trigger lockout – A safety lever which
Choke control knob – Device for enriching the must be depressed before the throttle trigger fuel/air mixture in the carburettor to aid cold can be activated in order to prevents the starting. accidental operation of the throttle trigger.
Rear hand guard – Extension on the lower part
Ignition switch – Device for connecting and of the rear handle for protecting the hand disconnecting the ignition system and thus from the chain if it breaks or degrooves. allowing the engine to be started or stopped.
Clutch cover – Protective cover to the guide
Starter handle – Pull handle slowly until starter bar, saw chain, clutch and sprocket when the engages then quickly and firmly. When chain saw in use. engine starts, return handle slowly.
Chain catcher – A projection designed to DO NOT let handle snap back or damage to reduce the risk of the operator’s right hand unit will occur. from being hit by a chain which has broken or derailed from the guide bar during cutting,

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

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.
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.

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.

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.

CORRECT USE OF CHAIN BRAKE

WARNING
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.

USA : ANSI Standard B175.1 – 2000
Safety Requirement for chain saws
Canada : CSA Standard Z 62.1 CHAIN SAWS

WARNING

ANSI STANDARD B 175. 1 – 2000 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
B 175. 1 – 2000.

$ECHO-CS-Chain-Saw- $3$$

PREPARATION FOR USE

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CAUTION

All adjustment, should be made cold.
Always wear gloves when working on chain.

MOUNTING GUIDE BAR AND CHAIN

Remove the clutch cover.
Install the spiked bumper on the front of machine. Use two bolts 5´12)
Mount the guide bar ensuring that the chain tensioner fits in the hole provided.
Holding the bar in this position, feed the chain around the sprocket and into the guide bar groove.
Fit the clutch cover and nuts. Secure the nuts hand tight.

NOTE
Ensure that the chain is installed with the cutters directed forward on the top of the bar.

ADJUSTMENT, CHAIN TENSION

Turn the adjuster screw clockwise until the chain touches the bottom of the bar.
Hold the bar nose up and tighten the chain until there is no clearance between the bar and chain tie straps.
Tighten both nuts with the bar nose held up to eliminate clearance.
Pull the chain around the bar by hand.
Loosen the adjustment if you feel tight spots.

FUEL AND LUBRICANT

FUEL STATEMENT

GASOLINE-Use 89 Octane [ ] gasoline or gasohol known to be good quality.
Gasohol may contain maximum 10% ethyl (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.

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.

OPERATION

WHEN THE ENGINE IS COLD

Fill the fuel tank with fuel.
Fill the chain oil tank with lubricant.
Turn switch to “RUN” 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.

Securely hold the saw as shown and pull starter handle several times until first firing sound.
Push choke control knob all the way in.
Pull starter handle to start the engine.

WHEN THE ENGINE IS HARD TO START

Press throttle trigger lockout down while grasping throttle trigger and push in latch.
Pull starter handle.
When engine starts, immediately pull throttle trigger up, to release the latch.

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CAUTION

When locking throttle trigger by throttle lock at starting, keep the brake in brake position.
After starting the engine, squeeze throttle trigger slightly to release locking and pull front hand guard towards the operator immediately.(Chain brake RELEASED position)
Do not increase engine speed while chain brake is engaged.
Use the chain brake in an emergency. Do not use it unless absolutely necessary.

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.
Turn switch to “RUN” position.
Pull starter handle.
Choke may be used if necessary but be sure to push it back on first firing sound.

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.

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 for a helper as well.
After you have learned the basic techniques of using the saw, your best aid will be your own good common sense.
The accepted way to hold the saw 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 fell a tree, cut some small logs or limbs.
Become thoroughly familiar with the controls and the responses of the saw.
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 affect the housings of your ECHO chain saw.
(Example palm Tree Acid, fertilizer etc.)
To avoid housing deterioration, carefully remove 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 force.
This is known as kick-back. Avoid it!

SEE INSTRUCTION MANUAL INSERT FOR INSTALLATION AND USE WITH THE KICK GUARD.

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 make 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 away from the direction of fall at a 45-degree angle to avoid the trunk kicking back over the stump.
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 (2 inch) above 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 (2 inch)] 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 your retreat quickly.
To fell big trees with a diameter exceeding 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.

LIM BING
Limbing a fallen tree is much the same as bucking. Never limb on the tree that you 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 kick back, you may not have well enough control to prevent 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 heavy 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 you stand a good chance of being struck by flying debris.
To cut the trunk, use the bucking and two-cut sequence shown.
The first cut should be no deeper than one-third the trunk diameter.

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WARNING

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 CONTACTS ANOTHER OBJECT, THE CHAIN IS MOMENTARILY STOPPED AND ALL THE ENERGY OF ENGINE THROWS THE BAR UPWARDS AND BACKWARDS TOWARDS THE OPERATOR.
THE CHAIN SAW INDUSTRY AND GOVERNMENT AGENCIES HAVE ATTEMPTED TO PRESCRIBE VARIOUS SAFETY DEVICES, BUT THE BEST PROTECTION IS TO AVOID KICKBACK.
COMPLY WITH THE SAFETY PRECAUTIONS AS LISTED ON PAGE 1 OF THIS MANUAL AND SAFETY MANUAL.

CHAIN BRAKE OPERATION

Set the lever in the released position before 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 lever while holding the saw firmly on the ground.
When the brake lever trips, the chain should stop. Immediately release the throttle trigger.

CAUTION
Do not allow the saw to tip forward in order to avoid damage to the chain.CAUTION
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 deafer for repair.

If the chain does not stop immediately, return the saw to your authorized ECHO deafer for repair.

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NOTE

For practice, while cutting a small tree, push the lever forward to engage the brake.
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 device 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 brake in an area where gasoline fumes are present.

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:

Stop the engine of the chain saw.
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.
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.)
The impact is propagated to the brake lever, which actuates the chain brake.

( PRECAUTION )
When checking the operation of the automatic chain brake, use a soft surface substance like wood to provide the impact so the chain is not damaged.

MAINTENANCE AND CARE

CARBURETTOR ADJUSTMENT
Every unit is run at the factory and the carburettor is set in compliance with California Emission Regulations. In addition, the carburettor is equipped with “H” (High Speed Needle) and “L” (Low Speed Needle) needle adjustment limited that prevent settings outside acceptable limits.

Before adjusting carburettor clean or replace air filter and muffler, “Spark Arrestor Screen”.
Make sure the cutting attachments such as bar and chain are properly adjusted.
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.
Stop engine.
Turn “H” speed needle CCW to stop.
Turn “L” speed needle midway between full CW stop and CCW stop.
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
CUTTING ATTACHMENT MUST NOT TURN OR MOVE WHEN UNIT IS IDLING.
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.
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.

AIR FILTER

Check before every use.
Loosen three screws and remove air cleaner cover and filter.
Brush off dust lightly, or clean with compressed air, or replace the 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.

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).

$ECHO-CS-Chain-Saw- $21$$ 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

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.

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 cover 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.

SPROCKET

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 new chain. Replace it if worn.

GUIDE BAR

Clean before using.
- Clean the groove of the guide bar with, for example, a small screwdriver.
- Clean oil holes with a wire.
Clean sprocket, clutch and bar mount area before installation of bar.

SETTING THE SAW CHAIN

$ECHO-CS-Chain-Saw- $24$$ 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 lower edge of the drive link, indicated by the arrow, sharp.

SETTING SAW CHAIN

For setting saw chain, round file (4.5 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.

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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.

Properly filed cutters are shown as illustration.
When setting of the chain is finished, soak it in oil and wash away filings completely before using.

When chain has been filed on the bar, supply sufficient oil to it, rotate the chain slowly to wash away the filings before using again.
If the chain saw is operated with filings clogged in the groove, the saw 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-4400 TYPE1-E.

Guide Bar| Saw chain|
---|---|---
Length

mm (in)

| ECHO Part No.| Pitch Type Lin

mm (in)

| ks
Double Guard| Intenz
@ 406 (16)

457 (18)

508 (20)

| 160336601

180337201

200337801

| 162336601

182337201

202337801

| 8.26 (0.325)

8.26 (0.325)

| OREGON33SL OREGON33SL

OREGON33SL

| 6

7

| 6

2

8

@ Standard configuration|

GUIDE BAR

Replacement guide bars.
The following guide bars may be considered to have equivalent kickback 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.

SAW CHAIN

CAUTION
Do not use replacement saw chain unless it has been designated as meeting the ANSI B 175.1 -2000 kickback performance requirements.
NOTE
LOW KICKBACK SAW CHAIN is the chain which has met the kickback performance requirements of ANSI B 175.1-2000 (safety requirements for gasoline-powered chain saws).

WINTER KIT
Use the winter kit with chain saw to prevent a
carburetor’s trouble in winter season.
Installation of the kit is as follows.

CYLINDER COVER – Remove cylinder cover.
Turn plug provided inside the cover counterclockwise to open hole for hot air.
SNOW PROTECTOR (Option) – Snow protector prevents that snow gets into the unit by fan cover in snow fall or laying 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.

CAUTION
Do not use these parts in normal temperature. It causes over heating of the engine.

SERVICE GUIDE

| With Each Re-Fueling| **** Before use| Daily or every 4 Hours use| Monthly| Every Three Months or 100 Hours use| Six Months or 300 Hours use| Every year or 600 Hours use
---|---|---|---|---|---|---|---
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

1 Replacement will be required for commercial use 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.
Replacement will be required for commercial use 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.

TROUBLESHOOTING

$ECHO-CS-Chain-Saw- $1$$

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 TOP DEAD CENTER.
Store in a dry area, free from dust.

WARNING

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 instruction manual.

CAUTION
Do not lend and rent your chain saw without the Instruction manual, Safety manual and Kick-guard instruction.

TECHNICAL DATA

| CS – 4400 TYPE1-E
---|---
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| 4.6 (10.2 lb)

Without chain and guide bar

Engine|

Type Displacement
Carburettor Magneto Spark plug Starter
Power transmission

| | Air-cooled two-stroke single cylinder
mL (cm³)| 43.6 (2.66 cu in)
| Diaphragm type

Flywheel magneto : CDI system CHAMPION CJ-6Y or NGK BPM 8Y

Recoil starter

Automatic centrifugal clutch

Fuel| Mixture ratio

**** Tank capacity

| | 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.

L| 0.60 (20.3 US fl oz)
Oil|

Bar and chain
Tank capacity

| | ECHO bar and chain oil (or motor oil)
L| 0.28 (9.5 US fl oz)
Guide bar and saw chain| | | See page 22 for Chain and Guide Bar Combination
Lubrication| | Adjustable automatic oil pump
Standard features| | | Front hand guard, Rear hand guard Anti-vibration, Spiked bumper Throttle control lockout, Chain brake Chain catcher, Spark arrestor muffler