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MAINTENANCE

CS-303T

X7503209108

IMPORTANT NOTE

- Time intervals shown are maximum. Actual use and

your experience will determine the frequency of required maintenance.

MAINTENANCE PROCEDURE NOTES:

* Replacement is recommended based on the finding of damage or wear

during inspection.

Carburetor Adjustment

Every unit is run at the factory and the carburetor is set in compliance with

Emission Regulations. In addition, the carburetor is equipped with “

” (High

Speed) and (“

” (Low Speed) needle adjustment limiters that prevent

settings outside acceptable limits.

Engine Break-In

New engines must be operated a minimum duration of two tanks of fuel

break-in before carburetor adjustments can be made. During the break-in

period your engine performance will increase and exhaust emissions will

stabilize. Idle speed can be adjusted as required.

Fuel System

Inspect

Guide Bar & Sprocket Nose Inspect

3 Months

Air Filter

Replace *

Oil Filter

Inspect / Replace *

Fuel Filter

Inspect *

Fuel Cap Gasket

Inspect *

Spark Plug

Inspect / Clean / Replace *

Muffler Spark Arrestor

Inspect/Clean/Replace *

Cylinder Exhaust Port

Inspect / Clean / De-carbon

Yearly

Fuel Filter

Inspect / Replace *

Fuel Cap Gasket

Replace *

COMPONENT / SYSTEM

MAINTENANCE PROCEDURE

REQ’D

SKILL

LEVEL

Содержание CS-303T

Страница 1: ...the State of California to cause cancer birth defects or other reproductive harm Read and understand all provided literature before use Failure to do so could result in serious injury Note This product complies with CAN ICES 2 NMB 2 Note In Canada this chain saw is designated for tree service and is only to be used by a trained operator ...

Страница 2: ...For Use 22 Operation 25 Fuel 25 Chain Lubricant 29 Starting Cold Engine 30 Starting Hard To Start Engine 32 Starting Warm Engine 35 Running 36 Stopping 37 Checking Chain Tension 38 Chain Lubrication Test 38 Cutting Instructions 38 Chain And Guide Bar Combination 43 Kick GuardTM 43 Guide Bar 43 Saw Chain 44 Maintenance 44 Skill Levels 45 Maintenance Intervals 45 Carburetor Adjustment 46 Lifting Hoo...

Страница 3: ...eration maintenance storage and assembly specific to this product Scan QR codes for more information For additional literature including safety manuals where applicable or questions regarding terms used in this manual visit https www echo usa com manuals OR https www shindaiwa usa com manuals SERVICING INFORMATION Parts Serial Number Genuine ECHO Parts and Assemblies for your ECHO products are ava...

Страница 4: ...ase know the model and serial number of your unit Product Registration Register your ECHO equipment on line at www echo usa com or by filling out the product registration sheet included in this manual Registering your product confirms warranty coverage and provides a direct link to ECHO if we find it necessary to contact you Additional Literature In addition to finding information online informati...

Страница 5: ...hich could result in serious personal injury The optional Kick GuardTM device is not installed on the guide bar when you purchase your chain saw The optional Kick GuardTM can be used in a majority of cutting operations and is especially recommended for beginners homeowners or chain saw novices Most cutting operations can be accomplished with the optional Kick GuardTM in place Do not rely exclusive...

Страница 6: ... Cut at high engine speeds 5 Do not overreach or cut above shoulder height 6 Follow manufacturer s sharpening and maintenance instructions for the saw chain 7 Only use replacement bars and chains specified by the manufacturer or the equivalent Correct Use Of Chain Brake Chain Brake Operation Set the lever in the unlocked position before starting to cut If the brake is tripped by kickback reaction ...

Страница 7: ...ed with wood chips function of the brake may deteriorate Always keep the device clean Do not increase engine RPM while the chain brake is locked Do not use a bar and chain combination other than those specified in this manual For your own safety do not remove the chain brake system The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of o...

Страница 8: ...1 3 Automatic Chain Brake Kickback produced from the tip of the guide bar will trip the automatic chain brake To make sure that the automatic chain brake operates properly follow these steps 1 Stop the engine 2 Hold the saw with the guide bar approximately 35 cm 14 inches above a wooden surface Right hand should hold the rear handle and left hand should hold the front handle 3 Release the front ha...

Страница 9: ... stopped the guide bar and saw chain to the rear and the muffler away from your body 10 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 11 Shut off the engine before setting the chainsaw down 12 Use extreme caution when cutting small size brush and saplings ...

Страница 10: ... until the hole is sufficiently large so as to introduce the entire nose tip of the guide bar This technique should reduce the danger of kickback 25 Allow your chainsaw to cool before refueling and do not smoke while refueling Chain saws shall be used in accordance with the operating instructions and safety precautions listed in the operator s manual s It shall be the responsibility of the owner t...

Страница 11: ...ving safety devices may result in serious or fatal injury Unit includes safety devices that reduce the likelihood of kickback Chain brake brake actuated by kickback energy not manual activation Reduced kickback guide bar reduced nose radius guide bar Low kickback saw chain saw chain that meets ANSI kickback performance requirements when configured with the bar chain recommendations in this manual ...

Страница 12: ...d improperly and or safety precautions are not followed Proper clothing and safety gear must be worn when operating unit Physical Condition Your judgment and physical dexterity may not be good If you are tired or sick If you are taking medication If you have taken alcohol or drugs Operate unit only if you are physically and mentally well Eye Protection Eye protection that meets ANSI Z87 1 or CE re...

Страница 13: ... plant matter such as pollen Make sure the mask does not impair your vision and replace the mask as needed to prevent air restrictions Proper Clothing Wear snug fitting durable clothing Pants should have long legs shirts should have long sleeves DO NOT WEAR SHORTS DO NOT WEAR TIES SCARVES JEWELRY or clothing with loose or hanging items that could become entangled in moving parts or surrounding gro...

Страница 14: ... 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 sensations 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...

Страница 15: ...o the following Avoid using your wrist in a bent extended or twisted position Instead try to maintain a straight wrist position Also when grasping use your whole hand not just the thumb and index finger Take periodic breaks to minimize repetition and rest your hands Reduce the speed and force with which you do the repetitive movement Do exercises to strengthen the hand and arm muscles Immediately ...

Страница 16: ...ctions could result in serious personal injury Carburetor Adjustment High Speed Mixture Wear Eye Ear and Head Protection Carburetor Adjustment Idle Speed Tip contact may cause the guide bar to move suddenly upward and backward which may cause serious injury Carburetor Adjustment Low Speed Mixture Contact of the guide bar tip with any object should be avoided Measured maximum kickback value without...

Страница 17: ...ymbols will appear on your unit Chain Brake Operation Chain Oiler Adjustment Choke Control COLD START Position Choke Closed Choke Control RUN Position Choke Open Purge Pump De Compression Device STOP Momentary STOP Switch Symbol Description Symbol Description STOP STOP ...

Страница 18: ...injury or death if not avoided The safety alert symbol accompanied by the word WARNING calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided The safety alert symbol accompanied by the word CAUTION calls attention to an act or condition which might lead to minor or moderate personal injury if not avoided The enclosed message provides information ne...

Страница 19: ...l line emission control system is EVAP evaporative emissions Evaporative emissions for California models are only applicable to fuel tanks and fuel feed lines An Emission Control Label is located on the engine This is an EXAMPLE ONLY information on label varies by engine FAMILY Product Emission Durability Emission Compliance Period The 50 or 300 hour emission compliance period is the time span sel...

Страница 20: ... that you understand and follow the instructions on it If a decal cannot be read a new one can be ordered from your ECHO dealer Safety label is for example only Your label my appear slightly different 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 X505009410 X505009410 X505002310 22 23 United States Estados Unidos États Unis Canada Canadá ...

Страница 21: ...t when engine rpm is fast enough to provide the power needed for cutting 1 Rear Handle For The Right Hand 2 Throttle Trigger Latch 3 Chain Brake Lever Front Hand Guard 4 Air Cleaner Cover 5 Kick GuardTM Optional 6 Saw Chain 7 Guide Bar 8 Chain Catcher 9 Chain Tension Adjuster 10 Clutch Cover Sprocket Guard 11 Muffler Cover 12 Throttle Trigger 13 Throttle Trigger Lockout 14 Stop Switch 15 Lifting H...

Страница 22: ...ith guide bar and saw chain separated Install guide bar saw chain and optional Kick GuardTM as follows Instructions to Install Optional Kick GuardTM to Bar Tool Needed Two 11 mm 7 16 in Wrenches 1 Install bolt A in rear hole B of Kick GuardTM and through front hole C in guide bar 2 IMPORTANT Dimple D in Kick GuardTM must engage recess E in guide bar 3 Securely tighten nut F and bolt A A D B E C F ...

Страница 23: ... MAINTENANCE AND CARE instructions for guide bar sprocket and saw chain maintenance 5 Mount Guide Bar C on Guide Bar Studs E and slide toward Sprocket F to make Saw Chain D installation easier Install Saw Chain around Sprocket and Guide Bar as shown with cutters facing forward on top of Guide Bar 6 Install Sprocket Guard B over Guide Bar Studs E Make sure Chain Tension Adjuster Pin G fits into the...

Страница 24: ...jury and will cause severe saw damage if unit is started Never start or operate saw if brake band is not in place on clutch drum Always check chain brake operation after replacing guard Do not use saw if chain brake does not function properly 8 Adjust saw chain tension as instructed in Adjustment Chain Tension Adjusting Chain Tension Always loosen sprocket guard nuts before turning the chain tensi...

Страница 25: ...n properly tensioned at all times Note All chains require frequent adjustments 7 Replace spark plug lead OPERATION Fuel Diesel fuels and alternative fuels such as E 15 15 ethanol E 85 85 ethanol or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2 stroke gasoline engines Use of diesel or alternative fuels can cause performance problems loss of power overheating fuel vapor ...

Страница 26: ...use an ISO L EGD ISO CD 13738 and J A S O M345 FD certified oil will void the two stroke engine warranty 2 Stroke engine oil contains petroleum distillates and other additives that may be harmful if swallowed Heated oil can release vapors that can cause flash fire or ignite with explosive force Read and follow the oil manufacturer s instructions and observe all safety warnings and precautions for ...

Страница 27: ...und DO NOT overfill fuel tank Wipe up spills immediately Securely tighten fuel tank cap and close fuel container after refueling Inspect for fuel leakage If fuel leakage is found do not start or operate unit until leakage is repaired Move at least 3 m 10 ft from refueling location before starting the engine Gasoline vapor is heavier than air and can travel along the ground to nearby sources of ign...

Страница 28: ...llage Storage Fuel storage laws vary by locality Contact your local government for the laws affecting your area As a precaution store fuel in an approved airtight container Store in a well ventilated unoccupied building away from sparks and flames Empty the fuel tank prior to storing the unit Return unused fuel to an approved fuel storage container Stored two stroke fuel can separate ALWAYS shake ...

Страница 29: ...ies Keep hands clothing and loose objects away from all openings Always stop engine disconnect spark plug and make sure all moving parts have come to a complete stop before removing obstructions clearing debris or servicing unit Engine exhaust IS HOT and contains Carbon Monoxide CO a poison gas Breathing CO can cause unconsciousness serious injury or death Exhaust can cause serious burns ALWAYS po...

Страница 30: ...ain saw 1 Move chain brake lever fully FORWARD to LOCK chain brake before starting 2 Fill the fuel tank with fuel mixture Do not over fill 3 Fill the chain oil tank with lubricant Do not over fill 4 Move Stop Switch A FORWARD to RUN position 5 Push Purge Pump B 8 times 6 Pull Choke Control Knob C all the way out Choke position CLOSED choke position A B B C ...

Страница 31: ...ator immediately Chain brake unlocked position Never use fast idle throttle latch for cutting Use the fast idle throttle latch only in starting Do not increase engine speed when chain brake is locked Severe brake damage can occur 7 Securely hold the chain saw as shown 8 When starting the chain saw place the unit on flat ground and hold the front handle with left hand and hold firmly the rear end o...

Страница 32: ...ting Hard To Start Engine Make sure the bar and chain are free from any obstruction when starting the chain saw 1 Move chain brake lever fully FORWARD to LOCK chain brake before starting 2 Fill the fuel tank with fuel mixture Do not over fill 3 Fill the chain oil tank with lubricant Do not over fill 4 Move Stop Switch A FORWARD to RUN position 5 Push Purge Pump B 8 times A B ...

Страница 33: ...ottle latch engaged Do not start engine unless chain brake is locked When using throttle latch for starting keep the brake in lock position After starting the engine immediately squeeze and release throttle trigger for disengaging throttle latch and returning engine to idle and pull front hand guard towards the operator immediately Chain brake unlocked position Never use fast idle throttle latch f...

Страница 34: ...und and hold the front handle with left hand and hold firmly the rear end of rear handle with right knee Pull starter handle with right hand several times until first firing sound 9 Push Choke Control Knob C all the way in to OPEN choke position 10 Pull starter handle to start the engine Note Do not pull starter rope out to maximum position Do not allow recoil handle to snap back against the casin...

Страница 35: ...tor immediately Chain brake unlocked position Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chain saw 1 Move chain brake lever fully FORWARD to LOCK chain brake before starting 2 Confirm there is fuel and chain oil in the tanks 3 Move Stop Switch A forward to RUN position A B ...

Страница 36: ...ncrease engine speed while chain brake is locked Severe brake damage will result Note After starting the engine pull front hand guard towards the operator immediately Chain brake unlocked position Running The saw chain should not move at idle otherwise serious personal injury may result Note If saw chain moves adjust carburetor according to Carburetor Adjustment instructions in this manual or see ...

Страница 37: ...ation of chain and bar 6 Do not run the engine at high speed unnecessarily 7 Be sure that saw chain stops moving when throttle trigger is released Stopping 1 Release Throttle Trigger F and allow engine to idle 2 Move Stop Switch A REARWARD to STOP position Note If engine does not stop pull Choke Control Knob C A all the way out CLOSED choke position Return the unit to your authorized dealer to che...

Страница 38: ... 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 Instructions General This chain saw is designed for cutting wood Do not cut metal plastic or any non wood material Wear suitable hearing protection such as earmuffs or earplugs to protect against objectionable or unco...

Страница 39: ...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 handle 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 res...

Страница 40: ...ine or bar and chain oil to metal parts after they are cleaned Install and properly tension guide bar and chain Run engine for one minute alternating engine speed between full throttle for 5 seconds and idle for 5 seconds to coat metal parts with additional protective chain oil Do not run a chainsaw not under cutting load at wide open throttle longer than 5 seconds or engine damage can occur Keep ...

Страница 41: ...t 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 in 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...

Страница 42: ... 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 w...

Страница 43: ...ick GuardTM contact your ECHO dealer For the name of the ECHO dealer nearest you Call 1 800 432 ECHO 3246 or on the web at www echo usa com Guide Bar Low kickback 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 Hard nose guide bars of the s...

Страница 44: ...ear gloves to protect hands from sharp edges and hot surfaces Operating a poorly maintained unit can result in serious injuries to operator or bystanders Always follow all maintenance instructions as written otherwise serious personal injury can result Your unit is designed to provide many hours of trouble free service Regular scheduled maintenance will help your unit achieve that goal If you are ...

Страница 45: ...automatically return to RUN position Engine can start unintentionally Always remove spark plug lead from spark plug before assembling or performing maintenance procedures otherwise serious personal injury can result COMPONENT SYSTEM MAINTENANCE PROCEDURE REQ D SKILL LEVEL Daily or Before Use Air Filter Inspect Clean 1 Automatic Oiler Inspect Adjust 1 Oil Filter Inspect 1 Fuel System Inspect 1 Guid...

Страница 46: ...revent settings outside acceptable limits Engine Break In New engines must be operated a minimum duration of two tanks of fuel break in before carburetor adjustments can be made During the break in period your engine performance will increase and exhaust emissions will stabilize Idle speed can be adjusted as required Fuel System Inspect 1 Guide Bar Sprocket Nose Inspect 1 3 Months Air Filter Repla...

Страница 47: ...unterclockwise CCW to stop Turn L Low Speed needle midway between full clockwise CW stop and CCW stop 5 Idle Speed Adjustment Start engine turn Idle Speed Adjustment Screw T CW until the saw chain begins to move then turn screw out CCW until the saw chain stops moving Turn screw out CCW an additional 1 4 turn When carburetor adjustment is completed the saw chain should not move at idle otherwise s...

Страница 48: ...checked out by your nearest authorized ECHO dealer Air Filter 1 Check periodically 2 CLOSE choke COLD START position This prevents dirt from entering the carburetor throat when the air filter is removed Brush accumulated dirt from air cleaner area 3 Remove air cleaner cover Brush dirt from inside cover 4 Remove air filter and lightly brush debris from filter Replace filter if it is damaged fuel so...

Страница 49: ...of a hook pull strainer out through gas port and inspect strainer 2 If the strainer is dirty clean with suitable cleaning fluid 3 When the inside of the fuel tank is dirty rinsing the tank out with gasoline can clean it Note Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel...

Страница 50: ...ect the normal lubricating system 1 Remove grommet pull strainer out through oil port and inspect strainer 2 If the strainer is dirty clean with suitable cleaning fluid 3 If the inside of the oil tank is dirty rinse with suitable cleaning fluid 4 Install strainer into lower front of oil tank to ensure proper chain lubrication Guide Bar 1 Clean before using 2 Clean the groove A of the guide bar wit...

Страница 51: ... 0 020 in or more replace it Check sprocket when you install new chain Replace it if worn Some tree sap and resins are corrosive Thoroughly wash the guide bar and sprocket areas after each use then coat metal parts with light oil Cooling System Cleaning Check periodically Clogged fins will result in poor engine cooling 1 Remove muffler and starter Worn 0 5 mm 0 020 in ...

Страница 52: ...d 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 J335 Check with your local or state authorities for specific regulations in your area Failure to follow these requirements is a violation of the law Spark Arrestor Screen Carbon deposits in muffler will cause...

Страница 53: ...crape carbon from the exhaust port Do not scratch the cylinder or piston when cleaning the exhaust port Do not allow carbon particles to enter the cylinder 6 Install muffler Tighten bolts to 9 11 N m 80 95 in lbf 7 Connect spark plug lead 8 Start engine and allow unit to warm up at idle for several minutes 9 Stop engine and re tighten mounting nuts to 9 11 N m 80 95 in lbf 10 Install muffler cover...

Страница 54: ...tting 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 Keep the lower edge of the drive link sharp where indicated Setting Saw Chain For setting saw chain round file 4 0 mm 5 32 in diam and flat file are used Push file as shown Tie Strap Right Hand Cutter Drive Link Preset Tie Strap Left Hand Cutt...

Страница 55: ...s Then file top of depth gauge with the flat file until flat with top of the depth gauge tool One fifth of the file diameter remains above cutter edge Be sure to round off the front edge of the depth gauge Properly filed cutters are shown in illustration When setting of the chain is finished soak it in oil and wash away filings completely before using 90 1 5 Depth gauge tool 55 Side plate angle 30...

Страница 56: ...ay 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 To sharpen other chains follow chain manufacturer s instructions 0 64 mm 0 025 in Parallel Depth gauge ...

Страница 57: ...too rich OPEN choke Clean or replace air filter Adjust carburetor See your dealer Spark at end of plug wire No spark STOP switch OFF Electrical problem Inter lock switch Turn switch to ON See your dealer Spark at plug Incorrect gap Covered with carbon Fouled with fuel Plug defective Adjust to 0 65 mm 0 026 in Clean or replace plug Engine runs but dies or Engine does not acceler ate properly Air fi...

Страница 58: ...edures Serious personal injury can result 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 Engine runs but dies or Engine does not acceler ate properly Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust Cooling system Cooling ...

Страница 59: ... not store in an enclosure where fuel fumes may accumulate or reach an open flame or spark Do not lend or rent your chain saw without the Operator s Manual Note For future reference you should keep this Operator s Manual If this Operator s Manual becomes illegible or is lost please contact your ECHO dealer or go to www echo usa com SPECIFICATIONS Model CS 303T Length 260 mm 10 2 in Width 235 mm 9 ...

Страница 60: ...tic oiler Chain oil capacity 150 ml 5 1 US fl oz Starter system Automatic rewind starter Clutch Centrifugal type Sprocket type Spur type 6 tooth 3 8 in pitch Chain brake Manual and non manual band brake type Idle speed 3 200 RPM Clutch engagement speed 4 400 RPM Wide open throttle speed W O T 12 000 RPM Chain tensioner Side access system Guide bar 12 14 in Saw chain 91PX 91VG Standard features Top...

Страница 61: ...CS 303T NOTES X7503209108 61 10 20 ECHO Incorporated NOTES ...

Страница 62: ... on line It s FAST and EASY NOTE your information will never be sold or misused by ECHO Incorporated Registering your purchase enables us to contact you in the unlikely event of a service update or product recall and verifies your ownership for warranty consideration If you do not have access to the Internet you can complete the form below and mail to ECHO Incorporated Product Registration PO Box ...

Страница 63: ...CS 303T PRODUCT REGISTRATION X7503209108 63 10 20 ECHO Incorporated ...

Страница 64: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com C67215001001 C67215999999 ...

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