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Echo CS-310 - page 1
Specifications, descriptions and illustrativ e material in th is liter ature are as accurate as kno wn at the time of publ ication, b ut are subject to change without not ice . Illustr ations ma y include optional equipment and accessories, and ma y not include all standard eq uipment. Instruction Manual X7503270007 © 08/2013 ECHO Inc. x7722271404 ...
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Echo CS-310 - page 2
2 X7503270007 © 08/2013 ECHO Inc. TABLE OF CONTENTS CS-310 TABLE OF CONTENTS Table of Contents ............ ...................... ....................... ...................... ....................... ........ ........ ....................... ..................... 2 Packing List ............... .................... ... ... .. .................... ...
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Echo CS-310 - page 3
CS-310 PACKING LIST © 08/2013 ECHO Inc. X7503270007 3 PACKING LIST The ECHO product y ou purchased has been f actory pre-as sembled f or yo ur conv en ience. Due to pac kaging restrictions, guide bar and sa w chain installation and other assemb ly may be n ecessar y . After opening the car ton, chec k f or damage . Immediately notify y our retaile ...
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Echo CS-310 - page 4
4 X7503270007 © 08/2013 ECHO Inc. SAFETY CS-310 SAFETY Rules For Safe Operation Kic kback Saf ety Precautions fo r 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. Tip contact in some cases ma y cause a lightning f ast rev erse REA CTION, Ki ...
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Echo CS-310 - page 5
CS-310 SAFETY © 08/2013 ECHO Inc. X7503270007 5 Correct Use Of Chain Brake Chain Brake Operation • Set the le ver in the unlock ed position bef ore star ting to cut. • If the brak e is tripped by kic kback reaction , the chain will stop immediately . Relea se the thrott le to a vo id possib le damage to the engine or clutch. • Do not attempt ...
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Echo CS-310 - page 6
6 X7503270007 © 08/2013 ECHO Inc. SAFETY CS-310 A utomatic Chain Brake Kic kback produced from the tip of th e guide bar will tr ip the automatic chain br ake. T o make sure that the automatic chain brak e operates properly , f ollow these steps: 1. Stop the engine . 2. Hold the saw with the guide bar appro ximately 35 cm (14 in.) abov e a wooden ...
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Echo CS-310 - page 7
CS-310 SAFETY © 08/2013 ECHO Inc. X7503270007 7 14. K eep the handles dry , clean, and free of oil or fuel mixture . 15. Operate the chain saw only in well v entilated areas . 16. Do not operat e a chain saw in a tree unless y ou ha ve been specifica lly trained to do so . 17. All chain saw service, other than items listed in the Instr uction man ...
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Echo CS-310 - page 8
8 X7503270007 © 08/2013 ECHO Inc. SAFETY CS-310 Personal Condition and Safety Equipment Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. Prope r clothing and safety gear must be worn when operating unit. Physical Condition Y our judgment and ph ysical de xter ity ...
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Echo CS-310 - page 9
CS-310 SAFETY © 08/2013 ECHO Inc. X7503270007 9 The ignition components of thi s machine generate an electromagnetic field during opera tion which may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating ...
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Echo CS-310 - page 10
10 X7503270007 © 08/2013 ECHO Inc. SAFETY CS-310 All over head electrical conductors and com munications wires can have electricity flow with high voltages. This unit is not insulated against el ectrical current. Never touch wires directly or indirectly, otherwise serious injury or death may resul t. Do not operate this product indoors or in inade ...
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Echo CS-310 - page 11
CS-310 SAFETY © 08/2013 ECHO Inc. X7503270007 11 Symbols and Signs Symbol form/s hape Symbol description/application Symbol fo rm/shape Symbol description/application WARNING!! Read and follow all safety precaution in the instruction manual. Failure to follow instructions could result in serious personal injury. Choke control “Cold Start” posi ...
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Echo CS-310 - page 12
12 X7503270007 © 08/2013 ECHO Inc. EMISSION CONTROL (EXHAU ST / EVAPORATIVE) CS-310 Manual Safety Symbols an d Important Information Throughout this manual and on the product itself , y ou will find saf ety aler ts and helpful, informational messages preceded by symbols or ke y words . The follo w ing is an e xplanation of those symbols and k ey w ...
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Echo CS-310 - page 13
CS-310 DESCRIPTION © 08/2013 ECHO Inc. X7503270007 13 DESCRIPTION Locate the saf ety decal(s) on you r unit. Mak e sure the deca l(s) is legib le and th at y ou underst and and f ollow the instructions on it. If a decal cannot be read, a ne w one can be ordered from y our ECHO dealer . See P AR TS ORDERING instr uctions f or specific inf or mation ...
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Echo CS-310 - page 14
14 X7503270007 © 08/2013 ECHO Inc. DESCRIPTION CS-310 1. Chain Brake Le ver/Front hand guar d - Locks and unloc ks the chain brak e to stop or allo w saw chain rotation. Guard betw een the front handle and the sa w chain helps protect the hand from injuries if the hand slips off the handle . 2. Spark arrestor m uffler or spark arrestor muffler wit ...
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Echo CS-310 - page 15
CS-310 DESCRIPTION © 08/2013 ECHO Inc. X7503270007 15 Preparation For Use Saw Chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. Note: The machine ma y be deliv ered with guide bar , tip guard, and saw chain separ ated. Install guide bar , tip guard, and sa w chain as f ollows . Tip Guard T o B ...
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Echo CS-310 - page 16
16 X7503270007 © 08/2013 ECHO Inc. DESCRIPTION CS-310 5. Mount guide bar (L) on studs , and slide tow ard sprock et to make sa w chain installation easier . Install sa w chain (M) around sprock et and guide bar as sho wn, with cutters on top of guide bar f acing fo rward. 6. Install sproc ket guard o ver guide bar studs . Ensure chain tension adju ...
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Echo CS-310 - page 17
CS-310 DESCRIPTION © 08/2013 ECHO Inc. X7503270007 17 5. Pull the chain around the bar by hand. L oosen the adjustment if you feel tight spots . Tighten guide bar nu ts to 4.5 – 7.5 N•m (40 – 65 in•lbf) DO NO T ov er-tighten nuts . Damage to saw ma y result . 6. K eep chain properly tensioned at all times . Note: All chains require frequen ...
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Echo CS-310 - page 18
18 X7503270007 © 08/2013 ECHO Inc. OPERATION CS-310 OPERATION Fuel Alternative fuels, such as E-15 (15% etha nol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gaso line engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unint ...
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Echo CS-310 - page 19
CS-310 OPERATION © 08/2013 ECHO Inc. X7503270007 19 Mixing Instructions 1. Fill an approv ed fuel container with half of the required amount of gasoline. 2. Add the proper amount of 2-strok e oil to gasoline . 3. Close container and shak e to mix oil with gasoline. 4. Add remaining gasoline , close fuel container , and remix. Spilled fuel is a lea ...
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Echo CS-310 - page 20
20 X7503270007 © 08/2013 ECHO Inc. OPERATION CS-310 Moving parts can amputate fingers or cause severe injuries. Ke ep 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 befo re removing obstructions, clearing debris, or servicing un it. En ...
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Echo CS-310 - page 21
CS-310 OPERATION © 08/2013 ECHO Inc. X7503270007 21 2. Fill the fuel tank with fuel mixture . Do not ov er fill. 3. Fill the chain oil tank with lubr icant. Do not o ver fill. 4. Mov e ignition s witch (A) to “ RU N ” position. 5. Push purge pump (B) 3 to 4 times or until fuel is visib le in purge pump . 6. Pull chok e control knob all the wa ...
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Echo CS-310 - page 22
22 X7503270007 © 08/2013 ECHO Inc. OPERATION CS-310 Starting Warm Engine Make sure the bar and chain are free from a ny obstruction when starting the chain saw. 1. Mov e chain brak e le ver fully f orward to loc k chain brake bef ore star ting. 2. Confir m there is fuel a nd chain oil in the tanks. 3. Mov e ignition s witch to “ RU N ” positio ...
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Echo CS-310 - page 23
CS-310 OPERATION © 08/2013 ECHO Inc. X7503270007 23 7. Be sure that sa w chain stops moving when throttle trigger is released. Stopping 1. Release throttle trigger and allow engine to idle . 2. Mov e ignition s witch (A) down to “stop” position. Note: If engine does not stop , pull chok e control knob out fully to stop engine. Return the unit ...
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Echo CS-310 - page 24
24 X7503270007 © 08/2013 ECHO Inc. OPERATION CS-310 • Do not let the tip of the bar touch an ything while the engine is running. At cutting spee d the chain is moving at a high rate of speed. Should the tip co ntact a limb or log while the chain is moving, the tip will be p ushed upward with considerable force. This is known as kickback. Avoid i ...
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Echo CS-310 - page 25
CS-310 OPERATION © 08/2013 ECHO Inc. X7503270007 25 Begin the cut on the side to which the tree is to f all. Cut a notch about 1/3 of the w ay into th e tree. The position of this notch is impor tant since the tree will try to fall “into ” the notch. The f elling cut is made on the side oppo site the notch and at a le ve l about 5 cm (2 in.) a ...
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Echo CS-310 - page 26
26 X7503270007 © 08/2013 ECHO Inc. OPERATION CS-310 Bucking Buck ing is the sa wing of a log or f allen tree into smaller pieces . There are a f ew basic rules which apply to all b ucking operation s. • K eep both hands on the ha ndles at all times. • Suppor t logs if possib le. • When cutting on a slope or hillside , alwa ys stand uphill. K ...
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Echo CS-310 - page 27
CS-310 OPERATION © 08/2013 ECHO Inc. X7503270007 27 Chain And Guide Bar Combination The f ollowing combination s are recommended f or model CS-310. Use of replacement saw chain and/o r guide bar other than that specified, or operation without the “tip guard” in place, may cause severe kickback resulting in serious injury.Only use saw chain des ...
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Echo CS-310 - page 28
28 X7503270007 © 08/2013 ECHO Inc. MAINTENANCE CS-310 MAINTENANCE Moving parts can amputate fingers or cause severe injuries. Ke ep 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 befo re removing obstructions, clearing debris, or servi ...
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Echo CS-310 - page 29
CS-310 MAINTENANCE © 08/2013 ECHO Inc. X7503270007 29 Carburetor Adjustment Ev er y unit is run at the fa ctor y and the carb uretor is set in compliance with Emission Regulations . In addition, the carburetor is equipped with “ H ” (High Speed) and “ L ” (Lo w Speed) needle adjustment limite rs that prev ent settings outside acceptab le l ...
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Echo CS-310 - page 30
30 X7503270007 © 08/2013 ECHO Inc. MAINTENANCE CS-310 Air Filter 1. Check bef ore ev er y use. 2. Close chok e ( ). 3. Press hand guard f orward and close chok e. 4. Release the cylinder cov er latches (C) and remov e cylinder cov er (A) and air filter (B). 5. Lightly brush dust off air filter , or clean with compressed air , or replace the air fi ...
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Echo CS-310 - page 31
CS-310 MAINTENANCE © 08/2013 ECHO Inc. X7503270007 31 Oil Filter • Check periodically . • Do not allow dust to enter into oil tank. • A clogged oil filter (B) will aff ect the nor mal lubricating system. 1. Using a wire bent into the shape of a ho ok, pull filter out through gas por t, and inspect filter . 2. If the filter is dir ty , wash i ...
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Echo CS-310 - page 32
32 X7503270007 © 08/2013 ECHO Inc. MAINTENANCE CS-310 Cooling System Cleaning • Check periodically . • Clogged fins will result in poor engine cooling. 1. Remov e cylinder cov er and star ter . 2. Use compressed air or woode n tool to remov e dir t and dust from between fins to let cooling air pass easily . Spark Arrestor Muffler • The spark ...
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Echo CS-310 - page 33
CS-310 MAINTENANCE © 08/2013 ECHO Inc. X7503270007 33 Exhaust Port Cleaning Level 2. 1. Remov e cylinder cov er and remov e spar k plug lead. 2. Place piston at top dead center . 3. Remov e muffler . Check pa r ts f or wear or damage, and replace if necessary . 4. Use a wood or plastic scr aping tool to clean deposits from cylinder e xhaust por t. ...
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Echo CS-310 - page 34
34 X7503270007 © 08/2013 ECHO Inc. MAINTENANCE CS-310 Setting The Saw Chain Impor tant points f or proper maintenance of saw chain : • K eep the cutters sharp at all times. • K eep the left and the right cutters properly align ed. • Note that b lunt or irregular cutters will result in poor cutting perf or mance , increased vibration of ch ai ...
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Echo CS-310 - page 35
CS-310 MAINTENANCE © 08/2013 ECHO Inc. X7503270007 35 • Place the depth gaug e tool fir mly on guidebar so that depth gauge protrudes. Then file top of depth gauge with the flat file until flat with top of the d epth gauge tool. • One fifth of the file diameter remains abo ve cutter edge . • Be sure to round off the front ed ge of the depth ...
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Echo CS-310 - page 36
36 X7503270007 © 08/2013 ECHO Inc. TROUBLESHOOTING CS-310 TROUBLESHOOTING Fuel vapors are extremely flamm able and may cause fire and/or explosion. Ne ver test for ignition spark by grounding spark plug nea r cylinder plug hole, otherwise serious personal injury may result. ENGINE PROBLEM TR OU BLESHOOTING CHART Problem Ch eck Status Cause Remedy ...
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Echo CS-310 - page 37
CS-310 STORAGE © 08/2013 ECHO Inc. X7503270007 37 STORAGE Storage After Use • Inspect and adjust e v er y par t of the chain saw . • Completely clean e very par t and repair if necessar y . • Apply thin coating of oil on metal par ts to pre vent rust. • Remov e chain and guide bar . • Drain fuel tank completely . Press purge bulb 6 - 7 t ...
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Echo CS-310 - page 38
38 X7503270007 © 08/2013 ECHO Inc. TECHNICAL DATA CS-310 TECHNICAL DATA * T echnical data subject to change without notice . Model CS-310 Length 396 mm (15 .6 in.) Width 232 mm (9.1 in.) Height 273 mm (10.7 in.) Dry weight 4.0 kg (8.8 lb.) Without chain and guide bar Engine Air-cooled two-st roke single cylinder Displacem e nt 30.5 mL (1.861cu . i ...
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Echo CS-310 - page 39
CS-310 WARRANTY STATEMENTS © 08/2013 ECHO Inc. X7503270007 39 WARRANTY STATEMENTS ECHO LIMITED W ARRANTY ST A TEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY ECHO Incorporated’s Limited W arranty , provides to the original purchaser that this ECHO product is free from defects in materia l and workmanship ...
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Echo CS-310 - page 40
40 X7503270007 © 08/2013 ECHO Inc. WARRANTY STATEMENTS CS-310 PURCHASED REP AIR P ARTS, SHORT BLOCKS AND ACCESSORIES ...
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Echo CS-310 - page 41
CS-310 NOTES © 08/2013 ECHO Inc. X7503270007 41 NOTES ...
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Echo CS-310 - page 42
42 X7503270007 © 08/2013 ECHO Inc. NOTES CS-310 ...
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Echo CS-310 - page 43
CS-310 SERVICING INFORMATION © 08/2013 ECHO Inc. X7503270007 43 SERVICING INFORMATION Parts/Serial Number Genuine ECHO P ar ts and ECHO REPOWER™ P ar ts and Assemblies f or y our ECHO products are av ailable only from an A uthorized ECHO Dealer . When y ou do need to buy parts always hav e the Model Number and Serial Number of the unit with you. ...
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Echo CS-310 - page 44
ECHO , INCORPORA TED 400 O a kwood Ro a d L a ke Z u r ich, IL 60047 www .echo-u s a.com 44 C04511001001/ C04511999999 C04612001001/ C04612999999 ...
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