Echo CS-7310P Operator'S Manual Download

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CS-7310P

SAFETY

X7503340002

Other Safety Precautions

Do not operate a chainsaw with one hand! Serious injury to the

operator, helpers, bystanders, or any combination of these persons

may result from one-handed operation. A chainsaw is intended for two-

handed use.

Do not operate a chainsaw 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 chainsaw at least 3 m

(10 feet) from the fueling point before starting the engine.

Do not allow other persons to be near the chainsaw when starting or

cutting with the chainsaw. 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 chainsaw with the engine stopped, the guide bar and saw

chain to the rear, and the muffler away from your body.

10. Do not operate a chainsaw 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

because slender material may catch the saw chain and be whipped

toward you or pull you off balance.

13. When cutting a limb that is under tension, be alert for spring-back so

that you will not be struck when the tension in the wood fibers is

released.

14. Keep the handles dry, clean, and free of oil or fuel mixture.
15. Operate the chainsaw only in well ventilated areas.
16. Do not operate a chainsaw in a tree unless you have been specifically

trained to do so.

17. All chainsaw service, other than items listed in the Instruction manual

maintenance instructions, should be performed by competent 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.)

Summary of Contents for CS-7310P

Page 1: ...xhaust from this product contains chemicals known to 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 ...

Page 2: ... 19 Description 20 Preparation for Use 22 Operation 25 Fuel 25 Chain Lubricant 29 Winter Operation 29 Starting Cold Engine 30 Starting Warm Engine 32 Running 33 Stopping 34 Checking Chain Tension 35 Chain Lubrication Test 35 Cutting Instructions 35 Chain and Guide Bar Combination 41 Guide Bar 41 Maintenance 42 Skill Levels 42 Maintenance Intervals 43 Air Filter 44 Spark Plug 44 Check Fuel System 4...

Page 3: ...nformation for safety operation 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 and Serial Number Genuine ECHO parts and assemblies fo...

Page 4: ...lease know the model and serial number of your unit Product Registration Register your ECHO equipment online 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 informat...

Page 5: ... 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 chainsaw user you should take several steps to keep your cutting jobs free from accident or injury 1 With a basic understanding of ...

Page 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 ...

Page 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 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...

Page 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 h...

Page 9: ...topped the guide bar and saw chain to the rear and the muffler away from your body 10 Do not operate a chainsaw 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 bec...

Page 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 Chainsaws 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 to ...

Page 11: ...t be visible through openings Using improper replacement components or removing 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 Front hand guard a structural barrier between the front handle of a chains...

Page 12: ...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...

Page 13: ...eed 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 brake for approved bar and chain combinations Both of the operator s hands ...

Page 14: ...symbols 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 Bulb Decompression Device STOP Momentary STOP Switch Symbol Description Symbol Description STOP STOP ...

Page 15: ...ed 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 r...

Page 16: ...her 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 ...

Page 17: ... 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 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...

Page 18: ...n 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 stop using all power equipment and consult a doctor if you feel tingling num...

Page 19: ...el 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 se...

Page 20: ...re the decal s is legible and 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 6 8 10 11 12 15 9 20 18 14 13 17 5 7 16 19 20 20H0PS3872 72LPX72CQ 51 8 38 3 30 8 ...

Page 21: ...when engine rpm is fast enough to provide the power needed for cutting 1 Guide Bar 2 Chain Brake Lever Front Hand Guard 3 Spark Plug 4 Air Cleaner Cover 5 Stop Switch 6 Throttle Trigger Lockout 7 Rear Handle For the right hand 8 Rear Hand Guard 9 Throttle Trigger 10 Fuel Tank Cap 11 Starter Handle 12 Oil Tank Cap 13 Spark Arrestor Muffler or Spark Arrestor Muffler with Catalyst 14 Decompression De...

Page 22: ...procket guard loosen each nut one full turn then completely loosen each nut If one nut remains tight while the other is fully loosened nut will not remain captive 2 Loosen sprocket guard nuts A and remove sprocket guard B 3 Remove guide bar and saw chain if necessary Note See Maintenance section for guide bar and saw chain maintenance procedures 4 For initial setup install spiked bumpers Bumper wi...

Page 23: ...utters on top of guide bar facing forward 7 Install sprocket guard over guide bar studs Tighten sprocket guard nuts finger tight 8 Adjust saw chain tension as instructed in Adjusting Chain Tension 9 Install spark plug lead and air cleaner cover Adjusting Chain Tension Always loosen sprocket guard nuts before turning the chain tension adjuster otherwise the sprocket guard and tensioner will be dama...

Page 24: ...uts with the bar nose held up 4 Pull the chain around the bar by hand Loosen the adjustment if you feel tight spots Tighten guide bar nuts to 20 23 N m 200 to 230 kgf cm 175 200 lbf in DO NOT over tighten nuts Damage to saw can result 5 Assemble components in reverse order 6 Keep chain properly tensioned at all times Note All chains require frequent adjustments I ...

Page 25: ... ether Gasoline containing methanol wood alcohol is NOT approved Use of ECHO branded fuel is recommended to extend engine life in all air cooled 2 stroke and 2 4 stroke hybrid engines Two Stroke Oil A two stroke engine oil such as ECHO branded 2 stroke oils meeting ISO L EGD ISO CD 13738 and J A S O FD Standards must be used ECHO branded 2 stroke oils meet these standards Engine problems due to in...

Page 26: ...r sparks near fuel Fuel tanks cans may be under pressure Always loosen fuel caps slowly allowing pressure to equalize NEVER refuel a unit when the engine is HOT or RUNNING DO NOT fill fuel tanks indoors ALWAYS fill fuel tanks outdoors over bare ground DO NOT overfill fuel tank Wipe up spills immediately Securely tighten fuel tank cap and close fuel container after refueling Inspect for fuel leakag...

Page 27: ...e the use of automatic fuel shut off containers to reduce fuel spillage 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 s...

Page 28: ...r death Exhaust can cause serious burns ALWAYS position unit so that exhaust is directed away from your face and body Operation of this equipment may create sparks that can start fires around dry vegetation This unit is equipped with a spark arrestor to prevent discharge of hot particles from the engine Metal cutters can also create sparks if the cutter strikes rocks metal or other hard objects Co...

Page 29: ...en cutting resinous trees When refueling also refill chain oil Winter Operation Change the air shutter to its cold position with the snowman mark facing up when the outside air temperature is 41 F 5 C or lower For operation above 41 F 5 C return the air shutter to its original position Failing to do so will cause the engine to be overheated 1 Cylinder cover 2 Air shutter 3 Cold weather position sn...

Page 30: ... from any obstruction when starting the chainsaw 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 UP to RUN position 5 Press the decompression device B A B ...

Page 31: ...n The chain will attempt to move when engine is started with fast idle throttle latch engaged Do not start engine before chain brake is locked 7 Securely hold the chainsaw and pull starter handle until first starting sound 8 Push choke control knob C all the way in open choke position 9 Pull starter handle to start the engine Note Do not pull starter rope out to the maximum possible position Note ...

Page 32: ...n occur Never use fast idle throttle latch for cutting Use the fast idle throttle latch only in starting Note Do not increase engine speed while chain brake is locked Severe brake damage will result Starting Warm Engine Make sure the bar and chain are free from any obstruction when starting the chainsaw 1 Move chain brake lever fully FORWARD to LOCK chain brake before starting 2 Confirm there is f...

Page 33: ...turn engine to idle Note If engine does not start after 5 pulls use cold start procedure Do not increase engine speed while chain brake is locked Severe brake damage will result Running The saw chain should not move at idle otherwise serious personal injury can result Note If saw chain moves adjust carburetor according to Carburetor Adjustment instructions in this manual or see your dealer 1 After...

Page 34: ... 5 Confirm proper acceleration and lubrication 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 and allow engine to idle 2 Move stop switch A DOWN to STOP position Note If engine does not stop pull choke control knob out fully to stop engine Note Return the unit to your a...

Page 35: ...ication 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 chainsaw 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 uncomfortable lo...

Page 36: ...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...

Page 37: ...loth and warm water with soap Rinse with clean water and dry metal surfaces Apply a light coating of engine 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 chai...

Page 38: ...cking 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 cut is made on the side opposite the notch and at a level about 5 cm 2 in above the bottom of the notch Do not try to cut through to the notch with the felling cut The remai...

Page 39: ... 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 bucking Never stand on the tree that you are limbing When limbing caution is the word Be careful of the tip touching other limbs Always use both hands Don t cut with the sa...

Page 40: ... 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 us...

Page 41: ...ars 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 same length and nose radius as a sprocket nose bar Guide Bar Saw Chain Length mm in ECHO Part No Pitch in Type Links 0 050 in Gauge 508 20 20H0PS3872 3 8 72LPX72CQ 72 610 24 24H0PS388...

Page 42: ...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 unsure or are not equipped with the necessary tools we recommend that you take your unit to a Servicing Dealer for maintenance To help you decide whether you want to DO IT YOURSELF or have the Dealer do it each maintenance task has been grade...

Page 43: ...ly Or Before Use Air Filter Inspect Clean 1 Automatic Oiler Inspect Adjust 1 Oil Filter Inspect 1 Fuel System Inspect 1 Guide Bar and Sprocket Nose Inspect Clean 1 Saw Chain Inspect Sharpen Replace Tensioning 2 Sprocket Inspect Replace 2 Cooling System Inspect Clean 2 Recoil Starter Rope Inspect Clean 1 Screws Nuts Bolts Inspect Tighten Replace 1 Every Refuel Fuel System Inspect 1 Guide Bar and Sp...

Page 44: ...d air filter B 4 Lightly brush dust off air filter or clean with compressed air or replace the air filter 5 Install air filter and cover Spark Plug Check periodically The standard spark gap is 0 4 0 5 mm 0 016 0 02 in Fastening torque 15 17 N m 130 150 lbf lin 1 Remove air cleaner cover and remove spark plug 2 Correct the spark gap if it is wider or narrower than the standard gap Cylinder Exhaust ...

Page 45: ... filter is dirty replace it as follows a Do not remove the wire coil clamp to remove the fuel filter Pinch the fuel filter with the fingers on one hand and the fuel line with the other hand Pull and twist slightly to separate b Install the new filter with the reverse action 3 When the inside of the fuel tank is dirty rinse the tank out with gasoline to clean it Note Federal EPA regulations require...

Page 46: ...m limit of volume adjustment Oil Filter Check periodically Do not allow dust to enter into oil tank A clogged oil filter E will affect the normal lubricating system 1 Pull filter out through oil port and inspect filter 2 If the filter is dirty wash it in gasoline or replace it as follows a Do not remove the wire coil clamp to remove the filter Pinch the filter with the fingers on one hand and the ...

Page 47: ...an the guide bar mount area before installing the guide bar Sprocket A damaged sprocket will cause premature damage or wear of saw chain When the sprocket has worn 0 5 mm 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 ...

Page 48: ...fler 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 ...

Page 49: ...I from muffler J body 3 Clean carbon deposits from muffler components 4 Replace screen if it is cracked or has holes burned through 5 Assemble components in reverse order When cleaning carbon deposit be careful not to damage the catalytic element inside muffler Exhaust Port Cleaning Level 2 1 Remove air cleaner cover and remove spark plug lead 2 Place piston at top dead center 3 Remove muffler Che...

Page 50: ...ler and cylinder head Stop engine if leak is found and correct problem before operating chainsaw 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 H High Speed and L Low Speed needle adjustment limiters that prevent settings outside acceptable limits Engine Break In New engines must b...

Page 51: ...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 serious personal injury can result 6 Accelerate to full throttle for 2 3 seconds to clear any excess fuel in the engine then return to idle Accelerate...

Page 52: ...ion 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 the Saw Chain For setting saw chain round file 5 5 mm 7 32 in diameter and flat file are used Push file as shown To keep correct position and correct angle use a file holder Tie Strap Right Hand Cutter Drive L...

Page 53: ...he depth gauge tool firmly on guide bar so that depth gauge protrudes Then file top of depth gauge with the flat file until flat with top of the depth gauge tool Be sure 1 5th or 20 of the file diameter remains above cutter edge Be sure to round off the front edge of the depth gauge 10 Depth Gauge Tool 1 5 ...

Page 54: ...ufficient oil to it move the chain slowly to wash away the filings before using again If the chainsaw 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 60 Side plate angle 25 Top p...

Page 55: ... 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 4 0 5 mm 0 016 0 02 in Clean or replace plug Engine runs but dies or Engine does not acceler ate properly A...

Page 56: ...cedures Serious personal injury can result Inspect and adjust every part of the chainsaw 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 ...

Page 57: ...e where fuel fumes may accumulate or reach an open flame or spark Do not lend or rent your chainsaw 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 dealer or go to www echo usa com SPECIFICATIONS MODEL CS 7310P Length 477 mm 18 8 in Width 249 mm 9 8 in Height 323 mm 12 7 in Dry...

Page 58: ...0047 Gasoline Use 89 octane unleaded Do not use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Do not use alternative fuels such as E 15 or E 85 Oil ISO L EGD ISO CD 13738 and JASO M345 FD two stroke air cooled engine oil Oiling system Adjustable automatic oiler Chain oil capacity 360 mL 12 17 US fl oz Starter system Automatic rewind starter Clutch Centrifugal type Sprocket t...

Page 59: ...CS 7310P PRODUCT REGISTRATION X7503340002 59 11 21 ECHO Incorporated ECHO Incorporated ...

Page 60: ...ECHO INCORPORATED 400 Oakwood Road Lake Zurich IL 60047 www echo usa com C80915001001 C80915999999 ...

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