Echo CS-7310PW Operator'S Manual Download Page 21 | Manualshive

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CS-7310PW

DESCRIPTION

X7503340600

21

© 12/20 ECHO Incorporated

CHAIN SAW TERMS

•

FAST IDLE

-Throttle setting that causes engine to operate at a faster

speed for easier starting.

•

THROTTLE LATCH

- Device that sets idle speed to fast idle when choke

control is operated.

•

CHAIN BRAKE

- Stops the saw chain.

•

DRIVE SPROCKET

- Drives saw chain.

•

CLUTCH

- Turns drive sprocket 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 Device
15. Front Handle - For the left hand
16. Chain Catcher
17. Spiked Bumper
18. Chain Tension Adjuster
19. Chain Brake / Sprocket Guard
20 Choke Control Knob

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Summary of Contents for CS-7310PW

Page 1: ...exhaust 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: ...ormation 19 Description 20 Preparation for Use 22 Operation 25 Fuel 25 Chain Lubricant 28 Starting Cold Engine 29 Starting Warm Engine 32 Running 33 Stopping 34 Checking Chain Tension 34 Chain Lubrication Test 35 Cutting Instructions 35 Chain and Guide Bar Combination 40 Guide Bar 40 Maintenance 41 Skill Levels 41 Maintenance Intervals 42 Carburetor Adjustment 43 Air Filter 44 Spark Plug 45 Check ...

Page 3: ...peration 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 av...

Page 4: ...ease 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 informat...

Page 5: ...h 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 1 With a basic understanding of kickback you can reduce or eliminate the element of surprise Sudden surprise contributes to accidents 2 Keep a good firm grip on the saw with both hands ...

Page 6: ...lent 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 the chain will stop immediately Release the throttle to avoid possible damage to the engine or clutch Do not attempt to operate the engine with the brake locked Testing the Brake Start the engine on a solid level surface and run at a fast ...

Page 7: ... 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 operation You should inquire through local government offices your employer or your ...

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: ...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 chain saw down 12 Use extreme caution when cutting small size brush and saplings ...

Page 10: ...p 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 chain saw 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...

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 chain ...

Page 12: ...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 13: ...r 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 gr...

Page 14: ... 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 15: ...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 16: ...r 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 must be used to operate...

Page 17: ...orporated Note Not all symbols will appear on your unit 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 ...

Page 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 n...

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: ...ure 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 17 18 14 20 13 16 5 19 7 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 D...

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: ...cutters 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 dam...

Page 24: ...nuts 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: ... tertiary butyl 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 pro...

Page 26: ...ndling or serious personal injury will result Use an approved fuel container Mark fuel containers as containing 2 stroke mixture fuel DO NOT smoke near fuel DO NOT allow flames or 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 ta...

Page 27: ...troke oil to gasoline 3 Close container and shake to mix oil with gasoline 4 Add remaining gasoline close fuel container and remix Spilled fuel is a leading cause of hydrocarbon emissions Some locations may require 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 prec...

Page 28: ...Note Cap indication Fuel and oil tanks are indicated by the following illustrations Use bar and chain oil of high quality for this purpose Do not use used or reclaimed oil to avoid various oiler problems Use high quality bar and chain oil Use bar and chain oil of the following grades SAE No 30 in summer SAE No 10 in winter or when cutting resinous trees When refueling also refill chain oil Moving ...

Page 29: ...ipped 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 Contact local fire authorities for laws or regulations regarding fire prevention requirements Starting Cold Engine Make sure the bar and chain are free from any obstruction when starting the chain saw 1 Move chain brake lever...

Page 30: ... all the way out closed choke position After choke control knob is pulled and then knob is returned to original position throttle remains slightly open fast idle latch condition 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 B C ...

Page 31: ... possible position Note Do not allow recoil handle to snap back against the casing Note If engine does not start after 5 pulls repeat instructions After starting the engine immediately squeeze and then release throttle trigger to release fast idle throttle latch otherwise severe brake damage can occur Never use fast idle throttle latch for cutting Use the fast idle throttle latch only in starting ...

Page 32: ... 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 UP to RUN position 4 Press the decompression device B A B ...

Page 33: ...art 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 engine starts allow it to return to idle and ...

Page 34: ...d 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 authorized dealer to check and repair stop switch before starting the engine again Checking Chain Ten...

Page 35: ...nst objectionable or uncomfortable loud noises 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 kickback Avoid it In all circumstances the operation of the chain saw is a one man jo...

Page 36: ...aw cut Pushing the saw too hard will slow the engine and cutting will actually be more difficult Sap from palm trees may corrode metal parts unless proper saw maintenance is performed Make sure to clean metal parts from palm sap immediately after use Remove sprocket guard Clean wood chips and sawdust from guard and engine crankcase Never use metal tools for cleaning which can scratch the metal pai...

Page 37: ...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 directi...

Page 38: ... 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 caref...

Page 39: ...utting 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 a...

Page 40: ...de 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 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 Gauge 508 20 20H0PS3872 3 8 72LPX72CQ 72 610 24 24H0PS38...

Page 41: ...t 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 graded If the task is no...

Page 42: ...iler Inspect Adjust 1 Oil Filter Inspect 1 Fuel System Inspect 1 Guide Bar Sprocket Nose Inspect Clean 1 Saw Chain Inspect Sharpen Replace Tension ing 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 Sprocket Nose Inspect 1 3 Months Air Filter Replace 1 Oil Filter...

Page 43: ... has been factory adjusted to maintain satisfactory starting and durability performance up to 1 100 feet above sea level ASL 96 0 kPa To maintain proper engine operation above 1 100 feet ASL the carburetor might need to be adjusted by an authorized service dealer If the engine is adjusted for operation above 1 100 feet ASL the carburetor must be re adjusted when operating the engine below 1 100 fe...

Page 44: ...urn and repeat acceleration Continue adjustment until smooth acceleration results 7 Check idle speed and reset if necessary as described in item 5 If a tachometer is available idle speed should be set to value listed on specifications page When starting idling adjustment speed should be adjusted to prevent the saw chain from moving When you experience trouble with the carburetor contact your deale...

Page 45: ...and request your dealer to inspect or replace Fuel Filter Check periodically Do not allow dust to enter fuel tank A clogged filter C will cause difficulty in starting engine or abnormalities in engine performance 1 Pull filter out through gas port and inspect filter Do not damage fuel line while removing fuel filter from tank 2 When the filter is dirty replace it as follows a Do not remove the wir...

Page 46: ... prior to shipment from factory Always check oil discharge when in use Turn adjusting screw D counterclockwise to increase oil volume clockwise to decrease oil volume Do not turn the adjusting screw beyond the maximum or minimum 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 f...

Page 47: ...lean 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 oi...

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: ... spark arrestor screen J from muffler 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 Parts Required Muffler gasket 1 Remove air cleaner cover and remove spark plug lead 2 P...

Page 50: ...7 Replace air cleaner cover 8 Start engine and allow unit to warm up at idle for several minutes 9 Stop engine and re tighten mounting bolts or nuts to 8 11 N m 70 95 lbf in 10 Install guide bar and chain Adjust chain tension 11 Start engine and check for exhaust leaks between muffler and cylinder head Stop engine if leak is found and correct problem before operating chain saw Setting The Saw Chai...

Page 51: ...ower edge of the drive link sharp where indicated Setting Saw Chain For setting saw chain round file 5 5 mm 7 32 in diam and flat file are used Push file as shown To keep correct position and correct angle use a file holder Hold the file at a 10 angle from level Place the depth gauge tool firmly on guide bar so that depth gauge protrudes Then file top of depth gauge with the flat file until flat w...

Page 52: ...before using When chain has been filed on the bar supply sufficient oil to it move 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 To sharpen other chains follow cha...

Page 53: ...o 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 Interlock 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 accelerate properly Ai...

Page 54: ...ous 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 Remove chain and guide bar Engine runs but dies or Engine does not accelerate properly Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust Cooling ...

Page 55: ...mes 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 dealer or go to www echo usa com SPECIFICATIONS MODEL CS 7310PW Length 477 mm 18 8 in Width 312 mm 12 3 in Height 323 mm 12 7 in Dry weight 7 0 ...

Page 56: ...oline 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 type Floa...

Page 57: ...CS 7310PW PRODUCT REGISTRATION X7503340600 57 12 20 ECHO Incorporated ...

Page 58: ...NOTES CS 7310PW 58 X7503340600 12 20 ECHO Incorporated NOTES ...

Page 59: ...CS 7310PW NOTES X7503340600 59 12 20 ECHO Incorporated ...

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

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