Chain Saw Instruction Manual MODEL : CS-310 WARNING Read rules for safe operation and instructions carefully. ECHO provides an Instruction Manual and a Safety Manual. Both must be read and understood for proper and safe operation.
RULES FOR SAFE OPERATION A. Kickback Safety Precautions for Chain Saw Users WARNING! KICKBACK may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse REACTION, Kicking the guide bar up and back towards the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
B. Other Safety Precautions 1.Do not operate a chain saw with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A chain saw is intended for two-handed use. 11. Shut off the engine before setting the chain saw down. 2.Do not operate a chain saw when you are fatigued. 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.
• • • • • WARNING During operation, the muffler or catalytic muffler and surrounding cover become hot. Never suspend the saw on a lanyard with the engine running. Always use the saw from the right-hand side of your body – NEVER from the left side. Always wear proper safety clothing to protect your lower body from sharp saw chain and hot muffler. Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result.
CONTENTS RULES FOR SAFE OPERATION............................................................................. SYMBOLS AND SIGNS............................................................................................ EMISSION DATA...................................................................................................... PACKING LIST.......................................................................................................... NOMENCLATURE OF PARTS..................................
SYMBOL FORM DECALS Part Number X503-009360 Part Number X524-002190 CS-310 REPLACEMENT BAR AND CHAIN GUIDE BAR* CHAIN* PART NO. TYPE LINKS 12” 12A0CD3745 OREGON 91VG / 91P 45 14” 14A0CD3752 OREGON 91VG / 91P 52 16” 16A0CD3757 OREGON 91VG / 91P 57 WARNING!! Read and follow all safety precaution in the instruction manual. Failure to follow instructions could result in serious personal injury. Note: There may be other replacement components for achieving kickback protection.
Emission Data emission control (exhaust & evaporative) EPA 2010 and Later and/or C.A.R.B. TIER III The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only. An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by engine FAMILY).
NOMENCLATURE OF PARTS 3 4 1 5 6 7 2 12 8 9 10 11 21 Part Number 89019130131 TO AVOID KICKBACK 89019130131 1. Hold the chain saw firmly with both hands. 2. Don’t let the nose of the guide bar contact any obstruction. 3. Tip contact may suddenly move the guide bar upward and backward, which may cause serious injury. X503-009360 Part Number X503-009360 CS-310 WARNING!! Read and follow all safety precaution in the instruction manual.
NOMENCLATURE OF PARTS 1. Instruction manual - Included with unit. Read before operation and keep for future reference to learn proper, safe operating techniques. 2. Safety manual - Describe operating and safety instructions for this chain saw. 3. Front hand guard - Guard between the front handle and the saw chain for protecting the hand from injuries and aiding in control of the chain saw if the hand slips off the handle. This guard is used to lock the chain brake which is to stop the saw chain rotation.
OPERATOR SAFETY VIBRATION AND COLD • It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning followed by loss of color and numbness in the fingers. The following precautions are strongly recommended because the minimum exposure which might trigger the ailment is unknown.
SPARK ARRESTOR MUFFLER • The spark arrestor muffler controls the exhaust noise and prevents hot, glowing particles of carbon from leaving the muffler. Make sure the spark arrestor screen is in good repair and properly seated in the muffler. • Certain internal combustion engines operated on forest, brush, and/or grass-covered areas in the states of Washington, Oregon, Idaho, California, Minnesota, New Jersey and Maine, are required to be equipped with a spark arrestor.
PREPARATION FOR USE WARNING Saw chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. NOTE The machine may be delivered with guide bar, tip guard, and saw chain separated. Install guide bar, tip guard, and saw chain as follows. Bolt (A) Dimple (D) KICKGUARD®TOBARINSTRUCTIONS Tools Needed: Two 11 mm (7/16 in.) Wrenches. For saws with Kick Guard® P/N 2893201 and Symmetrical Low-Kick type (Double Guard) guide bars. Kick Guard® Rear hole (B) 1.
4. Mount guide bar on studs and slide toward clutch to make saw chain installation easier. Install chain with cutters on top of guide bar facing forward. 5. Install the clutch cover over the guide bar studs. Ensure chain tension adjuster pin fits into the guide bar adjuster hole. Tighten clutch cover nuts finger tight.
Fuel and Lubricant NOTICE: Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor performance, or severe engine damage and void the product warranty. Read and follow instructions in the Storage section of this manual. fuel statement WARNING 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.
Fuel Mix Chart 50:1 Mixing Instructions 1. Fill an approved fuel container with half of the required amount of gasoline. 2. Add the proper amount of 2-stroke oil to gasoline. 3. Close container and shake to mix oil with gasoline. 4. Add remaining gasoline, close fuel container, and remix. IMPORTANT Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage. After use • DO NOT store a unit with fuel in its tank.
OPERATION WARNING Moving parts can amputate fingers or cause severe injuries. 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. WARNING 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.
Chain brake WHEN THE ENGINE IS COLD CAUTION Make sure the bar and chain are free from any obstruction when starting the chain saw. Ignition switch Start / Run Choke control knob Purge pump Choke • Move chain brake lever fully forward to lock chain brake before starting. • Fill the fuel tank with fuel mixture. Do not over fill. • Fill the chain oil tank with lubricant. Do not over fill. • Move ignition switch to “RUN” position. • Push purge pump 3 to 4 times or until fuel is visible in purge pump.
RUNNING Unlock chain brake warning 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 your dealer. • When engine starts, keep idling for a few minutes. • Set the brake lever in the unlocked position before starting to cut. Ignition switch Stop • Pull throttle trigger gradually and increase revolution of the engine.
CUTTING INSTRUCTION GENERAL CAUTION • ReadtheECHO“CHAINSAWSAFETYMANUAL”includedwith your chain saw for additional cutting and safety instructions. • Wearsuitablehearingprotectionsuchasearmuffsorearplugs toprotectagainstobjectionableoruncomfortableloudnoises. • 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.
FELLING THE TREE 3 m (10 feet) warning Retreat Direction of fall A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power line, or another tree. There are ways to make a tree fall where you want it, so first decide where that is! 45° Retreat A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power-line, or another tree.
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 saw overhead or aligned vertically with your body. If the saw should kickback, you may not have enough control to prevent possible injury. Bucking Bucking is the sawing of a log or fallen tree into smaller pieces. There are a few basic rules which apply to all bucking operations.
CHAIN BRAKE OPERATION Kickback motion • 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 idle until warm. Kickback • Hold the saw firmly by the handles and accelerate the engine to a fast idle.
End of the guide bar may be placed at the height of about 55 cm (22 in.). 55 cm (22 in.) 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 55 cm (22 in.) above a wooden surface. Right hand should hold the rear handle, and left hand should hold the front handle. 3.
CHAIN AND GUIDE BAR COMBINATION The following combinations are recommended for model CS-310. Length mm (in) 305 (12) 356 (14) 406 (16) Guide Bar ECHO Part No. Double Guard Pitch mm (in) 12A0CD3745 14A0CD3752 16A0CD3757 Saw chain Type (OREGON) 9.53 (3/8) 9.53 (3/8) 9.
MAINTENANCE AND CARE WARNING Moving parts can amputate fingers or cause severe injuries. 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. Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces. Your ECHO chain saw is designed to provide many hours of trouble free service.
CARBURETOR ADJUSTMENT Idle adjusting screw Low speed needle (L) 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. High speed needle (H) Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made.
AIR FILTER • Check before every use. • Release the cylinder cover latches, and remove the cylinder cover and air filter. • Brush off dust lightly, or clean with compressed air, or replace the air filter. • Reinstall air filter and the cylinder cover, engage latches. Cylinder cover Cylinder cover latch Air filter CHECK FUEL SYSTEM Cylinder cover latch • Check before every use. • After refueling, make sure fuel does not leak from around fuel pipe, fuel grommet or fuel tank cap.
GUIDE BAR Groove Sprocket Oil hole • Clean before using. - Clean the groove of the guide bar with a small screwdriver. - Clean oil holes with a wire. • Reverse guide bar periodically. • Check sprocket and the clutch and clean the bar mount area before installation of the bar. Replace either or both if worn. SPROCKET Worn : 0.5 mm (0.020 in.) • A damaged sprocket will cause premature damage or wear of saw chain. - When the sprocket has worn out 0.5 mm (0.020 in.) or more, replace it.
Exhaust Port Cleaning Level 2 Tools required: Wood or plastic scraper, Cross Head Screwdriver, 8mm Wrench Parts Required: As needed: Muffler gasket 1. Remove air filter cover and remove spark plug lead. 2. Place piston at top dead center. Remove muffler (A) and muffler gasket (B ). 3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. IMPORTANT Never use a metal tool to scrape carbon from the exhaust port.
SETTING THE SAW CHAIN Preset tie strap Left hand cutter Drive link Top plate Tie strap Side plate Guard link Depth Right hand cutter Sharpen lower edge Important points for proper maintenance of saw chain: • Keep the cutters sharp at all times. • Keep the left and the right cutters properly aligned. - Note that blunt or irregular cutters will result in poor cutting performance, increased vibration of chains and premature breakage of the saw chain.
1/5 One fifth of file diameter remains above cutter edge • 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 with top of the depth gauge tool. Depth gauge tool Remove until flat with tool - Be sure to round off the front edge of the depth gauge. Round off the edge 91P :85° 91VG :80° 30° Top plate filing angle Side plate angle 91P :50° 91VG :60° 0.64 mm (0.025 in.
TROUBLESHOOTING ENGINE PROBLEM TROUBLEShOOTING ChART Problem C h eck Fuel at carburetor Fuel at cylinder Engine cranks starts hard/ doesn't start Engine runs, but dies or does not accelerate properly Engine does not crank Status C au se Remedy No fuel at carburetor Fuel strainer clogged Fuel line clogged Carburetor Clean or replace Clean or replace See your Echo dealer No fuel at cylinder Carburetor See your Echo dealer Muffler wet with fuel Fuel Mixture too rich Open choke Clean/replace air
STORAGE AFTER USE • Inspect and adjust every part of the chain saw. - Completely clean every part and repair if necessary. - Apply thin coating of oil on metal parts to prevent rust. • Remove chain and guide bar. • Drain fuel tank, pull starter slowly a few times to drain fuel from carburetor. • Pour a small amount of clean motor oil into spark plug hole, pull starter and crank the engine until piston reaches: TOP DEAD CENTER. • Store in a dry area, free from dust.
ECHO LIMITED WARRANTY STATEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY ECHO Incorporated’s Limited Warranty, provides to the original purchaser that this ECHO product is free from defects in material and workmanship.
PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES • 90-day residential, or non-income producing warranty • 30-day commercial, institutional, agricultural, industrial, income producing, or rental application warranty ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS This ECHO two-stroke engine power product is a quality-engineered unit which has been manufactured to exact tolerances to provide superior performance.
ECHO INCORPORATED EMISSION CONTROL WARRANTY STATEMENT FOR ECHO AND SHINDAIWA BRANDS The Environmental Protection Agency (EPA) and the California Air Resources Board (C.A.R.B.) and ECHO Incorporated (ECHO Inc.) are pleased to explain the emission control system warranty on your 2010 and later equipment/small off-road engine (SORE). New equipment/SORE must be designed, built and equipped to meet stringent EPA and C.A.R.B. anti-smog standards. ECHO Inc.
notes 37 CS-310
notes CS-310 38
notes 39 CS-310
Servicing Information parts/serial number Genuine ECHO Parts and ECHO REPOWER™ Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. You can find these numbers on the engine housing. For future reference, write them in the space provided below.
