Chain Saw Instruction Manual MODELS : CS-352 WARNING Users of this equipment risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. ECHO provides an operator’s manual and a safety manual. Both must be read and understood for proper and safe operation. Failure to do so could result in serious injury.
RULES FOR SAFE OPERATION A. Kickback Safety Precautions for Chain Saw Users WARNING! 1.With a basic understanding of kickback, you can reduce or eliminate the element of surprise. 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. Sudden surprise contributes to accidents. Tip contact in some cases may cause a lightning fast reverse REACTION, Kicking the guide bar up and 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 twohanded use. 11.Shut off the engine before setting the chain saw 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. 2.
CONTENTS RULES FOR SAFE OPERATION............................................................................. SYMBOLS AND SIGNS............................................................................................ PACKING LIST.......................................................................................................... NOMENCLATURE OF PARTS................................................................................. OPERATOR SAFETY.....................................................
SYMBOL FORM Symbol form/shape Symbol description/application Symbol form/shape Symbol description/application STOP WARNING!! Read and follow all safety precaution in the instruction manual Oil and gasoline mixture Wear eye, ear, and head protection Chain oil fill Chain brake operation Carburetor adjustment - Low speed mixture Emergency stop Carburetor adjustment - High speed mixture Choke control “Cold Start” position (choke closed) Carburetor adjustment - Idle speed DECALS CS-352 WARNING!! Rea
• • • • • 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.
PACKING LIST The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, guide bar and saw chain installation and other assembly may be necessary. After opening the carton, check for damage. Immediately notify your retailer or ECHO dealer of damaged or missing parts. Use the packing list to check for missing parts.
NOMENCLATURE OF PARTS MODELS : CS-352 WARNING 3 4 Chain Saw Instruction Manual 1 5 DANGER This chain saw is intended for professional or experienced chain saw operators. Read and understand the instructions contained in this manual and the Safety Manual and follow the rules for safe operation. Failure to do so could result in serious injury. X750015400 08/11 X7503270900 6 22 2 7 12 8 9 10 11 21 TO AVOID KICKBACK 1. Hold the chain saw firmly with both hands. 2.
NOMENCLATURE OF PARTS 1. Instruction manual - Included with unit. Read before operation and keep for future reference to learn proper, safe operating techniques. 11. Saw chain - Chain, serving as a cutting tool. 12. Bar tip guard - Anti-kickback device attached on the bar nose. 2. Safety manual - Describe operating and safety instructions for this chain saw. 13. Oil tank cap - For closing the oil tank. 14.
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. KICK GUARD® TO BAR INSTRUCTIONS Bolt (A) Dimple (D) 1. Install bolt (A) in rear hole (B) of Kick Guard® and through front hole (C) in guide bar. 2. IMPORTANT: Dimple (D) in Kick Guard® must engage recess (E) in guide bar. Kick Guard® Rear hole (B) 3. Tighten nut (F) and bolt (A) using 11 mm (7/16 in.) wrenches until snug.
Clutch 4. Unlock the chain brake, and 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. Guide bar studs Adjuster pin Guide bar adjuster hole 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 FUEL STATEMENT GASOLINE - Use 89 Octane [(R+M)/2] (mid grade or higher) gasoline or gasohol known to be good quality. Gasohol may contain up to 10 % Ethyl (grain) alcohol or 15 % MTBE (methyl teriary-butyl ether). Gasohol containing methyl (wood) alcohol is not approved. 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.
HANDLING FUEL DANGER Fuel is VERY flammable. Use extreme care when mixing, storing or handling or serious personal injury may result. • Use an approved fuel container. • 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! • NEVER refuel a unit with the engine running. • DO NOT fill fuel tanks indoors.
Emission Data emission control (exhaust & evaporative) EPA Phase 2 / 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).
WARNING Chain brake • After choke control knob is pulled and then knob is returned to original position, throttle remains a little open (latch condition). • If engine is started in this latch condition, chain starts to turn. Do not start engine before chain brake is activated. Ignition switch Start / Run CAUTION • After starting the engine, squeeze throttle trigger slightly to release throttle latch and pull front hand guard towards the operator immediately.
WHEN THE ENGINE IS WARM CAUTION Make sure the bar and chain are free from any obstruction when starting the chain saw. Chain brake • Move chain brake lever fully forward to lock chain brake before starting. • Confirm there is fuel and chain oil in the tanks. • Move ignition switch to “RUN” position. • Securely hold the chain saw as shown and pull starter handle. Choke control knob • Choke may be used if necessary, but after first firing sound, pull throttle trigger to release choke.
CHECKING CHAIN TENSION • Chain tension should be checked frequently during work and corrected as necessary. CAUTION Do not operate with a loose chain. 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 INSTRUCTION GENERAL CAUTION • Read the ECHO “CHAIN SAW SAFETY MANUAL” included with your chain saw for additional cutting and safety instructions.
The accepted way to hold the saw is to stand to the left of the saw with your left hand on the front handlebar 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 responses of the saw. Start the engine, see that it is running properly. Squeeze the trigger to open the throttle wide open and start the cut.
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 carefully so as not to cause kickback. The final cut is made by drawing the saw forward in the cut to reach the hinge.
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. Improper thrust cutting Kickback motion TESTING THE BRAKE • Start the engine on a solid level surface and run at a fast idle until warm.
AUTOMATIC CHAIN BRAKE End of the guide bar may be placed at the height of about 55 cm (22 in.). 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-352. Length mm (in) Guide Bar Part No. Double Guard 305 (12) 356 (14) 406 (16) 12A0CD3745 14A0CD3752 16A0CD3757 Saw chain Part No. Pitch mm (in) 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 unit is designed to provide many hours of trouble free service.
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. Idle adjusting screw Low speed needle (L) 1. Before adjusting carburetor clean or replace air filter and muffler “Spark Arrestor Screen”. 2. Make sure the bar and chain are properly adjusted. 3.
AIR FILTER Cylinder cover • Check before every use. • Press hand guard forward and close choke. • 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 latch. Air filter Cylinder cover latch Cylinder cover latch CHECK FUEL SYSTEM • Check before every use.
GUIDE BAR • 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. Groove Sprocket Oil hole SPROCKET Worn : 0.5 mm (0.02 in.) • A damaged sprocket will cause premature damage or wear of saw chain. - When the sprocket has worn out 0.5 mm (0.02 in.) or more, replace it.
Exhaust Port Cleaning Level 2 Parts Required: As needed: Muffler gasket 1. Remove cylinder cover and remove spark plug lead. 2. Place piston at top dead center. Remove muffler (A) and muffler gasket (B). 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. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder. A 4.
SETTING THE SAW CHAIN Preset tie strap Left hand cutter Drive link Top plate Tie strap Side plate Guard link Depth guage Right hand cutter 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 Properly filed cutters are shown in illustration.
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 No fuel at carburetor Fuel strainer clogged Fuel line clogged Carburetor Remedy 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 f
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.
Warranty Statements 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-352
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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, Type 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. Model No. ___________ Type _________SN.
