EPA II EPA II EPA I Operator’s manual (EPA) Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Key to symbols Refuelling. WARNING! Chain saws can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. Filling with oil and adjusting oil flow. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Always wear: • Approved protective helmet • Approved hearing protection • Protective goggles or a visor Both of the operator′s hands must be used to operate the chain saw.
CONTENTS Contents KEY TO SYMBOLS Key to symbols .............................................................. CONTENTS Contents ....................................................................... Before using a new chain saw ...................................... SAFETY INSTRUCTIONS Personal protective equipment ...................................... Machine′s safety equipment ......................................... Checking, maintaining and servicing the machine′s safety equipment ..................
CONTENTS Before using a new chain saw • Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. • Check that the cutting equipment is correctly fitted and adjusted. See instructions under the heading Assembly. • Refuel, start the chain saw and check the carburettor settings. See the instructions under the headings Fuel Handling, Starting and Stopping, and Carburettor.
SAFETY INSTRUCTIONS Personal protective equipment ! WARNING! Most chain saw accidents happen when the chain touches the operator. You must use approved personal protective equipment whenever you use the machine. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment. ! WARNING! Long or continuous exposure to high noise levels may cause permanent hearing impairment.
SAFETY INSTRUCTIONS Chain brake and front hand guard due to kickback, you should also apply the chain brake manually if there is a risk of the chain accidentally hitting anyone or anything close by. Your chain saw is equipped with a chain brake that is designed to stop the chain immediately if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them. Take care when using your saw and make sure the kickback zone of the bar never touches any object.
SAFETY INSTRUCTIONS it cannot affect the movement of the front hand guard, the chain brake can only be activated by the inertia of the counterweight. • The inertia activated chain brake is a valuable feature but there are certain factors to remember (see point above). Throttle lock The throttle lock is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B).
SAFETY INSTRUCTIONS Muffler Checking the front hand guard The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user. Make sure the front hand guard is not damaged and that there are no visible defects such as cracks. ! WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start a fire.
SAFETY INSTRUCTIONS Grasp the chain saw firmly, wrapping your fingers and thumbs around the handles. Right hand guard Check that the right hand guard is not damaged and that there are no visible defects, such as cracks. Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let go of the front handle. The chain should stop immediately.
SAFETY INSTRUCTIONS If the muffler on your machine is fitted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage. Never use a muffler if the spark arrestor mesh is missing or defective. ! WARNING! Never use a machine with faulty safety equipment. The machine’s safety equipment must be checked and maintained as described in this section.
SAFETY INSTRUCTIONS Chain Level of kickback reduction Cutting link Drive link Side link • Chain pitch (inches) • Drive link width (mm/inches) • Number of drive links. • Level of kickback reduction. The level of kickback reduction offered by a chain is only indicated by its model number. See the Technical data section to find the model numbers of chains that are recommended for use with your model of chain saw.
SAFETY INSTRUCTIONS When you sharpen a cutting tooth there are five important factors to remember. 1 Sharpening cutting teeth Filing angle To sharpen cutting teeth you will need a round file and a file gauge. See the Technical data section for information on the size of file and gauge that are recommended for the chain fitted to your chain saw. 2 3 Cutting angle • Check that the chain is correctly tensioned. A slack chain will move sideways, making it more difficult to sharpen correctly.
SAFETY INSTRUCTIONS • We recommend that you use our raker gauge to achieve the correct clearance and bevel on the raker lip. ! WARNING! The risk of kickback is increased if the raker clearance is too large! Setting the raker clearance • Before setting the raker clearance the cutting teeth should be newly sharpened. We recommend that you adjust the raker clearance every third time you sharpen the chain. NOTE! This recommendation assumes that the length of the cutting teeth is not reduced excessively.
SAFETY INSTRUCTIONS Filling with chain oil • All our chain saws have an automatic chain lubrication system. On some models the oil flow is also adjustable. • The sizes of the chain oil tank and fuel tank have been chosen so that the engine will run out of fuel before running out of oil. This means that you should never run with a dry chain.
SAFETY INSTRUCTIONS We recommend you compare the existing chain with a new chain to decide how badly the existing chain is worn. ! WARNING! Most chain saw accidents happen when the chain touches the operator. Wear personal protective equipment. See instructions under the heading Personal protective equipment. Do not tackle any job that you feel you are not adequately trained for.
SAFETY INSTRUCTIONS Kickback only occurs if the kickback zone of the bar touches an object. 5 In order to keep control of your saw, always maintain a firm foothold. Never work on a ladder, in a tree or on any other insecure support. 6 Always use a fast cutting speed, i.e. full throttle. 7 Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting on the push stroke. The chain tries to push the chain saw back towards the user.
SAFETY INSTRUCTIONS General safety precautions • Chain saws are designed solely for cutting wood. The only accessories you may use with this engine unit are the combinations of bars and chains we recommend in the Technical data section. • Never use the machine if you are tired, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination. • Wear personal protective equipment.
SAFETY INSTRUCTIONS Fuel safety General working instructions ! ! WARNING! Fuel and fuel vapour are highly flammable. Take care when handling fuel and chain oil. Be aware of the risks of fire, explosion and those associated with inhalation. • Never refuel the machine while the engine is running. • Make sure there is plenty of ventilation when refuelling or mixing fuel (gasoline and 2-stroke oil). • Move the machine at least 3 m from the refuelling point before starting it.
SAFETY INSTRUCTIONS • • • Take the utmost care when cutting through branches or logs that are in tension. A log or branch that is in tension can suddenly spring back into its natural position before or after you cut it. If you stand on the wrong side or start cutting in the wrong place it may strike you or your chain saw, so that you lose control. Both situations could cause serious injury. Before moving your chain saw switch off the engine and lock the chain using the chain brake.
SAFETY INSTRUCTIONS Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut. Maintain full throttle but be prepared for what might happen. Finish by cutting from below so that the two cuts meet. Limbing When limbing thick branches you should use the same approach as for cutting. Cut difficult branches piece by piece. 1 If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.
SAFETY INSTRUCTIONS • Arrangement of branches • Weight of snow Next make the bottom cut so that it finishes exactly at the end of the top cut. The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°. You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended.
SAFETY INSTRUCTIONS All control over the felling direction is lost if the felling hinge is too narrow or non-existent, or if the directional cuts and felling cut are badly placed. Keep the trunk between you and the chain saw as you move along the trunk. Cutting the trunk into logs See instructions under the heading Basic cutting technique.
WHAT IS WHAT? What is what on the chain saw? 1 Cylinder cover 16 Spike bumper 2 Front handle 17 Chain catcher (Catches chain if it jumps or breaks.) 3 Front hand guard 18 Clutch cover 4 Starter 5 Chain oil tank 19 Right hand guard (Protects right hand if chain breaks or jumps.) 6 Starter handle 7 Adjuster screws, carburettor 8 Choke control/Start throttle lock 9 Rear handle 10 Stop switch (Ignition on/off switch.
ASSEMBLY Fitting the bar and chain ! Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar. WARNING! Always wear gloves, when working with the chain, in order to protect your hands from injury. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle.
FUEL HANDLING Fuel Mixing CAUTION! The machine is equipped with a two-stroke engine and must always been run using a mixture of gasoline and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture. • Always mix the gasoline and oil in a clean container intended for fuel.
FUEL HANDLING Fuelling ! WARNING! Taking the following precautions, will lessen the risk of fire: Do not smoke or place hot objects near fuel. Always shut off the engine before refuelling. When refuelling, open the fuel cap slowly so that any excess pressure is released gently. Tighten the fuel cap carefully after refuelling. Always move the machine away from the refuelling area before starting. Clean the area around the fuel cap. Clean the fuel and chain oil tanks regularly.
STARTING AND STOPPING Starting and stopping ! Starting WARNING! Note the following before starting: Never start a chain saw unless the bar, chain and all covers are fitted correctly. Otherwise the clutch can come loose and cause personal injuries. Grip the front handle with your left hand. Hold the chain saw on the ground by placing your right foot through the rear handle.
MAINTENANCE Carburettor Your Jonsered product has been designed and manufactured to specifications that reduce harmful emissions. After your unit has been run 8-10 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and producing the least amount of harmful emissions after break in, have your authorized servicing dealer, who has a revolution counter at his disposal, to adjust your carburetor for optimum operating conditions.
MAINTENANCE “whistles“ the setting is too lean. If there is too much exhaust gas at the same time as the machine “4-cycles” much, the setting is too rich. Turn the high speed needle H until the setting sounds correct. • Undo the screw in the centre of the pulley and remove the pulley. Insert and fasten a new starter cord to the pulley. Wind approx. 3 turns of the starter cord onto the pulley. Connect the pulley to the recoil spring so that the end of the spring engages in the pulley.
MAINTENANCE Fitting the starter Spark plug • To fit the starter, first pull out the starter cord and place the starter in position against the crankcase. Then slowly release the starter cord so that the pulley engages with the pawls. The spark plug condition is influenced by: • Fit and tighten the screws that hold the starter. • Incorrect carburettor adjustment. • Wrong fuel mixture (too much oil). • A dirty air filter.
MAINTENANCE Needle bearing lubrication Cooling system The clutch drum is fitted with one of the following drive sprockets: To keep the working temperature as low as possible the machine is equipped with a cooling system. • A Spur sprocket (the chain sprocket is welded on the drum) The cooling system consists of: • B Rim sprocket (replaceable) 1 Air intake on the starter. 2 Air guide plate. 3 Fins on the flywheel. 4 Cooling fins on the cylinder.
MAINTENANCE Winter use During cold weather and under powder snow conditions, operating problems can arise due to: • Too low engine temperature. • Icing of the air filter and carburettor. Below you will find some general maintenance instructions. Daily maintenance • 3 2 1 Special measures are therefore often required: Partly mask the air inlet on the starter to increase the working temperature of the engine.
MAINTENANCE Weekly maintenance 1 5 2 4 3 6 7 0,5 mm 8 1 Check that the vibration damping elements are not damaged. 2 Lubricate the clutch drum bearing. 3 File off any burrs from the edges of the bar. 4 Clean the spark plug. Check that the electrode gap is 0.5 mm (0,020 inch). 5 Clean the fins on the flywheel. Check the starter and the recoil spring. 6 Clean the cooling fins on the cylinder. 7 Clean or replace the spark arrestor mesh in the muffler.
TECHNICAL DATA Technical data CS 2141 CS 2145 CS 2150 2,49/40,8 2,75/45,0 3,15/51,7 Engine Cylinder volume, cu.
TECHNICAL DATA Recommended original and replacement bar and chain combinations Following is a list of recommended cutting equipment for the Jonsered chain saw models 2141, 2145 and 2150. The combinations of power head, bar and chain have been investigated in accordance with the kickback and vibration requirements of ANSI B 175.1– 2000. The guide bar nose radius is determined by either the maximum number of teeth in the nose sprocket or the corresponding maximum nose radius of a solid bar.
FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS rights and responsibilities, you should contact your nearest authorized servicing dealer or call Jonsered, at Sweden +4636-146500. The EPA (The US Environmental Protection Agency), Environment Canada and Jonsered are pleased to explain the emissions control system warranty on your 2001 and later small nonroad engine. In U.S.
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