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CS 2156, CS 2156C  
CS 2156CWH  
CS 2159, CS 2159W  
CS 2159WH  
CS 2159C  
CS 2159CWH Operator′s manual English
Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.                                                                                                                                                                                                                                                                         
                    
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                                     KEY TO SYMBOLS Symbols on the machine: Symbols in the operator’s  WARNING! Chain saws can be manual: dangerous! Careless or incorrect use can  Switch off the engine by moving the  result in serious or fatal injury to the  stop switch to the STOP position before  operator or others. carrying out any checks or  Please read the operator’s manual  maintenance. carefully and make sure you understand  the instructions before using the  Always wear approved protective  machine. gloves. Alw
                    
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                                                                          CONTENTS Contents KEY TO SYMBOLS Symbols on the machine: ..................................... 2 Symbols in the operator’s manual: ....................... 2 CONTENTS Contents ............................................................... 3 INTRODUCTION Dear Customer, .................................................... 4 WHAT IS WHAT? What is what on the chain saw? ........................... 5 GENERAL SAFETY PRECAUTIONS Before using a new chain
                    
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                                         INTRODUCTION Dear Customer, Congratulations on your choice to buy a Jonsered product! We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very  long time to come. The purchase of one of our products gives you access to professional help with repairs and service  whenever this may be necessary. If the retailer who sells your machine is not one of our authorised dealers, ask for the  address of your nearest service wor
                    
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                                      WHAT IS WHAT? What is what on the chain saw? 1 Cylinder cover 17 Chain catcher (Catches chain if it jumps or breaks.) 2 Front handle 18 Clutch cover 3 Chain brake and front hand guard 19 Rear handle with right hand guard 4 Starter 20 Throttle control 5 Chain oil tank 21 Throttle lockout (Prevents accidental operation of  throttle control.) 6 Starter handle 22 Decompression valve (CS 2159)   7 Adjuster screws carburettor Automatic decompression valve (CS 2156) 8 Choke control/Start 
                    
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                                                      GENERAL SAFETY PRECAUTIONS Before using a new chain saw Important • Please read this manual carefully. IMPORTANT! • Check that the cutting equipment is correctly fitted  This chain saw for forest service is designed for forest  and adjusted. See instructions under the heading  work such as felling, delimbing and cutting. Assembly. You should only use the saw with the bar and chain  • Refuel and start the chain saw. See the instructions  combinations we recommend in t
                    
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                                                     GENERAL SAFETY PRECAUTIONS provide information about which training materials and Generally clothes should be close-fitting without  courses are available. restricting your freedom of movement. IMPORTANT! Sparks can come from the muffler, the bar  and chain or other sources. Always have fire  extinguishing tools available if you should need them.  Help prevent forest fires. Machine′s safety equipment In this section the machine’s safety features and their  function are e
                    
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                          GENERAL SAFETY PRECAUTIONS • The brake is applied when the front hand guard (B) is • To release the chain brake pull the front hand guard  pushed forwards. backwards, towards the front handle. • This movement activates a spring-loaded mechanism  that tightens the brake band (C) around the engine  • Kickback can be very sudden and violent. Most  drive system (D) (clutch drum). kickbacks are minor and do not always activate the  chain brake. If this happens you should hold the chain  saw firmly a
                    
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                        GENERAL SAFETY PRECAUTIONS of the front hand guard, the chain brake can only be control (B). When you release the handle the throttle  activated by the inertia action.  control and the throttle lockout both move back to their  original positions. This arrangement means that the  throttle control is automatically locked at the idle setting. Will my hand always activate the chain  brake during a kickback? Chain catcher No. It takes a certain force to move the hand guard  forward. If your hand only
                    
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                        GENERAL SAFETY PRECAUTIONS chain saw, including the cutting equipment, is insulated requiring among other things the muffler must be  from the handles by vibration damping units. equipped with an approved type of spark arrestor mesh. Cutting hardwoods (most broadleaf trees) creates more  CAUTION! The muffler gets very hot during and after  vibration than cutting softwoods (most conifers). Cutting  use. This also applies during idling. Be aware of the fire  with cutting equipment that is blunt or fa
                    
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                        GENERAL SAFETY PRECAUTIONS • Keep the chain properly tensioned!  If the chain is Bar slack it is more likely to jump off and lead to increased  • Length (inches/cm) wear on the bar, chain and drive sprocket. • Number of teeth on bar tip sprocket (T). • Keep cutting equipment well lubricated and  properly maintained!  A poorly lubricated chain is  more likely to break and lead to increased wear on the  bar, chain and drive sprocket. • Chain pitch (inches). The spacing between the drive  links of 
                    
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                        GENERAL SAFETY PRECAUTIONS It is very difficult to sharpen a chain correctly without the  Sharpening your chain and adjusting  right equipment. We recommend that you use our file  depth gauge setting gauge. This will help you obtain the maximum kickback  reduction and cutting performance from your chain. General information on sharpening cutting teeth • Never use a blunt chain. When the chain is blunt you  have to exert more pressure to force the bar through  the wood and the chips will be very sm
                    
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                        GENERAL SAFETY PRECAUTIONS General advice on adjusting depth gauge setting Tensioning the chain • When you sharpen the cutting tooth (A) the depth  gauge setting (C) will decrease. To maintain optimal  cutting performance the depth gauge (B) has to be  filed down to achieve the recommended depth gauge  setting. See instructions under the heading Technical  WARNING! A slack chain may jump off  data to find the correct depth gauge setting for your  and cause serious or even fatal injury. ! particula
                    
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                        GENERAL SAFETY PRECAUTIONS throttle you should see a distinct line of oil on the light  Lubricating cutting equipment surface. WARNING! Poor lubrication of cutting  equipment may cause the chain to snap,  ! which could lead to serious, even fatal  injuries. Chain oil Chain oil must demonstrate good adhesion to the chain  and also maintain its flow characteristics regardless of  whether it is warm summer or cold winter weather. If the chain lubrication is not working: As a chain saw manufacturer w
                    
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                        GENERAL SAFETY PRECAUTIONS Regularly check the degree of wear on the drive sprocket. • Whether the tip of the bar is uneven or badly worn. If  Replace if wear is excessive. Replace the drive sprocket a hollow forms on the underside of the bar tip this is  whenever you replace the chain. due to running with a slack chain. Needle bearing lubrication Both versions of sprockets have a needle bearing on the  drive shaft, which has to be greased regularly (once a  week). CAUTION! Use a high-quality be
                    
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                        ASSEMBLY should be tensioned until it does not sag from the  Fitting the bar and chain underside of the bar. WARNING! Always wear gloves, when  working with the chain. ! Check that the chain brake is in disengaged position by  moving the front hand guard towards the front handle. The chain is correctly tensioned when it does not sag from  the underside of the bar, but can still be turned easily by  hand. Hold up the bar tip and tighten the bar nuts with the  combination spanner. Remove the bar n
                    
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                        FUEL HANDLING Mixing ratio Fuel 1:50 (2%) with JONSERED two-stroke oil. Note! The machine is equipped with a two-stroke engine  1:33 (3%) with oils class JASO FB or ISO EGB formulated  and must always be run using a mixture of petrol and two- for air-cooled, two-stroke engines. stroke oil. It is important to accurately measure the  amount of oil to be mixed to ensure that the correct  Petrol, litre Two-stroke oil, litre mixture is obtained. When mixing small amounts of fuel,  even small inaccura
                    
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                        FUEL HANDLING • Move the machine at least 3 m from the refuelling  Fuelling point before starting it. WARNING! Taking the following  precautions, will lessen the risk of fire: ! Do not smoke and do not place any hot  objects in the vicinity of fuel. Always stop the engine and let it cool for  a few minutes before refuelling. • Never start the machine: When refuelling, open the fuel cap slowly  1 If you have spilt fuel or chain oil on the machine. Wipe  so that any excess pressure is released  off
                    
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                        H H STARTING AND STOPPING If the machine is fitted with a decompression valve (A):  Starting and stopping Press the valve to reduce the pressure in the cylinder and  make starting easier. You should always use the  WARNING! Note the following before  decompression valve when starting the machine. Once  starting: ! the machine has started the valve will automatically return  to its original setting. The chain brake must be engaged when  the chain saw is started to reduce the  chance of contact wit
                    
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                        H STARTING AND STOPPING Push in the choke control as soon as the engine fires and • Observe your surroundings and make sure that there  keep pulling until the engine starts. When the engine is no risk of people or animals coming into contact  starts, quickly apply full throttle; the throttle start lock will with the cutting equipment. automatically disengage. As the chain brake is still engaged the speed of the  engine must be set to idling as soon as possible, this is  achieved by quickly diseng