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MAINTENANCE

English

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 35

Adjustment of the oil pump

The oil pump is adjustable. Adjustments are made by 
turning the screw using a screwdriver or combination 
spanner. The machine is supplied from the factory with 
the screw set to position 2. Turning the screw clockwise 
will reduce the oil flow and turning the screw anti-
clockwise will increase the oil flow.

Recommended settings:

Bar 13"-15": Position 1

Bar 15"-18": Position 2

Bar 18"-20": Position 3

Cooling system

To keep the working temperature as low as possible the 
machine is equipped with a cooling system.

The cooling system consists of:

1

Air intake on the starter.

2

Air guide plate.

3

Fins on the flywheel.

4

Cooling fins on the cylinder.

5

Cylinder cover (directs cold air over the cylinder).

Clean the cooling system with a brush once a week, more 
often in demanding conditions. A dirty or blocked cooling 
system results in the machine overheating which causes 
damage to the piston and cylinder.

Note! The cooling system on a chain saw with catalytic 
converter must be cleaned daily. This is particularly 
important on chain saws with catalytic converters, 
because the higher exhaust temperature requires 
efficient cooling of the engine and the catalytic converter 
unit.

”Air Injection” centrifugal 
cleaning

Centrifugal cleaning means the following: All air to the 
carburettor passes through the starter. Dirt and dust is 
centrifuged out by the cooling fan.

IMPORTANT! In order to maintain operation of the 
centrifugal cleaning system it must be regularly 
maintained. Clean the air intake to the starter, the fins on 
the flywheel, the space around the flywheel, inlet pipe and 
carburettor compartment.

!

WARNING! The engine must not be 
running when making adjustments.

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Summary of Contents for CS 2156

Page 1: ... CS 2156 CS 2156C CS 2156CWH CS 2159 CS 2159W CS 2159WH CS 2159C CS 2159CWH Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...uce the pressure in the cylinder and make starting easier You should always use the decompression valve when starting the machine Ignition choke Set the choke control in the choke position This should automatically set the stop switch to the start position Adjustment of the oil pump Other symbols decals on the machine refer to special certification requirements for certain markets Symbols in the o...

Page 3: ...l safety 18 STARTING AND STOPPING Starting and stopping 19 WORKING TECHNIQUES Before use 21 General working instructions 21 How to avoid kickback 28 MAINTENANCE General 29 Carburettor adjustment 29 Checking maintaining and servicing chain saw safety equipment 30 Muffler 32 Starter 33 Air filter 34 Spark plug 34 Lubricating the bar tip sprocket 34 Needle bearing lubrication 34 Adjustment of the oil...

Page 4: ...lers ask for the address of your nearest service workshop It is our wish that you will be satisfied with your product and that it will be your companion for a long time Think of this operator s manual as a valuable document By following its content using service maintenance etc the life span and the second hand value of the machine can be extended If you will sell this machine make sure that the b...

Page 5: ...procket 14 Chain 15 Bar 16 Spike bumper 17 Chain catcher Catches chain if it jumps or breaks 18 Clutch cover 19 Rear handle with right hand guard 20 Throttle control 21 Throttle lockout Prevents accidental operation of throttle control 22 Decompression valve CS 2159 Automatic decompression valve CS 2156 23 Combination spanner 24 Chain tensioning screw 25 Operator s manual 26 Transport guard 27 Oil...

Page 6: ...muffler WARNING Long term inhalation of the engine s exhaust fumes chain oil mist and dust from sawdust can represent a health risk WARNING This machine produces an electromagnetic field during operation This field may under some circumstances interfere with active or passive medical implants To reduce the risk of serious or fatal injury we recommend persons with medical implants to consult their ...

Page 7: ...if service and or repairs are not carried out professionally If you need further information please contact your nearest service workshop Chain brake and front hand guard Your chain saw is equipped with a chain brake that is designed to stop the chain 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 ki...

Page 8: ...ards the front handle Kickback can be very sudden and violent Most kickbacks are minor and do not always activate the chain brake If this happens you should hold the chain saw firmly and not let go The way the chain brake is activated either manually or automatically by the inertia release mechanism depends on the force of the kickback and the position of the chain saw in relation to the object th...

Page 9: ...njury in the event of a kickback No First the chain brake must be in working order to provide the intended protection Second it must be activated during the kickback as described above to stop the saw chain Third the chain brake may be activated but if the bar is too close to you the brake might not have enough time to slow down and stop the chain before the chain saw hits you Only you and proper ...

Page 10: ...th properly sharpened Follow our instructions and use the recommended file gauge A damaged or badly sharpened chain increases the risk of accidents Maintain the correct depth gauge setting Follow our instructions and use the recommended depth gauge clearance Too large a clearance increases the risk of kickback WARNING Overexposure to vibration can lead to circulatory damage or nerve damage in peop...

Page 11: ...h a bar and chain combinations recommended by Jonsered See instructions under the heading Technical Data for a list of replacement bar and chain combinations we recommend Bar Length inches cm Number of teeth on bar tip sprocket T Chain pitch inches The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket Number of drive links T...

Page 12: ... without the right equipment We recommend that you use our file gauge This will help you obtain the maximum kickback reduction and cutting performance from your chain See instructions under the heading Technical data for information about sharpening your chain Sharpening cutting teeth To sharpen cutting teeth you will need a round file and a file gauge See instructions under the heading Technical ...

Page 13: ...e setting is correct when you no longer feel resistance as you draw the file along the depth gauge tool Tensioning the chain The more you use a chain the longer it becomes It is therefore important to adjust the chain regularly to take up the slack Check the chain tension every time you refuel NOTE A new chain has a running in period during which you should check the tension more frequently Tensio...

Page 14: ...ng will use more chain oil Checking chain lubrication Check the chain lubrication each time you refuel See instructions under the heading Lubricating the bar tip sprocket Aim the tip of the bar at a light coloured surface about 20 cm 8 inches away After 1 minute running at 3 4 throttle you should see a distinct line of oil on the light surface If the chain lubrication is not working Check that the...

Page 15: ...h a file if necessary Whether the groove in the bar has become badly worn Replace the bar if necessary Whether the tip of the bar is uneven or badly worn If a hollow forms on the underside of the bar tip this is due to running with a slack chain To prolong the life of the bar you should turn it over daily WARNING Most chain saw accidents happen when the chain touches the operator Wear personal pro...

Page 16: ...correctly over the drive sprocket and that the chain is correctly located in the groove in the bar Tighten the bar nuts finger tight 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 The chain is correctly tensioned when it does not sag from the underside of the bar but c...

Page 17: ...or best results and performance use JONSERED two stroke engine oil which is specially formulated for our air cooled two stroke engines Never use two stroke oil intended for water cooled engines sometimes referred to as outboard oil rated TCW Never use oil intended for four stroke engines A poor oil quality and or too high oil fuel ratio may jeopardise function and decrease the life time of catalyt...

Page 18: ...at purpose For longer periods of storage or for transport of the chain saw the fuel and chain oil tanks should be emptied Ask where you can dispose of waste fuel and chain oil at your local petrol station The bar guard must always be fitted to the cutting attachment when the machine is being transported or in storage in order to prevent accident contact with the sharp chain Even a non moving chain...

Page 19: ...setting is obtained by moving the choke control to the choke position and then pushing it in again Starting Grip the front handle with your left hand Hold the chain saw on the ground by placing your right foot through the rear handle Pull the starter handle with your right hand and pull out the starter cord slowly until you feel a resistance as the starter pawls engage then pull firmly and rapidly...

Page 20: ...and chain attached to the chain saw the clutch can come loose and cause serious injury The chain brake should be activated when starting Se instructions under the heading Start and stop Do not drop start This method is very dangerous because you may lose control of the saw Never start the machine indoors Exhaust fumes can be dangerous if inhaled Observe your surroundings and make sure that there i...

Page 21: ...ranches can be grabbed by the chain and thrown back at you causing serious injury 4 Make sure you can move and stand safely Check the area around you for possible obstacles roots rocks branches ditches etc in case you have to move suddenly Take great care when working on sloping ground 5 Take great care when cutting a tree that is in tension A tree that is in tension may spring back to its normal ...

Page 22: ...ght make you trip or lose your balance Lack of concentration can lead to kickback if the kickback zone of the bar accidentally touches a branch nearby tree or some other object Have control over the workpiece If the pieces you intend to cut are small and light they can jam in the saw chain and be thrown towards you Even if this does not need to be a danger you may be surprised and lose control of ...

Page 23: ...ns under the heading How to avoid kickback Terms Cutting General term for cutting through wood Limbing Cutting branches off a felled tree Splitting When the object you are cutting breaks off before the cut is complete There are five important factors you should consider before making a cut 1 Make sure the cutting equipment will not jam in the cut 2 Make sure the object you are cutting will not spl...

Page 24: ...rn the log stop cutting about 2 3 of the way through the log Turn the log and finish the cut from the opposite side The log is supported at one end There is a high risk that it will split Start by cutting from below about 1 3 of the way through Finish by cutting from above so that the two cuts meet The log is supported at both ends There is a high risk that the chain will jam Start by cutting from...

Page 25: ...sk See instructions under the heading Freeing a tree that has fallen badly Clearing the trunk and preparing your retreat Delimb the stem up to shoulder height It is safer to work from the top down and to have the tree between you and the saw Remove any undergrowth from the base of the tree and check the area for obstacles stones branches holes etc so that you have a clear path of retreat when the ...

Page 26: ...e or breaking bar into the cut as soon as it is deep enough Finish the felling cut parallel with the directional cut line so that the distance between them is at least 1 10 of the trunk diameter The uncut section of the trunk is called the felling hinge The felling hinge controls the direction that the tree falls in All control over the felling direction is lost if the felling hinge is too narrow ...

Page 27: ...se the tension and whether you are able to do it safely In complicated situations the only safe method is to put aside your chain saw and use a winch General advice Position yourself so that you will be clear of the tree or branch when the tension is released Make one or more cuts at or near the point of maximum tension Make as many cuts of sufficient depth as necessary to reduce the tension and m...

Page 28: ...lose as possible to the chain saw for maximum control If possible let the weight of the chain saw rest on the trunk 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 WARNING Kickback can happen very suddenly and violently kicking the chain saw bar and chain back at the user If this happens...

Page 29: ...ttor settings are adjusted during testing at the factory Avoid running at a too high speed during the first 10 hours CAUTION If the chain rotates while idling theT screw must be turned anti clockwise until the chain stops Rec idle speed 2700 rpm Fine adjustment When the machine has been run in the carburettor should be finely adjusted The fine adjustment should be carried out by a qualified person...

Page 30: ...ate at idle If the L jet is set too lean it may cause starting difficulties and poor acceleration If the H jet is set too lean the machine will have less power poor acceleration and could suffer damage to the engine Checking maintaining and servicing chain saw safety equipment Chain brake and front hand guard Checking brake band wear Brush off any wood dust resin and dirt from the chain brake and ...

Page 31: ...bs around the handles 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 Throttle lockout Make sure the throttle control is locked at the idle setting when the throttle lockout is released Press the throttle lockout and make sure it returns to its original position when yo...

Page 32: ...ove the stop switch to the stop setting Muffler Never use a machine that has a faulty muffler Regularly check that the muffler is securely attached to the machine Some mufflers are equipped with a special spark arrestor mesh If your machine has this type of muffler you should clean the mesh at least once a week This is best done with a wire brush A blocked mesh will cause the engine to overheat an...

Page 33: ...prox 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 Fit the screw in the centre of the pulley Insert the starter cord through the hole in the starter housing and the starter handle Make a secure knot in the end of the starter cord Tensioning the recoil spring Hook the starter cord in the notch in the pulley an...

Page 34: ...ding to working conditions weather season etc Contact your dealer for advice Spark plug The spark plug condition is influenced by Incorrect carburettor adjustment An incorrect fuel mixture too much or incorrect type of oil A dirty air filter These factors cause deposits on the spark plug electrodes which may result in operating problems and starting difficulties If the machine is low on power diff...

Page 35: ...system with a brush once a week more often in demanding conditions A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder Note The cooling system on a chain saw with catalytic converter must be cleaned daily This is particularly important on chain saws with catalytic converters because the higher exhaust temperature requires efficient co...

Page 36: ...e the flow of cooling air and prevent large amounts of snow from being sucked into the carburettor space CAUTION When the winter plug is fitted the winter flap must be open Heated handles CS 2156W CS 2159W On models with the model code W both the front handle bar and the rear handle are equipped with electrical heating coils These are supplied with electricity from a generator built into the chain...

Page 37: ... Check the lubrication hole in the bar to be sure it is not clogged Clean the bar groove If the bar has a sprocket tip this should be lubricated Lubricate the clutch drum bearing Clean the outside of the carburettor Check that the bar and chain are getting sufficient oil File off any burrs from the edges of the bar Check the fuel filter and the fuel hose Replace if necessary Check the saw chain wi...

Page 38: ... 5 Fuel and lubrication system Fuel tank capacity litre 0 68 0 68 Oil pump capacity at 9 000 rpm ml min 6 17 6 17 Oil tank capacity litre 0 38 0 38 Type of oil pump Automatic Automatic Weight Chain saw without bar or chain empty tanks kg 5 6 CS 2156 CS 2156 C 5 7 CS 2156 CWH 5 6 CS 2159 CS 2159 C 5 7 CS 2159 W CS 2159 WH CS 2159 CWH Noise emissions see note 1 Sound power level measured dB A 114 CS...

Page 39: ...CWH CS 2159 CS 2159W CS 2159WH CS 2159C and CS 2159CWH Saw chain filing and file gauges Bar Chain Length inch Pitch inch Gauge mm Max nose radius Type Length drive links no 13 0 325 1 5 10T Jonsered H25 56 15 0 325 1 5 10T 64 16 0 325 1 5 10T 66 18 0 325 1 5 10T 72 15 3 8 1 5 11T Jonsered H42 56 16 3 8 1 5 11T 60 18 3 8 1 5 11T 68 20 3 8 1 5 11T 72 ...

Page 40: ...SO 11681 1 2004 Notified body 0404 SMP Svensk Maskinprovning AB Fyrisborgsgatan 3 SE 754 50 Uppsala Sweden has carried out EC type examination in accordance with the machinery directive s 2006 42 EC article 12 point 3b The certificates for EC type examination in accordance with annex IX have the numbers 0404 09 2074 CS 2156 CS 2156W CS 2156WH CS 2156C CS 2156CWH 0404 09 2075 CS 2159 CS 2159W CS 21...

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Page 44: ...1153185 26 z U2T 6X z U2T 6X 2010 03 22 Original instructions ...

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