Instruction/ maintenance manual of the product CS 2240 Jonsered
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W orkshop manual 510 16 77-26.
English – 3 W orkshop manual Jonsered CS 2240 and CS 2240S Contents Index ....................................................................... 4 Introduction and saf ety instructions ................... 6 T echnical data .........................
4 – English Index Inde x B Bar bolt 52 Replacing the bar bolt 52 C Carburettor 33 Assemble on the saw 40 Assembly 38 Carburettor adjustment 41 Cleaning and inspection 37 Design 33 Dismantling 35 Fun.
English – 5 Index T roub le shooting 54 T rouble-shooting methods 55 V Vibration damping system 43 Assembly 43 Cleaning and inspection 43 Dismantling 43.
6 – English Introduction and safety instructions 2 Intr oduction and saf ety instructions Contents 2.1 General ........................................................................................................................... 7 2.2 Safety .
English – 7 2 Intr oduction and saf ety instructions Introduction and safety instructions 2.1 General This Workshop Manual describes in detail how the chain saw is to be fault traced, repaired and tested. A description of different safety measures that should be taken during repair work is also given.
8 – English 2.8 General instructions The workshop where chain saw repairs are to be done must be equipped with safety equipment as set out in local provisions. No one may repair the chain saw unless they have read and understood the content of this Workshop Manual.
English – 9 Introduction and safety instructions 2.10 Symbols on the saw The symbols below are embedded on the chain saw . Choke Lever Refuelling Stop button Filling with chain oil Air purge Chain brake, activated (right) Chain brake, not activated (left) 2.
10 – English Displacement Cylinder bore Stroke Max power/speed cm 3 /cubic inches Ø mm/Ø inches mm/inches kW/hp/rpm CS 2240/S: 40,9 / 2,49 41 / 1,51 31 / 1,22 1,8 / 2,4 / 9 000 Spark plug gap Igni.
English – 1 1 Idling speed Engagement speed Spark plug rpm rpm CS 2240/S: 2 900 3 800 NGK BPMR 7A Champion RCJ 7Y Fuel tank capacity Oil pump capacity at Oil tank capacity Automatic oil pump Litres/.
12 – English 4 Special tools Special tools 11 4 6 9 1 2 3 7 8 10 M5 M6 5 M5.
English – 13 Special tools 12 13a 14 15 13b 16a 16c 16b 17 18 Item Description Used for Order no. 1 Clutch tool Centrifugal clutch 502 54 16-03 2 Piston stop Locking the crankshaft 504 91 06-05 3 Fu.
14 – English 5 Service data Service data.
English – 15 Service data.
16 – English 6 Safety equipment Safety equipment Contents 6.1 Dismantling the chain brake ........................................................................................... 17 6.2 Chain brake - reassembly ...................................
English – 17 3 Loosen the screws and carefully remove the cover over the brake spring. (see gure 3) W ARNING! Exer cise care to ensure the spring does not fly out and cause perso- nal injury . W ear pr otective glasses. 6.1 Dismantling the chain brake 2 Carefully tighten the clutch housing in a vice.
18 – English NO TE! After completing the repair the chain brake must be tested as described belo w . 6.2 Chain brake – reassembl y 1 Bolt the elbow joint to the brake band (see gure 5) and tighten to a torque of 1–1.5 Nm. Locate the elbow joint and connected brake band in their recesses in the clutch cover .
English – 19 Operating test: The engine must not be running during the test. Guide bar length Height 38cm/15" 50 cm/20" • Hold the chainsaw over a rm surface. The height of the guide bar above the surface is given in the table above. • Let go of the front handle and let the chainsaw fall towards the surface.
20 – English 6.5 Chain catcher – replacement If the chain catcher is worn it must be replaced with a new one. 1 Release the brake by pushing the kickback guard backwards. Undo the guide bar bolts and remove the clutch cover , chain and guide bar .
English – 21 Safety equipment 6.7 Stop switc h – resistance measurement Clean the mating surfaces and check the resis- tance as follows: Measure the resistance by connecting a multime- ter to the ignition coil. NOTE! The switch must be in the “on” (A) position to give the correct reading (see gure 14).
22 – English Safety equipment 3 Dismantle the handle insert (B) by loosening the screw C on the handle (see gure 18). 4 Press out the throttle control pin (D) with the help of a punch (see gure 19). 5 Loosen the throttle lock as illustrated with the help of a screwdriver or the like.
English – 23 6.10 Throttle loc k, throttle trigger and return spring – refitting 1 Lubricate all pins and mating surfaces with a light oil. 2 Fit the throttle control (B) and spring (C) (see gure 22). 3 Hold the spring and insert the throttle lock into the cut-out in the handle (see gure 23).
24 – English 7 Repair instructions Repair instructions Contents 7.1 Starter assembly - removal ............................................................................................. 25 7.2 Changing a broken or worn starter cord ..............
English – 25 Repair instructions W ARNING! If the recoil spring is still under tension when the pulley is re- moved it can fly out and cause injury . W ear ey e protection. 7.1 Starter assembly – remo val 1 Undo the four bolts that fasten the starter assembly to the crankcase and lift off the starter assembly .
26 – English Repair instructions 7.2 Changing a broken or w orn starter cord Whe n the s tar te r c or d i s wor n and m ust b e r ep lac ed , the t ens io n o n the r etu rn sp ri ng mu st be re le ase d. 1 Pull the cord out about 30 cm and lift it into the notch on the outside of the starter pulley .
English – 27 Repair instructions W ARNING! Make sure the recoil spring does not fly out and cause injury . W ear eye pr otection.. 7.4 Replacing a worn recoil spring 1 Remove the bolt from the centre of the pulley and lift off the pulley and spring cassette.
28 – English Repair instructions 7.7 Ignition module and flywheel – remov al 1 R e m o v e t h e c y l i n d e r c o v e r . D i s c o n n e c t t h e H T l e a d , r e m o v e t h e s p a r k p l u g a n d t p i s t o n s t o p 502 54 15- 01.
English – 29 Repair instructions 7.8 Ignition module and flywheel – refitting 1 Fit the ywheel on the crankshaft journal. T urn th e yw hee l s o t hat th e k ey lin es up wit h t he key way in the sh aft . Fit the nut on the shaft and tighten to a torque of 25-30 Nm (see gure 1 1).
30 – English Repair instructions 4 Sec ure th e c lut ch in a v ice as sh own in g ure . C are - ful ly rel eas e t he clu tch sp rin gs (C) (s ee gu re 16) . NO TE! Handle the clutc h springs carefully . If they are opened up too muc h they could dam- age the saw .
English – 31 7.10 Centrifugal clutc h – refitting 1 Insert the clutch springs in the shoes. 2 Screw the clutch (anti-clockwise) until it stops. Now tighten using tool 502 54 16-03 and a suitable socket wrench or combination spanner . T ightening torque min.
32 – English Repair instructions 7.12 A s s e m b l i n g th e o i l p u mp an d sc r ee n 1 Fit the chain guide plate with tightening torque 1–1.5 Nm. Fit the drive gear , needle bearing, clutch drum and the clutch (min. 20 Nm). Fit the chain, bar and clutch cover .
English – 33 Repair instructions W ARNING! T h e f u e l u s e d i n t h e c h a i n s a w h a s t h e f o l l o wi n g h a z a r do u s p r op e rt i e s : 1. The flui d a nd its fu mes ar e poi son ous . 2. Can cause skin irritation. 3. Is highly inflammab le.
34 – English Repair instructions Function The carburettor operates differently in the following modes: • Cold start mode • Idling mode • Part throttle mode • Full throttle mode In the cold start mode (see gure) the choke valve (H) is fully closed.
English – 35 Repair instructions Dismantling the carburettor 1. Dismantle the cylinder cover and the air lter . 2. Disassemble the handle holder (see gure 29). Fig 29 Fig 30 Fig 31 Fig 32 3. Push the throttle actuator rod out of the han- dle part.
36 – English Repair instructions 6. Disassemble the pump cover (G) over the measuring chamber cover (R) and carefully remove the control diaphragm (H) with gasket (J). 7. Unscrew the screw (K) and remove the needle valve (L) with lever (M), shaft (N) and spring (P).
English – 37 Repair instructions Cleaning and inspection Clean all units in clean petrol. Use compressed air to dry the petrol on the com- ponents. Direct the air through all channels in the carburettor housing and ensure that they are not blocked. Check the following: 1.
38 – English Repair instructions Assembl y Maintain a high level of cleanliness when assem- bling the carburettor . The slightest contamination can result in running problems. 1. If the throttle and choke valves, together with levers and springs were removed, they should be retted.
English – 39 Leakage at Fault with Dif fuser jets Needle valve Leakage in impulse tube Pump diaphragm V entilation hole on metering unit. Control diaphragm Pressure testing the carburettor Pressure testing should be carried out with the car- burettor fully assembled.
40 – English Assemble on the sa w 1. Press the carburettor down towards the parti- tion wall. Make sure that it gets into the correct position. 2. Fit the lter holder by hooking the choke con- trol into the choke lever (A). 3. Hook on the rubber mountings.
English – 41 Repair instructions Carburettor adjustment Conditions during adjustment • The air lter should be clean and the cylinder cover tted when adjustments are made. Ad- justing the carburettor with a dirty air lter will give a too lean fuel mixture the next time the air lter is cleaned.
42 – English 7.16 T ank unit Dismantling 1. Drain the fuel from the tank. 2. Dismantle the cylinder cover , bar and chain. See the Operator's Manual. 3. Unhook the throttle actuator rod (G) from the carburettor (see gure 45). 4. Dismantle the fuel hose (B) and the fuel pump return hose (D) (see gure 45).
English – 43 Assembl y 1. If the throttle lock has been removed, this must be assembled before the tank unit and engine unit are assembled. 2. Lift the engine unit above the tank unit and insert the fuel hose (in J), return hose (in H) in the bottom of the carburettor compartment (see gure 48).
44 – English 1 First remove the old fuel lter from the tank unit using special tool 502 50 83-01. 2 Pull the fuel hose (B) out of the tank unit and pull off the lter . 3 Fit the new fuel lter (A) and feed the fuel hose back into position. 7.
English – 45 Repair instructions 7.22 Piston and cylinder – remo v al 1 Remove: • cylinder cover • carburettor (see “Carburettor – removal”) • silencer • spark plug • fuel unit If replacing the cylinder: Remove the intake manifold, see “Air intake sys- tem – removal”.
46 – English Repair instructions Check the following: • The surface coating of the cylinder is not worn through, especially in the upper part of the cylinder . • The cylinder is free from score marks and areas of wear . • The piston is free from score marks.
English – 47 A B Faults and causes Score marks on the piston (A) 1. Incorrect carburettor setting. T oo high over- speed. 2. T oo low octane fuel. 3. T oo low or incorrect oil in the fuel. Carbon build-up (B) 1. Incorrect carburettor setting. T oo low over- speed.
48 – English Repair instructions Inlet manifold The intake system has two intakes. 1. The lower intake leads the fuel and air mixture from the carburettor to the cylinder .
English – 49 Repair instructions W ARNING! Af t er pr e ss u re te s ti n g t he c yl i nd e r , c he c k th a t t he in l et ma n if old is se a te d c o rr e ct l y , o th e rw i se th e s a w ma y b e d a ma g ed .
50 – English Repair instructions 7.25 Crankshaft complete - dismantling 1 Remove the following: • chain and bar • clutch cover • cylinder cover • starter assembly* • centrifugal clutch* • carburettor* • silencer* • handle system • hand guard • piston and cylinder* * See special instructions.
English – 51 Repair instructions 7.27 Crankshaft complete – reassembl y 1 Fit the crankshaft complete in the crankcase. Ret the following parts: • piston and cylinder* • handle system • h.
52 – English Repair instructions 7.29 Replacing the bar bolt Replacing the front bar guide. 1 Drain the oil tank. 2 Knock through the old guide bar bolt so that it falls into the oil tank.
English – 53 T roubleshooting 8 T r oubleshooting Contents 8.1 T roubleshooting .............................................................................................................. 54 8.2 T roubleshooting methods ..........................
54 – English T roubleshooting Starting Idling (low rpm) Idling (low rpm) (cont.) Adjust L screw Le a ki n g a ir in t ak e h o se (r u bb e r) Loose carburettor mounting bolts Loose or faulty fuel h.
English – 55 T roubleshooting Acceleration och retar dation Does not accelerate Engine stalls when throttle released Over rich acceleration Adjust L screw Adjust H screw Blocked air lter Blocked .
510 16 77-26 2009W39.
An important point after buying a device Jonsered CS 2240 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Jonsered CS 2240 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Jonsered CS 2240 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Jonsered CS 2240 you will learn all the available features of the product, as well as information on its operation. The information that you get Jonsered CS 2240 will certainly help you make a decision on the purchase.
If you already are a holder of Jonsered CS 2240, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Jonsered CS 2240.
However, one of the most important roles played by the user manual is to help in solving problems with Jonsered CS 2240. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Jonsered CS 2240 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
