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Manual Husqvarna 336

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  • Husqvarna 336 - page 1

    334T 338XPT 336 339XP English ...

  • Husqvarna 336 - page 2

    2 – English CONTENTS Introduction .................................................... 3 Safety instructions ......................................... 4 Symbol explanation ....................................... 5 T echnical Data ................................................ 6 T ools ............................................................ ...

  • Husqvarna 336 - page 3

    English – 3 INTRODUCTION Layout This Workshop Manual can be used in two different ways: • For the repair of a particular system on the chain saw. • For dismantling and assembly of the entire chain saw. General This Workshop Manual provides a comprehensive description of how to trouble shoot, repair and test the chain saw. A description of dif ...

  • Husqvarna 336 - page 4

    4 – English SAFETY REGULA TIONS Special instructions The fuel used in the chain saw has the following hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. The bar, chain and clutch cover (chain brake) must be fitted before the saw is started otherwise the clutch can work loose ...

  • Husqvarna 336 - page 5

    English – 5 SYMBOL EXPLANA TION Symbols Contact with the tip of the bar can result in the bar being suddenly thrown upwards and backwards, which can result in serious injury. This saw is only intended for persons especially trained in tree conservation. See the Operator Guide! Oil refilling and adjustment of the oil flow. WARNING! Chain saws can ...

  • Husqvarna 336 - page 6

    6 – English TECHNICAL DA T A Electrode gap Ignition system Air gap Carburettor type mm/inch mm/inch 336: 0,7/0,028 SEM/CD 0,3/0,01 ZAMA C1Q 334T: 0,7/0,028 SEM/CD 0,3/0,01 ZAMA C1Q 338XPT: 0,7/0,028 SEM/CD 0,3/0,01 ZAMA C1Q 339XP: 0,7/0,028 SEM/CD 0,3/0,01 ZAMA C1Q Bar length Chain speed at Chain pitch Drive link max output cm/inch m/s inch mm/in ...

  • Husqvarna 336 - page 7

    English – 7 TECHNICAL DA T A Volume fuel tank Capacity oil pump Volume oil tank Automatic oil pump Litre/US pint cm 3 /min Litre/US pint 336: 0,36/0,76 3-7 0,20/0,42 Yes 334T: 0,3/0,63 3-7 0,16/0,34 Yes 338XPT: 0,3/0,63 3-7 0,16/0,34 Yes 339XP: 0,36/0,76 3-7 0,20/0,42 Yes Weight without chain and bar Weight with chain and bar Handle heater kg/lbs ...

  • Husqvarna 336 - page 8

    8 – English T OOLS 12 3 4 56 7 8 9 10 11 12 13 14 15 ...

  • Husqvarna 336 - page 9

    English – 9 TOOLS Pos Description Used for Order No. 1 Piston assembly set Assembling the piston 502 50 70-01 2 Cover plate, inlet Sealing the inlet manifold 502 52 01-01 3 Cover plate exhaust Sealing the exhaust port 502 52 31-01 4 Pressure tester Produce pressure when leakage testing 502 50 38-01 5 Puller Removing bearings from the crankshaft 5 ...

  • Husqvarna 336 - page 10

    10 – English TROUBLE SHOOTING Starting Idling (low speed) Adjust the L-screw Leaking inlet manifold (rubber) Loose carburettor mounting Loose or faulty fuel pipe Blocked fuel filter Blocked fuel line T ank ventilator blocked Throttle valve axle stiff Throttle sticks Defective throttle return spring Bent valve axle stop Faulty diffuser jet Adjust ...

  • Husqvarna 336 - page 11

    English – 11 T rouble shooting methods In addition to faults given in the above schematic, trouble shooting can be carried out on a specific component or specific chain saw system. The different procedures are described in respective sections and are as follows: 1. Pressure testing the carburettor. See the chapter "Carburettor". 2. Pres ...

  • Husqvarna 336 - page 12

    12 – English SER VICE DA T A 334T/338XPT Character key The numbers by bolted components represent the tightening torque in Nm. ▲ = Lubricate using two-stroke oil. ■ = Lubricate using engine oil. ● = Lubricate using grease. ❑ = Glued using 2 component adhesive. ❍ = Sealed using silicone. 2-3 15 8-10 8-10 20-26 ...

  • Husqvarna 336 - page 13

    English – 13 SER VICE DA T A 334T/338XPT 2,5-4 1-2 2,5-4 2-3 8-10 10-15 2-3 2,5-4 20-26 2-3 6-7 * ...

  • Husqvarna 336 - page 14

    14 – English SER VICE DA T A 336/339XP Character key The numbers by bolted components represent the tightening torque in Nm. ▲ = Lubricate using two-stroke oil. ■ = Lubricate using engine oil. ● = Lubricate using grease. ❑ = Glued using 2 component adhesive. ❍ = Sealed using silicone. 2-3 15 8-10 8-10 20-26 8-10 10-15 * ...

  • Husqvarna 336 - page 15

    English – 15 SER VICE DA T A 336/339XP S T O P 2,5-4 2,5-4 2-3 2,5-4 20-26 2-3 6-7 ...

  • Husqvarna 336 - page 16

    16 – English SAFETY EQUIPMENT Cleaning and inspection Clean and inspect all parts. The thickness of the brake band must not be under 0.8 mm at any point. 2. Remove the circlips (B) and (C) then push/knock out the pins. 3. Remove the handle. 4. Undo the four bolts (D) and remove the cover. Chain brake Dismantling 1. Check that the chain brake is o ...

  • Husqvarna 336 - page 17

    English – 17 SAFETY EQUIPMENT Assembly Assemble the chain brake as follows: 1. Bolt together the knee joint and brake band. 2. Grease the knee joint ’ s moving parts and assemble the unit in the cover and knock in the pin (E). B C E D D D D 5. Fit the cover and tighten the four bolts (D). 6. Release the brake and fit the clutch cover on the cha ...

  • Husqvarna 336 - page 18

    18 – English SAFETY EQUIPMENT Chain catcher Dismantle the chain and bar. See the Operator Guide. Check the spike (J), does not apply to 333, and the chain catcher (K). Replace any components if damaged. The bolts should be tightened to 4 Nm. Assemble the chain and bar. See the Operator Guide. Cleaning and inspection Clean all components and check ...

  • Husqvarna 336 - page 19

    English – 19 SAFETY EQUIPMENT Throttle lock and stop function Dismantling, 334T, 338XPT Dismantle the throttle lock as follows: 1. Dismantle the clutch cover and carburettor cover. 2. Knock out the pins (B) and (C) from the left and undo the bolt (D), now pull up the throttle lock (A). Cleaning and inspection Clean all components and check the fo ...

  • Husqvarna 336 - page 20

    20 – English SAFETY EQUIPMENT Assembly 334T, 338XPT Assemble the components as follows: 1. Assemble the electrical leads to the lock plate (E) and choke lever/start control (J). I H J E F G D E F B C D A 6. Hook on the throttle ’ s bearing (F). Use a screwdriver to fit the choke rod (G) on the carburettor. 7. Fit the clutch cover and carburetto ...

  • Husqvarna 336 - page 21

    English – 21 SAFETY EQUIPMENT Dismantling 336, 339XP 1. Remove the stop button (A) and both side covers (B) using a small screwdriver. 2. Tap out the pins (C) and (D) using a drift. Cleaning and inspection Clean the parts and check the following: 1. That the throttle lock engagement mechanism (K) is not worn. 2. That the spring (F) is undamaged. ...

  • Husqvarna 336 - page 22

    22 – English SAFETY EQUIPMENT Assembly 336, 339XP Assemble the parts as follows: 1. Attach the throttle wire (H) to the steel wire and pull back the steel wire and throttle wire through the tank unit. 2. Connect the throttle wire (H) to the throttle valve (I) and then fit the carburettor cover. 6. Fit the two pins (C and D). 7. Press both side co ...

  • Husqvarna 336 - page 23

    English – 23 ST ARTER WARNING! • The return spring is under tension when in its cassette in the starter and can, with careless handing, fly out and cause personal injury. • Care must be exercised when replacing the recoil spring or the starter cord. Wear protective glasses. Dismantling 1. Undo the four bolts holding the starter (A) and air co ...

  • Husqvarna 336 - page 24

    24 – English ST ARTER Cleaning and inspection Clean all components and check the following: 1. Starter cord. 2. The dogs on the starter pulley. 3. That the starter dogs on the flywheel are intact, spring back towards the centre and run easily. Assembly 1. Lubricate the new return spring using thin oil without removing it from the cassette. 2. Car ...

  • Husqvarna 336 - page 25

    English – 25 IGNITION SYSTEM Dismantling 1. Dismantle the starter (A) and air conductor (B). 2. Remove the spark plug and insert the piston stop (C) in the spark plug hole. See service tools. D E E F H I 8. Dismantle the starter dogs by pressing out the dogs ’ bearing pins using a suitable punch ( ø 3 mm). 6. Fit the mandrel 502 51 94-01 on th ...

  • Husqvarna 336 - page 26

    26 – English Cleaning and inspection Clean all parts, especially the tapers on the flywheel and shafts. Check the flywheel for cracks or any other signs of damage. Assembly of the spark plug guard 1. Insert the ignition lead through the spark plug guard. 2. Make a hole in the ignition lead for the contact coil by using the pliers 502 50 06-01. 3. ...

  • Husqvarna 336 - page 27

    English – 27 CENTRIFUGAL CLUTCH Dismantling 1. Dismantle the clutch cover. 2. Remove the spark plug and insert the piston stop (A) in the spark plug hole. See service tools. 3. Use a 19 mm spanner and dismantle the clutch hub. NOTE! Left-hand thread. Cleaning and inspection Clean all components and check the following: 1. That the outer measureme ...

  • Husqvarna 336 - page 28

    28 – English CENTRIFUGAL CLUTCH Assembly 1. When changing the springs assemble as follows: A. Fit the two clutch shoes and the two springs and set up the unit in a vice. B. Tighten the vice so that the shoe holder can be pressed down between the clutch shoes. 3. Use a 19 mm spanner and fit the clutch hub. NOTE! Left-hand thread. 4. Remove the pis ...

  • Husqvarna 336 - page 29

    English – 29 CARBURETT OR Description WARNING! The fuel used in the chain saw has the follow- ing hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. The drawings accompanying this description do not correspond with the carburettor on the chain saw. They show purely the princ ...

  • Husqvarna 336 - page 30

    30 – English Operation The carburettor operates differently in the following modes: Cold start mode In the cold start mode the choke valve (D) is fully closed. This increases the vacuum in the carburettor and fuel is easier to suck from all the diffuser jets (E, F and G). The throttle valve (H) is partly open. Full throttle mode In the full throt ...

  • Husqvarna 336 - page 31

    English – 31 CARBURETTOR 1. 2. 4. 3. Primer pump The primer pump is designed to make it easier to start the engine when cold. The pump fills the carburettor with fuel before an attempt is made to start. This also prevents bubbles of vapour from blocking the narrow fuel channels. If the pump does not work it must be replaced. Note the way the fuel ...

  • Husqvarna 336 - page 32

    32 – English 4. Slide out the choke lever (Y) using a screwdriver. 5. Pull off the fuel hose (V) using long nosed pliers. 6. Pull out the carburettor a little and unhook the throttle (X). Now pull out the carburettor completely. Continue dismantling from point 7 on the next page. 3. Dismantle the air filter (S), the two bolts and the air filter h ...

  • Husqvarna 336 - page 33

    English – 33 CARBURETT OR 7. Dismantle the cover (A) on the metering unit and carefully remove the control diaphragm (B) with gasket (C). 8. Dismantle the bolt (D) and lift out the needle valve (P) with lever (E), shaft and spring (F). 9. Dismantle the cover (J) on the pump unit and carefully remove the gasket (K) and pump diaphragm (M). 10. Use ...

  • Husqvarna 336 - page 34

    34 – English 5. Free the choke control (X) from the tank unit and unhook it. 6. Pull out the carburettor a little and unhook the throttle wire (Y). Disconnect the fuel pipe (Z) from the carburettor using a pair of thin-nosed pliers. Now pull out the carburettor fully. Continue dismantling from point 7 on the next page. 3. Remove the air filter (S ...

  • Husqvarna 336 - page 35

    English – 35 CARBURETT OR 7. Dismantle the cover (A) on the metering unit and carefully remove the control diaphragm (B) with gasket (C). 8. Dismantle the bolt (D) and lift out the needle valve (P) with lever (E), shaft and spring (F). 9. Dismantle the cover (J) on the pump unit and carefully remove the gasket (K) and pump diaphragm (M). 10. Use ...

  • Husqvarna 336 - page 36

    36 – English Cleaning and inspection of the carburettor WARNING! Fuel has the following hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. Clean all units in clean petrol. WARNING! Never direct the compressed air jet towards the body. Air can penetrate into the blood circula ...

  • Husqvarna 336 - page 37

    English – 37 CARBURETT OR 5. Fit the high speed needle (H) as follows: A. Screw in the new H-needle clockwise until it bottoms. Then anticlockwise 3 1/2 turns. B. Press a new locking cap onto the H-needle to the first stop, i.e. the locking cap should not be fixed. 6. Fit the low speed needle (L) as follows: A. Screw in the new L-needle clockwise ...

  • Husqvarna 336 - page 38

    38 – English Assembly 334T , 338XPT (continued) WARNING! The fuel used in the chain saw has the follow- ing hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. Once the carburettor has been pressure tested assembly continues as follows: 1. Insert the carburettor a little and ...

  • Husqvarna 336 - page 39

    English – 39 Assembly 336, 339XP (continued) WARNING! The fuel used in the chain saw has the follow- ing hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. Once the carburettor has been pressure tested assembly continues as follows: 1. Fit the fuel pipe (Z) using pliers with ...

  • Husqvarna 336 - page 40

    40 – English Carburettor Your Husqvarna product has been designed and manufactured according to specifications that reduce harmful gases. When you engine has consumed 8-10 tanks of fuel the engine has been "run-in". To ensure that it runs in the best possible way and emits as few harmful gases as possible after the running in period, le ...

  • Husqvarna 336 - page 41

    English – 41 T ANK UNIT WARNING! The fuel used in the chain saw has the follow- ing hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. Dismantling Dismantle the following parts: 1. Bar and chain. See the Operator Guide. 2. Centrifugal clutch. See the chapter "Centrifuga ...

  • Husqvarna 336 - page 42

    42 – English T ANK UNIT Changing the fuel hose and fuel filter 1. Take out the fuel filter with the attached hose with the help of a hook 502 50 83-01. 2. Pull the hose out through the rubber grommet. 3. Dismantle the rubber grommet. 4. Fit a new rubber grommet on a new hose so that the hose protrudes about 80 mm. 5. Insert the hose from the outs ...

  • Husqvarna 336 - page 43

    English – 43 T ANK UNIT Replacing the tank vent valve, oil tank 334T, 338XPT: 1. Pull out the valve ’ s rubber fastener using a pair of pliers. 2. Fit a new pin, vyon plug and valve in a new rubber fastener, place the unit in the hole in the tank from the outside. 3. Pull in the valve with fitted vyon plug and pin using a pair of long-nosed pli ...

  • Husqvarna 336 - page 44

    44 – English Replacing the impulse hose 1. Pull out the old impulse hose using pliers. 2. Insert the new impulse hose from the carburettor side and carefully pull it in from the engine side. T ANK UNIT ...

  • Husqvarna 336 - page 45

    English – 45 T ANK UNIT WARNING! The fuel used in the chain saw has the follow- ing hazardous properties: • The fluid and its vapour are poisonous. • Can cause skin irritation. • Is highly inflammable. Assembly Assemble the following parts: 1. Fit the engine unit from the clutch side and at the same time move the oil hose (E). 4. Fit the bo ...

  • Husqvarna 336 - page 46

    46 – English A V -SYSTEM Assembly 1. Fit the movement limiters on the two front damper elements. 2. Fit the damper element on the tank unit by using a 4 mm allen key. Assemble the following parts: 1. Tank unit. See the chapter "Tank unit". 2. Ignition system and the spark plug. See the chapter "Ignition system". 3. Starter. Se ...

  • Husqvarna 336 - page 47

    English – 47 CRANKSHAFT , PIST ON AND CYLINDER Dismantling Dismantle the following parts: 1. Bar and chain. See the Operator Guide. 2. Centrifugal clutch. See the chapter "Centrifugal clutch". 3. Muffler. See the chapter "Safety equipment". 4. Carburettor. See the chapter "Carburettor". 5. Starter. See the chapter &q ...

  • Husqvarna 336 - page 48

    48 – English Cleaning and inspection Clean all parts, scrape off any sealant from the crankcase and the cylinder’s contact surfaces. Remove carbon deposits from the following areas: 1. The piston crown. 2. Top of the cylinder bore (inside). 3. The cylinder exhaust port. Check the following: 1. That the cylinder’s surface coating is not worn. ...

  • Husqvarna 336 - page 49

    English – 49 CRANKSHAFT , PIST ON AND CYLINDER Assembly Assembly of the piston and cylinder is carried out as follows: 9. Insert the four bolts (A) and tighten crosswise. Finally tighten to 8-10 Nm. 10. Pressure test the crankcase in accordance with the instruc- tions on the next page. Assemble the following parts: 11. Tank unit. See the chapter ...

  • Husqvarna 336 - page 50

    50 – English CRANKSHAFT , PIST ON AND CYLINDER 3. Pull off the hose to the impulse channel and seal the nipple. 4. Pump up the pressure to 80 kPa (0.8 bar). 5. Wait 30 seconds. 6. The pressure must not fall below 60 kPa (0.6 bar). 7. Leakage can occur on the crankshaft ’ s sealing rings. 8. Dismantle the cover plates. Assemble the following par ...

  • Husqvarna 336 - page 51

    English – 51 BAR BOL T Dismantling Dismantle the following parts: 1. Bar and chain. See the Operator Guide. 2. Centrifugal clutch. See the chapter "Centrifugal clutch". 3. Muffler. See the chapter "Safety equipment". 4. Carburettor. See the chapter "Carburettor". 5. Starter. See the chapter "Starter". 6. Ig ...

  • Husqvarna 336 - page 52

    52 – English OIL PUMP Dismantling Dismantle the following parts: 1. Bar and chain. See the Operator Guide. 2. Centrifugal clutch. See the chapter "Centrifugal clutch". 3. Muffler. See the chapter "Safety equipment". 4. Carburettor. See the chapter "Carburettor". 5. Starter. See the chapter "Starter". 6. Ign ...

  • Husqvarna 336 - page 53

    English – 53 Assembly Assemble as follows: 1. Lubricate and fit the pump piston (B), spring and washer. Press in the unit and at the same time screw in the adjuster screw (A) with the spring and washer. OIL PUMP Now assemble the following parts: 3. Cylinder and crankshaft. See the chapter "Crankshaft, Piston and Cylinder". 4. Tank unit. ...

  • Husqvarna 336 - page 54

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  • Husqvarna 336 - page 55

    English – 55 ...

  • Husqvarna 336 - page 56

    ´®z+H.@¶6f¨ 2003W03 114 01 43-26 ...

  • Husqvarna 336 - page 57

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Manufacturer Husqvarna Category Chainsaw

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