Husqvarna 966451906 - Manual

English - 7 2 Introduction and safety instructions Introduction and safety instructions 2.1 General This Workshop Manual describes in detail how to be troubleshoot, repair and test the chain saw. A description of different safety steps that must be taken during repair work is also given. 2.2 Safety ...

10 - English Displacement Cylinder diameter Stroke length Max. output/speed cm3/cubic inch Ø mm/Ø inch mm/inch kW/hp/ rpm 555: 59,8 / 3.65 46 / 1.81 36 / 1.42 3.1 / 4.2 / 9600 560XP/XPG: 59,8 / 3.65 46 / 1.81 36 / 1.42 3.5 / 4.8 / 9600 562XP/XPG: 59,8 / 3.65 46 / 1.81 36 / 1.42 3.5 / 4.8 / 9600 Elec...

14 - English 5 Service data Service data 12-15 Nm 5mm 1,5-2Nm 4mm 5-6Nm 4mm Min. 25Nm 1-2Nm 8-10Nm 4mm 4-5Nm 4mm 18-20Nm 16mm 12-15 Nm 5mm Min. 15Nm 13mm 12-14Nm 13mm 1-2Nm 1-2Nm 1-2Nm s = Lubricate using two-stroke oil. n = Lubricate using chain oil. l = Lubricate using grease. The numbers by the c...

English - 17 3 Loosen the screws and insert a screwdriver to maintain pressure on the spring, and then carefully remove the cover over the brake spring, see fig. 3. WARNING!Exercise care to ensure the spring does not fly out and cause personal injury. Wear protective goggles. 6.1 Dismantling the cha...

18 - English 6.2 Assembling the chain brake 1 Screw the knee joint and the brake band together (see figure 5) using a tightening torque of 1-1.5 Nm. Place the knee joint with the fitted chain brake band in the opening in the clutch cover. The space for the spring in the cover must be lubricated with...

English - 19 NOTE! After repairing, the chain brake must be in-spected in line with the instruction below. Functional inspection: Do not turn on the motor when carrying out this inspection. Bar length Height 38 cm/15” 50 cm/20" • Hold the chain saw over a stable surface. The distance between the...

20 - English 6.5 Replacing the chain catcher A worn chain catcher must always be replaced with a new one. Always use original spare parts. 1 Release the brake by moving the front hand guard backward. Loosen the bar nuts and remove the clutch cover, chain and bar. 2 Remove the chain catcher and repla...

24 - English 7 Repair instructions Repair Instructions Contents 7.1 Dismantling the starter ....................................................................................................25 7.2 Replacing a broken or worn starter cord ................................................................

English - 25 Repair Instructions WARNING!If the spring tension is activated on the starter pulley, the spring can fly out and cause personal injury. Wear protective glasses. 7.1 Dismantling the starter 1 Loosen the four screws, which hold the starter against the crankcase and remove the starter. 3 L...

26 - English Repair instructions 7.2 Replacing a broken or worn starter cord When the starter cord is worn and must be replaced, the tension in the return spring must be released. 1 Pull the cord out about 30 cm and lift it into the notch on the outside of the starter pulley. Release the tension on ...

English - 27 Repair Instructions WARNING!Exercise care to ensure the spring does not fly out and cause person-al injury. Wear protective goggles. 7.4 Replacing a broken return spring 1 Loosen the screw at the centre of the starter pulley and loosen the screws on the cassette. Remove the starter pull...

30 - English Repair Instructions 4 Secure the clutch in a vice as shown in figure 16. Carefully remove the clutch springs. Remove the clutch shoe springs from the side that does not have text. NOTE! Be careful with the clutch springs, as opening them too much can result in material damage. Cleaning ...

English - 31 7.9 Assembly of centrifugal clutch 1 Insert the clutch springs on the side of the shoes without text. See figure 17. 2 Screw in the clutch (anti-clockwise) until it stops. Then tighten the clutch using tool 575 25 14-01 and a suitable socket wrench or combination span- ner. Tightening t...

32 - English D D D D E Repair Instructions 7.11 Assembling the oil pump and screen 1 Lower the oil filter in place and replace the oil pump as outlined in figure 19 and tighten the screws. 2 Fit the pump drive wheel, the needle bearing, the drive sprocket, the clutch drum and the clutch, us- ing a t...

English - 33 Repair Instructions 7.13 Assembling the intake system 1 Assemble the intake system. 2 Fit the lower screws of the intake system using the POP-out hole and the fuel hose hole. Fit the other screws. Fit the fuel hose and the throttle cable to their attachments. See figure 24. Fit the rubb...

English - 35 Repair Instructions Function The carburettor operates differently in the following modes: • Cold start mode • Idling mode • Part throttle mode • Full throttle mode In cold start mode the choke valve H is completely shut. This increases the vacuum in the carburettor and fuel is easier to...

40 - English Fitting on the saw1 Press the connector together as outlined in figure 44 and push it into place in the holder. Repair Instructions Leak in Fault with Diffuser jets Needle valve Leak in the impulse pipe Pump membrane Ventilation hole on the Control membrane metering unit. Pressure testi...

42 - English 7.15 Tank unit Dismantling 1. Drain the fuel from the tank. 2. Remove the cylinder cover, the clutch cover, the chain and the bar. See the Operator’s Manual. Dismantle the carburettor as outlined in “Dis- mantling the carburettor”. 3. Loosen the hoses A to D. See figure 50. 4. Loosen th...

English - 43 Assembly 1. Thread the throttle cables in the connection M as outlined in figure 55. NOTE! The figure is shown from underneath. 2. Run the fuel hose D through hole K and hoses B and C in hole L. See figure 55. Pull the hoses so that the collars are on each side of the bot- tom on the ca...

44 - English 1 When replacing the fuel filter, the old fuel filter must be taken out of the tank unit using special tool 502 50 83-01. 2 Pull out fuel hose B from the tank unit and pull away the filter A. See figure 58. 3 Fit the new fuel filter A and press the fuel hose back into place. 7.19 Replac...

English - 45 Repair Instructions 7.21 Dismantling the piston and cylinder 1 Dismantle: • The cylinder cover• The carburettor (see “Dismantling the carburettor”) • The muffler• The vibration element• The spark plug cap• The intake system 2 Unscrew the cylinder’s four screws and carefully lift away th...

English - 47 Faults and causesScore marks on the piston (A) 1. Leakage, check not carried out.2. Too low octane fuel.3. Too low or incorrect oil in the fuel. Carbon build-up (B) 1. Too much or incorrect oil in the fuel. See Figure 63. Piston ring breakage 1. Piston ring worn out.2. Oversized piston ...

48 - English Repair Instructions WARNING!Once the cylinder has been pressure tested, make sure the inlet manifold is fitted correctly. Otherwise the chainsaw can be damaged. 7.23 Pressure testing the cylinder 1 Loosen • The cylinder cover• The carburettor 2 Attach the cover plate 574 71 14-01 and pl...

52 - English Fig 80 Fig 81 8 Assemble the following parts: A. Tank unit. See page 43. B. Piston and cylinder. See page 47. C. Muffler. See page 19. D. Carburettor. See page 40. E. Centrifugal clutch. See page 31. F. Electrical System. See page 29. G. Starter. See page 25. H. Bar and chain. See the O...

English - 53 Repair Instructions 7.25 Assembling a complete crankshaft 1 Fit the complete crankshaft in the crankcase. Fit the following parts: • The piston and cylinder *• The fuel unit *• The handle system *• The muffler *• The hand guard *• The bottom of the carburettor *• The carburettor *• The ...

54 - English Repair Instructions 7.26 Replacing the bar bolt Replacing a bar bolt with intact crankcase 1 Empty the oil tank. 2 Knock in the old bar bolts from the outside so that they end up in the oil tank. 3 Remove the bolts from the oil tank. 4 Attach a wire to the head of the bar bolt, lower th...

56 - English Troubleshooting 8 Troubleshooting Contents 8.1 Troubleshooting ..............................................................................................................57 8.2 Troubleshooting methods ......................................................................................

English - 57 Troubleshooting Starting Idling (low speed) Idling (low speed) (continued) Leaking inlet hose (rubber) Loose carburettor mounting Loose or faulty fuel pipe Blocked fuel filter Blocked fuel line Tank ventilator blocked The throttle valve shaft is inert Throttle stay is binding Defective ...

58 - English Troubleshooting Acceleration and retardation Does not accelerate The engine stops when releasing the throttle Blocked air filter Tank venting clogged Blocked fuel filter Blocked fuel line Loose or faulty fuel pipe Blocked impulse channel The cover on the carburettor pump side is loose F...