Location indicators for components shown in the figures are Their use is described in the appropriate section. marked A, B, etc. The figures are numbered 1, 2 etc. Always use Husqvarna original: The location indicators and figure numbers start again from • Spares A, 1 etc.
SAFETY REGULATIONS Special instructions General instructions The fuel used in the chainsaw poses the following hazards: Workshops where chainsaws are serviced must be equipped 1. The fluid and its fumes are poisonous. with safety equipment in accordance with local regulations. 2.
SYMBOLS Symbols on the saw Symbols in this manual The markings shown below are moulded into the chainsaw casing. This symbol indicates a risk of personal injury if instructions are not followed. Choke Switch for hand grip heating Fuel filler STOP Stop button Chain lubrication adjuster...
SERVICE TOOLS Item Name Usage Ordering No. Piston stop Locking the crankshaft 502 50 33-01 The tools listed here are the Cover plate: crankcase inlet Sealing off inlet 502 54 05-01 service tools required for this Cover plate: exhaust Sealing off exhaust outlet 502 71 39-01 model of chainsaw.
TROUBLE SHOOTING Trouble shooting schematic Faults that can develop on the chainsaw are divided into four groups as follows. In each category, possible malfunctions are shown on the left, with a list of possible faults on the right. The most probable fault is given first and so on. Idling (low rpm) (cont.) Starting Difficult starting...
TROUBLE SHOOTING Acceleration and retardation High rpm Adjust H-screw Does not accelerate Will not run at full Adjust H-screw Blocked air filter throttle Adjust L-screw Blocked air filter Blocked fuel tank ventilator Blocked fuel tank ventilator Blocked fuel filter Blocked fuel filter Fuel line blocked Fuel line blocked Loose or damaged fuel line...
SERVICE INFORMATION Key to diagrams Figures next to components which are attached using bolts give the appropriate tightening torques in Nm. = Lubricate with two-stroke oil. = Lubricate with (chainsaw) chain oil. = Lubricate with grease. 10 – English...
SAFETY EQUIPMENT Chain brake Dismantling 1. First remove the following components: • Chain and guide bar. See instruction book. • Centrifugal clutch. See page 22. 2. Push the hand guard forward so that the chain brake is on. See fig. 1 3.
SAFETY EQUIPMENT Inspection Clean and inspect all components. The brake-strap thickness must not be less than 0.8 mm at any point. See fig. 5. Reassembly Assemble the chain brake as follows: min. 0.8 mm 1. Reattach the toggle joint and brake-strap. See fig. 5. 2.
SAFETY EQUIPMENT Chain catcher Remove the chain and guide bar. See instruction book. Inspect the chain catcher and replace it if it is damaged. Tighten the retaining bolts to 6 Nm. See fig. 8. Refit chain and guide bar. See instruction book. Silencer Fig.
SAFETY EQUIPMENT Throttle lock Dismantling 1. Remove the tank unit from the motor unit. See page 35. WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fluid and its fumes are poisonous. 2. Can cause skin irritation. 3.
RECOIL STARTER Starter assembly Dismantling 1. Undo the four bolts that fasten the starter assembly to the crankcase and remove it. See fig. 1. 2. Pull out the handle 20-30 cm and lift out the cord from the slot in the cord pulley. See fig. 2. 3.
RECOIL STARTER Reassembly WARNING! Make sure that the recoil spring does not fly up and cause personal injury. 1. If a new recoil spring is to be used, place the new spring, with retaining wire, such that the end loop of the spring is over the peg (A) on the cord pulley.
ELECTRICAL SYSTEM Ignition system Dismantling 1. Remove the cylinder cover and starter assembly. See page 16. 2. Release the blue lead (A) (which connects to the stop switch) from the ignition module (B). See fig. 1. 3. Remove the HT lead (C) from the spark plug, release both leads from the cable guide (D) and lift out the cable guide.
ELECTRICAL SYSTEM Reassembly Assemble the ignition system as follows: 1. Locate the flywheel on the crankshaft. Turn it gently until the key on the flywheel mates with the recess in the shaft. 2. Fit the flywheel washer and nut. Tighten the nut to 35 Nm. See fig.
ELECTRICAL SYSTEM Hand grip heater Some chainsaws are equipped with hand grip heating. The hand grip heater comprises the following components. • Generator • On/off switch • Heating element in the rear hand grip (tank unit). • Front hand grip with heating element. Trouble shooting Fig.
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ELECTRICAL SYSTEM Replacing the generator 1. Before the generator can be replaced, the following components must be removed: A. Recoil starter. See page 16. B. Flywheel. See page 18. C. Silencer. See page 14. D. Carburettor. See page 26. E. Cylinder. See page 38. 2.
CENTRIFUGAL CLUTCH Centrifugal clutch Dismantling During dismantling of the centrifugal clutch, the chain brake must be in the off position. 1. Remove the cylinder cover, chain and guide bar. See instruction book. 2. Remove the chain guide-plate by removing the bolt (A). See fig.
CENTRIFUGAL CLUTCH Cleaning and inspection Clean all components and check the following: 1. Lining thickness on the clutch shoes should not be less than 3 mm in the most worn area. See fig. 5. In order to min 3 mm avoid imbalance, all clutch shoes should be replaced at the same time.
LUBRICATION SYSTEM Lubrication system WARNING! Inadequate lubrication of the chain can result in the chain breaking which can cause serious or life threatening injury. The lubrication system comprises the following components: • Oil pump • Suction pipe with sieve. Fig. 1 •...
15"-18" from fully home, required for different lengths of guide bar. 18"-24" The table applies to Husqvarna chain oil. If another chain oil 24"- is used, the adjuster should be turned one extra turn outward in the first three cases.
CARBURETTOR Carburettor WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fluid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly inflammable. Description The diagrams with this description do not show the actual carburettor on the chainsaw.
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CARBURETTOR Function The carburettor operates differently in the following operating states: • Cold start • Idling • Part throttle • Full throttle In cold start mode (fig. 4), the choke butterfly (D) is completely closed. This increase the vacuum in the carburettor so that fuel is sucked more easily from the diffuser jets (E, F and G).
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CARBURETTOR Dismantling WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fluid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly inflammable. Removal See fig. 8. 1. Remove the cylinder cover and air filter. See instruction book.
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CARBURETTOR Cleaning and inspection 2. There is no play in the throttle and choke butterflies. WARNING! The fuel that is used in the chainsaw 3. The needle valve and its lever arm are not worn at M poses the following hazards: in fig.
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CARBURETTOR Reassembly Where no figure is referred to, see exploded diagram 12 on the previous page. Assembly Complete cleanliness is essential when reassembling the carburettor. The smallest dirt particle can cause running problems. 1. If the throttle and choke butterflies, together with their spindles, lever arms and springs were removed, these should be refitted.
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CARBURETTOR Pressure testing Pressure testing should be carried out with the carburettor fully assembled. Testing should always be carried out after the carburettor has been repaired, but can also be performed for trouble shooting before dismantling. Refer to fig. 17 and carry out the test as follows: 1.
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Firstly adjust the L-jet screw, then the idling screw T and finally the H-jet screw. The following are the recommended engine speeds: Max. overspeed Idling speed 362XP: 13 500 rpm 2 700 rpm 365: 12 500 rpm 2 700 rpm...
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CARBURETTOR Low speed jet L Find the highest idling speed by slowly turning the L-screw + 1/4 clockwise then anti-clockwise. When the highest speed has been found, turn the L-screw anti-clockwise 1/8 - 1/4 turn. WARNING! If the chain turns when idling, the T-screw should be turned anti-clockwise until the chain stops.
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2. Screw the new L-jet to the bottom and then turn it NOTE! Before making any adjustments the following counterclockwise ”D” turns. must be done! Model 362XP D = 1 • Mount, for this model, approved bar & chain combination...
TANK UNIT Tank unit WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fluid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly inflammable. Dismantling 1. Run off the fuel from the tank. 2.
TANK UNIT Cleaning and inspection Clean all components and check that the fuel line is undamaged. Reassembly 1. If the chainsaw is equipped with hand grip heating, refit the heating element into the rear hand grip, if it has been removed.
ANTI-VIBRATION SYSTEM Anti-vibration system WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fluid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly inflammable. Dismantling 1. Remove the following components: •...
PISTON AND CYLINDER Piston and cylinder Dismantling 1. Remove the following components: • Cylinder cover. See instruction book. • Spark plug. See instruction book. • Carburettor. See page 28. • Silencer. See page 14. 2. Remove the impulse hose (A) from the hole on the inlet manifold.
PISTON AND CYLINDER 2. The cylinder is free of score marks. 3. The piston is free of score marks. Smaller scratches can be polished off with fine emery paper. Max 1 mm 4. The piston ring is not burnt into its groove. 5.
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PISTON AND CYLINDER Reassembly Carry out assembly of the piston and cylinder as follows: NOTE! Ensure that no dirt or other foreign particles fall into the crankcase. 1. Oil in the needle roller bearing and fit it in the connecting rod little end.
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PISTON AND CYLINDER Pressure testing In order to carry out pressure testing on the crankcase and cylinder, the following components should be removed: • Carburettor. See page 28. • Silencer. See page 14. Carry out pressure testing as follows: 1. Fit cover plates 502 54 05-01 and 502 71 39-01 to the inlet manifold and exhaust port.
CRANKCASE AND CRANKSHAFT This section deals with the following: • Crankcase and crankshaft (describes how the whole assembly is dismantled and reassembled) • Seals (describes only replacement of seals) • Guide bar bolts (describes only replacement of the guide bar bolts) Crankcase and crankshaft Dismantling 1.
CRANKCASE AND CRANKSHAFT 8. If required, remove the crankshaft bearings from the crankcase. Proceed as follows: WARNING! The crankcase halves are hot. Risk for burns. Use protective gloves. A. Remove the rubber stop (A). See fig. 5. B. Remove the bush from the chain brake pivot (B). See fig.
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CRANKCASE AND CRANKSHAFT Reassembly Reassemble the crankcase and crankshaft as follows: WARNING! The crankcase halves are hot. Risk for burns. Use protective gloves. 1. If bearings are to be fitted, proceed as follows: A. Heat the relevant crankcase half to 200° in an oven. B.
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CRANKCASE AND CRANKSHAFT 4. Locate the guide pegs in the clutch side crankcase half, grease and locate the gasket. See fig. 12. NOTE! Continuing to pull with the assembly tool after the gasket is clamped will damage the crankshaft. 5. Use tool 502 50 30-14 and pull on the flywheel side crankcase half.
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CRANKCASE AND CRANKSHAFT Crankcase seals 1. To replace the crankcase seals, first remove the following components: On the flywheel side: • Recoil starter. See page 16. • Flywheel. See page 18. • Generator if fitted. See page 21. On the clutch side: •...