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Husqvarna 365 X-Torq Workshop Manual
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Husqvarna 365 X-Torq Workshop Manual

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Workshop manual
365 X-Torq
372 XP X-Torq
372 XPG X-Torq
English

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Summary of Contents for Husqvarna 365 X-Torq

  • Page 1 Workshop manual 365 X-Torq 372 XP X-Torq 372 XPG X-Torq English...

  • Page 2: Table Of Contents

    Anti-vibration system ..........38 Piston and cylinder ............39 Crankcase and crankshaft ........43 Trouble shooting ............48 Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice.

  • Page 3: Introduction

    Location indicators for components shown in the fi gures Their use is described in the appropriate section. are marked A, B, etc. The fi gures are numbered 1, 2 etc. Always use Husqvarna original: The location indicators and fi gure numbers start again from • Spares A, 1 etc.

  • Page 4: Safety Regulations

    SAFETY REGULATIONS Special instructions General instructions The fuel used in the chainsaw poses the following hazards: Workshops where chainsaws are serviced must be 1. The fl uid and its fumes are poisonous. equipped with safety equipment in accordance with local 2.

  • Page 5: Symbols

    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 Choke injury if instructions are not followed. Use protective gloves. Switch for handgrip heating Use protective goggles.

  • Page 6: Technical Data

    TECHNICAL DATA Displacement Bore Stroke Max. power/rpm / cubic inch Ømm/Øinch mm/inches kW/hp/ rpm 365: 70,7/4.3 50/1.97 36/1.42 3,6/4,9 @ 10 200 372XP: 70,7/4.3 50/1.97 36/1.42 4,1/5,6 @ 10 200 372XPG: 70,7/4.3 50/1.97 36/1.42 4,1/5,6 @ 10 200 Sparkplug gap Ignition system Air gap Carburettor type...
  • Page 7 TECHNICAL DATA Idling speed Engagement speed Max. overspeed Spark plug 365: 2 700 3 500 13 300 NGK BPMR7A 372XP: 2 700 3 500 13 300 NGK BPMR7A 372XPG: 2 700 3 500 13 300 NGK BPMR7A Fuel tank volume Oil pump capacity Oil tank volume Automatic oil pump...

  • Page 8: Servicetools

    SERVICETOOLS 8 – English...
  • Page 9 SERVICETOOLS Description Used for Order No. Piston stop Locking the crankshaft 504 91 06-05 Cover plate: inlet Sealing off inlet 578 09 56-01 Cover plate: exhaust Sealing off exhaust outlet 502 71 39-01 Pressure tester Pressurising for pressure testing 531 03 06-23 Extractor Removing crankshaft 502 51 61-01...
  • Page 10 SERVICE DATA (Allen screws) 12-14 Nm 5 mm 14-15 Nm 16 mm 1,5-2 Nm 4 mm 3-4Nm 4 mm 12-14 Nm 13 mm 1-2Nm 22-25 Nm 13 mm 6-8 Nm 4 mm 5-6 Nm 4 mm 12-14 Nm 5 mm 8-10 Nm 5 mm 1-2Nm 25 Nm...
  • Page 11 SERVICE DATA (Allen screws) 8-10 Nm 4 mm 2-3 Nm 4 mm 3-4 Nm 4 mm 2,5-3,5 Nm 4 mm (x4) 3-4 Nm 4-5 Nm 4 mm 7-8 Nm 4 mm 1-1,5 Nm 3-4 Nm 4 mm 7-9 Nm 8-10 Nm 4 mm 8-10 Nm 4 mm...

  • Page 12: Service Information

    SERVICE DATA (Torx screws) (x4) 12-14 Nm 14-15Nm 16 mm 1,5-2Nm 6-7Nm 12-14Nm 13 mm 1-2Nm 3-4Nm 22-25Nm 13 mm 6-8Nm 5-6Nm 12-14 Nm 1-2Nm 8-10 Nm 1-2Nm 20Nm 3-4Nm 1-2Nm Min. 15Nm 13 mm 1-2Nm 1-2Nm Key to diagrams Figures next to components which are attached using bolts give the appropriate tightening torques in Nm.
  • Page 13 SERVICE DATA (Torx screws) 3-4Nm 8-10 Nm 2 -3Nm T 27 3-4Nm 2,5-3,5Nm 3-4Nm (x3) 3-4Nm (x1)6-7Nm T 27 (x4) 4-5Nm 7-8Nm 1-1,5Nm 5-6Nm 7-9Nm 8-10Nm 8-10 Nm T 27 3-4Nm 8-10Nm (x6) 7-8Nm 5-6Nm English – 13...

  • Page 14: Safety Equipment

    SAFETY EQUIPMENT Chain brake Dismantling 1. First remove the following components: • Chain and guide bar. • Centrifugal clutch. 2. Push the hand guard forward so that the chain brake on. See fi g. 1 3. Unscrew hand guard, two bolts. Note sleeving on the Fig.
  • Page 15 SAFETY EQUIPMENT Reassembly Assemble the chain brake as follows: 1. Reattach the toggle joint and brake-strap. See fi g. 5. 2. Grease the toggle joint (E) moving parts and locate the assembly in the chainsaw. See fi g. 6. 3. Grease and insert the lever arm (D). See fi g. 3. min.
  • Page 16 SAFETY EQUIPMENT Chain catcher Remove the chain and guide bar Inspect the chain catcher and replace it if it is damaged. Tighten the retaining bolts to 6 Nm. See fi g. 8. Refi t chain and guide bar. Silencer Fig. 8 WARNING! Do not touch the silencer before it has cooled.
  • Page 17 SAFETY EQUIPMENT Throttle lock Dismantling 1. Remove the tank unit from the motor unit. WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fl uid and its fumes are poisonous. 2. Can cause skin irritation. 3.

  • Page 18: Recoil Starter

    RECOIL STARTER Starter Dismantling 1. Undo the four bolts that fasten the starter assembly to the crankcase and remove it. See fi g. 1. 2. Pull out the handle 20-30 cm and lift out the cord from the slot in the cord pulley. See fi g. 2. 3.
  • Page 19 RECOIL STARTER Reassembly WARNING! Make sure that the recoil spring does not fl y 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.

  • Page 20: Electrical System

    ELECTRICAL SYSTEM Ignition system Dismantling 1. Remove the cylinder cover and starter assembly. 2. Release the blue lead (A) (which connects to the stop switch) from the ignition module (B). See fi g. 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.
  • Page 21 ELECTRICAL SYSTEM Reassembly Assemble the ignition system as follows: 1. Locate the fl ywheel on the crankshaft. Turn it gently until the key on the fl ywheel mates with the recess in the shaft. 2. Fit the fl ywheel washer and nut. Tighten the nut to 35 Nm.
  • Page 22 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.
  • Page 23 ELECTRICAL SYSTEM Replacing the generator 1. Before the generator can be replaced, the following components must be removed: Recoil starter. Flywheel. Silencer. Carburettor. Cylinder. 2. Detach the carburettor space bottom plate by removing the four bolts. See fi g. 13. 3.

  • Page 24: Centrifugal Clutch

    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. 2. Remove the chain guide-plate by removing the bolt (A). See fi g. 1. 3.
  • Page 25 CENTRIFUGAL CLUTCH Cleaning and inspection Clean all components and check the following: 1. Lining thickness on the clutch shoes should not be min 3 mm less than 3 mm in the most worn area. See fi g. 5. In order to avoid imbalance, all clutch shoes should be replaced at the same time.

  • Page 26: Lubrication System

    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 •...
  • Page 27 (E). The table (right) shows the number of turns outward from fully home, required for diff erent lengths of guide bar. -15" The table applies to Husqvarna chain oil. If another chain 15"-18" oil is used, the adjuster should be turned one extra turn 18"-24"...

  • Page 28: Carburettor

    CARBURETTOR Carburettor WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fl uid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly infl ammable. Description The diagrams with this description do not show the actual carburettor on the chainsaw.
  • Page 29 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).
  • Page 30 CARBURETTOR Dismantling WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fl uid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly infl ammable. Removal See fi g. 8. 1. Remove the cylinder cover and air fi lter. 2.
  • Page 31 CARBURETTOR Cleaning and inspection 2. There is no play in the throttle and choke butterfl ies. 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 fi g.
  • Page 32 CARBURETTOR Reassembly 8. Carry out pressure testing. See next page. Assembly Where no fi gure is referred to, see exploded diagram 12 on the previous page. Complete cleanliness is essential when reassembling the carburettor. The smallest dirt particle can cause running problems.
  • Page 33 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 fi g. 17 and carry out the test as follows: 1.
  • Page 34 CARBURETTOR Adjustment WARNING! The guide bar, chain and clutch cover must be fi tted before the saw is star- ted, otherwise the clutch may come loose causing personal injury. WARNING! Wear ear defenders when making ad- justments with the motor running. WARNING! Do not use the saw until it has been adjusted so that the chain is still.
  • Page 35 Due to the integrated speed limitation in the ignition system most tachometers will not indicate a speed above the value that the speed limitation is set to. Speed limitation regulates at: 365 X-TORQ 13 300 rpm, 372 XP X-TORQ 13 300 rpm, 372 XPG X-TORQ 13 300 rpm.
  • Page 36 Due to the integrated speed limitation in the ignition system most tachometers will not indicate a speed above the value that the speed limitation is set to. Speed limitation regulates at: 365 X-TORQ 13 300 rpm, 372 XP X-TORQ 13 300 rpm, 372 XPG X-TORQ 13 300 rpm.
  • Page 37 CARBURETTOR Adjustment of the H-needle. 3. While keep pressing the screwdriver, adjust the 1. Turn the H-screw counterclockwise to stop using a H-screw until the maximum engine speed at full throt common, fl at carburettor screwdriver. tle is 12 500 rpm. 2.

  • Page 38: Tank Unit

    TANK UNIT Tank unit WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fl uid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly infl ammable. Dismantling 1. Run off the fuel from the tank. 2.
  • Page 39 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. 2.

  • Page 40: Anti-Vibration System

    ANTI-VIBRATION SYSTEM Anti-vibration system WARNING! The fuel that is used in the chainsaw poses the following hazards: 1. The fl uid and its fumes are poisonous. 2. Can cause skin irritation. 3. Is highly infl ammable. Dismantling 1. Remove the following components: •...

  • Page 41: Piston And Cylinder

    PISTON AND CYLINDER Piston and cylinder Dismantling 1. Remove the following components: • Cylinder cover. • Spark plug. • Carburettor. • Silencer. 2. Remove the impulse hose (A) from the hole on the inlet manifold. See fi g. 1. 3. Detach the anti-vibration springs (B) from the cylinder.
  • Page 42 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 fi ne emery paper. Max 1 mm 4. The piston ring is not burnt into its groove. 5.
  • Page 43 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. Fig. 8 1. Oil in the needle roller bearing and fi t it in the connecting rod little end.
  • Page 44 PISTON AND CYLINDER Pressure testing In order to carry out pressure testing on the crankcase and cylinder, the following components should be removed: • Carburettor. • Muffl er. Carry out pressure testing as follows: 1. Fit cover plates 578 09 56-01 and 502 71 39-01 to the inlet manifold and exhaust port.

  • Page 45: Crankcase And Crankshaft

    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.
  • Page 46 CRANKCASE AND CRANKSHAFT WARNING! The crankcase halves are hot. Risk for burns. Use protective gloves. Remove the rubber stop (A). See fi g. 5. Remove the bush from the chain brake pivot (B). See fi g. 6. Remove the oil fi ller cap. Warm the relevant crankcase half to 200°...
  • Page 47 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 fi tted, proceed as follows: Heat the relevant crankcase half to 200° in an oven.
  • Page 48 CRANKCASE AND CRANKSHAFT 4. Locate the guide pegs in the clutch side crankcase half, grease and locate the gasket. See fi g. 12. NOTE! Continuing to pull with the assembly tool after the gasket is clamped will damage the crankshaft. 5.
  • Page 49 CRANKCASE AND CRANKSHAFT Crankcase seals 1. To replace the crankcase seals, first remove the following components: On the fl ywheel side: • Recoil starter. • Flywheel. • Generator if fi tted. On the clutch side: • Chain and guide bar. •...

  • Page 50: Troubleshooting

    TROUBLESHOOTING Troubleshooting The various faults that can aff ect a chainsaw are divided into four groups. In each group the likely symptoms are given on the left and possible causes are listed on the right. The most likely faults are given fi rst, and so on. Starting Idling (low rpm) (cont.) Diffi culty starting...
  • Page 51 TROUBLESHOOTING High rpm Acceleration och retardation Does not Adjust L screw Will not run at Adjust H screw accelerate Adjust H screw full throttle Blocked air fi lter Blocked air fi lter Blocked fuel tank vent Blocked fuel tank vent Blocked fuel fi lter Blocked fuel fi lter Fuel line blocked...
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This manual is also suitable for:

372 xp x-torq372 xpg x-torq

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