WARNING: All personnel that repair or do servicing on the product must read and understand the safety instructions in this workshop manual. 1.5 Servicing tools The manual gives information about necessary servicing tools. Always use original tools from Husqvarna. 1331 - 001 - Introduction - 3...
2 Safety 2.1 Safety definitions Read the operator's manual carefully and make sure that you understand the Warnings, cautions and notes are used to point out instructions before use. specially important parts of the manual. WARNING: Used if there is a risk of injury or Use hearing protection and eye death for the operator or bystanders if the protection.
3 Servicing tools 3.1 Servicing tools overview Position Designation Used for Order No./Source Carb twist drill, 0.197 in./5 mm To install a new engine. Inner puller To remove the clutch. There are many manufacturers, for example: Kukko, Baureihe Drill tool To install a new engine.
4 Prepare and do servicing on the product 4.1 Maintenance schedule Note: For servicing instructions for the engine, refer to engine manual. Operation Before When months months each Daily At 8 h At 50 h Weekly suction or 1000 or 2000 is low Look for signs of wear, damage or loose connections of the controls.
4.3 To remove and install the ignition key WARNING: Remove the ignition key before you do servicing on the product. 1. Turn the ignition key in the engine START/STOP switch to the "0" position. 2. Pull out the ignition key from the engine START/ STOP switch.
5 Function overview 5.1 Type plate/Product serial number The product serial number is given on the type plate. Supply the model name and the article number when you send an order for spare parts. 5.2 Type plate overview Product # : Model : Serial : 1.
6.1.2 Overview of the electrical system in the control panel 1. Connection for the hour meter 2. Connection for engine START/STOP switch 3. Connection for engine START/STOP switch 4. Connection for fan switch 5. Warning indicator for the fan 6. Fuse 6.2 To clean and examine the product parts •...
6.3 Top cover 6.3.2 To remove the jet pulse cleaning kit 1. Remove the 3 rivets on the top cover to get access 6.3.1 To remove the top cover to the jet pulse cleaning kit. 1. Loosen the clamp rings and remove the hoses from the top cover.
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• To clean the prefilter with an external dust extractor, 6.4.3 To replace the HEPA filter do these steps: Only use Husqvarna HEPA filter. To remove the a) Remove the top cover. Refer to WARNING: Use approved protective gloves top cover on page 11 .
3. Remove the HEPA filter cover. 3. Remove dust from the container with a moist cloth. 4. Replace decals that are damaged. 6.5.3 To install the container • Install the container in the opposite sequence to remove the container on page 13 . 6.6 Engine 6.6.1 To remove and install the engine 1.
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4. Disconnect the cable for the engine START/STOP 7. Remove the 4 bolts. switch. 5. Disconnect the engine positive cable. 8. Remove the engine. 6. Loosen the 4 screws (C) and remove the clutch guard (D). 9. Install the engine in the opposite sequence. 14 - Repair and servicing 1331 - 001 -...
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6.6.2 To install a new engine 5. Unlock the engine plate from the guard for the fan. Do 1 of these procedures: To remove 1. Remove the defective engine. Refer to a) If it is locked with rivets, remove the rivets with a and install the engine on page 13 .
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7. Install the engine holders on the new engine. 10. Install the oil drain hose on the new engine. 11. Loosen the 3 set screws in the top clutch and lower the top clutch to the lower clutch. 8. Install the top clutch on the new engine and tighten the 3 set screws.
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a) Remove the set screw. e) Use Loctite 243 in the hole. Put the set screw into the hole and tighten the set screw. Make sure that the set screws are equally tightened. b) Install the drill tool into the hole. 15.
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17. Install the spring pins in the 2 holes. This locks the 20. Connect the cable for the engine START/STOP guard for the fan to the engine plate. switch. 18. Make sure that the distance between the field plate 21. Install the throttle wire on the bracket (C). To open or and clutch element is correct.
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24. Connect the engine positive cable. distance between the field plate and clutch element is more than 0.03 in./0.8 mm. 1. Loosen the 4 screws (A) and remove the clutch guard (B). 6.6.3 To open or close the air gap at the magnetic clutch The correct distance between the field plate and clutch element is 0.016 in./0.4 mm (-0.008 in./0.2 mm, +0.012...
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a) Push the shims (D) into the space between the b) Push the 3 shims into the space between the engine mounting plate and engine holders. mounting plates in the clutch. The slot on the shim must align with the bolt. b) Tighten the 4 bolts (E).
6.7 Fan 3. Remove the spark plug with a spark plug wrench. 6.7.1 To replace the fan 1. Loosen the 2 screws and remove the top guard from the side of the product. 4. Examine the spark plug and replace it if it is damaged.
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3. Loosen the 4 screws and remove the top guard from 8. Disconnect the cables from the quick connector. the opposite side of the product. 9. Remove the 4 screws from the bottom of the HEPA 4. Loosen the 5 screws and remove the front guard. filter container.
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11. Remove the 2 screws and washers from the side of 14. Loosen the 4 screws and remove the clutch. the control unit. 12. Lift and remove the HEPA filter container and the control unit from the product. 15. Remove the 4 screws. 13.
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17. Remove the metal spacer, the shim and the key. Do 20. Remove the vibration damping unit. Do not discard not discard the metal spacer, the shim and the key. the vibration damping unit. 18. Remove the 4 nuts and washers. 21.
6.8 Electrical system 23. Attach the vibration damping unit. 6.8.1 To replace the fuses 1. Remove the fuse cap (A). 24. Attach the shim, the key and the metal spacer onto the new fan. 2. Pull the fuse (B) from the fuse holder. 3.
7 Transportation 7.1 Transportation of the product • Make sure that the Longopac dust bag is empty before a transportation. • Make sure that the Longopac dust bag is attached to the product during transportation. • Make sure that the inlet plug is engaged into the inlet.
8 Troubleshooting 8.1 Troubleshooting Problem Cause Solution The engine does not There is no fuel. Fill the fuel tank. start. The fuel does not go into the engine. Replace the fuel tank. Do a check of the fuel hose and the regulator. There is no spark.
10 Technical data 10.1 Technical data Engine manufacturer Honda Engine power, HP/kW. 10.2/7.6 Starter Electric Battery type (recommended) AGM (Gel) Battery voltage, V Battery size, max (LxWxH), in./mm 5.9x3.4x5.7/150x88x145 Battery capacity, min Ah Cold cranking, min Amperes Max airflow, CFM/h / m 285/484 Max vacuum, kPa Water lift, in.