Husqvarna 331R Operator's Manual
Husqvarna 331R Operator's Manual

Husqvarna 331R Operator's Manual

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331R, 331RB
EN
Operator's manual
2-28

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Table of Contents
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Summary of Contents for Husqvarna 331R

  • Page 1 331R, 331RB Operator's manual 2-28...
  • Page 2: Table Of Contents

    Contents Introduction..............2 Troubleshooting............23 Safety................4 Transportation and storage...........24 Assembly..............10 Technical data.............. 24 Operation..............15 Accessories..............25 Maintenance..............20 EC Declaration of Conformity........26 Introduction Product description the product for other tasks than grass trimming and grass clearing. Use a grass blade or trimmer head to This product is a brushcutter with a combustion engine.
  • Page 3: Product Overview

    Product overview 331R 331RB 1. Grease filler cap, bevel gear 19. Support flange 2. Bevel gear 20. Drive disc 3. Cutting attachment guard 21. Locking pin 4. Shaft 22. Socket spanner 5. Loop handle 23. Transport guard 6. Start throttle button 24.
  • Page 4: Symbols On The Product

    Symbols on the product WARNING! This product is dangerous. Air purge bulb. (331R) Injury or death can occur to the operator or bystanders if the product is not used carefully and correctly. To prevent injury to the operator or bystanders, read and obey all safety instructions in the The direction to close the choke.
  • Page 5: General Safety Instructions

    physician and medical implant manufacturer before you operate the product. CAUTION: • Do not let a child operate the product. Do not let a Damage to the product. person without knowledge of the instructions operate the product. Note: This information makes the product easier to •...
  • Page 6: Personal Protective Equipment

    Do not touch the bevel gear after the engine stops. The bevel gear is hot after the engine stops. Hot areas can cause injury. • Stop the engine before you move the product. 331R 331RB • Do not put down the product with the engine on. •...
  • Page 7 Examine the cutting attachment guard for damage and replace if it is damaged. Only use the approved guard for the cutting attachment. Harness quick release (331R) WARNING: Do not use the harness if the harness quick release (A) is damaged.
  • Page 8: Cutting Equipment

    To loosen and tighten the locknut, use a socket wrench with a long shaft. The arrow in the picture shows the area where you can operate the socket wrench. 331R 331RB WARNING: When you loosen and The muffler keeps the noise level to a minimum and tighten the locknut, there is a risk of keeps exhaust fumes away from the operator.
  • Page 9: Fuel Safety

    Cutting equipment Grass blades and grass cutters • Use the blades and grass knives to cut coarse grass. • Use the product with an approved grass blade. Do not use a grass blade without proper installation of all required parts. Make sure that the installation is done correctly and that the proper parts are used.
  • Page 10: Safety Instructions For Maintenance

    1. Install the handlebar in the handlebar clamp on the shaft. To install the main body (331R) 1. Connect the engine (A) to the tube (B) with four screws (C). 2. Install the top part of the handlebar clamp onto the handlebar.
  • Page 11 10. Connect the stop switch wires (H) with the connectors from the engine. To connect the throttle cable and stop switch wires (331R) 1. Remove the air filter cover. 2. Install the throttle cable (A) through the carburettor bracket (B).
  • Page 12 To connect the throttle cable and stop 1. Attach the blade guard/cutting attachment guard (A) onto the shaft and tighten with the bolt (L). switch wires (331RB) 1. Connect the throttle wire to the carburetor connection and close the holder. 2.
  • Page 13: To Install The Transport Guard

    2. Attach the drive disc (B) and support flange (G) to the output shaft. WARNING: If you do not install the the blades correctly, it can cause injury. 1. Make sure that the lifted section on the drive disc/ support flange engages correctly in the center hole of the blades.
  • Page 14 1. Remove the bolt (A) on the joint (B) of the outer pipe. 4. Adjust the side straps to make the product weigh equally on your shoulders. a) (331R) 2. Align the groove (C) of the liner with the thread hole and tighten the screw.
  • Page 15: Operation

    • Always use a fuel container with an anti-spill valve. • If Husqvarna two-stroke oil is not available, you can • Make sure that the area near the fuel tank cap use another two-stroke oil of good quality that is is clean.
  • Page 16: To Start And Stop

    7. Examine the stop switch. 8. Examine the product for fuel leaks. To start a cold engine (331R) WARNING: Before you start the product, install the complete clutch cover and shaft. The loose clutch can cause injury.
  • Page 17 Do not use a product with damaged spark plug cap.. To start a warm engine (331R) 1. Put the stop switch to the start position. 2. Press the air purge ten times.
  • Page 18: To Operate The Grass Trimmer

    To stop • Push the stop switch to stop the engine. 331R 331RB To operate the grass trimmer • Move along slopes, not up and down. To clear grass with a grass blade...
  • Page 19: To Cut The Grass

    To clear To cut the grass 1. Make sure that the grass trimmer line is parallel to the ground when you cut. To achieve the best results: • Hold the trimmer so that the trimmer head is just above the ground. •...
  • Page 20: Maintenance

    Maintenance product. The intervals are different if you do not use the WARNING: Read and understand the product each day. Only do the maintenance work that safety chapter before you clean, repair or do is found in this manual. Speak to an approved service maintenance on the product.
  • Page 21: Cooling System

    2. Turn the idle adjustment screw counterclockwise until the cutting attachment stops. The basic carburetor settings are adjusted during testing at the factory. Adjustment must be carried out by a 331R trained technician. To do a check of the muffler WARNING: Do not use a product that has a damaged muffler.
  • Page 22: Air Filter

    Make sure to keep the felt filter dry. Water causes damage to 331R the felt filter. 7. Use Husqvarna two-stroke oil to put oil on the filter. Make sure that you remove excessive oil before you put the air filter back. CAUTION: Do not use gasoline or oil intended for four-stroke engines.
  • Page 23: Troubleshooting

    Make sure that the idle speed is correctly blocked. adjusted. b) Make sure that the fuel mixture is correct. 331R 331RB c) Make sure that the air filter is clean. • If the spark plug is dirty, clean it and make sure that...
  • Page 24: Transportation And Storage

    Keep the product and equipment in a dry and frost- does not keep moisture. proof area. • Keep the product tightly attached during transport. • Clean the product. Technical data unit 331R 331RB Engine specifications Cylinder displacement 32.6 32.6 Cylinder bore 36.0 36.0 Stroke 32.0...
  • Page 25: Accessories

    Note 2: Equivalent emission sound pressure level at the operator position, determined in accordance with EN ISO 22868. The uncertainty of stated values is 3 dB(A). Note 3: Sound power level measured according to EN ISO 22868. The uncertainty of stated values is 3 dB(A). Accessories 331R, 331RB 1014 - 004 - 06.03.2024...
  • Page 26: Ec Declaration Of Conformity

    2, D-90431 Nuernberg, Germany, 0197, has carried out a voluntary examination on behalf of Husqvarna Husqvarna AB claims sole responsibility for the object AB, providing AM 50613402 for 331R - Certificate of this declaration: Trimmer and/or Brushcutter powered of Conformity to EC Council directive 2006/42/EC by petrol, platform(s) GZ32B representing model(s) for machinery.
  • Page 27 593707601 1014 - 004 - 06.03.2024...
  • Page 28 1014 - 004 - 06.03.2024...
  • Page 29 1014 - 004 - 06.03.2024...
  • Page 30 1014 - 004 - 06.03.2024...
  • Page 31 1014 - 004 - 06.03.2024...
  • Page 32 Original instructions 1141091-26 Rev. C 2024-03-06...

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331rb

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