Husqvarna SG11 Operator's Manual

Stump grinder
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Operator´s manual
Please read these instructions carefully and make sure
you understand them before using the machine.



  Summary of Contents for Husqvarna SG11

  • Page 1 Operator´s manual SG11 SG13 Please read these instructions carefully and make sure English you understand them before using the machine.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Operator’s Manual for Stump Grinder SG11, SG13 Introduction ............2 Using your stump grinder ....... 23 Congratulations ..........2 Operating on hills ........... 25 Use ..............2 Transport ............25 Insure your machine ........2 Maintenance ............26 Good service ............
  • Page 4: Introduction

    INTRODUCTION Congratulations Thank you for purchasing a Husqvarna stump grinder. Through your confidence in us, you have chosen an exceptionally high quality product. This manual is a valuable document. It describes your new Husqvarna machine. Read the manual carefully before attempting to use the machine. Following the instructions (use, service, maintenance, etc.) can considerably increase the lifespan of your machine and even increase its resale value.
  • Page 5: Symbols And Decals

    Decals and machine-bound instructions 8011-238 Decals that are missing or illegible shall be aquired/ replaced before using the machine. Husqvarna logotype Model designation SG11 Husqvarna crown Model designation SG13 General precautions Engine switch on the handle Exhaust warnings 10. Throttle Use ear and eye protection 11.
  • Page 6: Location Of Decals

    SYMBOLS AND DECALS Location of decals 8011-239 Translation of instructions Decal 3 Decal 4 Important information Warning Read and make sure you understand the Engine exhaust, some of its constituents and Operator’s Manual before use or maintenance. certain vehicle components contain or emit chemicals considered by the State of California to To obtain a replacement manual, please contact cause cancer, birth defects or other reproductive...
  • Page 7: Safety Instructions

    WARNING! The object of this manual is to help you use your Under no circumstances may the Husqvarna machine more safely and to give you original design of the machine be information about how to maintain your machine. modified without written approval Please read the manual carefully before attempting from the manufacturer.
  • Page 8 • All users shall be trained in use of the machine. The owner is responsible for training users. • Engage an authorized Husqvarna workshop for all service and repairs not described in this manual. WARNING! • Husqvarna original spare parts are designed...
  • Page 9: Preparations

    SAFETY INSTRUCTIONS Preparations • Make sure that you always have first aid equipment close at hand when using the machine. • Make sure nobody else is in the vicinity of the machine when you start the engine, engage the drive or run the machine. •...
  • Page 10: Running

    SAFETY INSTRUCTIONS Running • Do not use the machine on grades of more than 10 . • Do not use the machine if you are tired, if you have consumed alcohol, or if you are taking other drugs or medication that can affect your vision, judgment or co-ordination.
  • Page 11: Movement/Transport

    SAFETY INSTRUCTIONS Movement/Transport • To turn and steer the machine, press down on the handle and turn on the rear wheels. • Turn off the engine and allow it to cool at least 2 minutes before transport. • Be careful and use safe lifting and moving techniques when loading/unloading the machine.
  • Page 12: Fuel System

    SAFETY INSTRUCTIONS Fuel system WARNING! Gasoline and gasoline fumes are poisonous and extremely flammable. Be especially careful when handling gasoline, as carelessness can result in personal injury or fire. • Only store fuel in containers approved for the purpose. • Never remove the fuel cap and fill the fuel tank while the engine is running.
  • Page 13: Maintenance

    SAFETY INSTRUCTIONS Maintenance • Never make adjustments with the engine running. • Disengage the drive units, activate the parking brake, shut off the engine and wait until all moving parts come to a complete stop before making adjustments, performing maintenance or cleaning the machine.
  • Page 14: Protective Equipment

    PROTECTIVE EQUIPMENT Personal equipment Consult your Husqvarna dealer when selecting protective equipment. Our dealers have a broad assortment of equipment for professionals such as forestry workers and knowledge about occupational environment requirements and protective levels. Before using the stump grinder, you may in many cases need to cut back the object with a power saw.
  • Page 15: Presentation

    Congratulations on your choice of an exceptionally high quality product. This operator’s manual describes the Husqvarna stump grinder. The machines are available in two basic designs—SG11 and SG13. The machines are equipped with an 11 or 13 hp Honda four-cycle engine.
  • Page 16: Engine

    PRESENTATION Engine Exterior engine components and operating instruments: Throttle Starter Starter handle Fuel valve Choke control Air filter Spark plug 8011-126 Muffler 11. Oil dipstick engine 12. Oil drainage engine 13. Oil level guard 14. Engine switch 15. Fuel tank 16.
  • Page 17: Presentation

    PRESENTATION Starter The starter is of the magnapull type with spring return. To replace the return spring or starter cord, contact an authorized service workshop. Starter handle Misuse of the starter handle can damage the starter. Do not twist the starter cord around your hand.
  • Page 18 PRESENTATION Spark plug The engine spark plug is hidden under the ignition cable shoe. When performing service, it is important that the engine cannot start accidentally. For this reason, always remove the ignition cable shoe from the spark plug. To avoid pulling the cable, the cable shoe is equipped with a special handle;...
  • Page 19: Cutting Unit

    PRESENTATION Fuel tank Underneath the tank, there is a fuel filter combined with the fuel valve. The tank volume is 6.5 liters/ 1.72 US Gal. Fueling Read the safety instructions before fueling. Keep the fuel and fuel tank clean. Avoid filling the machine with dirty fuel.
  • Page 20 PRESENTATION Throttle The lever controls engine speed. With the lever down, the engine runs at idle and functions as start position. When the engine speed increases, the centrifugal clutch drive automatically engages the cutting wheel. 8011-180 Engine switch on the panel The engine switch can be used to stop the engine.
  • Page 21: Starting The Engine

    RUNNING Starting the engine Check that all daily maintenance as described in the maintenance schedule has been performed. Check that there is sufficient fuel in the tank. Fuel valve Open the fuel valve. Turn the lever all the way to the right.
  • Page 22 RUNNING Engine switch on the handle Set the toggle switch to ON. 8011-184 Dead man’s grip bar Hold in the bar for the dead man’s grip against the handle. 8011-185 Starter handle The dead man’s grip must be pressed in when starting the engine.
  • Page 23: Normal Shutdown

    RUNNING Normal shutdown Throttle Set the throttle to START/DISENGAGE. If the engine has been running full out, let it run easily for about 30 seconds to 1 minute at low speed. 8011-180 Engine switch Wait at least 20 seconds until the blade has stopped.
  • Page 24: Before You Start

    RUNNING Before you start Dig away the earth and remove any stones near the tree stump that may interfere with your work. Check that the ground is free of foreign objects, such as electrical cables, barbed wire, etc. Cut or trim the stump as necessary using a power saw.
  • Page 25: Using Your Stump Grinder

    RUNNING Using your stump grinder WARNING! Never allow the blade to touch the ground until it has stopped turning. Place the cutting blade near the top front edge of the tree stump. 8011-201 Set the brake to lock position. 8011-190 Set the throttle to (START) DISENGAGE.
  • Page 26 RUNNING Hold in the the dead man’s grip bar and start the engine. Allow the engine to warm up for two minutes at idle before grinding. 8011-185 8011-127 Tilt the machine on its wheels, lifting the cutting wheel off the ground/tree stump. 8011-202 Set the throttle to ENGAGE.
  • Page 27: Operating On Hills

    Never use the machine on grades of 10 or steeper. Transport The Husqvarna stump grinder can be transported in a truck, trailer, van or a large S.U.V. (Sport Utility Vehicle). The stump grinder is equipped with two lifting handles on each side so that two people can lift the machine if necessary.
  • Page 28: Maintenance

    MAINTENANCE Maintenance schedule The following is a list of maintenance procedures that must be performed on the machine. For those points not described in this manual, visit an authorized service workshop. Daily Maintenance interval months/hours maint. Maintenance Page before 3/50 12/300 -/10 1/25...
  • Page 29: Cleaning The Cyclone Filter

    MAINTENANCE Cleaning the cyclone filter The cyclone filter collects the largest contaminant particles, which collect in the container. When you can see a layer of dirt at the bottom of the container, the cyclone housing (4), air channels and air intake screen (3) must be cleaned. 8011-188 Remove the three screws holding the cyclone housing.
  • Page 30: Replacing The Air Filter

    MAINTENANCE Replacing the air filter If the engine seems weak, produces black smoke or runs unevenly, the air filter may be clogged. For this reason, it is important to clean and replace the air filter regularly (see the maintenance schedule for the proper service interval). WARNING! Allow the exhaust system to cool before performing service.
  • Page 31: Cleaning The Sludge Reservoir

    MAINTENANCE Cleaning the sludge reservoir Close the fuel valve. 8011-186 Unscrew the sludge reservoir (2). Make sure not to misplace the o-ring (1). Clean the reservoir and the o-ring in e.g. white spirit and dry carefully. Put the o-ring in place in its track and replace the sludge reservoir.
  • Page 32: Ignition System

    MAINTENANCE Ignition system The engine is equipped with an electronic ignition system. Only the spark plug requires maintenance. For recommended spark plug, see ”Technical data”. IMPORTANT INFORMATION Fitting the wrong spark plug type can damage the engine. Remove the ignition cable shoe and clean around the spark plug.
  • Page 33: Adjusting The Drive Belt

    MAINTENANCE Adjusting the drive belt Remove the belt guard by removing the three screws on the front of the belt guard. WARNING! Prevent the engine from being started by removing the ignition cable from the spark plug. 8011-226 Check that the belt is properly tensioned by squeezing the belt together.
  • Page 34: Disassembling And Reassembling The Blade, Pockets And Teeth

    MAINTENANCE Disassembling and reassembling the blade, pockets and teeth IMPORTANT INFORMATION The cutters and pockets are mounted on the cutting wheel as illustrated. L = Left mounting R = Right mounting Ensure that the tooth cutters are turned in the cutting direction. 8011-215 WARNING! The cutters can come loose from...
  • Page 35: Adjusting The Brake

    MAINTENANCE Adjusting the brake For coarse adjustment of the brake tension, do the following: Undo the nuts (A) and adjust the brake cable mounting by tension force in the handle. 8011-225 For fine adjustment of the brake tension, do the following: Undo the setscrew (1) on the brake lever knob.
  • Page 36: Lubrication

    LUBRICATION Lubrication schedule 8011-276 1. Blade shaft bearings Lubricate using a grease gun until the grease squeezes out, 2 nipples (1, 2). Use good quality MP grease. Grease from well- known brand names (petrochemical companies, etc.) usually maintains a good quality. 8011-230 34 –...
  • Page 37 LUBRICATION 2. Engine oil WARNING! Engine oil can be very hot if it is The engine should be warm (but not hot) when drained directly after stopping the changing the oil. Warm oil flows out faster and machine. Allow the engine to cool leaves a smaller quantity of old oil inside the engine.
  • Page 38: Lubricating The Cables

    LUBRICATION 3. Right wheel Lubricate using a grease gun until the grease squeezes out, 1 nipple. Use good quality MP grease. Grease from well- known brand names (petrochemical companies, etc.) usually maintains a good quality. 8011-231 Lubricating the cables Grease both ends of the cables and move the controls to end stop positions when lubricating.
  • Page 39: Troubleshooting

    TROUBLESHOOTING Symptom Cause Action The engine will not start • User error Fuel valve closed. Open the fuel valve. Choke valve open. Close the choke with cold engine. Engine switch in OFF position. Turn the engine switch to ON. • Fuel system Fuel tank empty.
  • Page 40 TROUBLESHOOTING Problem Possible solutions Belt coming off. 1. Pulleys not aligned. 2. Belt tension is insufficient. Adjust belt tension. Belt engages late 1. Tighten the belt as described in the operator’s manual. or slips. 2. Reduce cutting depth. Belt not staying tight 1.
  • Page 41: Storage

    ”Lubrication/ Lubrication schedule”. Always use genuine Husqvarna spare parts. Store the machine in a clean, dry place and An annual check-up at an authorized service cover it for extra protection.
  • Page 42: Technical Data

    TECHNICAL DATA Specifications Model SG11 SG13 Engine Honda GX340 Honda GX390 Cylinder volume 337 cm (20.6 cu in) 389 cm (23.7 cu in) Power 11 hp (8.1 kW) at 3600 RPM 13 hp (9.6 kW) at 3600 RPM Torque 23.5 Nm at 2500 RPM 26.5 Nm at 2500 RPM...
  • Page 43: Wiring Diagram

    WIRING DIAGRAM 8011-277 8011-240 Legend for color abbreviations in wiring diagram Engine switch on the engine Transistor ignition unit Black Spark plug Yellow Oil level guard Engine switch on the panel Microswitch dead man’s grip English – 41...
  • Page 44: Service Journal

    SERVICE JOURNAL Action Date, stamp, signature Delivery service Break the packaging and make sure the machine has not been damaged in transport. Where applicable, assembly accompanying components. Check that the machine design corresponds to the customer order. Check that the right amount of oil is in the engine and transmission.
  • Page 45 SERVICE JOURNAL Action Date, stamp, signature English – 43...
  • Page 46 SERVICE JOURNAL Date, stamp, signature Action ´+H"|¶6e¨...
  • Page 47 SERVICE JOURNAL Date, stamp, signature Action...
  • Page 48 114 00 29-26 ´+H"|¶6e¨ 2001W35...

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