Operator Manual SG13B / 966042601 / 2009-03 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
CONTENTS INTRODUCTION................................................................ 4 Good Service............................................................... 4 Serial Number.............................................................. 4 SYMBOLS AND DECALS.................................................. 5 SAFETY............................................................................. 7 General use................................................................. 7 Preparations....................
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 life-span of your machine and even increase its resale value. Please contact your dealer for more information.
symbols and decals IMPORTANT INFORMATION WARNING! Xxxx xxx xxxx xx xxxx x xxxx. Xxxx xxx xxxx xx xxxx x xxxx. Used in this publication to notify the reader of a risk of personal injury, particularly if the reader DOES NOT follow the instructions given in the manual. Used in this publication to notify the reader of a risk of material damage, particularly if the reader DOES NOT follow the instructions given in the manual. Used also when there is a potential for misuse or misassembly.
symbols and decals 9 3 4 OFF ON 12 5 11 10 6 Decal 3 Decal 5 Important information Read and make sure you understand the Operator’s Manual before use or maintenance. To obtain a replacement manual, contact your dealer. Observe all safety instructions; otherwise you may injure yourself or others. Make sure the machine is in serviceable condition prior to use. Stop the engine and wait until all machine movement comes to a standstill before service, adjustment or cleaning.
SAFETY General use This manual is a valuable document. Read the contents carefully before using or servicing the machine. The following of instructions (use, service, maintenance, etc.) by all who operate this machine is important for the safety of the operator and others. It can also considerably increase the life span of the machine and increase its resale value. Read the manual carefully and make sure you understand it before using the machine or performing any maintenance.
SAFETY • • • • • • • • • • • • • • • • Follow all safety instructions. Failure to do so may result in injury to yourself or others. Accident prevention regulations, other general safety regulations, occupational safety rules and traffic regulations must be followed without fail. 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.
SAFETY Preparations • • • • • • • • • Make sure that you always have first aid equipment 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. Make sure animals and people maintain a safe distance from the machine. Check that the dead man’s grip and all guards are fitted and functioning. DO NOT use the machine if it is not working properly.
SAFETY Operating • • • • • • • • • • • • 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 coordination. Never use the machine indoors or in spaces lacking proper ventilation. Make sure you have a proper foothold when using the machine, particularly when backing. Walk, don’t run. Never work on wet grass. Poor traction may cause you to slip.
SAFETY Movement/Transport • • • • • • • To turn and steer the machine, press down on the handle and turn on the back wheels. Turn off the engine and allow it to cool at least two minutes before transport. Fold the handle down if the machine is equipped with a collapsible handle. Use safe lifting and moving techniques when loading/unloading the machine. It is recommended that two people lift the machine. Activate the parking brake during transport.
SAFETY 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. Fuel System • • • • • • • • • • Store fuel only in containers approved for that purpose. Never remove the fuel cap and fill the fuel tank when the engine is running. Always stop the engine when refueling. Do not smoke when filling the gasoline tank and do not pour gasoline in the vicinity of sparks or open flame.
SAFETY Maintenance • • • • • • • • • • • • • Never make adjustments with the engine running. Disengage the drive units, shut off the engine and wait until all moving parts come to a complete stop before making adjustments, performing maintenance or cleaning the machine. Disconnect the spark plug cable before beginning repair work. Keep all components in serviceable condition and make sure all nuts, bolts and other hardware are tight. Replace worn or damaged decals. Be careful when checking work tools.
Protection equipment Personal Protection Equipment Consult your Husqvarna dealer when selecting protective equipment. 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 need to cut back the object with a power saw.
SET-UP 1. 2. 3. 4. Remove crate top and sides. Remove upper handle bar assembly and lay aside. Open bag containing loose hardware. Using four (4) screws, flat washers and nuts attach the upper handle bar assembly to lower handle bar assembly. NOTE: Handle fit is tight. When aligning holes use a tapered type pilot to help align holes (i.e. punch or phillips style screw driver). 5.
SET-UP 7. Set the brake rod assembly into the brake bracket. The brake rod assembly needs to be adjusted before connecting the yoke to the brake. Turning the yoke clockwise shortens the rod, tightening the grip on the brake disc by the brake pads. Counterclockwise loosens the clamping force. 8. After adjustment, attach the yoke to the brake’s top mounting hole using the clevis pin and cotter pin. 9.
SET-UP 13. Push throttle control lever on console forward to full extent. Pull throttle control lever on engine back as far as possible. Insert “L” end of throttle cable into the outside hole of the engine throttle control lever. 14. Attach the throttle cable to the engine using the double wire clamp removed previously. ENGINE THROTTLE CONTROL LEVER THROTTLE CABLE FORWARD 15. Test throttle control by pulling back throttle handle on console. Throttle arm on engine should be pushed completely forward.
CONTROLS Main Components and Controls 5 7 8 9 10 6 4 5 8 3 11 2 1 8064-005 1. 2. 3. 4. 5. 6. Handle Operator Presence Grip Bar Brake Lever Cutter Drive Belt Guard Front Lifting Handles Cutting Wheel 18 - HUSQVARNA 7. 8. 9. 10. 11.
CONTROLS Engine Exterior engine components and controls. 1. Speed control lever 2. Starter handle 3. Air filter 4. Muffler 5. Fuel Valve 6. Choke control 7. Oil drainage 3 1 4 2 6 5 7 8011-126 8. 9. 10. 11. Oil dipstick Oil level guard Fuel tank Fuel filler cap 11 10 9 8 8011-273 Speed Control Lever The speed control lever on the engine is normally not used. It is connected to the throttle on the handle.
CONTROLS Starter The magnapull-type starter has spring return. To replace the return spring or starter cord, contact an authorized service workshop. IMPORTANT INFORMATION Do not let the recoil cord snap back by itself. This may damage the cord or the recoil starter assembly. Starter Handle Misuse of the starter handle can damage the starter. Do not twist the starter cord around your hand. Pull out the handle slowly until the gears mesh.
CONTROLS Air Filter The engine air filter consists of a cyclone filter and a fine filter. Air is drawn in through the screen (1) on the cyclone filter and coarser pollutants collect in the container (2). The fine filter, consisting of a foam rubber pre-filter and a paper filter cartridge, is located under the cowling (3). The cowling and the cyclone filter can be removed by removing the wing nut (4). See Replacing the Air Filter in the Maintenance section for cleaning instructions.
CONTROLS Oil Dipstick The dipstick for the crankcase oil reservoir is located on the front of the engine. Refill the engine oil in the hole where the dipstick fits. When checking the oil level, the dipstick should not be screwed in. The machine should be parked on even ground with the engine stopped. Never run the engine without the dipstick in place. The engine has an electronic oil level guard. It stops and cannot be started if the level becomes too low.
CONTROLS Fuel Tank Underneath the tank, there is a fuel filter combined with the fuel valve. Tank capacity is 1.72 gallons (6.5 liters) Fueling Read the safety instructions before fueling. Keep the fuel and fuel tank clean. Avoid filling the machine with dirty fuel. Make sure the fuel cap is properly tightened and the gasket is not damaged, particularly before washing the machine. Use unleaded gasoline with minimum 86 octane rating. Never use gasoline mixed with two-cycle oil.
CONTROLS Operator Presence (OP) Grip Bar The bar must be held against the handle for the engine to run. If the grip is released, the ignition system shortcircuits and the engine stops. WARNING! Do not over-ride the safety system by binding the bar to the handle. 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.
CONTROLS Brake The lever activates a disk brake on the left wheel when it is pulled backwards. The brake should always be activated when the grinder is parked, is being transported or when it is in operation WARNING! NEVER operate a machine with a defective brake. WARNING! To avoid the risk of losing control of the machine, DO NOT pull out the adjustment bar when the cutting wheel is rotating. Handle Adjustment Bar As the tree stump is ground away, the handle position will need to be adjusted.
operation Preparation • • • 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. Review all of the machine’s safety decals. 8011-141 • Use a hard hat, ear and eye protection. A mesh visor alone does not provide sufficient eye protection; supplement with protective glasses.
operation 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. Push the lever fully to the right. 8060-024 Choke control When starting the engine warm, the lever should be in the right position; see the illustration. When starting the engine cold or partially warm, place the lever completely or partly to the left.
operation Handle Engine Switch Set the toggle switch to ON. Engine ON/OFF Switch The switch on the engine is disconnected. Use the Handle Engine Switch. ON OFF 8060-026 OP Grip Bar Hold in the bar for the OP grip bar against the handle. 8060-029 Starter Handle The OP grip bar must be held against the handle when starting the engine. Misuse of the starter handle can damage the starter. DO NOT twist the starter cord around your hand. Pull out the handle slowly until the gears mesh.
operation Procedure WARNING! NEVER allow the blade to touch the ground until it has stopped turning 1. Place the cutting blade near the top front edge of the tree stump. 2. Set the brake to lock position. 8011-201c 3. Set the throttle to SLOW (START) DISENGAGE. 4. Set engine switch on handlebar to ON.
operation 5. Tilt the machine on its wheels, lifting the cutting wheel off the ground. 6. Hold in the OP grip bar and start the engine. 7. Allow the engine to warm up for two minutes at idle before grinding. 8060-200 8. Set the handle throttle to FAST to engage clutch. 8060-027 9. Place the middle of the cutting wheel approximately 1" (2.5 cm) above and ¾" to 1½" (2-4 cm) into the stump. 10. Place the cutting wheel in the upper front edge of the stump.
operation 11. Before moving the machine forwards, you should ensure that the cutting wheel is above the ground and located on either side of the stump. Move the machine forward by releasing the brake, pushing it forward, activating the brake again and repeating Steps 9 and 10. 12. Repeat Steps 9 through 11 until the upper portion of the stump has been removed. DO NOT cut deeper than ground level at this stage. 13. Set the throttle to SLOW/(START) DISENGAGE and wait until the cutting wheel stops rotating.
operation Normal Shutdown Throttle Set the throttle to SLOW/DISENGAGE. If the engine has been running full out, let it run easily for about 30 seconds to 1 minute at low speed. DO NOT let front of unit touch ground until you are sure cutting wheel has stopped turning. Engine switch Wait at least 20 seconds, until the blade has stopped. Set the toggle switch to OFF. Make sure that the blade is resting against the ground and has stopped completely before doing anything.
MAINTENANCE Maintenance Schedule WARNING! 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. No service operations may be performed on the engine or unit unless: The engine is stopped. The ignition cable has been removed from the spark plug. The machine is securely parked where it will not tip or begin rolling.
MAINTENANCE 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 (1), air channels and air intake screen (2) must be cleaned. 1 2 8011-126 Remove the three screw holding the cyclone housing. Remove the housing with the air intake screen and remove the air channels. The air channels may remain in the upper portion or follow along with the housing when removed.
MAINTENANCE 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. Risk for burns. For cleaning or replacement: 1. Undo the wing nut (1) and lift off the cyclone filter with the air filter cowling (2). 1 2 8011-126 2.
MAINTENANCE 3. Remove the wing nut in the air filter and remove the paper filter. IMPORTANT INFORMATION DO NOT use compressed air over 2 bar/30 PSI to clean the paper filter. DO NOT wash the paper filter. DO NOT oil the paper filter. 8011-031 4. Tap the paper filter against a fixed surface to remove dust. If the paper filter is still dirty or damaged, it must be replaced. 5. Mount the paper filter in the air filter housing and tighten the wing nut. 6. Refit the pre-filter on the paper filter. 7.
MAINTENANCE 2. Unscrew the sludge reservoir (1). Make sure not to misplace the o-ring (2). 3. Clean the reservoir and the o-ring using a cleaning solvent and dry carefully. 4. Put the o-ring in place in its track and replace the sludge reservoir. Tighten it moderately to avoid damaging the threads. 5. Turn the fuel valve to ON and check for leaks. If it leaks, replace the o-ring. 1 2 8011-128 Idle Adjustment WARNING! Risk for carbon monoxide poisoning. Perform the adjustment outdoors. 1.
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. 1. Remove the ignition cable shoe and clean around the spark plug. 2. Remove the spark plug with a 13/16" (21 mm) spark plug socket wrench. 3. Check the spark plug.
MAINTENANCE Drive Belt 1. Remove the belt guard by removing the three acorn nuts and lockwashers on the front of the belt guard. WARNING! Prevent the engine from being started by removing the ignition cable from the spark plug. 8060-226 2. Check that the belt is properly tensioned by squeezing the belt together. It should be possible to squeeze the belt down about ¼ - 3/8" (6 - 10 mm) from the original position. 3. Loosen screws holding cover plate to belt guard backing plate. 8060-227 4.
MAINTENANCE 5. Loosen the locking nuts (B) on the two tension bolts. 6. Turn the two tension bolts (C) counter-clockwise to loosen the belt or clockwise to tighten it. A C B IMPORTANT INFORMATION If pulley on cutter head shaft must be moved, the set screws MUST be fully removed, fresh “Loctite 242” put on threads and re-torqued to 100 - 110 in./lbs. (17513 / 19264 N•m). 7. Check that the pulleys are aligned using a straight edge along the inside face of the clutch and pulley. Pulleys must be inline.
MAINTENANCE Removing/Refitting Wheels Left Wheel To remove the left wheel (1) from the stump grinder, remove the locking collar (2), the ¼" screws (3), the ¼" hex nuts (3), the springs (4) and the brake pad (5). The wheel can now be removed from the axle. Right Wheel To remove the right wheel (6), remove the locking collar (7) and slide the wheel off the axle. 6 7 RIGHT FRONT 3 LEFT 4 5 3 2 1 8011-217 Brake Adjustment Overcentering type handle activities brakes.
MAINTENANCE Two Minute Rule The machine may be tipped backward or on its side to facilitate access for cleaning or service, but no longer than 2 minutes. If the machine is held in this position for too long, the engine can be damaged by gasoline draining into the crankcase. Should this happen, perform an extra oil change on the engine. Remove the spark plug and turn the engine over a few revolutions with the starter handle before starting the engine again.
LUBRICATION HUSQVARNA-43
LUBRICATION Engine Oil The engine should be warm (but not hot) when changing the oil. Warm oil flows out faster and leaves a smaller quantity of old oil inside the engine. 1. Place a suitable container underneath the oil drainage screw. Remove the oil dipstick and the oil drainage screw on the back surface of the engine. Tip: Make a channel using a piece of cardboard to lead the oil directly into the container to avoid soiling the machine chassis. 2.
LUBRICATION Checking Engine Oil Level Make sure that the machine is parked on flat ground with the engine stopped when checking the oil level. 1. Unscrew the dipstick and wipe it using paper towel or a lint-free rag. 2. Replace the dipstick without screwing it in. Remove and check the level on the dipstick. 3. Fill oil as necessary to the lip of the dipstick hole. Oil type, see above. 4. Check that the rubber gasket is in position and screw the dipstick back into place.
TROUBLESHOOTING PROBLEM CAUSE ACTION User error Fuel valve closed Choke valve open Engine switch in OFF position Open the fuel valve Close the choke with cold engine Turn the engine switch to ON Fuel system Fuel tank empty Machine stored without observing proper procedure from chapter “Storage/Winter storage” Contamination, water or ice in fuel system Fill with fuel Clean tank, sludge reservoir and empty carburetor, fill the tank with fresh fuel Clean tank, sludge reservoir and empty carburetor, fil
TROUBLESHOOTING PROBLEM CAUSE ACTION Pulleys not aligned Adjust belt tension Belt comes off Belt tension is insufficient Belt engages late or slips Tighten the belt as described in the operator’s manual Reduce cutting depth Belt not staying tight after adjustment Damaged axle, pulley or key Replace damaged parts Make sure the setscrews are properly tightened Cutting wheel does not rotate Engine speed is insufficient to activate the centrifugal clutch Belt tension is insufficient Clutch is worn Cuttin
Storage Winter Storage At the end of the season, the machine should be readied for storage (or if it will not be in use for longer than 30 days). Fuel allowed to stand for long periods of time (30 days or more) can leave sticky residues that can plug the carburetor and disrupt engine function. Fuel stabilizers are an acceptable option as regards sticky residues during storage. If alkylate gasoline (Aspen) is used, stabilizers are unnecessary because this fuel is stable.
TECHNICAL DATA Model SG13B / 966042601 Engine Manufacturer Cylinder Volume Honda 337 cc (20.6 cu in) Power 13 hp (9.2 kW at 3600 RPM)* Torque 17.36 ft-lb / 2.4 kg-m at 2500 RPM Idling speed Oil capacity including filter Spark plug Fuel tank volume 1250-1550 RPM 2.2 qt / 2.1 liter NGK BP6ES or BPR6ES 1.7 gal. / 6.5 L Chassis Tires 4.
schematics ON/OFF SWITCH SAFETY SWITCH ENGINE ON/OFF SWITCH (DISCONNECTED) SPARK PLUG TRANSISTOR IGNITION OIL LEVEL GUARD 8064-008 ENGINE HARNESS CONSOLE HARNESS ENGINE ON/OFF SWITCH (DISCONNECTED) COLOR CODE Y - YELLOW B - BLACK TRANSISTOR IGNITION SPARK PLUG ON/OFF SWITCH MODULE SAFETY SWITCH OIL LEVEL GUARD 50 - HUSQVARNA 8064-009
SERVICE JOURNAL Action Date, stamp, signature Delivery service 1. Open packaging and make sure machine has not been damaged in transport. 2. Where applicable, assembly accompanying components. 3. Check that machine design corresponds to customer order. 4. Check that right amount of oil is in engine and transmission. 5. Check and adjust air pressure in tires. (25 psi max.) 6. Check that working equipment is properly set. 7. Check drive pulleys and sprockets for alignment. 8.
SERVICE JOURNAL Action 52 - HUSQVARNA Date, stamp, signature
SERVICE JOURNAL Action Date, stamp, signature HUSQVARNA-53
SERVICE JOURNAL Action 54 - HUSQVARNA Date, stamp, signature
HUSQVARNA PRODUCT REGISTRATION INFORMATION & WARRANTY STATEMENT All Husqvarna products can be registered online at www.usa.husqvarna.com quickly and easily regardless of their model year. Click the Support tab, then click on the Online Product Registration link, and fill out the electronic form and submit.
† Refer to Section 3 for items not covered by this warranty *All consumer product use must have been limited to the owner s residence. Warranted for noncommercial, nonprofessional, noninstitutional and nonincome producing use.
P/N 115 151327 IR 03/03/09
