Husqvarna ST 124 Manual

Introduction

Product overview

(Fig. 1)

1. Auger engagement
2. Drive speed control lever
3. Control panel
4. Auger cable
5. Chute rotator control
6. Chute deflector
7. Clean-out tool
8. Auger housing
9. Augers
10. Skid plate
11. Tire
12. Oil fill
13. Engine
14. Lower handle
15. Drive speed control rod
16. Drive cable
17. Recoil start handle
18. Drive engagement
19. Handle grips
20. Primer
21. Choke
22. Fuel switch
23. On/off key
24. Operator´s manual

Product description

The product is a snow thrower that is used to remove snow from the ground.

Intended use

This product can be used to remove snow from fields, roads, walkways and driveways. Do not use it on slopes that are greater than 15°. Do not use the product in areas where there is much debris, dirt and protruding stones.

Symbols on the product

Note: If the decals on the product are damaged, contact the distributor to replace them.

(Fig. 2)	Warning.
	Hot surface. Risk of fire.
(Fig. 7)	Choke.
(Fig. 8)	Pull starter rope handle.
(Fig. 9)	Do not breathe in the exhaust fumes from the engine.
(Fig. 10)	Do not put any part of the body into the chute deflector or the auger housing when the augers rotate.
(Fig. 11), (Fig. 12)	Stop the engine before you remove snow from the chute deflector. Use the cleanout tool to remove snow, do not do it by hand.
(Fig. 11)	Keep hands away from the chute deflector.
(Fig. 13)	Objects can be ejected from the product.
(Fig. 14)	Keep bystanders away from the product when operating.
(Fig. 15)	Remove key before maintenance.
(Fig. 16)	Push in the on/off key to the RUN position.
(Fig. 17)	Turn the fuel switch to the ON position.
(Fig. 18)	Push the primer.
(Fig. 19)	Risk of falling.
(Fig. 20)	Move slowly rearward.
(Fig. 21)	Use approved protective gloves.
(Fig. 22)	Use a protective helmet. Use approved hearing protection. Use approved eye protection.
(Fig. 23)	Noise emissions to the environment according to European Directive 2000/14/EC and New South Wales legislation "Protection of the Environment Operations (Noise Control) Regulation 2017". Noise emission data can be found on the machine label and in the Technical data chapter.

Note: Other symbols/decals on the product refer to certification requirements for some markets.

Manufacturer

Husqvarna AB
Drottninggatan 2, SE-561 82 Huskvarna

Product damage

We are not responsible for damages to our product if:

• the product is incorrectly repaired.
• the product is repaired with parts that are not from the manufacturer or not approved by the manufacturer.
• the product has an accessory that is not from the manufacturer or not approved by the manufacturer.
• the product is not repaired at an approved service center or by an approved authority.

Safety

Safety definitions

The definitions below give the level of severity for each signal word.

Injury to persons.

Damage to the product.

Note:
This information makes the product easier to use.

Safe operation practices for pedestrian-controlled snow throwers

General
This machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury.

Training

• Read, understand and follow all instructions on the machine and in the manual(s) before operating this unit. Be thoroughly familiar with the controls and the proper use of the machine. Know how to stop the unit and disengage the controls quickly.
• Never allow children to operate the machine. Never allow adults to operate the machine without proper instruction.
• Keep the area of operation clear of all persons, particularly small children.
• Exercise caution to avoid slipping or falling, especially when operating the machine in reverse.

Preparation

• Thoroughly inspect the area where the machine is to be used and remove all doormats, sleds, boards, wires and other foreign objects.
• Disengage all clutches and shift into neutral before starting the engine (motor).
• Do not operate the machine without wearing adequate winter garments. Avoid loose fitting clothing that can get caught in moving parts. Wear footwear that will improve footing on slippery surfaces.
• Always wear safety glasses or eye shields during operation or while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from the machine.
• Handle fuel with care; it is highly flammable.
  • Use an approved fuel container.
  • Never add fuel to a running engine or hot engine.
  • Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors.
  • Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground, away from your vehicle, before filling.
  • When practical, remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such equipment on a trailer with a portable container, rather than from a gasoline dispenser nozzle.
  • Keep the nozzle in contact with the rim of the fuel tank or container opening at all times, until refueling is complete. Do not use a nozzle lock open device.
  • Replace gasoline cap securely and wipe up spilled fuel.
  • If fuel is spilled on clothing, change clothing immediately.
• Use extension cords and receptacles as specified by the manufacturer for all units with electric starting motors.
• Adjust the collector housing height to clear gravel or crushed rock surface.
• Never attempt to make any adjustments while the engine (motor) is running (except when specifically recommended by manufacturer).

Operation

• Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.
• Exercise extreme caution when operating on or crossing gravel drives or walks. Stay alert for hidden hazards or operating near public roads.
• After striking a foreign object, stop the engine (motor), remove the wire from the spark plug, disconnect the cord on electric motors, thoroughly inspect the snow thrower for any damage, and repair the damage before restarting and operating the snow thrower.
• If the machine should start to vibrate abnormally, stop the engine (motor) and check immediately for the cause. Vibration is generally a warning of trouble.
• Stop the engine (motor) whenever you leave the operating position, before unclogging the collector/ impeller housing or discharge chute, and when making any repairs, adjustments or inspections.
• Do not run the engine indoors, except when starting the engine and for transporting the snow thrower in or out of the building. Open the outside doors; exhaust fumes are dangerous.
• Exercise extreme caution when operating on slopes.
• Never operate the machine without proper guards and other safety protective devices in place and working.
• Never direct the discharge toward people or areas where property damage can occur. Keep children and others away.
• Do not overload the machine capacity by attempting to clear snow at too fast a rate.
• Never operate the machine at high transport speeds on slippery surfaces. Look behind and use care when operating in reverse.
• Disengage power to the collector/impeller when the machine is transported or not in use.
• Use only attachments and accessories approved by the manufacturer of the machine (such as wheel weights, counterweights or cabs).
• Never operate the machine without good visibility or light. Always be sure of your footing, and keep a firm hold on the handles. Walk; never run.
• Never touch a hot engine or muffler.

Clearing a clogged discharge chute

• Hand contact with the rotating impeller inside the discharge chute is the most common cause of injury associated with snow throwers. Never use your hand to clean out the discharge chute.
• To clear the chute:
  1. SHUT THE ENGINE OFF!
  2. Wait 10 s to be sure the impeller blades have stopped rotating.
  3. Always use a clean-out tool, not your hands.

Maintenance and storage

• Check shear bolts and other bolts at frequent intervals for proper tightness to be sure the equipment is in safe working condition.
• Never store the machine with fuel in the fuel tank inside a building where ignition sources are present such as hot water heaters, space heaters or clothes dryers. Allow the engine to cool before storing in any enclosure.
• Always refer to instruction handbook for important details if the snow thrower is to be stored for an extended period.
• Maintain or replace safety labels, as necessary.
• Run the machine a few minutes after throwing snow to prevent freeze up of the collector/impeller.
• When cleaning, repairing or inspecting the snow thrower, stop the engine and make certain the collector/impeller and all moving parts have stopped. Disconnect the spark plug wire and keep the wire away from the plug to prevent someone from accidentally starting the engine.

General safety instructions

• Use the product correctly. Injury or death is a possible result of incorrect use. Only use the product for the tasks found in this manual. Do not use the product for other tasks.
• Obey the instructions in this manual. Obey the safety symbols and the safety instructions. If the operator does not obey the instructions and the symbols, injury, damage or death is a possible result.
• Do not discard this manual. Use the instructions to assemble, to operate and to keep your product in good condition. Use the instructions for correct installation of attachments and accessories. Only use approved attachments and accessories.
• Do not use a damaged product. Obey the maintenance schedule. Only do the maintenance work that you find an instruction about in this manual. An approved service center must do all other maintenance work.
• This manual cannot include all situations that can occur when you use the product. Be careful and use your common sense. Do not operate the product or do maintenance to the product if you are not sure about of the situation. Speak to a product expert, your dealer, service agent or approved service center for information.
• Disconnect the spark plug cable before you assemble the product, put the product into storage or do maintenance.
• Do not use the product if it is changed from its initial specification. Do not change a part of the product without approval from the manufacturer. Only use parts that are approved by the manufacturer. Injury or death is a possible result of incorrect maintenance.
• Do not breathe in the fumes from the engine. Long term inhalation of the engine's exhaust fumes is a health risk.
• Do not start the product indoors or near flammable material. The exhaust fumes are hot and can contain a spark which can start a fire. Not sufficient airflow can cause injury or death because of asphyxiation or carbon monoxide.
• When you use this product the engine makes an electromagnetic field. The electromagnetic field can cause damage to medical implants. Speak to your physician and medical implant manufacturer before you operate the product.
• Do not let a child operate the product. Do not let a person, without knowledge of the instructions operate the product.
• Make sure that you always monitor a person, with decreased physical capacity or mental capacity, that uses the product. A responsible adult must be there at all times.
• Lock the product in an area that children and unapproved persons cannot access.
• The product can eject objects and cause injuries. Obey the safety instructions to decrease the risk of injury or death.
• Do not go away from the product when the engine is on.
• The operator of the product is responsible if an accident occurs.
• Before and while you walk rearward, look behind and down for small children, animals or other risks that can cause you to fall.
• Make sure that parts are not damaged before you use the product.
• Make sure that you are at a minimum 15 m (50 ft) away from other persons or animals before you use the product. Make sure that a person in adjacent area knows that you will use the product.
• Refer to national or local laws. They can prevent or decrease the operation of the product in some conditions.

Training

• Read, understand and follow all instructions on the machine and in the manual(s) before operating this unit. Be thoroughly familiar with the controls and the proper use of the equipment. Know how to stop the unit and disengage the controls quickly.
• Never allow children to operate the equipment. Never allow adults to operate the equipment without proper instruction.
• Keep the area of operation clear of all persons, particularly small children.
• Exercise caution to avoid slipping or falling, especially when operating the snow thrower in reverse.

Safety instructions for operation

• Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.
• Exercise extreme caution when operating on or crossing gravel drives, walks, or roads. Stay alert for hidden hazards or traffic.
• After striking a foreign object, stop the engine (motor), remove the wire from the spark plug, disconnect the cord on electric motors, thoroughly inspect the product for any damage, and repair the damage before restarting and operating the product.
• If the product starts to vibrate abnormally, stop the engine (motor) and check immediately for the cause. Vibration is generally a warning of trouble.
• Stop the engine (motor) whenever you leave the operating position, before unclogging the auger housing or chute deflector, and when making any repairs, adjustments or inspections.
• When cleaning, repairing or inspecting the product, stop the engine and make certain the augers and all moving parts have stopped. Disconnect the spark plug wire and keep the wire away from the plug to prevent someone from accidentally starting the engine.
• Do not run the engine indoors, except when starting the engine and for transporting the product in or out of the building. Open the outside doors; exhaust fumes are dangerous.
• Exercise extreme caution when operating on slopes.
• Never operate the product without proper guards, and other safety protective devices in place and working.
• Never direct the chute deflector toward people or areas where property damage can occur. Keep children and others away.
• Do not overload the product capacity by attempting to clear snow at too fast a rate.
• Never operate the product at high transport speeds on slippery surfaces. Look behind and use care when operating in reverse.
• Disengage power to the augers when the product is transported or not in use.
• Use only attachments and accessories approved by the manufacturer of the product (such as wheel weights, counterweights, or cabs).
• Never operate the product without good visibility or light. Always be sure of your footing, and keep a firm hold on the handles. Walk; never run.
• Never touch a hot engine or muffler.

Work area safety

• Thoroughly inspect the area where the equipment is to be used and remove all doormats, sleds, boards, wires, and other foreign objects.
• Disengage all clutches and shift into neutral before starting the engine (motor).
• Do not operate the product without wearing adequate winter garments. Avoid loose fitting clothing that can get caught in moving parts. Wear footwear that will improve footing on slippery surfaces.
• Handle fuel with care; it is highly flammable.
  • Use an approved fuel container.
  • Never add fuel to a running engine or hot engine.
  • Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors.
  • Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground, away from your vehicle, before filling.
  • When practical, remove gas-powered equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel such equipment on a trailer with a portable container, rather than from a gasoline dispenser nozzle.
  • Keep the nozzle in contact with the rim of the fuel tank or container opening at all times, until refueling is complete. Do not use a nozzle lock-open device.
  • Replace gasoline cap securely and wipe up spilled fuel.
  • If fuel is spilled on clothing, change clothing immediately.
• Use extension cords and receptacles as specified by the manufacturer for all units with electric drive motors or electric starting motors.
• Adjust the auger housing height to clear gravel or crushed rock surface.
• Never attempt to make any adjustments while the engine (motor) is running (except when specifically recommended by the manufacturer).
• Always wear safety glasses or eye shields during operation or while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from the machine.

Personal protective equipment

Always use the correct personal protective equipment when you operate the product. This includes, at minimum, sturdy footwear, eye protection and hearing protection. Personal protective equipment does not erase the risk of injury but may decrease the grade of injury if an accident occurs.

• Always wear safety glasses or eye protection while you operate the product or do maintenance or repairs.
• Always wear appropriate winter garments when you operate the product.
• Always use heavy-duty slip-resistant boots with good ankle support while you operate the product.
• Do not wear loose fitting clothing that can get caught in moving parts.
• Use approved protective gloves, if necessary. For example, when attaching, examining or cleaning the blade.
• Always use approved ear protection while you operate the product. Noise for a long period can cause noise-induced hearing loss.

Safety devices on the product

• Make sure that you regularly do the maintenance to the product.
  • The life of the product increases.
  • The risk of accidents decreases.

Let an approved dealer or an approved service center regularly examine the product to do adjustments or repairs.

• • Do not use a product with damaged protective equipment. If the product is damaged, speak to an approved service center.

Muffler
The muffler keeps the noise levels to a minimum and sends the exhaust fumes away from the operator.
Do not use the product if the muffler is missing or damaged. A damaged muffler increases the noise level and the risk of fire.

The muffler becomes very hot during and after use and when the engine operates at idle speed. Be careful near flammable materials and/or fumes to prevent fire.

Fuel safety

Read the warning instructions that follow before you use the product.

• Do not start the product if there is fuel or engine oil on the product. Remove the unwanted fuel/oil and let the product dry.
• If you spill fuel on your clothing, change clothing immediately.
• Do not get fuel on your body, it can cause injury. If you get fuel on your body, use soap and water to remove the fuel.
• Do not start the product if the engine has a leak. Examine the engine for leaks regularly.
• Be careful with fuel. Fuel is flammable and the fumes are explosive and can cause injuries or death.
• Do not breathe in the fuel fumes, it can cause injury. Make sure that there is a sufficient airflow.
• Do not smoke near the fuel or the engine.
• Do not put warm objects near the fuel or the engine.
• Do not add the fuel when the engine is on.
• Make sure that the engine is cool before you refuel.
• Before you refuel, open the fuel tank cap slowly and release the pressure carefully.
• Do not add fuel to the engine in an indoor area. Not sufficient airflow can cause injury or death because of asphyxiation or carbon monoxide.
• Tighten the fuel tank cap fully. If the fuel tank cap is not tightened, there is a risk of fire.
• Move the product a minimum of 3 m / 10 ft from the position where you filled the tank before a start.
• Do not fill the fuel tank fully. Heat causes the fuel to expand. Keep a space at the top of the fuel tank.

Chemical warning
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Safety instructions for maintenance

Read the warning instructions that follow before you use the product.

• The exhaust fumes from the engine contain carbon monoxide, an odorless, poisonous and very dangerous gas. Do not start the engine indoors or in closed spaces.
• Before you do the maintenance on the product, stop the engine and remove the ignition cable from the spark plug.
• Use protective gloves when you do maintenance on the blades. The blades are very sharp and cuts can easily occur.
• Accessories and changes to the product that are not approved by the manufacturer, can cause serious injury or death. Do not change the product. Always use accessories that are approved by the manufacturer.
• If the maintenance is not done correctly and regularly, the risk of injury and damage to the product increases.
• Only do the maintenance as given in this operator's manual. All other servicing must be done by an approved service agent.
• Let an approved service agent do servicing on the product regularly.
• Replace damaged, worn or broken parts.

Assembly

Read and understand the safety chapter before you assemble the product.

To install the handles

1. Remove the 4 M8x25 flange bolts (A) from the case.
2. Use the 4 M8x25 flange bolts (A), the 4 spring spacers (B) and the 4 flat spacers (C).
3. Install the lower handle (D) into the 2 holes on each side of the case. (Fig. 26)
   
4. Use the 3 M8x50 handle lock bolts (A), the 3 spacers (B), the 3 handle knobs (C), and the 3 locking nuts (D).
5. Install the upper handle with the control panel (E) on the lower handle. (Fig. 27)
   

To assemble the chute deflector

1. Remove the rotator disk (B) and the 6 hexagon flange bolts (D) from the case.
2. Attach the rotator disk (B) and the chute deflector (A) onto the chute base using 3 limits blocks (C).
3. Use 6 hexagon flange bolts (D) and 6 locking nuts (E) to lock the limits blocks (C). (Fig. 28)
   

To assemble the chute rotator

1. Assemble the front end of the chute rotator.
2. Install the plastic bushing (B) to the front end of the chute rotator.
3. Attach the chute rotator with 1 flat spacer (A) and 1 hairpin (C). (Fig. 29)
   
4. Assemble rear end of the chute rotator.
5. Use 1 locking nut M8 (A), 1 plastic locking handleknob (B), 2 curve spacers (C) and 1 screw level (D) to assemble the chute rotator.
6. Use 1 hexagon nut M8 (E) to fix the chute rotator (F) into the holes of the handle. (Fig. 30)
   

To assemble the drive speed control rod

1. Install the long bent end of the drive speed control rod (A) to the control panel, and attach it with 1 connecting rod spring (B), 1 flat spacer (C) and 1 cotter pin (D). (Fig. 31)
   
2. Pull up the shift connecting plate (B) and install the short bent end of the drive speed control rod (A). Attach the drive speed control rod (A) with 1 flat spacer (C) and 1 cotter pin (D). (Fig. 32)
   
3. If necessary, extend the drive speed control rod. Loosen the locking nuts of the turn buckle and spin the turn buckle. Tighten the turn buckle back to its original location for proper speed control. The original location is marked on the threads. (Fig. 33)
   

To assemble the auger and driver cables

1. Remove the 2 cable screw bolts (B) from the cables(D).
2. Attach the 2 cable screw bolts (B) to the holes on the left and the right handles (A). (Fig. 34)
   
3. Attach the cables (D) to the cable screw bolts (B).
4. Connect and lock the left and the right cable thread insert (D) and the cable screw bolt (B) until the top of the brass lock nut (C) is aligned with the mark on the threads (E).
5. Lock the cable with the brass lock nut (C).

Operation

Before you operate the product, carefully read and understand the safety chapter and the operation instructions.

Before you start the product

• Keep persons and animals away from the work area.
• Do daily maintenance. See Maintenance schedule.
• Make sure the ignition lead fits correctly on the spark plug.
• Add oil or gasoline, if necessary. See To fill the engine with oil.

To fill the engine with oil

Do not rotate the dipstick when you check the oil. Do not fill above the mark.

1. Remove the oil cap and clean the dipstick. See Product overview for the location of the dipstick.
2. Add oil to the top mark on the dipstick. Use the dipstick to do a check of the oil level at regular intervals.
3. Put the oil cap back.

To fill fuel

If available, use low-emission/alkylate gasoline. If low-emission/alkylate gasoline is not available, use good quality unleaded gasoline. Use gasoline with an octane number of 90 RON out of North America (87 (R+M)/2 in North America) or higher, and with a maximum of 10% ethanol (E10).

Do not use gasoline with an octane number less than 90 RON out of North America (87 (R+M)/2 in North America). This can cause damage to the product.

1. Open the fuel tank cap slowly to release the pressure.
2. Fill slowly with a fuel can. If you spill fuel, remove it with a cloth and let remaining fuel dry off.
3. Clean the area around the fuel tank cap.
4. Tighten the fuel tank cap fully. If the fuel tank cap isnot tightened, there is a risk of fire.
5. Move the product a minimum of 3 m (10 ft) from the position where you filled the tank, before a start.

To adjust the chute deflector

The direction in which snow is to be thrown is controlled by the chute rotator control which is installed on the left side handle.

1. Rotate the chute rotator control to set the rotatingdirection of throwing snow.
2. Rotate the chute rotator control clockwise to throwsnow rightwards.
3. Rotate the chute rotator control counter-clockwise tothrow snow leftwards. (Fig. 35)
   
4. Move the angle deflector up or down to adjust the throwing distance of the snow. (Fig. 36)
   

To start the engine

1. Release the drive engagement. Put the drive speed control lever in the first position.
2. Turn the fuel switch to the ON position. (Fig. 37)
   
3. Turn the choke to the CLOSE position. (Fig. 38)
   
4. Push in the on/off key to the RUN position. (Fig. 39)
   
5. Push the primer 1-3 times to start the booster pump. Use the booster pump for cold start in low temperatures. (Fig. 40)
   
6. Pull the recoil start handle. (Fig. 41)
   

Do not release the recoil start handle quickly. Move it back to the start position slowly.

Note: If the recoil start handle has frozen, slowly pull out as much rope out of the starter as possible and release the recoil start handle. If the engine does not start, repeat the procedure or use the electrical starter.

7. Run the engine 30-40 seconds at idling speed before you start to throw snow.
8. When the engine is warm, slowly move the choke to the OPEN position. (Fig. 42)
   

To start the engine using electric starter

The product has a 120 Volt A.C. electric starter. Do not use the electric starter if your house is not a 120 Volt A.C. correctly grounded system. Serious personal injury or damage to the product could occur. The electric starter has a three-wire power plug, and is designed to use 120 Volt A.C. household current. Ensure that your house is a 120 Volt A.C. correctly grounded system. If you are uncertain, consult a licensed electrician.

Note: Use an extension cord that is recommended for outdoor use, that has wire size not less than 16 AWG (1.5 mm²) and is not longer than 50 feet (15 m).

1. Release the drive engagement. Put the drive speed control lever in the first position.
2. Turn the fuel switch to the ON position. (Fig. 37)
3. Turn the choke to the CLOSE position. (Fig. 38)
4. Push in the on/off key to the RUN position. (Fig. 39)
5. Push the primer 1-3 times to start the booster pump. Use the booster pump for cold start in low temperatures. (Fig. 40)
6. Connect the product to power. (Fig. 43)
   
7. Press and hold the start button on the control box for 5 seconds. (Fig. 44)
   
8. If the engine does not start, wait 5 seconds, thenpush the start button again.

Do not try to start the engine more than 10 times. After 10 times, wait 40 minutes before you try again.

9. Disconnect the power cord from the product when the engine is started.
10. Run the engine 30-40 seconds at idling speed before you start to throw snow.
11. When the engine is warm, slowly move the choke to the OPEN position. (Fig. 42)

To operate the product

1. Squeeze the auger engagement to the handle to engage the auger and throw snow. (Fig. 45)
   
2. Move the drive speed control lever to the left tooperate the product forward. Move the drive speed control lever to the right to operate the product rearward. (Fig. 46)
   
3. Operate the drive engagement with the right handle.
4. Squeeze the drive engagement to the handle to engage the drive wheels. The product moves forward or reverse depending on the location of the drive speed control lever. (Fig. 47)
   

To stop the product

Note: To turn the engine off in an emergency, pull out the on/off key.

1. Release the drive engagement to stop the drive wheels.
2. Release the auger engagement to disengage the auger and stop throwing snow. (Fig. 48)
   
3. Turn the fuel switch to the OFF position. (Fig. 49)
   
4. Pull out the on/off key. (Fig. 50)
   

To get a good result

• Always run the engine at full throttle or near full throttle.
• Always adapt the speed of the product to the snow situation and adjust the speed with the drive speed control lever. Make sure that the product throws snow evenly.
• It is easier and more efficient to remove snow immediately after it falls.
• Always throw snow downwind whenever possible.
• On flat surfaces, like asphalt roads, raise the skid plates up to 5-6 mm (0.2-0.25 in) off the ground.
• The scraper bar is reversible. When it becomes worn almost to the edge of the housing, reverse it. Replace the scraper bar if it is damaged, or if both sides are worn.
• Do not dispatch the chute deflector if it is clogged.
• If the product does not move forward due to unforeseen circumstances, release the drive engagement immediately or move the ON/OFF key to the "OFF" position.

Maintenance

Maintenance	Daily	20 hours	50 hours	100 hours
Make sure that nuts and screws are tightened	X
Do a check of the engine oil level	X
Replace oil 1		X	X	X
Make sure there are no fuel or oil leaks	X
Remove clogging, foreign objects in auger	X
Inspect the tire pressure 2			X
Inspect and change the spark plug 3				X

¹ Replace the oil after the first 20 h, 50 h, 100 h and then every 100 h.
² See Technical data for correct tire pressure.
³ Check and clean spark plug before use each year.

Note: It is not necessary to add grease or to do other maintenance to the gearbox.

To do a general inspection

• Make sure that all nuts and screws on the product are tightened correctly.

To do a check of the oil level

A too low oil level can do damage to the engine. Do a check of the oil level before you start the product.

1. Put the product on level ground.
2. Remove the oil tank cap with the attached dipstick.
3. Clean the oil from the dipstick.
4. Put the dipstick fully into the oil tank to give a correct picture of the oil level.
5. Remove the dipstick.
6. Examine the oil level on the dipstick.
7. If the oil level is low, fill with engine oil and do a check of the oil level again.

To replace the engine oil

1. Run the engine a few minutes to make the oil warm. Warm oil flows better and carries more contaminants.

The engine oil is hot. Avoid skin contact with the used engine oil.

2. Put the product on level ground.
3. Run the engine until all fuel has been depleted.
4. Remove the ignition key.
5. Put a container under the oil drain plug.
6. Remove the oil drain plug, tip the product backwards and drain the used oil in the container. (Fig. 51)
   
7. Put the product back to the operating position.
8. Fit the oil drain plug and tighten it securely by hand.
9. Fill the engine with oil, see To fill the engine with oil.

To examine the spark plug

Always use the recommended spark plug type. Incorrect spark plug type can cause damage to the product.

• Examine the spark plug if the engine is low on power, is not easy to start or does not operate correctly at idle speed.
• To decrease the risk of unwanted material on the spark plug electrodes, obey these instructions:
  1. Make sure that the idle speed is correctly adjusted.
  2. Make sure that the fuel type is correct.
  3. Make sure that the air filter is clean.
• If the spark plug is dirty, clean it and make sure that the electrode gap is correct, refer to Technical data. (Fig. 52)
  
• Replace the spark plug if it is necessary.

To inspect the augers and the scraper bar

1. Before each use, inspect the augers and the scraper bar for wear.
2. If the edge of the scraper bar is worn, reverse the scraper bar. If the scraper bar has damages or is worn on both edges, replace it.
3. If the edges of the augers are worn, contact an authorized service center to replace them.

To adjust the skid plates

The skid plates prevent damage to the bottom of the snow thrower. Adjust the skid plates (A) when the locknut (B) is loose, or the skid plate is not at the correct distance from the ground. No adjustment is necessary for standard installation.

1. Loosen the locknut (B) with a 13 mm (½ in.) open wrench.
2. Move the skid plates (A) up or down.
   1. On flat surfaces set the distance between the scraper bar and the ground to 5-6 mm (0.2-0.25 in).
   2. On rough surfaces set the skid plates (A) in a position where the scraper bar is above the top of the ground.

Make sure that gravel and stones do not go into the product. Objects that eject at high speed can cause injury.

3. Tighten the locknut (B). (Fig. 53)
   

To replace the shear pin

The shear pin protects the product from damage. It breaks if a foreign object enters the moving parts.

1. If the shear pin breaks, stop the engine.
2. Attach a new shear pin (A) and a new clamp spring (B). (Fig. 54)
   

To examine the tires

• Keep the tires free of fuel, oil and chemicals to prevent damage to the rubber.
• Keep the tires away from stumps, stones, ruts, sharp objects and other objects which can cause damage to the tires.
• Keep the tire pressure correct, see Technical data.

To clear a clogged discharge chute deflector

Do not unclog the discharge chute deflector before the following operations are made.

1. Release the auger engagement and the drive engagement at the same time.
2. Wait 10 seconds to make sure that the augers have stopped.
3. Turn off the product.
4. Use the tool for cleaning (at least 37 cm (15 in.) long, included in some models) to remove the clog.

Do not put your hands into the discharge chute deflector or inside the auger bucket.

To clean the product

• Clean plastic parts with a clean and dry cloth.
• Do not use a high pressure washer to clean the product.
• Do not flush water directly on the motor.
• Use a brush to remove leaves, grass and dirt.

Troubleshooting

Problem	Possible cause	Solution
The product does not start	The safety ignition key is not inserted.	Insert the safety ignition key.
	The product is out of fuel.	Fill the fuel tank with fresh, clean gasoline.
	The on/off key is OFF.	Move the on/off key to ON position.
	The choke is in OFF (CLOSE) position.	Move the choke to ON (FULL, OPEN) position.
	The primer is not depressed.	Press the primer.
	The engine is flooded.	Wait a few minutes before restarting, DO NOT prime. Restart the engine while full throttle and the choke in OFF (CLOSE) position.
	The spark plug wire is not connected.	Connect the wire to the spark plug.
	The spark plug is bad.	Replace the spark plug.
	There is water in the fuel or the fuel is too old.	Empty the fuel tank and carburetor. Fill the fuel tank with fresh, clean gasoline.
	There is vapor locked in the fuel line.	Make sure that all the fuel line is below the outlet of the fuel tank. The fuel line should run continuously down from fuel tank to carburetor.
	Other causes.	Inspect the starting procedures carefully in this manual.
	The fuel switch (if so equipped) is in CLOSE (OFF) position.	Turn the fuel switch to OPEN (ON) position.
	The throttle is in STOP position.	Move the throttle to FAST position.
Decreased power	The spark plug wire is not connected.	Connect the wire to the spark plug.
	The product throws too much snow.	Decrease the speed and the width of the swath.
	The fuel tank cap is covered with ice or snow.	Remove the ice and the snow on and around the fuel tank cap.
	The muffler is dirty or clogged.	Clean or replace the muffler.
	Improper cable length.	Adjust the cable.
	The muffler is blocked.	Make sure that the engine is cool. Clear the blockage.
	The air intake of the carburetor is blocked.	Make sure that the engine is cool. Clear the blockage.
The engine idles or runs roughly	The choke is in ON (FULL, OPEN) position.	Move the choke to OFF (CLOSE) position.
	The fuel line is blocked.	Clean the fuel line.
	There is water in the fuel or the fuel is too old.	Empty the fuel tank and carburetor. Fill the fuel tank with fresh, clean gasoline.
	The carburetor needs to be replaced.	Contact an authorized service center.
	The belt is stretched.	Replace the auger v-belt.
Excessive vibration / Handle movement	Some parts are loose. The augers are damaged.	Tighten all fasteners. Replace the damaged parts. If vibration remains, contact an authorized service center.
	The handles are not positioned correctly.	Make sure that the handles are locked into position.
	The adjustment lever nuts are loose.	Tighten the nuts until the handle feels safe.
The recoil start handle is hard to pull	The recoil start handle is frozen.	Slowly pull out as much rope out of the starter as possible and release the recoil start handle. If the engine does not start, repeat the procedure or use the electrical starter.
	The rope is interfering with components.	The recoil rope should not touch any wires or hoses.
Loss of traction drive/slowing of drive speed Loss of snow discharge or slowing of snow discharge	The belt slips.	Adjust the cable. Adjust the belt.
	The belt is worn.	Check / replace the belt.
	The belt is off the pulley.	Check / reinstall the belt.
	The chute deflector is clogged.	Clean the chute deflector.
	Foreign objects clog the augers.	Remove the debris or the foreign object from the augers.
	The shear pin is broken.	Replace the broken shear pin.
	Excessive snow and ice build up in between track components.	Remove snow and ice build up from in between track components.
	The friction drive wheel is worn.	Contact an authorized service center.
Failure of auger rotation after the grip is released	The drive belt is not aligned.	Adjust the drive belt.
	The discharge deflector is not aligned.	Adjust the discharge deflector.
The lights are not on (if so equipped)	The engine is not running.	Start the engine.
	The wire connection is loose.	Check the wire connections at the engine and the lights.
	The LED is burnt out.	Replace the LED light module. Individual LEDs can not be replaced.
The chute rotator is difficult to move	There is debris in the chute rotator mechanism.	Clean the internal parts of the chute rotator mechanism.
	The cables are kinked or damaged.	Make sure that the cables are not kinked. Replace the cables that are damaged.
The product turns to one side	The tire pressure is not equal.	Adjust the tire pressure and fill the tire.
	The product drives with only one wheel.	Inspect the tire lock pin.
	Uneven sled adjustment.	Adjust the skid plates and the sledge.
	Uneven skid plates adjustment.	Adjust the skid plates and the sledge.

Transportation and storage

• For storage and transportation of the product and fuel, make sure that there are no leaks or fumes. Sparks or open flames, for example from electrical devices or boilers, can start a fire.
• Always use approved containers for storage and transportation of fuel.
• Empty the fuel tank before you put the product in storage for a long period of time.
• If the carburetor fuel bowl has a drain plug, empty the fuel from the carburetor before you put the product in storage for a long period of time.
• Safely attach the product during transportation to prevent damage and accidents.
• Keep the product in a locked area to prevent access for children or persons that are not approved.
• Keep the product in a dry and frost free area.

Technical data

	ST 124
Dimensions
Weight, with empty tanks, kg	76
Max. operating tire pressure, PSI	20
Intake height, cm	53.3
Working width, cm	61
Engine
Brand	Husqvarna
Nominal engine output, kW	4.3
Displacement, cc	212
Fuel type	Unleaded regular (maximum 10% ethanol)
Fuel capacity, gal / l	0.58 / 2.2
Oil type (API SJ-SN)	SAE 5W30 (below 0°C (32°F))
Oil capacity fl. oz. / l	20 / 0.6
Electrical system
Spark plug	F7RTC
Spark plug electrode gap (in. / mm)	0.027–0.031 / 0.7–0.8
Noise emissions 4
Sound power level, measured dB(A)	100
Sound power level, guaranteed LWA dB(A)	102
Sound levels 5
Sound pressure level at the operators ear, measured LPA dB(A)	86
Vibration levels, ahveq 6
Vibration level on the handle, left / right	4.15 / 4.08

⁴ Noise emissions in the environment measured as sound power (L_WA) in conformity with EC directives 2000/14/EC and 2005/88/EC. Reported data for noise emissions has a typical statistical dispersion (standard deviation) of 1.5 dB(A). Uncertainty=1.5 dB(A)
⁵ Noise pressure level according to EN ISO 11201. Reported data for noise pressure level has a typical statistical dispersion (standard deviation) of 1.5 dB(A). Uncertainty=1.5 dB(A)
⁶ Vibration level according to ISO 8437-4 Annex B. Uncertainty=1.5 m/s²

Documents / Resources

References

• http://www.p65warnings.ca.gov

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