Husqvarna ST 224, 227P, 230P, 224P - Snow Blower Manual

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 defective. A defective muffler increases the noise level and the risk of fire. Examine the muffler regularly to make sure that it is attached correctly and not damaged.

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.

Proposition 65

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

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

To remove the product from the carton

1. Remove loose parts included with the product. Cut the four corners of the carton and put the end panels down flat.
2. Remove the two screws that attach the auger housing to the pallet. Remove the steel brackets from the skid plates if they have it.
3. Remove all package materials.
4. Remove the product from the carton and make sure no loose parts are left in the carton.

Loose parts

	Knob (3)
	Discharge chute (1)
	ON/OFF key (s)
	Carriage bolts 5/16-18 x 2 ¼" (2)
	Handle knobs (2)
	Locknut 3/8 (1)
	Cable guide (1)
	Shear pins ¼-20 x 1-¾ (6)
	Locknuts ¼-20 (6)
	Locknut 5/16-18 (1)
	Locknut ¼-20 (1)
	Nylon washer (1)
	Carriage bolt 5/16-18 x 5/8 (1)
	Spring (1)
	Shoulder bolt ¼-20 (1)

To install the handle

1. Raise the upper handle to the operating position.
   
   

2. Adjust the handle position to one of the mounting holes (B) and tighten the handle knobs (C) with the carriage bolts (D).
   
   
3. Install more carriage bolts (D) and handle knobs (C) to secure the upper handle (A) to the lower handle (E).
   

To install the chute deflector and chute rotator head

1. Put the chute deflector assembly on the top of the chute base with the discharge opening in the direction of the front of the product.
2. Put the chute rotator head (A) on the chute bracket (B). Rotate the chute assembly to align the pins under the chute rotator head with the holes in the chute bracket if it is necessary.
3. Put the chute rotator head on the pin (C) and the threaded stud (D) on the mounting bracket (E).
4. Attach a locknut (G) on the threaded stud and tighten.

5. Put the cables through the cable guide (F) and the double clip (I) to attach the rotator cable (H) to the lower handle.
   

To install the chute deflector remote control

1. Attach the remote cable bracket (A) to the discharge chute with a carriage bolt (B) and a 5/16-18 locknut (D). Tighten the bolt.
2. Install the remote cable eyelet (E) to the chute deflector (F) with a shoulder bolt (G), a nylon washer (C), and tighten with a ¼-20 locknut (K). The cable eyelet will be loose on the shoulder bolt.
3. Attach the spring (L) between the hex nut (M) on the chute rotator head and the hole on the chute deflector.
   
   

4. Attach the lever control knobs (N) by pressing them down on the control levers (O).
   

Operation

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 Technical data.

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 or leaded gasoline. Use gasoline with an octane number of 90 RON out of North America (87 AKI 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 AKI 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 is not 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 discharge chute and the chute deflector

1. To adjust the discharge chute position, move the discharge chute control lever (A) back and to the left or right direction.
2. To adjust the snow throwing distance of the chute deflector, move the deflector remote control lever (B) down to decrease the distance and up to increase the distance.

To start the engine, manual start

1. Insert the ON/OFF key (A) into the ignition slot until it clicks. Do not turn the key.

2. Turn the fuel ON/OFF switch (F) to the ON position.
3. Put the throttle control (B) to the FAST position.
4. Put the ON/OFF switch (C) to the ON position (if equipped).
   1. If the engine is cold, rotate the choke (D) to the FULL position and push the primer (E) three times.
      
      Do not over prime the engine. It can prevent the engine from starting. If the engine is over primed, wait a few minutes before attempting to start and do not push the primer.
5. Pull the starter rope handle (G).
   
   Do not release the grip quickly. Move it back to the start position slowly.
   Note: If the rope starter has frozen, slowly pull out as much rope out of the starter as possible and release the starter rope handle. If the engine does not start, repeat the procedure or use the electric starter.
6. If the choke was used to start the engine, slowly move the choke (D) to the OFF position.
7. Run the engine 2-3 minutes at idling speed before you start to throw snow.
8. If the engine does not run as it should, turn it off.

1. Insert the ON/OFF key (A) into the ignition slot until it clicks. Do not turn the key.
2. Turn the fuel ON/OFF switch (F) to the ON position.
3. Put the throttle control (B) to the FAST position.
4. Put the ON/OFF switch (C) to the ON position (if equipped).
   1. If the engine is cold, turn the choke (D) to the FULL position.
5. Push the primer (E) three times.
   
   Do not over prime the engine. It can prevent the engine from starting. If the engine is over primed, wait a few minutes before trying to start and do not push the primer.
6. Connect the extension cord to the connector on the engine (G).
7. Connect the other end of the extension cord into a three-hole grounded 120 V A.C. receptacle.
8. Push the electric start button (H) until the engine starts.
   
   Do not crank the engine more than five continuous seconds between each time you try to start. Wait 5 to 10 seconds between each try.
9. If the choke was used to start the engine, release the electric start button and slowly move the choke (D) to the OFF position.

10. Disconnect the extension cord from the receptacle first and then from the engine.
11. Run the engine 2-3 minutes at idling speed before you start to throw snow.

To operate the product

Do not operate without snow or water to lubricate the auger blades. Incorrect use can cause high temperatures in the auger blades, especially if the product is new. This can cause damage to the auger blades and scraper bar.

Do not partially engage drive or auger levers for an extended period of time; this can lead to premature wear or burning of the belts.
Note: When both the drive engagement and auger engagement are engaged, the drive engagement will lock the auger engagement in position. Use the right hand to control the snow discharge chute.
Note: Do not change the speed when the drive lever is engaged. This can cause damage to the transmission.

1. To engage the auger blades, push the auger engagement (A) to the handle to engage the auger and throw snow.
   
   
2. Raise the drive speed control lever (B) from the middle position to make the product move forward when the drive engagement (C) is engaged. Do not change the speed when the drive lever is engaged. This can cause damage to the transmission.
3. Lower the drive speed control lever from the middle position to make the product move rearward when the drive engagement is engaged.

4. To make the product move in the selected direction, hold the drive engagement (C) against the handle.
   
   
5. If the product has power steering, hold the left steering trigger (D) to turn left. Hold the right steering trigger to turn right.
   

To stop the product

1. Move the ON/OFF switch to the OFF position (if equipped).
2. Remove the ON/OFF key.

To use the throttle control

• Turn the throttle control (A) to change the amount of fuel used. Always operate the engine at full throttle.
  

To prevent freeze-up after use
Note: Controls and moving parts can be blocked by ice. Do not apply much force to the controls. If you cannot operate a control or a part, start the engine and let it operate for some minutes.

1. Start the engine and let it operate for some minutes. Stop the engine and wait for all moving parts to stop.
2. Remove snow and loose ice from the product.
3. Remove snow and loose ice from the base of the chute.
4. Turn the chute deflector to the left direction and to the right direction to remove ice and water.
5. Remove the key or flip switch to the "OFF" position (if equipped).
6. If the product does not have an electric starter, pull the starter rope handle several times to remove ice and water.
7. If the product has an electric starter, connect the product to power and push the start button once to remove ice and water.

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 pull out the ON/OFF key to OFF position.

Maintenance

Maintenance schedule

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

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

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.

To do a general inspection

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

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 includes more contaminants.
   
   The engine oil is hot. Avoid skin contact with the used engine oil.
2. Put the product on level ground.
3. Remove the ON/OFF key.
4. Put a container below the oil drain plug.
5. Remove the oil drain plug, tip the product and drain the used oil in the container.
6. Put the product back to the operating position.
7. Install the oil drain plug and tighten it by hand.

8. Fill the engine with oil, see To fill the engine with oil.

To lubricate the product

• Lubricate the pivot points (A) with oil.
• Lubricate the engine (B) with oil.
• Apply a small amount of lithium grease to the interlock bosses (C) at the beginning of each season or every 25 hours of use.

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 defective. A defective muffler increases the noise level and the risk of fire. Examine the muffler regularly to make sure that it is attached correctly and not damaged.

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.

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 mixture 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, see Technical data.
  
  
• 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 replace the auger shear pins
The auger shear pins protect the product from damage. The auger shear pins break if an object comes into the moving parts.

Use only original equipment shear pins supplied with the product.

1. If an auger shear pin breaks, stop the engine and wait for the moving parts to stop.
2. Remove the ON/OFF key and disconnect the spark plug cable.
3. Align the hole in the auger hub (B) with the hole in the auger shaft (C) and install a new ¼ - 20 x 2 shear pin (A)
4. Install a ¼-20 locknut (D) and tighten.

5. Put the ON/OFF key in the ignition and connect the spark plug cable to the spark plug.

To replace the impeller shear pins
The impeller shear pins protect the product from damage. The impeller shear pins break if an object comes into the moving parts.

Use only original equipment shear pins supplied with the product.

1. If an impeller shear pin breaks, stop the engine and wait for the moving parts to stop.
2. Remove the ON/OFF key and disconnect the spark plug cable.
3. Align the hole in the impeller hub (A) with the holes in the impeller shaft (B) and install a new ¼-20 shear pin (C).
4. Install a ¼-20 locknut (D) on the shear pin and tighten.

5. Put the ON/OFF key in the ignition and connect the spark plug cable to the spark plug.

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 chute deflector
Do not unclog the 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. Stop the product.
4. Use the clean-out tool (at least 15" long, included in some models) to remove the clog.

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

To replace the scraper bar

1. Put the scraper bar (A) in a reversed position when it is worn to the edge of the housing.
   
   

2. Replace the scraper bar if it is worn on both sides or if it is damaged.

Drive belts

The v-belts on your product are of special construction and should be replaced by original equipment manufacturer (OEM) belts available from your nearest service center. Using other than OEM belts can cause personal injury or damage to the product.

The belt replacement requires separation of the product. While separating the auger housing from the frame, it is important that an assistant stands in the operating position and holds the product handles. Serious personal injury and/or damage to the product could occur if the product falls during the belt replacement process.
Note: The auger and traction drive belts are not adjustable. Replace the belts if they are damaged or begin to slip from wear. It is recommended to have the belts replaced by a qualified service center.
Note: It is recommended to replace the drive belt and auger belt at the same time.

To prepare for replacement of the belts

1. Remove the fuel from the fuel tank.
2. Loosen the lock nut (A) that secures the chute rotator head (B) to the mounting bracket (C) to remove the discharge chute.
   
   

3. Loosen the two screws (A) that secure the belt cover (B) to the frame (C) and remove the belt cover.
   

2. Install the discharge chute.

3. Adjust until the cable for the discharge chute deflector (C) has a tight fit. Tighten the jam nuts.

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

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. Discard the fuel at an applicable disposal location
• 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.