SnowJoe 24V-X4-SB21 - Cordless Snow Blower Manual

*Generates 96V max with four 24V lithium-ion batteries. Initial no-load voltage, per fully charged battery, peaks at 24V. Nominal voltage under typical load is 21.6V.

Safety Instructions

All Operators Must Read These Instructions Before Use

Read all instructions before using this snow blower. Basic safety precautions should always be followed to reduce the risk of fire, electric shock and personal injury.

General Safety

This machine is not intended for use by children or by unassisted, unsupervised persons whose physical, sensory or mental capabilities prevent them from using it safely. Children should be supervised to ensure that they do not play with the machine.

Before using your snow blower, please check it carefully for any defects. If you find any, do not use it. Instead, contact your authorized Snow Joe^® + Sun Joe^® dealer or call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563).

When using the snow blower, basic safety precautions should always be followed to reduce the risk of personal injury. These include:

• Stay alert – Watch what you are doing. Use common sense. Do not operate the snow blower when you are tired or under the influence of drugs, alcohol, or other medication.
• Dress properly – Do not wear loose clothing or jewelry as such articles can become caught in moving parts. Tie up long hair. Protective gloves and non‑slip footwear are recommended when working outdoors.
• Usage – This snow blower is intended for use on paved surfaces. Do not use on gravel, stone or other unpaved surfaces. Do not use this snow blower for any job except for what it is intended for.
• Personal protective equipment – Always wear safety glasses while operating the snow blower.
• Do not force the snow blower – Use the snow blower at the rate for which it was designed to ensure optimal performance and safe operation.
• Do not overreach – Keep proper footing and balance at all times. Watch for uneven surfaces and do not overreach. In case you fall or collide with the snow blower, inspect the unit for any damages or cracks. When stepping backwards, be careful to avoid obstacles behind you.
• Moving parts – Keep your face, hair, clothing, hands, and feet away from moving parts. All guards and safety attachments must be installed properly before using the machine. Shut off and disconnect the battery packs before touching any parts other than the handles and switch.

If the snow blower strikes any object, follow these steps:

1. Stop the snow blower and remove the battery packs.
2. Inspect for damage.
3. Repair any damage before restarting and operating the snow blower.

Always disengage the switch bar lever, and disconnect the battery packs; wait for all movement to stop before making any adjustments, inspecting, servicing, changing accessories or cleaning the snow blower. Any such operation should be performed after rotating parts inside the snow blower stop completely. Such preventive safety measures reduce the risk of starting the machine accidentally.

When replacing any parts, you must strictly observe the instructions and procedures described in this user manual. Special care should be paid to any rubber parts, since these parts may increase the engine load and decrease its mechanical power if damaged.

If you notice that the snow blower is not running properly or hear abnormal sounds from the engine when it is in use, immediately stop the machine, disconnect the battery packs, and contact Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563).

Work Area Safety

• Work area – Always inspect the area where the machine is to be used and operate it in a well‑lit environment.
• Keep bystanders away – All bystanders and pets should be kept a safe distance away from the work area.

Maintenance + Storage

Do not use detergents, acids, alkaline solutions, bleaches or solvents such as acetone to clean your snow blower. These substances may damage the plastic parts of the machine.

• Store indoors – When not in use, the machine should be stored indoors in a dry place inaccessible by children.
• Inspect before use – Visually inspect for any loose fasteners or worn, missing or damaged parts. Make sure all fasteners are tight to assure the machine is in safe working condition.

Battery & Charger Safety Instructions

We pay a great deal of attention to the design of every battery pack to ensure that we supply you with batteries that are safe, durable and have a high energy density. The battery cells have a wide range of safety devices. Each individual cell is initially formatted and its electrical characteristic curves are recorded. This data is then used exclusively to assemble the best possible battery packs.

Despite all the safety precautions, caution must always be exercised when handling batteries. The following points must be obeyed at all times to ensure safe use. Safe use can only be guaranteed if undamaged cells are used. Incorrect handling of the battery packs can cause cell damage.

Analyses confirm that incorrect use and poor care of high‑performance batteries are the main factors responsible for product damage and/or personal injury.

Use only approved replacement batteries; other batteries may damage the machine and cause it to malfunction, which can lead to serious personal injury.

Do not use a battery pack or machine that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.

Have your battery packs serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the battery packs is maintained.

To reduce the risk of injury, use only official 24V iON+ designated chargers with the 24V iON+ battery packs. The use of other batteries or chargers poses a risk of fire, personal injury and damage. Do not modify or attempt to repair the machine or the battery packs except as indicated in the instructions for use and care. Do not wire a battery pack to a power supply or car cigarette lighter, as such misuse will permanently disable or damage the battery packs.

To reduce the risk of electric shock, always unplug the charger before performing any cleaning or maintenance. Do not allow water to flow into the charger. Use a Ground Fault Circuit Interrupter (GFCI) to reduce shock hazards.

• Avoid dangerous environments – Do not charge the battery packs in rain, snow or in damp or wet locations. Do not use the battery packs or charger in the presence of explosive atmospheres (gaseous fumes, dust or flammable materials) because sparks may be generated when inserting or removing the battery packs, which could lead to a fire.
• Charge in a well-ventilated area – Do not block the charger vents. Keep them clear to allow for proper ventilation. Do not allow smoking or open flames near a charging battery pack. Vented gases may explode.
  NOTE: The safe temperature range for the batteries are 41°F (5°C) to 105°F (40.5°C). Do not charge the batteries outside in freezing weather; charge it at room temperature.
• Maintain charger cord – When unplugging the charger, pull the plug, not the cord, from the receptacle to reduce the risk of damage to the electrical plug and cord. Never carry the charger by its cord or yank it by the cord to disconnect it from the receptacle. Keep the cord away from heat, oil and sharp edges. Make sure the cord will not be stepped on, tripped over or subjected to damage or stress when the charger is in use. Do not use the charger with a damaged cord or plug. Replace a damaged charger immediately.
• Do not use an extension cord unless it is absolutely necessary – Using the wrong, damaged or improperly wired extension cord poses a risk of fire and electric shock. If an extension cord must be used, plug the charger into a properly wired 16 gauge or larger extension cord with the female plug matching the male plug on the charger. Make sure that the extension cord is in good electrical condition.
• Do not expose the tool or battery packs to fire – Exposure to fire or temperatures above 265°F (130°C) may cause the battery packs to explode, causing personal injury or damage. Toxic fumes and materials are created when battery packs are ignited.
• Use only recommended attachments – Use of an unapproved attachment may result in risk of fire, electric shock or personal injury.
• Do not crush, drop or damage battery packs – Do not use the battery packs or charger if they have sustained a sharp blow, been dropped, run over or have been damaged in any way (i.e. pierced with a nail, hit with a hammer, stepped on, etc.).
• Do not disassemble – Incorrect reassembly may pose a serious risk of electric shock, fire or exposure to toxic battery chemicals. If the batteries or charger is damaged, contact an authorized Snow Joe^® + Sun Joe^® dealer or call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563) for assistance.
• Battery chemicals cause serious burns – Never let a damaged battery pack contact the skin, eyes or mouth. If damaged, battery chemicals will react violently with air. Use rubber or neoprene gloves to safely dispose of the battery. If skin is exposed to battery chemicals, wash the affected area with soap and water. If eyes are exposed to battery chemicals, immediately flush with water for 20 minutes and seek medical attention. Remove and dispose of contaminated clothing.
• Risk of short circuit – A battery pack will short circuit if a metal object makes a connection between the positive and negative contacts on the battery pack. Do not place a battery pack near anything that may cause a short circuit, such as paperclips, coins, keys, screws, nails and other metallic objects. A short‑circuited battery pack poses a risk of fire and severe personal injury.
• Store your battery packs and charger in a cool, dry place – Ideally, store the battery packs at 59°F (15°C) and charged to at least 40%. Do not store the battery packs or charger where temperatures may exceed 105ºF (40.5ºC), such as in direct sunlight or inside a vehicle, or where temperatures may drop below 41°F (5°C).
  NOTE: Prevent the battery packs from freezing. Battery packs that were stored below 32°F (0°C) for more than 60 minutes must be discarded.
• Charge before use – The battery packs supplied with your tool is only partially charged. The battery packs have to be fully charged before using the snow blower for the first time.
• Battery Aging – Lithium‑ion batteries are subject to a natural aging process. A battery pack must be replaced at the latest when its capacity falls to just 80% of its capacity when new. Weakened cells in an aged battery pack are no longer capable of meeting the high power requirements needed for the proper operation of your tool, and therefore pose a safety risk.
• Do not exhaustively discharge the battery packs – A complete discharge will damage the battery cells. The most common cause of exhaustive discharge is lengthy storage. Stop working as soon as the performance of a battery falls noticeably or the electronic protection system triggers. For optimum battery performance, charge the battery packs frequently. Place the battery packs in storage only after it has been fully charged.
• Do not overload the battery packs – Protect the tool and batteries from overloading. Overloads will quickly result in overheating and cell damage inside the battery housing even if it is not apparent externally. For safety reasons, the integrated protective cutoff will activate to switch off the equipment. After regular use, allow the battery packs to cool to room temperature before recharging them.
  
  Do not attempt to turn on the tool if the protective cutoff has been activated. This may damage the battery packs.
• Outlet voltage – Please check the data marked on the rating label of the battery charger. Be sure that the voltage of the power supply matches that marked on the rating label. Never connect it to a different mains voltage. Never modify the plug in any way. Do not use any adapter plugs with grounded tools.
• Charger use – Do not use the supplied battery charger to charge other types of battery packs or tools.
• Do not overcharge battery packs – Unplug the charger when not in use. Frequently overcharging the battery packs will result in cell damage. Do not leave batteries charging for days on end.
• Battery pack abnormalities – Do not use batteries that have suffered swelling or deformation or those that exhibit other atypical symptoms (gassing, hissing, cracking, etc.).
• Electrostatic discharge – When handling batteries, be wary of electrostatic charge. Electrostatic discharges can damage the electronic protection system and the battery cells. To avoid electrostatic discharges, never touch the battery terminals.

Safety Symbols

The following table depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the tool before attempting to assemble and operate.

Symbols	Descriptions
	READ THE OPERATOR'S MANUAL – Read, understand, and follow all instructions in the user manual before attempting to assemble and operate.
	WEAR EYE AND HEARING PROTECTION – For protection against injury, wear ear defenders and safety goggles.
	Wear protective gloves and nonslip footwear when using the tool and handling debris.
	Cutting/dismemberment hazard – Keep hands away from the rotating auger.
	Keep hands, feet and clothing away from the rotating auger to avoid injury.
	The rotating part will continuously run for several seconds after you turn off the machine.
	Only use battery charger indoors.
	SAFETY ALERT – Indicates a precaution, a warning, or a danger.
	Do not expose the tool to rain or wet conditions. Keep dry.
	Beware of stones and other foreign objects that could be thrown from the machine.
	Cutting/dismemberment hazard – Keep feet away from the rotating auger.
	Do not use hands to unclog the chute.
	Keep bystanders a minimum distance of 50 ft (15 m) away from the work area.

Know Your 21" Snow Blower

Read the owner's manual and safety instructions carefully before operating the snow blower. Compare the illustration below to the product in order to become familiar with the location of the various controls and adjustments. Save this manual for future reference.

1. Soft grip
2. Switch bar level
3. Chute rotate buttons (left and right)
4. LED light button
5. Safety button
6. Handle frame
7. Chute deflector trigger
8. Chute deflector handle
9. Chute deflector
10. Discharge chute
11. LED lights (2)
12. Auger blades
13. Scraper bar
14. Wheels (2)
15. Handle frame locks (2)
16. Battery compartment
17. Auger speed dial
18. 24V iON+ lithium‑ion dual‑port battery charger (24VCHRG‑DPC)
19. USB‑C port
20. 24V iON+ lithium‑ion battery (24VBAT‑XR12) featuring exclusive EcoSharp^® technology

Technical Data

Brushless Motor: 2800 W

Directional Control: 180º adjustable chute

Clearing Width: 21 in. (53 cm)

LED Lights: 3 W

Depth of Snow Cut Max: 12 in. (30 cm)

Tire Size: 7 in. (18 cm)

Throw Distance Max: 30 ft (9 m)

Battery Voltage Max*: 96V DC (4 x 24V)

Rotor: 2‑blade paddle auger

Battery Capacity: 12.0 Ah

No Load Speed: 1400 ± 100 rpm (high)
1200 ± 100 rpm (low)

Charger Input: 120V AC | 60 Hz | 160 W

Charger Output: 26V DC | 2.2 A (each socket)

Stages: Single stage

Charge Time Max: 6 hours

Net Weight: 75.5 lbs (34.2 kg)

*Generates 96V max with four 24V lithium-ion batteries. Initial no-load voltage, per fully charged battery, peaks at 24V. Nominal voltage under typical load is 21.6V.

Unpacking

Carton Contents

• Cordless snow blower with handle frame
• Discharge chute assembly
• 24V iON+ lithium‑ion battery (x4)
• 24V iON+ lithium ‑ion dual‑port charger (x2)
• Discharge chute screws (x3)
• Hex key
• Manual with registration card

1. Carefully remove the cordless snow blower and check to see that all of the above items are supplied.
2. Inspect the product carefully to make sure no breakage or damage occurred during shipping. If you find damaged or missing parts, DO NOT return the unit to the store. Please call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563).
3. NOTE: Do not discard the shipping carton and packaging material until you are ready to use the cordless snow blower. The packaging is made of recyclable materials. Properly dispose of these materials in accordance with local regulations or save the packaging for long‑term product storage.

The equipment and packaging material are not toys. Do not let children play with plastic bags, foils or small parts. These items can be swallowed and pose a suffocation risk!

Assembly

To avoid serious personal injury, read and understand all safety instructions provided.

Unpacking and assembly should be completed on a flat and stable surface, with adequate space for moving the machine and its packaging.

Adjusting the Handle Frame

1. Unlock the handle frame by rotating the handle frame locks on both sides clockwise (Fig. 1).
   
2. Rotate the handle frame up in a comfortable operation position (Fig. 2).
   
3. Lock the handle frame in position by rotating the handle frame locks on both sides counter‑clockwise (Fig. 3).
   

Discharge Chute Assembly

1. Place the discharge chute assembly onto the gear plate, aligning the 3 holes in the gear plate, and push down until the chute is flush and flat against the housing (Fig. 4).
   
2. Use the 3 discharge chute screws to secure the discharge chute assembly to the gear plate as shown. Tighten with the provided hex key (Fig. 5).
   

Battery Pack Operation

The equipment is powered by 4 lithium‑ion batteries. The battery packs are completely sealed and maintenance free.

The cordless snow blower can only be powered by four of the batteries together. One battery cannot provide sufficient power to the tool. Make sure to use four batteries of the same voltage and the same capacity. Using the tool with batteries of different capacities will cause damage to the batteries.

Battery Charge Level Indicator

The battery packs are equipped with a push button for checking the charge level. Simply press the push button to read off the battery charge level from the LEDs of the battery indicator:

• All 3 level monitoring LEDs are lit: Battery charge level is high.
• 2 level monitoring LEDs are lit: Battery charge level is decreasing. Stop work as soon as possible.
• 1 level monitoring LED is lit: Battery is flat. Stop work IMMEDIATELY and charge the battery. Otherwise, the battery's service life will be greatly shortened.

Lights	Light Indicators
	Charge level button
	The battery is at 30% capacity and requires charging
	The battery is at 60% capacity and requires charging soon
	The battery is at full capacity

NOTE: If the charge level button does not appear to be working, place the battery pack on the charger and charge as needed.

NOTE: Immediately after using the battery packs, the charge level button may display a lower charge than it will if checked a few minutes later. The battery cells "recover" some of their charge after resting.

USB Charging Port

Using a USB‑C charging cable (not included), plug the USB‑C connector into the battery. Then plug the other end of the cable into an AC adapter (not included) for charging at an electrical outlet (Fig. 6).

The battery indicator LEDs will illuminate to indicate charging progress. All three LEDs will light up once the battery is fully charged, at which point unplug the battery from the charging cable.

NOTE: You may also charge the battery using other USB devices such as computers.

NOTE: When disconnected from a power source, the USB‑C port can also be used to charge other electronic devices such as smartphones and tablets.

Charger Operation

Charge only 24V iON+ lithium‑ion battery packs with their compatible 24V iON+ lithium‑ion chargers. Other types of batteries may cause personal injury and damage.

To reduce the risk of electric shock, do not allow water to flow into the charger's AC/DC plug.

When to Charge the iON+ 24VBAT-XR12 Lithium-iON Batteries

NOTE: The iON+ 24VBAT‑XR12 lithium‑iON battery packs do not develop a "memory" when charged after only a partial discharge. Therefore, it is not necessary to run down the battery packs before charging them again.

• Use the battery indicator lights to determine when to charge your iON+ 24VBAT‑XR12 lithium‑iON battery packs.
• You can "top‑off" your battery packs' charge before starting a big job or after a long day of use.

Charging the Batteries

1. Open the battery compartment cover, and push the push lock buttons on the batteries to pull the battery packs out from the battery compartment (Fig. 7).
   
2. Check that the mains voltage is the same as that marked on the rating plate of the battery charger. Then, insert the charger's plug into the electrical wall outlet. When you plug in the charger, two green lights will illuminate and stay green (Fig. 8).
   
3. Place the battery packs into the charger by sliding the packs to lock them into position. When you insert the batteries into the charger, the two green lights will go off, and the red lights will illuminate to indicate that the batteries are charging (Fig. 9).
   
4. When the charger lights turn green, the batteries are fully charged (Fig. 9).
   NOTE: A fully discharged pack with an internal temperature in the normal range will fully charge in 6 hours (between 32ºF/0ºC and 113ºF/45ºC).
5. If the light indicators do not come on at all, check that the battery packs are fully seated into the bay. Remove the battery packs and reinsert. If the problem persists, contact an authorized Snow Joe^® + Sun Joe^® dealer or call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563) for assistance.
6. When charging is complete, remove the batteries from the charger by pressing the push lock buttons and sliding the batteries backward to unlock them from the charger (Fig. 10).
   
   
   FIRE HAZARD. When removing the batteries from the charger, be sure to unplug the charger from the outlet first, then remove the batteries from the charger.
   
   This charger does not automatically turn off when the batteries are fully charged. Please take care not to leave the batteries in the charger. Switch off or unplug the charger at the mains when charging is complete.
7. Timely recharging of the batteries will help prolong the batteries' life. You must recharge the battery packs when you notice a drop in the equipment's power.

Never allow the battery packs to become fully discharged as this will cause irreversible damage to the batteries.

Charging a Hot or Cold Battery Pack

The green indicator lights on the charger base indicates that the battery packs' temperatures are outside the charging range. Once the packs are within the acceptable range, normal charging will take place and the red light will be continuous. Hot or cold battery packs may take longer to charge.

Operations

AVOID INJURY. Read and understand the entire safety section before proceeding.

NOTE: Before inserting the batteries, verify that the snow blower's auger and rubber plates are firmly secured. Perform a test run to ensure that the rotor turns freely.

Starting + Stopping

The auger starts rotating immediately after the snow blower is switched on. Keep hands and feet away from the auger.

1. Open the battery compartment cover and insert the four batteries in until they click into place (Fig. 11). Close the battery compartment cover.
   
2. To switch the snow blower ON, press the safety button, then squeeze the switch bar lever (Fig. 12).
   
3. Once the snow blower starts, release the safety button and proceed with operation.
4. To power OFF, release the switch bar lever.

Adjust Auger Speed

This snow blower is equipped with auger speed adjustment system, which can set the auger speed from low to high. Follow the instruction to set the auger speed to fit in the working environment. Consider the working time, snow volume, and the surroundings when adjusting the auger speed. In general, lower auger speed provides longer battery runtime, but smaller plowing capacity and shorter throw distance. Check attached table for the specs that can be affected by the auger speed.

1. To increase the auger speed, scroll the speed adjustable dial counterclockwise with the switch bar level squeezed (Fig. 13).
   
2. To reduce the auger speed, scroll the speed adjustable dial clockwise with the switch bar lever squeezed (Fig. 13).

Changing Throw Direction and Throw Height

Never direct the snow discharge chute at the operator, at bystanders, at vehicles or at nearby windows. The discharged snow and foreign objects accidentally picked up by the snow blower can cause serious damage and personal injury.

Always orient the discharge chute in the opposite direction from where you, bystanders, surrounding vehicles or windows are located.

1. The discharge chute can be adjusted 180 degrees by pressing the chute rotate button in the desired direction (Fig. 14).
   
2. The chute deflector on the top of the discharge chute controls the height of the snow stream. To adjust the height that the snow is thrown, squeeze the trigger on the chute‑deflector handle, and then raise/lower the chute deflector. Release the trigger on the chute deflector handle to lock the chute deflector in place (Fig. 15).
   

NOTE: ALWAYS position discharge chute deflector at a safe angle before engaging the auger. DO NOT throw snow any higher than necessary.

LED Headlights

The LED headlights are located on the front of the snow blower (Fig. 16).

1. To turn on the LED light, press the LED light button (Fig. 17).
   
2. To turn off, press the LED light button again.

NOTE: After you have finished using your snow blower, remember to turn OFF the LED light button.

Operating Tips

Foreign objects, such as rocks, broken glass, nails, wire, or string, can be picked up and thrown by the snow blower, causing serious personal injury. Remove all foreign objects from the area to be plowed before operating the snow blower.

Snow is best removed as soon as possible after snow fall.

1. Keep the area of operation free of foreign objects that can become thrown by the blades. Perform a thorough inspection of the area since some objects may be hidden from view by surrounding snow. If the snow blower hits an obstruction or picks up a foreign object during use, stop the snow blower, remove the battery, remove the obstruction, and inspect the unit for damage. Repair or replace any damaged part before restarting and operating the unit.
2. Keep children, pets, and bystanders away from the area of operation. Be aware that the normal noise of the machine when turned on may make it difficult for you to hear approaching people.
3. To clear an area, run unit in an overlapping series of paths. For large areas, start in the middle and throw snow to each side, so snow is not cleared more than once.
4. Note the wind direction. If possible, move in the same direction as the wind so that the snow is not thrown against the wind (and thus back into your face and on the just cleared path).
5. Do not push the snow blower with excessive force. Do not exceed the unit's intake or throw rate.
6. Some parts of the snow blower may freeze under extreme temperature conditions. Do not attempt to operate the snow blower with frozen parts. If the parts freeze while the snow blower is in use, stop the snow blower, remove the battery, and inspect for frozen parts. Free all parts before restarting or operating the snow blower. Never force controls that have frozen.
7. For larger areas, a definite pattern of operation is required to thoroughly clean an area of snow. These patterns will avoid throwing snow in unwanted places, a well as eliminate the need for a second removal of snow (Fig. 18).
   
   Pattern A: Throw the snow to the right or left side where it is possible. For areas such as a long driveway, it is advantageous to start in the middle. Plow from one end to the other, throwing snow to both sides.
   Pattern B: If the snow can only be thrown to one side of the area to be cleared, start on the opposite side.

Maintenance

To order genuine replacement parts or accessories for the Snow Joe^® 24V‑X4‑SB21 cordless snow blower, please visit snowjoe.com or contact the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563).

Make sure to turn off the switch and remove the batteries before performing any maintenance task on your snow blower.

General Maintenance Tips

• Do not attempt to repair the machine unless you have the proper tools and instructions for disassembly and repair of the machine.
• Check bolts and screws at frequent intervals for proper tightness to ensure that the equipment is in safe working condition.
• After each snow removal, shut off the motor, wait for all revolving parts to stop completely, remove the batteries and wipe residual ice and snow off the unit.

Proper Care for Batteries + Chargers

To reduce the risk of injury, always unplug the chargers and remove the battery packs from the charger before performing any maintenance task. Never disassemble the battery pack or charger. Contact your Snow Joe^® + Sun Joe^® dealer or the Snow Joe^® + Sun Joe^® customer service center for ALL repairs.

• To reduce the risk of injury and damage, never immerse your battery packs or charger in liquid or allow any liquid to flow inside these components.
• Clean out dust and debris from chargers vents and electrical contacts by blowing with compressed air.
• Use only mild soap on a damp cloth to clean the battery packs and chargers, keeping away from all electrical contacts. Certain cleaning agents and solvents are harmful to plastics and other insulated parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household detergents containing ammonia. Never use flammable or combustible solvents around battery packs, battery chargers or tools.
• The 24V iON+ lithium‑ion battery chargers have no serviceable parts.

Replacing Scraper Bar

Damage to auger housing will result if the scraper bar wears down too far. To replace scraper bar:

1. Position unit on a hard, flat, smooth level surface.
2. Detach the worn scraper bar from the snow blower by removing the 4 sets of nuts, washers and bolts that hold it in place (Fig. 19).
   
3. Install the new scraper bar and fasten it securely to the snow blower with the original sets of nuts, washers and bolts.

Replacing Auger Blades

During use, the auger blades will wear down over time, which will eventually cause incomplete cleaning. If the unit cannot plow snow completely and leaves snow on ground, consider changing the auger blades.

Replacing the auger blades involves close operation with the auger and the blades. To avoid injury caused by unintentional starting, make sure the batteries are not inserted before proceeding with the operation, and wear heavy duty gloves during operation.

Tools Required (Not Provided):

• 10 mm wrench
• 13 mm wrench
• Heavy duty gloves

In total there are 6 blade pieces fixed by 16 sets of screws, washers and nuts in the unit. When replacing worn auger blades, pay close attention to the order in which you remove them. Remove the 4 blade pieces on the sides first, and then the 2 blade pieces fixed on the middle steel plate. Assemble the new auger blades in the reverse order of the disassembly (Figs. 20 – 21).

1. To remove the first blade on the side, use a 10 mm wrench to hold the bolt steady, and use a 13 mm wrench to loosen and remove the nut. Repeat the operation to remove all 3 sets of bolt and nut, and gently remove the blade from the auger (Fig. 22).
   
2. Follow the same instruction to remove the other 3 blades located on the sides. Rotate the auger when working on the blades on the back.
3. After 4 blades on the side are removed, move to the two blade pieces that are fixed on the middle steel plate. Use the 10 mm wrench to hold the bolt steady, and use the 13 mm wrench to loosen and remove the nut. Repeat on the other nut and bolt set, and gently remove the blade from the central plate (Fig. 23).
   
4. Rotate the auger to expose the other blade on the plate. Follow the same instruction to remove it.
5. After all old blades are removed, follow the reverse order to assemble the new blades. Use the original sets of hardware to secure the blades on the auger.

Replacing Auger Belt

Tools Required (Not Provided):

• 10 mm wrench (2)
• Heavy duty gloves

1. Position unit on a hard, flat, smooth level surface, with the batteries removed.
2. Use 2 10 mm wrenches to remove the bolts and nuts that are used to fix the right side panel. Then remove the right side panel to expose the belt, as shown (Fig. 24).
   
   NOTE: The 2 bolts located on the left have 2 nuts on the back, while the other 4 bolts don't. Use one 10 mm wrench to hold the left two bolts steady and remove the nuts with the other 10 mm wrench first, and then remove all the bolts.
3. Remove the drive belt by slowly turning the auger pulley counterclockwise while pulling the belt outwards (Fig. 25).
   
4. Install the new drive belt, rotating it onto the pulleys (Fig. 26).
   
   NOTE: Rotate the new drive belt first around the engine pulley, then around the auger pulley. Slowly turn the auger pulley clockwise to drive the belt inwards.
5. Replace the side panel on the unit, secure with the original hardware. The snow blower is ready to use.

Storage

1. Examine the cordless snow blower thoroughly for worn, loose or damaged parts. Should you need to repair or replace a part, contact an authorized Snow Joe^® + Sun Joe^® dealer or call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563) for assistance.
2. Clean the snow blower before storing or transporting. Be sure to secure the unit while transporting.
3. Remove the battery packs from the cordless snow blower before storing.
4. Store the cordless snow blower indoors in a locked, dry place out of the reach of children to prevent unauthorized use or damage.

Battery + Charger Off-Season Storage

• Do not expose your battery packs or chargers to water, rain or allow them to get wet. This could permanently damage the chargers and the battery packs. Do not use oil or solvents to clean or lubricate your battery packs as the plastic casing can become brittle and crack, causing a serious risk of injury.
• Store the battery packs and chargers at room temperature away from moisture. Do not store in damp locations where corrosion of terminals may occur. As with other battery pack types, permanent capacity loss can result if the pack is stored for long periods of time at high temperatures (over 120ºF/49ºC).
• 24V iON+ lithium‑ion battery packs maintain their charge during storage longer than other battery pack types. As a general practice, it is best to unplug the battery chargers and remove the battery packs when they are not in use. Recharge the battery packs every 6 months to 50% capacity (2 lights on) during off‑season storage to maintain optimal battery performance.

Battery Caution + Disposal Information

Always dispose of your battery packs according to federal, state, and local regulations. Contact a recycling agency in your area for recycling locations.

Even discharged battery packs contain some energy. Before disposing, use electrical tape to cover the terminals to prevent the battery pack from shorting, which could cause a fire or explosion.

To reduce the risk of injury or explosion, never burn or incinerate a battery pack even if it is damaged, dead or completely discharged. When burned, toxic fumes and materials are emitted into the surrounding atmosphere.

• Batteries vary according to device. Consult your manual for specific information.
• Install only new batteries of the same type in your product (where applicable).
• Failure to insert batteries in the correct polarity, as indicated in the battery compartment or manual, may shorten the life of the batteries or cause batteries to leak.
• Do not mix old and new batteries.
• Do not mix Alkaline, Standard (Carbon‑Zinc) or Rechargeable (Nickel Cadmium, Nickel Metal Hydride, or Lithium‑Ion) batteries.
• Do not dispose of batteries in fire.
• Batteries should be recycled or disposed of as per state and local guidelines.

Service + Support

If your Snow Joe^® 24V‑X4‑SB21 cordless snow blower requires service or maintenance, please call the Snow Joe^® + Sun Joe^® customer service center at 1‑866‑SNOWJOE (1‑866‑766‑9563).

Model + Serial Numbers

When contacting the company, reordering parts or arranging service from an authorized dealer, you will need to provide the model and serial numbers, which can be found on the decal located on the housing of the unit. Copy these numbers into the space provided below.

Troubleshooting

Always turn the tool OFF and remove the batteries before performing any adjustments, maintenance, or repairs to your cordless snow blower.