KOBALT KIW 124B-03 4913881 1/2 Inch Brushless Impact Wrench User Manual

October 28, 2023
Kobalt

KOBALT KIW 124B-03 4913881 1/2 Inch Brushless Impact Wrench

KOBALT KIW 124B-03 4913881 1 2 Inch Brushless Impact Wrench
product

PRODUCT SPECIFICATIONS

COMPONENT SPECIFICATION
Rated voltage 24 V
No-load speed (n0) 0-950 / 0-1500 / 0-2200 /min (RPM)
Anvil size 1/2” (13 mm) square
Maximum torque 500 ft. lbs when tightening 650 ft. lbs when loosening
Impact rate 0-1100 / 0-2000 / 0-2800 /min (IPM)
Recommended operating, charging and storage temperature 41°F (5°C) – 104°F

(40°C)

PACKAGE CONTENTS

KOBALT KIW 124B-03 4913881 1 2 Inch Brushless Impact Wrench
01

PART DESCRIPTION
A Anvil
B Direction-of-rotation selector
C Variable-speed trigger switch
D Torque/Speed button
E LED work light
--- ---
F Mode button
G Handle

WARNING

  •  Remove the tool from the package and examine it carefully. Do not discard the carton or any packaging material until all parts have been examined.
  •  If any part of the tool is missing or damaged, do not attach the battery pack or use the tool until the part has been repaired or replaced. Failure to heed this warning could result in serious injury.

SAFETY INFORMATION

Please read and understand this entire manual before attempting to assemble or operate this product. If you have any questions regarding the product, please call customer service at 888-3KOBALT (888-356-2258) , 8 a.m. – 8 p.m., EST, Monday – Sunday. You could also contact us at partsplus@lowes.com.
WARNING

  • The operation of any power tool can result in foreign objects being thrown into your eyes, which can result in severe eye damage. Before beginning power-tool operation, always wear safety goggles or safety glasses with side shields and a full-face shield, when needed. We recommend using a wide vision safety mask over eyeglasses or standard safety glasses with shields. Always use eye protection marked to comply with ANSI Z87.1.
  • Some dust created by power sanding, sawing, grinding, drilling and other construction activities contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
    •  Lead from lead-based paints,
    • Crystalline silica from bricks and cement and other masonry products, and
    • Arsenic and chromium from chemically-treated lumber.
  • Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

Know the Tool
To operate this tool, carefully read this manual and all labels affixed to the tool before using it. Keep this manual available for future reference.
Important
This tool should be serviced only by a qualified service technician.
Read All Instructions Thoroughly
Some of the following symbols may be used on this tool. Please study them and their meaning. Proper interpretation of these symbols will allow you to operate the tool better and more safely.

SYMBOL DEFINITION SYMBOL DEFINITION
V Volts n0 No-load Speed
RPM Revolutions per Minute IPM Impacts per Minute
…/min Revolutions or Strokes per Minute or d.c. Direct Current
N m Newton Meter ft. lbs. Pound-foot
A danger, warning, or caution. It means ‘Attention! Your safety is
involved.’ To reduce the risk of injury, user must read instruction manual.
To reduce the risk of injury, always wear ear protection. To reduce the

risk of injury, always wear eye protection.

General Power Tool Safety Warnings

WARNING

  • Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference

  • The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work Area Safety

  • Keep work area clean and well lit. Cluttered or dark areas invite accidents.
  •  Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks, which may ignite the dust or fumes.
  •  Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

  • Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce the risk of electric shock.
  •  Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
  • Do not expose power tools to rain or wet conditions. Water entering a power tool will increase risk of electric shock.
  •  Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
  •  When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
  •  If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

Personal Safety

  •  Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
  •  Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
  • Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.
  • Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
  •  Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
  •  Dress properly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
  •  If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
  •  Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power tool use and care

  •  Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
  •  Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
  •  Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
  •  Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
  •  Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
  • Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
  •  Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
  •  Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery Tool Use and Care

  • Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
  • Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
  • When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
  •  Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
  •  Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
  •  Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 265 °F (130 °C) may cause explosion.
  •  Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.
Service
  •  Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
  •  Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Impact Wrench Safety Warnings
Hold the power tool by insulated gripping surfaces, when performing an operation where the fastener may contact hidden wiring. Fasteners contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Additional Warnings
Use only with the battery packs and chargers listed below:

BATTERY PACK BATTERY CHARGER

**** KB 224-03; KB 424-03; KB 524-03;
KB 624-03; KXB 424-03; KXB 824-03

|

KRC 2445-03; KRC 2490-03;
KRC 2404-03; KDPC 124-03;
KCH 2401-03; KCH 2411-03

PREPARATION

Know Your Impact Wrench
Before attempting to use the impact wrench, familiarize yourself with all of its operating features and safety requirements.
WARNING

  •  Do not allow familiarity with the impact wrench to cause carelessness. Remember that one careless moment is enough to cause severe injury. Before attempting to use any tool, be sure to become familiar with all of the operating features and safety instructions.
  • Do not attempt to modify this tool or create accessories not recommended for use with this tool. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

OPERATING INSTRUCTIONS

To Attach Battery PackKOBALT KIW 124B-03 4913881 1 2 Inch Brushless
Impact Wrench 07

  • Align the raised portion on the battery pack with the grooves on the bottom of the tool, and then slide the battery pack onto the tool as shown.
  • Make sure that the latch on the battery pack snaps into place and the battery pack is secured to the tool before beginning operation.

NOTICE:
When placing the battery pack on the tool, be sure that the raised rib on battery pack aligns with the groove on the tool and the latches snap into place properly. Improper assembly of the battery pack can cause damage to internal components.
To Detach Battery Pack

  •  Press the battery-release buttons to release the battery pack.
  • Pull the battery pack backward to remove it from the tool.

WARNING
Battery tools are always in operating condition. Therefore, always remove the battery pack when the tool is not in use or when carrying the tool at your side.
Direction-of-Rotation Selector (Forward/Center Lock/Reverse)KOBALT KIW
124B-03 4913881 1 2 Inch Brushless Impact Wrench 08 The direction of bit rotation is reversible and is controlled by a selector located above the trigger switch (C). With the impact wrench held in the normal operating position, pointing away from you:

  • Position the direction-of-rotation selector (B) to the left of the tool for forward rotation to tighten the bolts.
  • Position the direction-of-rotation selector (B) to the right of the tool for reverse rotation to loosen the bolts.
  •  Setting the selector in the center position locks the trigger to helps reduce the possibility of accidental starting when the tool is not in use.

NOTICE:

  • To prevent gear damage, always allow the impact wrench to come to a complete stop before changing the direction of rotation.
  •  The impact wrench will not run unless the direction-of-rotation selector is engaged fully to the left or right.

Variable-speed Trigger SwitchKOBALT KIW 124B-03 4913881 1 2 Inch
Brushless Impact Wrench 09

  • Position the direction-of-rotation selector (B) to the left or right of the tool as needed to unlock the trigger switch (C).
  • To turn the impact wrench ON, depress the trigger switch (C).
  • To turn it OFF, release the trigger switch.

Variable Speed
The variable-speed trigger switch delivers higher speed with increased trigger pressure and lower speed with decreased trigger pressure.
Electric Brake
The impact wrench is equipped with an electric brake. When the trigger switch is released, the electric brake engages automatically to quickly stop rotation.
Torque/Speed Range SelectionKOBALT KIW 124B-03 4913881 1 2 Inch Brushless
Impact Wrench 10 The impact wrench features a torque/speed button (D), located on the base of the tool, to select among three different variable torque/speed ranges:

No load Speed, Impact rate, and Torque Torque/Speed Range
1 2
/min (RPM) 0-950
/min (IPM) 0-1100
ft. lbs 220

To engage the torque/speed setting:

  • Attach the battery pack to the tool.
  • Position the direction-of-rotation selector (B) to the left or right of the tool.
  • Depress and release the variable-speed trigger switch (C) to “wake up” the control panel.
  •  Press the torque/speed button (D) to set the range. Every press of the button switches the torque/speed to the next range.

NOTE:

  • One light illuminates – the impact wrench provides lowest speed and torque.
    Two lights illuminate – the impact wrench provides medium speed and torque.
    Three lights illuminate – the impact wrench provides maximum speed and torque.

  • The higher the set range, the more torque the impact wrench produces to turn a fastener. The proper setting depends on the job, the bit type, fastener, and material you are using.

NOTICE:

  •  The LED indicator will turn off within approximately 1 min after the variable-speed trigger switch or torque/speed button is released, and will revert to the previous setting when the tool is turned on again.
  • Do not change the torque/speed setting when the tool is running. The torque/speed range will not change until you release the variable-speed trigger switch.

Mode SelectionKOBALT KIW 124B-a3 4913881 1 2 Inch Brushless Impact Wrench
11 This tool features two modes: “Auto Slow” and “Hand Tight”. The mode button (F) is located on the base of the tool. You can find details in the table below.
To engage the “Auto Slow” or “Hand Tight” mode:

  • Attach the battery pack to the tool.
  • “Hand Tight” mode only works when the tool is in the forward rotation. Position the direction- of-rotation selector (B) to the left of the tool for forward rotation. “Auto Slow” mode only works when the tool is in the reverse rotation. Position the direction- of-rotation selector (B) to the right of the tool for reverse rotation.
  • Depress and release the variable-speed trigger switch (C) to “wake up” the control panel.
  •  Press the mode button (F) to select the mode. Every time you press the mode button, the mode will be switched on/off. The green light of the corresponding mode will illuminate to indicate that it is activated.

NOTICE:
The LED indicator will turn off within approximately 1 min after the variable- speed trigger switch or mode button is released, and will revert to the previous setting when the tool is turned on again.

MODE APPLICATIONS FEATURE FUNCTION
“Hand Tight” Tightening car wheel lug nuts which will later be

checked/tightened with a torque wrench.
OR
Driving bolt/nut into the workpiece with good finish.| The tool will stop rotating soon after impact mechanism is engaged.| This mode allows the user to work fast with precision while not damaging the workpiece. It helps to prevent over- tightening of the bolt/nut and damage to the workpiece surface.
NOTE: The timing to stop the driving varies depending on the type of the bolt/nut and material to be driven in. Perform a test driving before using this mode.
“Auto Slow”| Removing bolt/nut from the workpiece in a controlled manner.| The tool will slow down the speed as soon as the bolt/nut is loose.| This mode helps to prevent the bolt/nut from falling or being thrown out of the socket.

LED Work LightKOBALT KIW 124B-03 4913881 1 2 Inch Brushless Impact Wrench
12 The LED work light (E), located on the base of the impact wrench, will illuminate when the trigger switch is depressed. This provides additional light on the surface of the work piece for operation in lower-light areas. The LED work light will turn off after approximately 10 seconds after the variable-speed trigger switch is released.

  •  The LED work light will flash rapidly if the tool has stopped automatically when the tool became overloaded or too hot. Please wait for the tool to cool down, at which point it can be started again.
  • The LED work light will flash slowly to indicate that the battery charge is very low. Please recharge the battery pack.

Installing and Removing a Socket

KOBALT KIW 124B-03 4913881 1 2 Inch Brushless Impact Wrench
13

  •  Place the direction-of-rotation selector (B) in the center (lock) position.
  • To install a 1/2 in. socket (not included), simply push the socket completely onto the square anvil (A).
  • To remove the socket, pull it off.

WARNING

  • Only use sockets designed for impact wrenches. Sockets not designed for impact wrenches could break and result in user injury. Inspect sockets prior to use to ensure that they have no cracks or other visible damage.
  • Use protective gloves when removing the socket from the tool, or first allow it to cool. The socket may be hot after prolonged use.

Tightening Fasteners with the Impact Wrench
WARNING

  •  Battery tools are always in operating condition. Therefore, the direction-of-rotation selector (B) should always be locked when not in use or carrying at your side.

The proper tightening torque may differ depending on the type or size of the bolt, the material of the workpiece to be tightened, etc. Before starting your job, always perform a test operation to determine the proper tightening time for your bolt or nut.

  • Check the direction-of-rotation selector (B) for the correct setting (forward or reverse).
  •  Select the mode as necessary according to the work piece.
  •  Select the suitable speed and torque range for the application. It is advisable to perform a trial driving on a scrap material to determine the selection.
  •  Hold the tool firmly and place the socket over the bolt or nut.
  • Depress the variable-speed trigger switch (C) to turn the impact wrench on. The variable speed trigger switch delivers higher speed with increased trigger pressure and lower speed with decreased trigger pressure.
  •  Tighten the bolt or nut to the proper torque.
  • To turn the impact wrench OFF, release the variable-speed trigger switch (C).
  •  After tightening, always check the torque with a torque wrench.

NOTICE:

  •  Hold the tool straight along the axis of the bolt or nut.
  • Excessive tightening torque may damage the bolt/nut or socket.

Practice with various fasteners, noting the length of time required to reach the desired torque. Check the tightness with a torque wrench. If the fasteners are too tight, reduce the impacting time. If they are not tight enough, increase the impacting time. The tightening torque is affected by a wide variety of factors, including the following:

  • Socket
    •  Failure to use the correct size socket will cause a reduction in the tightening torque. A worn socket (wear on the hex end or square end) will cause a reduction in the tightening torque.
  •  Bolt
    •  Although the torque coefficient and the class of bolt may be the same, the proper tightening torque will differ according to the diameter of the bolt. Although the diameters of bolts may be the same, the proper tightening torque will differ according to the torque coefficient, the class of bolt and the bolt length.
  •  The use of a universal joint or an extension bar (both sold separately) will reduce the tightening force of the impact wrench somewhat. Compensate by tightening for a longer period of time.
  •  The manner of holding the tool or the material to be fastened will affect the torque.

Loosening Fasteners
The torque that is required to loosen a fastener averages 75% to 80% of the tightening torque, depending on the condition of the contacting surfaces. However, if rust or corrosion causes seizing, more torque may be required.

CARE AND MAINTENANCE

All maintenance should only be carried out by a qualified service technician.
Cleaning
Before cleaning or performing any maintenance, remove the battery pack from the tool. For safe and proper operation, always keep the tool and its ventilation slots clean.
Always use only a soft, dry cloth to clean your impact wrench; never use detergent or alcohol. Lubrication Maintain your tools regularly. After a period of use, add a small amount of lubrication to the anvil to avoid rust to the anvil and to make it easier for sockets to go on and off.

TROUBLESHOOTING

WARNING

  • Place the direction-of-rotation selector (B) in the center lock position and detach the battery pack from the impact wrench before performing troubleshooting procedures.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
The impact wrench does not work. Battery pack charge is depleted. Charge the

battery pack.
The socket cannot be installed.| The socket is of wrong size.| Use a correct socket that fits 1/2″

square anvil.

Motor overheating.| Ventilation slots are obstructed.| Clean and clear the ventilation slots. Do not cover the ventilation slots with hand during operation.
The LED work light flashes rapidly.| The tool has stopped working to protect internal circuits.| Release the trigger switch, wait for the tool to cool down, then and start the tool again.
The LED work light flashes slowly.| The battery pack charge is very low.| Charge the battery pack.

WARRANTY

For 5 years from the date of purchase, the power tool is warranted and for 3 years from date of purchase the battery & charger are warranted for the original purchaser to be free from defects in material and workmanship. This guarantee does not cover damage due to abuse, normal wear, improper maintenance, neglect, unauthorized repair/alteration, or expendable parts and accessories expected to become unusable after a reasonable period of use. If you think your product meets the above guarantee criteria, please return it to the place of purchase with valid proof of purchase and the defective product will be repaired or replaced at no charge. This guarantee gives you specific legal rights, and you may also have other rights that vary from state to state.
Lowe’s Home Centers LLC. Mooresville, NC 28117 Printed in China

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