FLEX FX3181 Brushless 24V 5 Inch 125mm Variable Speed Fixed Speed Angle Grinder User Manual

OPERATOR’S MANUAL

Model: FX3181/FX3181A
BRUSHLESS 24V, 5″ (125MM) VARIABLE SPEED / FIXED SPEED ANGLE
GRINDER

Contact Us /
833-FLEX-496
(833-3539-496)
www.Registermyflex.com
For English Version See page 2 

SAFETY SYMBOLS

The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols and the explanations with them deserve your careful attention and understanding. The symbol warnings do not, by themselves, eliminate any danger. The instructions and warnings they give are no substitutes for proper accident prevention measures.
WARNING
Be sure to read and understand all safety instructions in this Owner’s Manual, including all safety alert symbols such as “DANGER,” “WARNING,” and “CAUTION” before using this tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious personal injury.

The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols.

| This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
__ DANGER|

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

__**WARNING**|

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

__**CAUTION**|

CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, will result in minor or moderate injury.

Damage Prevention and Information Messages
These inform the user of important information and/or instructions that could lead to equipment or other property damage if they are not followed. Each message is preceded by the word “NOTICE”, as in the example below:
NOTICE: Equipment and/or property damage may result if these instructions are not followed.
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 a Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye protection which is marked to comply with ANSI Z87.1.

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 that may ignite 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 the 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 a 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 dustrelated 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 powertool 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 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 the 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 may cause an 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

SAFETY WARNINGS COMMON FOR GRINDING, ABRASIVE

CUTTING-OFF OPERATIONS

This power tool is intended to function as a grinder or cut-off tool. 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.
Operations such as sanding, wire brushing, and polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.
Do not use accessories that are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.
The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.
Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by flange, the arbor hole of the accessory must fit the locating diameter of the flange. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively, and may cause loss of control.
Do not use a damaged accessory. Before each use, inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear, or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no- load speed for one minute. Damaged accessories will normally break apart during this test time.
Wear personal protective equipment. Depending on the application, use a face shield, safety goggles, or safety glasses. As appropriate, wear a dust mask, hearing protectors, gloves, and a workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high-intensity noise may cause hearing loss. Keep bystanders a safe distance away from the work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond the immediate area of operation.
Hold the power tool by insulated gripping surfaces only, when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.
Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.
Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards. Do not operate the power tool near flammable materials. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Further safety instructions for all operations
Kickback and Related Warnings:

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush, or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on the direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.
Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use an auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces if proper precautions are taken.
Never place your hand near the rotating accessory. Accessory may kickback over your hand.
Do not position your body in the area where the power tool will move if kickback occurs. Kickback will propel the tool in the direction opposite to the wheel’s movement at the point of snagging.
Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges, or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.
Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.
The grinding surface of center depressed wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that projects through the plane of the guard lip cannot be adequately protected.
The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The guard helps to protect the operator from broken wheel fragments, accidental contact with wheel, and sparks that could ignite clothing.
Wheels must be used only for recommended applications. For example: do not grind with the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
Always use undamaged wheel flanges that are of the correct size and shape for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.
Do not use worn down wheels from larger power tools. Wheel intended for a larger power tool is not suitable for the higher speed of a smaller tool and may burst.
Do not “jam” the cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility
to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage. Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.
When wheel is binding or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never
attempt to remove the cut-off wheel from the cut while the wheel is in motion, otherwise, kickback may occur. Investigate and take corrective action to eliminate the cause of wheel binding.
Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully re-enter the cut. The wheel may bind, walk up, or kickback if the power tool is
restarted in the workpiece. Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
Use extra caution when making a “pocket cut” into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

WARNING

• 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, cement, and other masonry products.
  – Arsenic and chromium from chemically treated lumber.

• Your risk from these exposures varies, depending upon how often you do this type of work. To reduce your exposure to these chemicals:
  – Work in a well-ventilated area.
  – Work with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
  – Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and other construction activities. Wear protective clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth or eyes or to lie on the skin may promote absorption of harmful chemicals.

SYMBOLS

IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

surface speed, orbits, etc. per minute
O| Off position| Zero speed, zero torque…
1,2,3,…

Ⅰ,Ⅱ,Ⅲ,

| Selector settings| Speed, torque, or position settings. Higher number means greater speed
| Infinitely variable selector with off| Speed is increasing from 0 setting
| Arrow| Action in the direction of arrow

∼

| Alternating current (AC)| Type or a characteristic of current
| Direct current (DC)| Type or a characteristic of current
| Alternating or direct current (AC / DC)| Type or a characteristic of current
| Class II tool| Designates Double Insulated Construction tools.
| Protective earth| Grounding terminal
| Li-ion RBRC seal| Designates Li-ion battery recycling program

| Read the instructions| Alerts user to read manual
Symbol| Name| Designation/Explanation
---|---|---
|

Wear eye protection symbol

|

Alerts user to wear eye protection

| Always operate with two hands| Alerts user to always operate with two hands
| Do not use the guard for cut-off operations| Do not use the guard for cut- off operations

SYMBOLS (CERTIFICATION INFORMATION)

| **** This symbol designates that this tool is listed by Underwriters Laboratories.

| **** This symbol designates that this component is recognized by Underwriters Laboratories.

| **** This symbol designates that this tool is listed by Underwriters Laboratories, to United States and Canadian Standards.

| **** This symbol designates that this tool is listed by the Canadian Standards Association.

| **** This symbol designates that this tool is listed by the Canadian Standards Association, to United States and Canadian Standards.

| **** This symbol designates that this tool is listed by the Intertek Testing Services, to United States and Canadian Standards.

FUNCTIONAL DESCRIPTIONS AND SPECIFICATIONS

WARNING Use ONLY Type 27 depressed-center grinding wheels with 1/4″ thickness. Use ONLY Type 41 cut-off wheels with this angle grinder tool (such as the accessories not provided with this product). This product is only designed for grinding and cutting-off. Use for any other purpose is not recommended and may result in serious injury.

ASSEMBLY

WARNING
Detach the battery pack from the tool before making any assembly, adjustments, or changing accessories. Such preventive safety measures reduce the risk of starting the tool accidentally.
WARNING
To reduce the risk of injury, always remove the battery pack before making any adjustments or changing accessories.
TO ATTACH/DETACH BATTERY PACK (FIG. 2)
Be careful not to turn on the tool when attaching the battery pack.
To attach the battery pack:
Align the raised rib on the battery pack with the grooves in the tool, and then slide the battery pack onto the tool.
NOTICE: When placing the battery pack onto the tool, be sure that the raised rib on the battery pack aligns with the groove inside the tool and that the latches snap into place properly. Improper attachment of the battery pack can cause damage to internal components.
To detach the battery pack:
Depress the battery-release button located on the front of the battery pack to release the battery pack. Pull the battery pack out and remove it from the tool.
WHEEL GUARD INSTALLATION (FIG. 3)
This tool is shipped with two guards. A guard must be used when using the tool as a grinder or cut-off tool.
WARNING
Keep the guard between you and the wheel. Do not direct the guard opening toward your body.
a. Remove the battery pack from the tool.
b. Align the three raised ribs on the guard with the three notches on the collar. Place the guard onto the collar (1).
c. Turn the guard clockwise to the desired position (2).
Rotation is possible in one direction, only!
d. Remove in reverse order.
NOTICE: Use only grinding wheels of the specified size with the grinding guard. Use only cut-off wheels of the specified size with the cutting guard.
GRINDING /CUT-OFF WHEEL ASSEMBLY
WARNING
Turn the tool OFF and remove the battery pack before performing any assembly. To install a wheel: (Fig. 4-6)
a. Remove the battery pack from the tool.
b. Place the backing flange on the spindle, making sure that the flat surfaces on the bottom of the backing flange are engaged with the flat surfaces on the spindle.
c. Place the grinding or cut-off wheel (not supplied) on the backing flange.
d. When installing a grinding wheel, position it so that the raised, small diameter portion of the lock nut faces the hole in the grinding wheel.
e. When installing a cut-off wheel, position it so that the flat surface faces the cut-off wheel
WARNING
Do not reverse the lock nut. If the lock nut is not installed properly, the wheel cannot be properly tightened and serious injury can result.
f. While pressing the spindle lock, tighten the lock nut by turning it clockwise with the wrench supplied.
To remove the grinding/cut-off wheel:
a. Remove the battery pack from the tool.
b. While pressing the spindle lock, loosen the lock nut by turning it counter- clockwise with the wrench supplied.
WARNING
Press the spindle lock only when the spindle is at a standstill.
WARNING
Use protective gloves when removing the wheel from the tool, or first allow the wheel to cool down. It may be hot after prolonged use.

FILTER COVER (FIG. 7)
Using the filter cover will improve the
performance and extend the life of the tool.
a. Remove the battery pack.
b. To attach the filter cover, snap the filter cover onto the tool foot.
c. To remove the filter cover, insert a flathead screwdriver (not supplied) into the notch at the top of the filter cover and pry the filter cover away from the tool.
Clean the Filter cover
To clean the filter cover, tap it against a hard surface or blow it clean with compressed air.
WARNING
To reduce the risk of injury, wear safety goggles or glasses with side shields.

INSTALLING THE AUXILIARY HANDLE (FIG. 8)
The auxiliary handle, used to guide and balance the tool can be threaded into the front housing on either side of the tool, depending on personal preference and comfort.
Thread the auxiliary handle into the desired position and securely tighten it in place.

ADJUSTMENTS

PRESELECTING THE SPEED (FIG. 9)
NOTICE: This function is available only on model of FX3181A.
Your tool is equipped with a memory function. After turning the tool off, the tool will revert to the previous setting when it is turned on again. Use the + or – button to increase or decrease the speed. Each press changes the speed one level. The table below shows the relationship between rotational speed and the number of LEDs that shine in the indicator on the foot of the tool.

The Number of LEDs|

Speed (RPM)

---|---

| 3500
| 5000
| 7000
| 10000

WARNING
Never change speed setting while the tool is running for safety reasons.

ADJUSTING THE GUARD (FIG. 10)
To adjust the tool to suit the task at hand, the guard hood can be adjusted by 12 notches or 360° without a tool.
WARNING
Risk of injury! Wear protective gloves.
a. Remove the battery pack from the tool.
b. Turn guard opposite to the direction-of-rotation arrow on the gear head to the required position.

OPERATION INSTRUCTIONS

WARNING Battery tools are always in operating condition. Be careful when the tool is not in use or when carrying it at your side.

SWITCH BUTTON
The tool can be turned “ON” with the switch button, located at the side of the motor housing. The switch button can be locked in the “ON” position, a convenience for long grinding operations.
To turn the tool “ON” without locking it:
Slide the switch button forward by applying pressure ONLY at the REAR portion of the button.
When pressure is released the switch button will snap to the “OFF” position (Fig. 11-1).
To lock the switch “ON”:
Slide the switch button forward, then press on the FRONT portion of the button (Fig. 11-2).
To unlock the switch:
Simply press and release the REAR portion of the button.
The switch is spring loaded and will snap back automatically (Fig. 11-3).
WARNING
To reduce the risk of fire, personal injury, and product damage due to a short circuit, never immerse your tool, battery pack, or charger in fluid or allow fluid to flow inside them. Corrosive or conductive fluids, such as seawater, certain industrial chemicals, bleach or bleach- containing products, etc. can cause a short circuit.
WARNING
If any parts are damaged or missing, do not operate this product until the parts are replaced. Use of this product with damaged or missing parts could result in serious personal injury.
WARNING
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 injury.

WARNING
To prevent accidental starting that could cause serious personal injury, always remove the battery pack from the tool when assembling parts, making adjustments, or cleaning the tool.
This cordless angle grinder must be used only with the battery packs and chargers listed below:

Battery Pack| ****

Charger

---|---
2.5Ah| 5Ah| 8Ah| 12Ah
FLEX FX0111| FLEX FX0121| FLEX FX0221| FLEX FX0231| FLEX FX0411| FLEX FX0421

NOTICE: Please refer to the battery pack and charger manuals for detailed operating information.
USING WITH GRINDING WHEEL (FIG. 12)
WARNING
Always wear safety goggles or safety glasses with side shields during power tool operation. If the operation is dusty, also wear a dust mask.
WARNING
A grinding guard must be installed when using a grindig wheel to provide maximum protection for the operator.

Check the grinding wheels before application. Discard wheels that have been dropped, bumped, subjected to extreme changes in temperature, or have come into contact with
solvents or liquids.
a. Before beginning a period of work, test the tool by letting it spin for one minute before applying it to the workpiece.
b. Make sure that the workpiece is firmly clamped in place.
c. Hold the tool securely with both hands.
d. Start the tool.
NOTICE: If the battery is inserted when the tool switch is in the “ON” position, the tool will not run. Turn the tool off, then back on to begin work.
e. Allow the accessory to reach full speed before beginning work.
f. For a uniform finish, hold the tool at an angle of approximately 10° to 15° and apply (Fig.12) constant pressure. Too great an angle causes concentrated pressure on small areas, which may gouge or burn the work surface.
g. Control the pressure and surface contact between accessory and workpiece.

WARNING
Do not apply too much pressure. Too much pressure will cause the tool to overload and may cause personal injury.
h. When finished, turn off the tool and make sure that it comes to a complete stop before laying it down.
USING WITH CUT-OFF WHEEL (FIG. 13)
WARNING
Always wear safety goggles or safety glasses with side shields during power tool operation. If operation is dusty, also wear a dust mask.
WARNING
A cut-off guard must be installed when using a cut-off wheel to provide maximum protection for the operator.
WARNING
Using the cut-off wheel in a grinding operation will cause the wheel to crack and break, resulting in serious personal injury.
The cut-off wheel is suited for small cut-off operations only. When using a cut-off wheel, hold the tool as shown and use only the edge of the wheel.

DUST EXTRACTION
To reduce exposure to silica dust when surface grinding concrete, use this grinder with FLEX Surface Grinding Dust Shroud model FT312 connected to a suitable dust extractor/vacuum (both sold separately). Refer to the manual for FLEX FT312 for more information.

MAINTENANCE

WARNING
To avoid serious personal injury, always remove the battery pack from the tool when cleaning or performing any maintenance.
SERVICE
WARNING
Preventive maintenance performed by unauthorized personnel may result in misplacing of internal wires and components which could cause a serious hazard. We recommend that all tool services be performed by a FLEX Factory Service Center or Authorized FLEX Service Station.

GENERAL MAINTENANCE

WARNING
When servicing, use only identical replacement parts. Use of any other parts could create a hazard or cause product damage. Periodically inspect the entire product for damaged, missing, or loose parts such as screws, nuts, bolts, caps, etc. Tighten securely all fasteners and caps and do not operate this product until all missing or damaged parts are replaced. Please contact customer service or an authorized service center for assistance.
CLEANING
WARNING
The tool may be cleaned most effectively with compressed dry air. Always wear safety goggles when cleaning tools with compressed air. Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings.
WARNING
Certain cleaning agents and solvents damage plastic parts. Some of these are gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.
STORAGE
Store the tool indoors in a place that is inaccessible to children. Keep away from corrosive agents.

ACCESSORIES

WARNING
The use of any other accessories not specified in this manual may create a hazard.
Grinding Wheel Guard Auxiliary Handle Wrench

FLEX 5 YEAR LIMITED WARRANTY

Chervon North America, Inc. (“Seller”) warrants to the original purchaser only, that all FLEX 24V products will be free from defects in material or workmanship for a period of five years from date of purchase when the original purchaser registers the product within 30 days from the date of original retail purchase and retains their receipt as proof of purchase. THE 5-YEAR LIMITED WARRANTY PERIOD IS CONDITIONED ON REGISTRATION OF THE PRODUCT WITHIN 30 DAYS OF PURCHASE AND ONLY APPLICABLE TO FLEX 24V TOOLS, BATTERIES AND CHARGERS. If the original purchaser does not register their product within 30 days, the foregoing limited warranty will apply for a duration of three years. Product registration can be completed online at www.registermyflex.com.

24V Tools: 5-Year Limited Warranty with Registration
24V Batteries and Chargers: 5-Year Limited Warranty with Registration
Corded, 12V and 20V FLEX Legacy Products: 1-Year Limited Warranty, No Registration Benefit
Accessories and Attachments: No Warranty
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this 5-Year Limited Warranty and, to the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement of parts, without charge, which are defective in material or workmanship and which have not been misused, carelessly handled, or repaired by persons other than a FLEX Authorized Service Dealer. This warranty does not cover part failure due to normal wear and tear. To make a claim under warranty, return the complete product, transportation prepaid, to any FLEX Authorized Service Dealer. For Authorized FLEX Service Dealers, please visit www.registermyflex.com
or call 1-833-FLEX-496 (1-833-353-9496).
This 5-Year Limited Warranty does not apply to accessories, attachments or parts. Any implied warranties applicable to a product shall be limited in duration equal to the duration of the express warranties applicable to such product, as set forth in the first paragraph above. Some states in the U.S. and some Canadian provinces do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply.
FLEX is not responsible for direct, indirect, incidental, or consequential damages. Some U.S. states and Canadian provinces do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply. This limited warranty gives you specific legal rights, and you may also have other rights which vary by state in the U.S. and by the province in Canada.
This limited warranty applies only to products sold within the United States of America, Canada and the commonwealth of Puerto Rico. For warranty coverage within other countries, contact your local FLEX dealer.

© Chervon North America, 1203 E. Warrenville Rd., Naperville, IL 60563
www.flexpowertools.com
www.registermyflex.com
1-833-FLEX-496 (1-833-353-9496)

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