milwaukee 2880-20 M18 Fuel 4-1-2 Inch – 5 Inch Braking Grinder User Manual

OPERATOR’S MANUAL

Cat. No. / No de cat.
2880-20, 2881-20

M18 FUEL™ 4-1/2″ / 5″ BRAKING GRINDER
WARNING To reduce the risk of injury, the user must read and understand the operator’s manual.

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 the 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 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  ntangled cords increase the risk of electric shock.
• When operating a power tool outdoors, use an extension cord suitable for outdoor use. The 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. The use of an 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 thepower 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 arts. 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 notturn 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. The 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 the 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 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.

SPECIFIC SAFETY RULES FOR GRINDERS

Safety Warnings Common for Grinding, Sanding, Wire Brushing or Cutting-Off Operations:

• This power tool is intended to function as a grinder, sander, wire brush, hole cutter or cutoff tool. Read all safety warnings,  instructions, illustrations and specifications rovided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

• Operations such as polishing are not 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 convert this power tool o operate in a way that is not specifically designed and specified by the tool manufacturer. Such a conversion may result in a loss of control and cause serious personal injury.

• Do not use accessories which are not specifically designed and specified by the tool manufacturer. Just because the accessory can be attached to your power tool, it  oes 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.

• The dimensions of the accessory mounting must fit the dimensions of the mounting hardware of the power tool. 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  se 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 face shield, safety goggles or safety glasses. As appropriate, wear a dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various applications. The dust mask or respirator must be capable of filtrating particles generated by the particular application. 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 a 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.
  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 arms to allow you to resist kickback forces. Always use 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. The 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 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, a segmented diamond wheel with a peripheral gap greater than 10 mm or toothed saw blade. Such blades create frequent kickback and loss of control. Safety Warnings Specific for Grinding and Cutting-Off Operations:

• Use only wheel types that are specified 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 to the operator. The guard helps to protect the operator from broken wheel fragments, accidental contact with the wheel, and sparks that could ignite clothing.

• Wheels must be used only for specified applications. For example: do not grind with the side of the 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. A wheel intended for a larger power tool is not suitable for the higher speed of a smaller tool and may burst.

• When using dual-purpose wheels always use the correct guard for the application being performed. Failure to use the correct guard may not provide the desired level of guarding, which could lead to serious injury. Additional Safety Warnings Specific for CuttingOff Operations:

• 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 it 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 kick back 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.

• Do not attempt to do the curved cutting. 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, which can lead to serious injury. Safety Warnings Specific for Sanding Operations:

• Use properly sized sanding disc paper. Follow manufacturer’s recommendations, when selecting sanding paper. Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc or kickback. Safety Warnings Specific for Wire Brushing Operations:

• Be aware that wire bristles are thrown by the brush even during ordinary operations. Do not overstress the wires by applying excessive load to the brush. The wire bristles can easily penetrate light clothing and/or skin.

• If the use of a guard is recommended for wire brushing, do not allow any interference of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and centrifugal forces. Additional Safety Warnings

• WARNING To reduce the risk of injury, when working in dusty situations, wear appropriate respiratory protection or use an OSHA-compliant dust extraction solution.

• Always operate with two hands.

• Always use common sense and be cautious when using tools. It is not possible to anticipate every situation that could result in a dangerous outcome. Do not use this tool if you do not understand these operating instructions or you feel the work is beyond your capability; contact Milwaukee Tool or a trained professional for additional information or training.

• Maintain labels and nameplates. These carry important information. If unreadable or missing, contact a MILWAUKEE service facility for a free replacement.

• **WARNING** Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known tocause cancer, birth defects, or other reproductive harm. Some examples of these chemicals are:

• lead from lead-based paint

• crystalline silica from bricks and cement and othermasonry 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.

SYMBOLOGY

| Volts Direct Current
---|---
| Rated Revolutions per Minute (RPM)
| Do not use the guard for cut-off operations

| RAPIDSTOP™ Electric Braking
| UL Listing Mark for Canada and the U.S.

FUNCTIONAL DESCRIPTION

1. Spindle lock
2. Handle
3. Dust screen
4. Switch lock-off (2880-20)
5. Paddle switch (2880-20) Slide switch (2881-20)| 6. Side handle
7. Type 27 guard
8. Accessory
9. Guard lock lever
10. Type 1 clip-on guard
---|---

SPECIFICATIONS

Cat. No. ……………………………….. 2880-20, 2881-20
Volts …………………………………………………….. 18 DC
Battery Type ………………………………………….M18™
Charger Type …………………………………………M18™
Rated RPM ……………………………………………..8 500
Spindle Thread Size ……………………………… 5/8″-11
Max Capacity ……………………………………….. 5″x1/4″
Recommended Ambient
Operating Temperature ……………….. 0°F to 125°F

ASSEMBLY

WARNING Recharge only with the charger specified for the battery. For specific charging instructions, read the operator’s manual supplied with your charger and battery.
Removing/Inserting the Battery
To remove the battery, push in the release buttons and pull the battery pack away from the tool.
WARNING Always remove the battery pack ny time the tool is not in use. o insert the battery, slide the pack into the body of the tool. Make sure it latches securely into place.
WARNING To reduce the risk of injury when grinding, always use properly installed guards. The guard type must match the wheel type to provide maximum protection for the operator if the wheel should break.

Removing/Installing/Adjusting the Type 27 Guard
This tool is shipped with a guard. Always use a guard unless otherwise indicated by these instructions.

1. To remove the guard.
   WARNING! Remove the battery pack and remove any accessories from spindle.

2. Press in the guard lock lever and rotate the guard to line up the tabs on the grinder with the slots in the guard

3. Press in the lock lever and lift the guard straight up and away from the tool.

4. To install the guard, remove the battery pack and remove any accessories from the spindle.
   NOTE: Use only 4-1/2″ grinding wheels with 4-1/2″ guards (available as an accessory). Use only 5″ grinding wheels with 5″ guards.

5.  Line up the tabs on the grinder with the slots inthe guard.

6. Press in the guard lock lever and press the guard onto the tool.

7. To adjust the guard, press in the guard lock lever and rotate the guard to one of five detent slots.
   WARNING! Always adjust the guard to provide the operator with maximum protection while operating.

Installing/Removing the Type 1 Clip-on Guard
When using a Type 1 wheel, always use the Type 1 clip-on guard.

1. Remove the battery pack.
   WARNING! Always remove the battery pack before changing or removing accessories.

2. Properly install the Type 27 guard according to the instructions, and adjust it properly to provide the operator with maximum protection while operating.

3. To install the Type 1 clip-on guard, slide the Type 1 clip-on guard over the Type 27 guard until it clips into place.

4. To remove, remove the battery pack and then separate the Type 1 clip-on guard from the Type 27 guard.

WARNING To reduce the risk of injury, always use a side handle when using this tool. Hold securely.

Installing Side Handle
The side handle may be installed on either side of the gear case. Position the side handle in the location which offers the best control and guard protection. To install, thread side handle into side handle socket and tighten securely.

WARNING To reduce the risk of injury, the operator should be instructed in the use, care, and protection of grinding wheels.

Grinding Wheel Selection
Use grinding wheels and accessories that are:

• correct size as written on the tool’s nameplate.
• rated at or above the RPM listed on the tool’s nameplate.
• correct accessory, wheel type, and grit for the job. Grinding is the cutting action of thousands of abrasive grains on the face of a grinding wheel. When grinding metals such as steel and iron, choose an aluminum oxide grinding wheel. Select a silicon carbide grinding wheel for stone and concrete. Use cotton reinforced wheels for non-ferrous metals. Type 1 reinforced 1/8″ thick or less Cut-Off Wheels are suited for small cut-off and shallow notching operations only. Always handle wheels carefully to avoid damage. Before installing any wheel, always inspect it for cracks. If the wheel is cracked, discard it to prevent others from using it.

Care of Grinding & Cut-Off Wheels
Grinding/cut-off wheels should be protected from:

• wetness and extreme humidity
• any type of solvent
• extreme changes in temperature
• dropping and bumping Grinding and cut-off wheels should be stored:
• in an organized way so wheels can be removed without disturbing or damaging other wheels
• with their safety information Grinding and cut-off wheels should NOT be dropped, rolled or bumped. Discard wheels that have been dropped, rolled, bumped, subjected to extreme changes in temperature, or come into contact with solvents or wetness.
  WARNING Only use accessories with Maximum Safe Operating  Speed rated at least equal to the maximum speed marked on the power tool. This speed is based on the strength of the wheel, allowing for a reasonable measure of safety. It is not meant to imply the best or most efficient operating speed. Do not exceed the Maximum Safe Operating Speed.

Installing/Removing Grinding

Wheels Make sure the wheel does not extend beyond the bottom of the guard. Threaded hub grinding wheels may require a deeper guard (see “Accessories”).

1. Remove the battery pack.
   WARNING! Always remove the battery pack before changing or removing accessories.

2. Properly position the guard.

3. Wipe the flange, flange nut and spindle to remove dust and debris. Inspect the parts for damage. Replace if needed. Use only MILWAUKEE mounting hardware designed or your tool.

4. Place the flange on spindle, as shown.

5. Place the selected wheel on the spindle and align it with the flange.

6. Position the flange nut over the spindle according to wheel thickness.
   7. Press in the spindle lock button while turning the flange nut clockwise. Tighten securely.
   8. To remove the wheel, remove the battery pack and reverse the procedure.

Sanding Disc Selection

Use sanding discs and accessories that are:

• correct size as written on the tool’s nameplate.
• rated at or above the RPM listed on the tool’s nameplate.
• correct accessory, wheel type and grit for the job. Select the correct type of sanding disc for your job. Generally, use 24 or 36 grit for heavy stock removal;50, 60, or 80 grit  for medium stock removal and 120 grit for finishing. Always begin with a coarse grit, using successively finer grits obtain the desired finish.
• Aluminum Oxide: For fast cutting,  general purpose discs for most metal jobs. Best for cold-rolled steel, stainless steel or metals requiring tough, fast cutting, long-lasting abrasives.
• Aluminum Zirconia Bi-Cut: Unique grit pattern is arranged n clusters for faster stock removal and cleaning.  Ideal for removing paint from cars, boats, etc. without clogging.
• Ceramic: Lasts up to 3 times longer than Aluminum Oxide Discs.  For general metal working. Ideal for tough jobs.

Installing Backing Pad and Sanding Discs

1. Remove the battery pack.
   WARNING! Always remove the battery pack before changing or removing accessories.

2. Wipe the accessories, disc nut, and spindle to remove dust and debris. Inspect the parts for damage. Replace if needed. Use only MILWAUKEE mounting hardware designed for your tool.

3. Slip backing pad onto the spindle with flat side away from gear case.

4. Place sanding disc on the backing pad and secure assembly to spindle with disc nut.
   

5. Press in the spindle lock button while turning the flange nut clockwise. Tighten securely.

6. To remove the backing pad and sanding disc, remove the battery pack and reverse the procedure.

Installing/Removing/Cleaning the Dust Screen
Using the dust screen will increase the performance and extend the life of the tool.

1. To attach the dust screen, snap the screen over the tool’s handle.
2. To remove the dust screen, insert a flat screwdriver into the notch at the top of the dust screen and pry away from the tool.
3.  To clean the dust screen, tap against a hard surface, or blow clean with compressed air.

OPERATION

WARNING To reduce the risk of injury, always wear proper eye protection marked to comply with ANSI Z87.1.
When working in dusty situations, wear appropriate respiratory protection or use an OSHA-compliant dust extraction solution.
Never grind without proper safety equipment.

Controlled Start
The controlled start feature reduces the torque reaction “jerk” when the trigger is pulled.

Electric Brake
(Models with RAPIDSTOP™)
The electric brake engages when the switch is released, causing the wheel to stop within seconds. There may be a delay between the time the switch is released and when the brake engages. Occasionally brake may miss completely. If the brake misses frequently, have the tool serviced by an authorized MILWAUKEE service facility. Make sure the tool comes to a complete stop before laying it down.

WARNING Always hold the tool firmly with both hands using the handles provided before and during grinding.

Paddle Switch Operation (2880-20)
To start the tool, grasp the handle and side handle firmly. Push the lock- off button forward and squeeze the paddle switch. To stop the tool, release the paddle switch. Make sure the tool comes to a complete stop before laying down the tool.

Slide Switch Operation (2881-20)
To start the tool, grasp the handle and side handle firmly and slide the switch to ON.
To stop the tool, release the switch. Make sure the tool comes to a complete stop before laying down the tool. To lock on the switch, slide the switch to ON and press down on the front of the switch. To stop the tool, press and release the switch. Make sure the tool comes to a complete stop before laying down the tool.

General Operation

1. If you have just installed an accessory or are beginning a period of work, test the wheel by letting it spin for one minute before applying it to the workpiece. WARNING! Never use an accessory that has been dropped. Out-of-balance or damaged accessories can mar the workpiece, damage the tool, and cause stress that may cause accessory failure.

2. Use a clamp, vise, or other practical means to hold the workpiece, freeing both hands to control the tool.

3. WARNING! Hold the tool securely with both hands. Start the tool.
   NOTE: If the battery is inserted when the tool is ON, the tool will not run. Turn the tool OFF, then back ON to begin work.

4. Allow accessory to come to full speed before beginning work.

5. Control pressure and surface contact between accessory and workpiece.
   WARNING! Never bang accessory onto work. Too much pressure causes accessory failure or slows speed.

6. When finished, turn off the tool and make sure it comes to a complete stop before laying it down.

Using Grinding Wheels
WARNING   The guard type must match the heel type to provide maximum protection for the operator if the wheel should break.
When grinding, hold the tool at a 5⁰ to 15⁰ angle, using constant pressure for a uniform finish. Too great an angle causes concentrated pressure on small areas which may gouge or burn the work surface.

Using Cut-Off Wheels
Cut-Off Wheels are suited for small cut-off and shallow notching operations only.
WARNING The guard type must match the wheel type to provide maximum protection for the operator if the wheel should break.
When using a cut-off wheel, hold the tool as shown, using only the edge of the wheel.
WARNING! Using the face of a Cut-Off Wheel (as in grinding) will cause the Wheel to crack and break, resulting in serious personal injury.

Using Wire Brushes
Wire brushes are useful for removing rust, scale, burrs, weld slag, etc.
WARNING Everyone in the area must wear protective clothing and safety goggles or face shields. Fatigued wires and residue will fly off the brush with considerable force, causing the potential for serious injury.
Never exceed the Maximum Safe Operating Speed of the brush. Do not use a damaged brush or one that is functioning improperly (throwing wires, out of- balance, etc.). These conditions increase the possibility of further brush failure and possible injury. Discard and replace damaged brushes immediately.
A “Type 27″ guard must be installed when using a wire wheel brush to provide maximum protection for the operator when fatigued wires break. (See Removing/Installing/Adjusting the guard”.)
Always install wire brushes according to the accessory manufacturer’s instructions. Only use accessories with threads matching the tool spindle.

Test the wheel for balance and loose or damaged wires by letting it spin for one minute before applying it to the workpiece. During this time, no one should stand in front of or in line with it.
Control pressure and surface contact between wheel and workpiece. Too much pressure causes over-bending of wires and heat build-up causing premature wire breaking, rapid dulling, and reduced brush life. Instead of more pressure, try a wire wheel  with a more aggressive cutting action (increased wire size, decreased wire length or different brush type (knot type vs. crimped wire type).

Using Sanding Discs
Hold tool at 5⁰ to 15⁰ angle to ensure proper sanding pressure and control. Too great an angle will result in too much pressure and could cause excessive wear to the disc and workpiece. Too small an angle will reduce control.
Use long, sweeping, side to side strokes, advancing forward to produce the desired finish.

Cross Sanding – When finishing a surface that has been prepared by a coarse disc or wheel, sand at right angles to the strokes made by the coarser disc. Finishing marks left from previous sanding are easily seen and removed for a uniform finish. Failure to cross sand when changing from a coarse disc to a finishing disc may result in deep scratches and circular marks.
Removing Welds or Hammer Marks – When removing welds or hammer marks, limit coarse sanding to the immediate area. Use successively finer grits to smooth the surface.
Finishing Metal – Constantly move across the surface. Work faster on curved surfaces where contact areas are smaller and pressure is greater. Flat areas may appear at the end of the stroke when pressure is too heavy. Ease up on pressure at end of each stroke and when reversing strokes.

**Troubleshooting

**

Deep scratches and circular marks can result from:

• Using too coarse a grit
• Using a partially glazed disc
• Dirt or loose metal on the workpiece
• Failure to sand across the grain when changing from coarse to finishing discs
• Failure to use closed coated discs to reduce the problem of grains working loose and scratching the workpiece Bluish discoloration of metal surface indicates:
• Excessive heat caused by circular motion in a small area
• Excessive pressure
• Use of worn out or glazed discs

MAINTENANCE

WARNING To reduce the risk of injury, always unplug the charger and remove the battery pack from the charger or tool before performing any maintenance. Never disassemble the tool, battery pack or charger. Contact a MILWAUKEE service facility for ALL repairs.

Maintaining Tool
Keep your tool, battery pack and charger in good repair by adopting a regular maintenance program. Inspect your tool for issues such as undue noise, misalignment or binding of moving parts, breakage of parts, or any other condition that may affect the tool operation. Return the tool, battery pack, and charger to a MILWAUKEE service facility for repair. After six months to one year, depending on use, return the tool, battery pack, and charger to a MILWAUKEE service facility for inspection.
If the tool does not start or operate at full power with a fully charged battery pack, clean the contacts on the battery pack. If the tool still does not work properly, return the tool, charger and battery pack, to a MILWAUKEE service facility for repairs.

WARNING To reduce the risk of personal injury and damage, never immerse your tool, battery pack or charger in liquid or allow a liquid to flow inside them.

Cleaning
Clean dust and debris from any vents. Keep tool clean, dry and free of oil or grease. Use only mild soap and a damp cloth to clean, since 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 tools.

Repairs
For repairs, return the tool, battery pack and charger to the nearest authorized service center.

ACCESSORIES

WARNING Use only recommended accessories. Others may be hazardous. For a complete listing of accessories, go online to www.milwaukeetool.com or contact a distributor.

SERVICE – UNITED STATES
1-800-SAWDUST (1.800.729.3878)
Monday-Friday, 7:00 AM – 6:30 PM CST or visit www.milwaukeetool.com
Contact Corporate After Sales Service Technical Support with technical, service/repair, or warranty questions.
Email : metproductsupport@milwaukeetool.com
Become a Heavy Duty Club Member at  ww.milwaukeetool.com to receive important notifications regarding your tool purchases.

SERVICE – CANADA
Milwaukee Tool (Canada) Ltd 1.800.268.4015
Monday-Friday, 7:00 AM – 4:30 PM CST
or visit www.milwaukeetool.ca

LIMITED WARRANTY USA & CANADA
Every MILWAUKEE power tool* (see exceptions below) is warranted to the original purchaser only to be free from defects in material and workmanship. Subject to certain xceptions, MILWAUKEE will repair or replace any part on an electric power tool which, after examination, s determined by MILWAUKEE to be defective in material or workmanship for a period of five (5) years* after the date of purchase unless otherwise noted. Return of the power tool to a MILWAUKEE factory Service Center location or MILWAUKEE Authorized Service Station, freight prepaid and insured, is required. A copy of the proof of purchase should be included with the returned product. This warranty does not apply to damage that MILWAUKEE determines to be from repairs made or attempted by anyone other than MILWAUKEE authorized personnel, misuse, alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
Normal Wear: Many power tools need periodic parts replacement and service to achieve best performance. This warranty does not coverrepair when normal use has exhausted the life of a part including, but not limited to, chucks, brushes, cords, saw shoes, blade clamps,o-rings, seals, bumpers, driver blades, pistons, strikers, lifters, and bumper cover washers.
This warranty does not cover Air Nailers & Staplers; Airless PaintSprayer; Cordless Battery Packs; Gasoline Driven Portable Power Generators; Hand Tools; Hoist – Electric, Lever & Hand Chain; M12™ Heated Gear; Reconditioned Product; and Test & Measurement Products. here are separate and distinct warranties available for these products.
**The warranty period for Job Site Radios, M12™ Power Port, M18™ Power Source, Jobsite Fan and Trade Titan™ Industrial Work Carts is one (1) year from the date of purchase. The warranty period for the M18 FUEL™ 1″ D-Handle High Torque Impact Wrenches, Drain Cleaning Cables, AIRSNAKE™ Drain Cleaning Air Gun Accessories,
REDLITHIUM™ USB Laser Levels, TRAPSNAKE™ 25′ Auger w/CABLE DRIVE™, FORCE LOGIC™ Press Tool Accessories and Greencross Line Laser is two (2) years from the date of purchase. The warranty period for the M18™ Compact Heat Gun, 8 Gallon Dust Extractor, M18™ Framing Nailers, M18 FUEL™ 1/2″ Ext. Anvil Controlled rque Impact Wrench w/ ONE-KEY™, M18 FUEL™ 1″ High Torque Impact Wrench w/ ONE-KEY™, M18 FUEL™ 2 Gal. Compact Quiet Compressor, M12™ Laser Levels, 165′ Laser Detector, M12™ 23GAPin Nailer, M18 FUEL™ 1/4″ Blind Rivet Tool w/ ONE-KEY™, M12FUEL™ Low-Speed Tire Buffer, M18 FUEL™ Random Orbital Polishers, M18™ Utility Fencing Stapler, and the 72″ Laser Tripod is three (3)years from the date of purchase. The warranty period for the LED in the led Work Light and the LED Upgrade Bulb for the Work Light is the etime of the product subject to the limitations above. If during normal use the LED or LED Bulb fails, the part will be replaced free of charge.Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE power tool product. The manufacturing date of the product will be used to determine the warranty period if no proof of purchase is provided at the time warranty service is requested. ACCEPTANCE OF THE  XCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CONTRACT FOR THE PURCHASE OF EVERY MILWAUKEEPRODUCTIF YOU DO NOT AGREE TO THIS CONDITION, YOU SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL  ILWAUKEEBE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL PUNITIVE DAMAGES, OR FOR ANY COSTS, ATTORNEY   EES, EXPENSES, LOSSES OR DELAYS ALLEGED TO BE AS A CONSEQUENCE OF ANY DAMAGE TO, FAILURE OF, OR DEFECT IN ANY PRODUCT  INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS OF PROFITS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES, WRITTEN OR ORAL.
TO THE EXTENT PERMITTED BY LAW, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE; TO THE EXTENT SUCH DISCLAIMER IS NOT PERMITTED BY LAW, SUCH IMPLIED WARRANTIES ARE LIMITED TO THE DURATION OF THE APPLICABLE EXPRESS WARRANTY AS DESCRIBED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU, THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE. This warranty applies to products sold in the U.S.A. and Canada only. Please consult the ‘Service Center Search’ in the Parts & Service section of MILWAUKEE’s website www.milwaukeetool.com or call 1.800. SAWDUST (1.800.729.3878) to locate your nearest service facility for warranty and non- warranty service on a Milwaukee electric power tool.

MILWAUKEE TOOL
13135 West Lisbon Road
Brookfield, WI 53005 USA
58140243d2\04/22
961014503-01(B)\Printed in China

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