DEWALT DCH253, DCH273 Heavey Duty 20V Max Cordless Rotary Hammer Instruction Manual

**DEWALT DCH253, DCH273 Heavey Duty 20V Max Cordless Rotary Hammer Instruction Manual

**

Definitions Safety Guidelines

The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury
NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in property damage.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL US TOLL FREE AT: 1- 800-4-DEWALT (1-800-433-9258).

WARNING: To reduce the risk of injury, read the instruction manual.

General Power Tool Safety Warnings

WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions 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

1. Keep work area clean and well lit. Cluttered or dark areas invite accidents.
2. 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.
3. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

ELECTRICAL SAFETY

1. 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.

2. 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.

3. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

4. 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.

5. 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.

6. 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

1. 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.
2. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, nonskid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
3. 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.
4. 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.
5. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations
6. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts
7. ) 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.

POWER TOOL USE AND CARE

1. 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.
2. 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.
3.  Disconnect the plug from the power source and/or the battery pack 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.
4. 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.
5. Maintain power tools. 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.
6. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
7. 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.

BATTERY TOOL USE AND CARE

1. 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.
2. Use power tools only with specifically designated battery   packs. Use of any other battery packs may create a risk of injury and fire.
3. 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.
4. 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.

SERVICE

1. 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.

Additional Safety Instructions for Rotary Hammers

• Wear ear protectors. Exposure to noise can cause hearing loss.
• Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.
• Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
• Be certain that the material being drilled does not conceal electric or gas service and that their locations have been verified with the utility companies.
• Use clamps or other practical way to secure and support the workpiece to a stable platform. Holding the work by handor against your body is unstable and may lead to loss of control.
• Wear safety goggles or other eye protection. Hammering operations cause chips to fly. Flying particles can cause permanent eye damage. Wear a dust mask or respirator for applications that generate dust. Ear protection may be required for most applications.
• Keep a firm grip on the tool at all times. Do not attempt   to operate this tool without holding it with both hands. Operating this tool with one hand will result in loss of control. Breaking through or encountering hard materials such as re-bar may be hazardous as well.
• Do not operate this tool for long periods of time. Vibration  caused by hammer action may be harmful to your hands and arms. Use gloves to provide extra cushion and limit exposure by taking frequent rest periods.
• Do not recondition bits yourself. Chisel reconditioning should be done by an authorized specialist. Improperly reconditioned chisels could cause injury.
• Accessories and tool may get hot during operation. Wear gloves when handling them if performing heat producing applications such as hammer drilling and drilling metals.
• Never lay the tool down until the bit has come to a complete stop. Moving bits could cause injury.
• Do not strike jammed bits with a hammer to dislodge them. Fragments of metal or material chips could dislodge and cause injury.
• Slightly worn chisels can be resharpened by grinding.
• Do not overheat the bit (discoloration) while grinding a new edge. Badly worn chisels require reforging. Do not reharden and temper the chisel.
• Air vents often cover moving parts and should be avoided. Loose clothes, jewelry or long hair can be caught in moving parts.

WARNING: ALWAYS use safety glasses. Everyday eyeglasses are NOT safety glasses. Also use face or dust mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT:

• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
•  NIOSH/OSHA/MSHA respiratory protection.

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 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.

• 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, eyes, or lay on the skin may promote absorption of harmful chemicals.

WARNING: Use of this tool can generate and/or disperse dust, which may cause serious and permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory protection appropriate for the dust exposure. Direct particles away from face and body

WARNING: ALWAYS wear proper personal hearing protection  that conforms to ANSI S12.6 (S3.19) during use. Under some  conditions and duration of use, noise from this product may contribute to hearing loss.
WARNING: ALWAYS use eye protection. All users and bystanders must wear eye protection that conforms to ANSI Z87.1.
CAUTION: When not in use, place tool on its side on a stable surface where it will not cause a tripping or falling hazard. Some tools with large battery packs will stand upright on the battery pack but may be easily knocked over.

• The label on your tool may include the following symbols. The symbols and their definitions are as follows:
  V ………………. volts A ………………….amperes

Important Safety Instructions for All Battery Packs

When ordering replacement battery packs, be sure to include the catalog number and voltage. Consult the chart at the end of this manual for compatibility of chargers and battery packs. The battery pack is not fully charged out of the carton. Before using the battery pack and charger, read the safety instructions below and then follow charging procedures outlined.

READ ALL INSTRUCTIONS

• Do not charge or use the battery pack in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Inserting or removing the battery pack from the charger may ignite the dust or fumes.
• NEVER force the battery pack into the charger. Do not modify the battery pack in any way to fit into a noncompatible charger as battery pack may rupture causing serious personal injury. Consult the chart at the end of this manual for compatibility of batteries and chargers.
• Charge the battery packs only in designated DEWALT chargers.
• DO NOT splash or immerse in water or other liquids.
• Do not store or use the tool and battery pack in locations where the temperature may reach or exceed 104 °F (40 °C) (such as outside sheds or metal buildings in summer). For best life store battery packs in a cool, dry location.
  NOTE: Do not store the battery packs in a tool with the trigger switch locked on. Never tape the trigger switch in the ON position.

WARNING: Fire hazard. Never attempt to open the battery pack for any reason. If the battery pack case is cracked or damaged, do not insert into the charger. Do not crush, drop or damage the battery pack. Do not use a battery pack or charger that has received a sharp. blow, been dropped, run over or damaged in any way (e.g., pierced  with a nail, hit with a hammer, stepped on). Damaged battery packs should be returned to the service center for recycling.
WARNING: Fire hazard. Do not store or carry the battery pack so that metal objects can contact exposed battery terminals. For example, do not place the battery pack in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails, screws, keys, etc. Transporting batteries can possibly cause fires if the battery terminals inadvertently come in contact with conductive materials such as keys, coins, hand tools and the like. The US Department of Transportation Hazardous Material Regulations (HMR) actually prohibit transporting batteries in commerce or on airplanes (e.g., packed in suitcases and carry-on luggage) UNLESS they are properly protected from short circuits. So when transporting individual battery packs, make sure that the battery terminals are protected and well insulated from materials that could contact them and cause a short circuit

SPECIFIC SAFETY INSTRUCTIONS FOR LITHIUM ION (Li-Ion)

• Do not incinerate the battery pack even if it is severel damaged or is completely worn out. The battery pack can explode in a fire. Toxic fumes and materials are created when lithium ion battery packs are burned.
• If battery contents come into contact with the skin, immediately wash area with mild soap and water. If battery liquid gets into the eye, rinse water over the open eye for 15 minutes or until irritation ceases. If medical attention is needed, the battery electrolyte is composed of a mixture of liquid organic carbonates and lithium salts.
• Contents of opened battery cells may cause respiratory irritation. Provide fresh air. If symptoms persist, seek medical attention

WARNING
urn hazard. Battery liquid may be flammable if exposed to spark or flame.

The RBRC® Seal

The RBRC® (Rechargeable Battery Recycling Corp oration) Seal on the nickel cadmium, nickel metal hydride or lithium-ionbatteries (or battery packs) indicates that the costs to recycle these batteries (or battery packs) at the end of their useful life have already been paid by DEWALT. In some areas, it is illegal to place spent nickel cadmium, nickel metal hydride or lithium-ion batteries in the trash or municipal solid waste stream and the Call 2 Recycle® program provides an environmentally conscious alternative. Call 2 Recycle, Inc., in cooperation with DEWALT and other battery users, has established the program in the United States and Canada to facilitate the collection of spent nickel cadmium, nickel metal hydride or lithium-ion batteries. Help protect our environment and conserve natural resources by returning the spent nickel cadmium, nickel metal hydride or lithium-ion batteries to an authorized DEWALT service center or to your local retailer for recycling. You may also contact your local recycling center for information on where to drop off the spent battery. RBRC® is a registered trademark of Call 2 Recycle, Inc.

Important Safety Instructions for All Battery Chargers

SAVE THESE INSTRUCTIONS

This manual contains important safety and operating instructions for battery chargers

• Before using the charger, read all instructions and cautionary markings on the charger, battery pack and product using the battery pack.
  WARNING
  Shock hazard. Do not allow any liquid to get inside the charger. Electric shock may result.
  CAUTION
  Burn hazard. To reduce the risk of injury, charge only DEWALT rechargeable battery packs. Other types of batteries may overheat and burst resulting in personal injury and property damage.
  NOTICE
  Under certain conditions, with the charger plugged into the power supply, the charger can be shorted by foreign material. Foreign materials of a conductive nature, such as, but not limited to, grinding dust, metal chips, steel wool, aluminum foil or any buildup of metallic particles should be kept away from the charger cavities. Always unplug the charger from the power supply when there is no battery pack in the cavity. Unplug the charger before attempting to clean

• DO NOT attempt to charge the battery pack with any chargers other than the ones in this manual.The charger and battery pack are specifically designed to work together.

• These chargers are not intended for any uses other than charging DEWALT rechargeable batteries. Any other uses may result in risk of fire, electric shock or electrocution.

• Do not expose the charger to rain or snow.

• Pull by the plug rather than the cord when disconnecting the charger. This will reduce the risk of damage to the electric plug and cord.

• Make sure that the cord is located so that it will not be stepped on, tripped over or otherwise subjected to damage or stress.

• Do not use an extension cord unless it is absolutely necessary. Use of improper extension cord could result in risk of fire, electric shock or electrocution.

• When operating a charger outdoors, always provide a dry location and use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock

• An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that is, 16 gauge has more capacity than 18 gauge. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. When using more than one extension to make up the total length, be sure each individual extension contains at least the minimum wire size. The following table shows the correct size to  use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The lower the gauge number, the heavier the cord.
  Minimum Gauge for Cord Sets

  Ampere Rating| Volts| Total Length of Cord in Feet (meters)
  120V| 25 (7.6)| 50 (15.2)| 100 (30.5)| 150 (45.7)
  240V| 50 (15.2)| 100 (30.5)| 200 (61.0)| 300 (91.4)
  MoreThan| Not More Than| AWG
  0| 6| | 18| 16| 16| 14
  6| 10| 18| 16| 14| 12
  10| 12| 16| 16| 14| 12
  12| 16| 14| 12| Not Recommended

• Do not place any object on top of the charger or place the charger on a soft surface that might block the ventilation slots and result in excessive internal heat. Place the charger in a position away from any heat source. The charger is ventilated through slots in the top and the bottom of the housing.

• Do not operate the charger with a damaged cord or plug.

• Do not operate the charger if it has received a sharp blow, been dropped or otherwise damaged in any way. Take it to an authorized service center.

• Do not disassemble the charger; take it to an authorized service center when service or repair is required. Incorrect reassembly may result in a risk of electric shock, electrocution or fire.

• Disconnect the charger from the outlet before attempting  any cleaning. This will reduce the risk of electric shock. Removing the battery pack will not reduce this risk.

• NEVER attempt to connect 2 chargers together.

• The charger is designed to operate on standard 120V household electrical power. Do not attempt to use it on any other voltage. This does not apply to the vehicular charger.

Chargers

Your tool uses a DEWALT charger. Be sure to read all safety instructions before using your charger. Consult the chart at the end of this manual for compatibility of chargers and battery packs.

Charging Procedure (Fig. 1)

1. Plug the charger into an appropriate outlet before inserting the battery pack.
2. Insert the battery pack (G) into the charger, as shown in Figure 1, making sure the pack is fully seated in charger. The red (charging) light will blink continuously, indicating that the charging process has started.
3. The completion of charge will be indicated by the red light remaining ON continuously. The pack is fully charged and may be used at this time or left in the charger.

Indicator Light Operation

DCB101, DCB102, DCB103

PACK CHARGING
  PACK CHARGED
HOT/COLD DELAY
PROBLEM PACK OR CHARGER

DCB107, DCB112, DCB113, DCB115

PACK CHARGING
PACK CHARGED
HOT/COLD DELAY

Charge Indicators

This charger is designed to detect certain problems that can arise. Problems are indicated by the red light flashing at a fast rate. If this occurs, re- insert the battery pack into the charger. If the problempersists, try a different battery pack to determine if the charger is working properly. If the new pack charges correctly, then the original pack is defective and should be returned to a service center or other collection site for recycling. If the new battery pack elicits the same trouble  indication as the original, have the charger and the battery pack tested at an authorized service center.

HOT/COLD DELAY DCB101, DCB102, DCB103

These chargers have a hot/cold delay feature. When the charger detects a battery that is too hot or too cold, it automatically starts a delay, suspending charging. The red light flashes long, then short while in the hot/cold delay mode.
Once the battery has reached an optimum temperature, the charger will automatically resume the charging procedure. This feature ensures maximum battery life.

DCB107, DCB112, DCB113, DCB115

These chargers have a hot/cold delay feature. When the charger detects a battery that is too hot or too cold, it automatically starts a delay, suspending charging. The red light will continue to blink, but a yellow indicator light will be illuminated during this suspension.Once the battery has reached an optimum temperature, the yellow
light will turn off and the charger will automatically resume the charging procedure. This feature ensures maximum battery life.

LEAVING THE BATTERY PACK IN THE CHARGER

The charger and battery pack can be left connected with the charge indicator showing Pack Charged.

WEAK BATTERY PACKS:

Weak batteries will continue to function but should not be expected to perform as much work.

FAULTY BATTERY PACKS DCB101, DCB102, DCB103

These chargers will not charge a faulty battery pack. The charger will indicate faulty battery pack by refusing to light or by displaying problem pack or charger.
NOTE: This could also mean a problem with a charger.

DCB107, DCB112, DCB113, DCB115

These chargers will not charge a faulty battery pack. The charger will indicate faulty battery pack by refusing to light.
NOTE: This could also mean a problem with a charger.

Wall Mounting

DCB107, DCB112, DCB113, DCB115

These chargers are designed to be wall mountable or to sit upright on
a table or work surface.
If wall mounting, locate the charger within reach of an electrical outlet. Mount the charger securely using drywall screws at least 1″ (25.4 mm) long, screwed into wood to an optimal depth leaving approximately 7/32″ (5.5 mm) of the screw exposed.

Important Charging Notes

1. . Longest life and best performance can be obtained if the battery pack is charged when the air temperature is between 65 °F and 75 °F (18 ° – 24 °C). DO NOT charge the battery pack in an airtemperature below +40 °F (+4.5 °C), or above +104 °F (+40 °C). This is important and will prevent serious damage to the battery pack.
2. The charger and battery pack may become warm to the touch while charging. This is a normal condition, and does not indicate a problem. To facilitate the cooling of the battery pack after use, avoid placing the charger or battery pack in a warm environment such as in a metal shed or an uninsulated trailer.
3. A cold battery pack will charge at about half the rate of a warm battery pack. The battery pack will charge at that slower rate throughout the entire charging cycle and will not return to maximum charge rate even if the battery pack warms.
4. If the battery pack does not charge properly:
   • Check operation of receptacle by plugging in a lamp or other appliance;
   • Check to see if receptacle is connected to a light switch which turns power off when you turn out the lights;
   • Move the charger and battery pack to a location where the surrounding air temperature is approximately 65 °F – 75 °F(18 ° – 24 °C);
   • If charging problems persist, take the tool, battery pack and charger to your local service cente.
5. The battery pack should be recharged when it fails to produce sufficient power on jobs which were easily done previously. DO NOT CONTINUE to use under these conditions. Follow the charging procedure. You may also charge a partially used pack whenever you desire with no adverse effect on the battery pack.
6. Foreign materials of a conductive nature such as, but not limited to, grinding dust, metal chips, steel wool, aluminum foil, or any buildup of metallic particles should be kept away from charger cavities. Always unplug the charger from the power supply when there is no battery pack in the cavity. Unplug the charger before attempting to clean.
7. Do not freeze or immerse the charger in water or any other liquid.

WARNING:
Shock hazard. Don’t allow any liquid to get inside the charger. Electric shock may result

WARNING
Burn hazard. Do not submerge the battery pack in any liquid or allow any liquid to enter the battery pack. Never attempt to open the battery pack for any reason. If the plastic housing of the battery pack breaks or cracks, return to a service center for recycling.

Storage Recommendations

1. The best storage place is one that is cool and dry, away from direct sunlight and excess heat or cold.
2. For long storage, it is recommended to store a fully charged battery pack in a cool dry place out of the charger for optimal results.

NOTE: Battery packs should not be stored completely depleted of charge. The battery pack will need to be recharged before use.

SAVE THESE INSTRUCTIONS FOR FUTURE USE

COMPONENTS (Fig. 2)

**** WARNING
Never modify the power tool or any part of it. Damage or personal injury could result.

1.  Side handle
2.  Trigger switch
3. Forward/reverse control button (Lock-off button)
4. Mode selector
5. Main handle
6. Worklight
7. Battery pack
8. Battery release button
9.  SHOCKS – Active Vibration control
10. Utility hook

INTENDED USE

These heavy-duty cordless rotary hammers are designed for professional concrete drilling and chiseling applications
DO NOT use under wet conditions or in presence of flammable liquids
or gases.
These heavy-duty cordless rotary hammers are professional power
tools. DO NOT let children come into contact with the tool. Supervision is required when inexperienced operators use this tool.

Side Handle (Fig. 2)

**WARNING**
To reduce the risk of personal injury, ALWAYS operate the tool with the side handle (A) properly installed. Failure to do so may result in the side handle slipping during tool operation and subsequent loss of control. Hold tool with both hands to maximize control.
The side handle (A) clamps to the front barrel (collar) and may be rotated 360° to permit right-or left-hand use. The side handle can be tightened by rotating the black plastic portion of the side handle clockwise. The side handle must be tightened sufficiently to resist the twisting action of the tool if the accessory binds or stalls. Be sure to grip the side handle at the far end to control the tool during a stall. To loosen side handle, rotate counterclockwise.

Trigger Switch (Fig. 2)

To turn the tool on, squeeze the trigger switch (B). To turn the tool off, release the trigger switch. Your tool is equipped with a brake. The chuck will stop as soon as the trigger switch is fully released.

VARIABLE SPEED TRIGGER SWITCH

The variable speed trigger switch enables you to select the best speed for a particular application. The farther you squeeze the trigger switch, the faster the tool will operate. For maximum tool life, use variable speed only for starting holes or fasteners.
NOTE: Continuous use in variable speed range is not recommended. It may damage the trigger switch and should be avoided.

Utility Hook (Fig. 3)

A utility hook is fitted to the left side of the tool. To extend the utility hook pull it out from the side of the tool. To store the utility hook push it back flush with the side of the tool. The utility hook (J) and can be positioned to the left or right of the tool to accommodate left or righthanded users.

1. Position the utility hook into the extended position and remove the hex head screw.

2. Pull out the utility hook (J) until it is free from unit.

3. Reinsert the utility hook into the desired side and push it into the slot.
   NOTE: On some models the slot may be covered with a sticker. Either remove the sticker or pierce the sticker to expose the slot underneath.

4. Re-insert the hex screw and tighten securely

If use of the hook is not desired at all, it can be removed completely.

Mode Selector (Fig. 4)

CAUTION:
Do not change to drill or hammer drill mode with a chisel bit in the chuck. Personal injury and damage to tool may result.
CAUTION:
Never change the mode while the unit is running. For straight drilling, rotate the mode selector (D) until the arrow points to the drill bit symbol (J). For rotary hammer mode, align the arrow with the rotary hammer symbol (K). For chipping mode, align arrow with the chipping symbol (L). NOTE: The mode selector (D) must be in drill, hammer or chipping mode at all times. There are no operable positions in between

Forward/Reverse Control Button (Fig. 2, 5)

A forward/reverse control button (C) determines the direction of bit rotation and also serves as a lock-off button.
To select forward rotation , release the trigger switch (B) and depress the forward/reverse control button on the right side of the tool.  To select reverse, depress the forward/reverse control button on the left side of the tool.
The center position of the control button locks the tool in the off position. When changing the position of the control button, be sure the trigger is released.
NOTE : The first time the tool is run after changing the direction of rotation, you may hear a click on start up. This is normal and does not indicate a problem.

Work light (Fig. 6)

CAUTION
Do not stare into worklight. Serious eye injury could result
There is a worklight (F) located on the front  of the tool. The worklight is activated when the trigger switch is depressed, and will automatically turn off 20 seconds after  the trigger switch is released. If the trigger switch remains depressed, the worklight will remain on.

NOTE: The worklight is for lighting the immediate work surface and is not intended to be used as a flashlight.

OPERATION

WARNING:
To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before making any adjustments or removing/installing attachments or accessories. An accidental start-up can cause injury.
WARNING:
To reduce the risk of personal injury, ALWAYS ensure workpiece is anchored or clamped firmly. If drilling thin material, use a wood “back-up” block to prevent damage to the material.

WARNING:
To reduce the risk of personal injury, ALWAYS operate the tool with the side handle properly installed and securely tightened. Failure to do so may result in the side handle slipping during tool operation and subsequent loss of control. Hold tool with both hands to maximize control.

Installing and Removing the Battery Pack (Fig. 7)

WARNING:
To reduce the risk of injury, never depress the battery release button without removing the battery pack. Depressing the battery release button without removing the battery pack can result in the battery pack falling out unexpectedly.
NOTE: For best results, make sure your battery pack is fully charged. To install the battery pack (G) into the tool handle, align the batterypack with the rails inside the tool’s handle and slide it into the handle until the battery pack is firmly seated in the tool and ensure that it does not disengage.

To remove the battery pack from the tool, press the release button (H) and firmly pull the battery pack out of the tool handle. Insert it into the charger as described in the charger section of this manual.

NOTE: Operating temperature of this tool is 19 ° to 104 °F (-7 ° to +40 °C). Using the tool outside of this temperature range will decrease the life of the tool.

FUEL GAUGE BATTERY PACKS (FIG. 8)

Some DEWALT battery packs include a fuel gauge which consists of three green LED lights that indicate the level of charge remaining in the battery pack.
The fuel gauge is an indication of approximate levels of charge remaining in the battery pack according to the following indicators.

To actuate the fuel gauge, press and hold the fuel gauge button (M). A combination of the three green LED   lights will illuminate designating the levelof charge left. When the level of charge in the battery is below the usable limit, the fuel gauge will not illuminate and the battery will need to be recharged.

NOTE:
The fuel gauge is only an indication of the charge left on the battery pack. It does not indicate tool functionality and is subject to variation based on product components, temperature and end-user application.
For more information regarding fuel gauge battery packs, please contact call 1-800-4-DEWALT (1-800-433-9258) or visit our website www.dewalt.com.

Shocks – Active Vibration Control (Fig. 2)

For best vibration control, hold the tool with one hand on the main handle (E) and the other hand on the side handle (A). Apply just enough pressure so the SHOCKS (I) in the rear handle are halfway depressed. The hammer only needs enough pressure to engage the internal active vibration control. Applying too much pressure will not make the tool drill faster and active vibration control will not engage.

SDS Chuck (Fig. 9)

WARNING:
Burn Hazard. ALWAYS wear gloves when changing bits. Accessible metal parts on the tool and bits may get extremely hot during operation. Small bits of broken material may damage bare hands.
To insert bit, insert shank of bit about 3/4″ (19 mm) into chuck (N). Push and rotate bit until it locks in place. The bit will be securely held. To release bit, pull the sleeve (O) back and remove the bit.

Proper Hand Position (Fig. 10)

WARNING:
To reduce the risk of serious personal injury, ALWAYS use proper hand position as shown.

WARNING:
To reduce the risk of serious personal injury, ALWAYS hold securely in anticipation of a sudden reaction. Proper hand position requires one hand on the side handle, with the other hand on the main handle

Drilling (Fig. 4)

WARNING:
To reduce the risk of personal injury, ALWAYS operate the tool with the side handle properly installed. Failure to do so ma result in the side handle slipping during tool operation and subsequent loss of control. Hold tool with both hands to maximize control.
NOTICE: If drilling thin material, use a wood “back-up” block to prevent damage to the material

1. Turn the mode selector (D) to the drill symbol (J).

2.  Use sharp drill bits only. For WOOD, use twist bits, spade bits,  power auger bits or hole saws. For METAL, use high-speed steel twist drill bits or hole saws. Use a cutting lubricant when drilling metals. The exceptions are cast iron and brass which should be drilled dry. For MASONRY, such as brick, cement, cinder block, etc., use carbide-tipped bits rated for percussion drilling.

3. Always apply pressure in a straight line with the bit. Use enough pressure to keep drill biting, but do not push hard enough to stall the motor or deflect the bit.

4. Hold tool firmly with both hands to control the twisting action of the drill. If model is not equipped with side handle, grip drill with one hand on the handle and one hand on the battery pack.
   WARNING: Drill may stall if overloaded causing a sudden twist. Always expect the stall. Grip the drill firmly to control the twisting action and avoid injury
   

5. IF DRILL STALLS , it is usually because it is being overloaded or improperly used. RELEASE TRIGGER IMMEDIATELY, remove drill bit from work, and determine cause of stalling. DO NOT DEPRESS TRIGGER ON AND OFF IN AN ATTEMPT TO START A STALLED DRILL — THIS CAN DAMAGE THE DRILL.

6. To minimize stalling or breaking through the material, reduce
   pressure on drill and ease the bit through the last fractional part of the hole.

7. Keep the motor running when pulling the bit back out of a drilled ole. This will help prevent jamming.

8. With variable speed drills there is no need to center punch the point to be drilled. Use a slow speed to start the hole and accelerate by squeezing the trigger harder when the hole is deep enough to drill without the bit skipping out.

DRILLING IN METAL

An SDS Plus to round shank adaptor chuck is required. Ensure thattool is in drill-only mode. Start drilling with slow speed and increase to full power while applying firm pressure on the tool. A smooth even flow of metal chips indicates the proper drilling rate. Use a cutting lubricant when drilling metals. The exceptions are cast iron and brass which should be drilled dry.

NOTE:
Large (5/16″ to 1/2″ [7.9 mm to 12.7 mm]) holes in steel can be made easier if a pilot hole (5/32″ to 3/16″ [4 mm to 4.8 mm]) is drilled first.

DRILLING IN WOOD
An SDS Plus to round shank adaptor chuck is required. Ensure that tool is in drill-only mode. Start drilling with slow speed and increase to full power while applying firm pressure on the tool. Holes in wood can be made with the same twist drills used for metal. These bits may overheat  unless pulled out frequently to clear chips from the flutes. For larger holes, use spade bits, power auger bits, or hole saws. Work that is apt to splinter should be backed up with a block of wood

DRILLING IN MASONRY

When drilling in masonry, use carbide-tipped bits rated for percussion drilling and be certain that the bits are sharp. Use a constant and firm force on the tool to drill most effectively. A smooth, even flow of dust  indicates the proper drilling rate.

HAMMERDRILL OPERATION (FIG. 4)

1. Turn the mode selector (D) to the rotary hammer symbol (K).
2.  When drilling, use just enough force on the hammer to keep it from bouncing excessively or “rising” off the bit. Too much force will cause slower drilling speeds, overheating, and a lower drilling rate.
3. Drill straight, keeping the bit at a right angle to the work. Do not exert side pressure on the bit when drilling as this will cause clogging of the bit flutes and a slower drilling speed.
4. When drilling deep holes, if the hammer speed starts to drop off, pull the bit partially out of the hole with the tool still running to help clear debris from the hole.
5. For masonry, use carbide-tipped bits or masonry bits. A smooth even flow of dust indicates the proper drilling rate.

Chipping and Chiselling (Fig. 4)

1.  Set the mode selector switch (D) to the chipping symbol (L).
2.  Insert the appropriate chisel and rotate it by hand to lock it into one of 51 positions.
3. Adjust the side handle (A) as required.
4. Switch on the tool and start working.
5. Always switch off the tool when work is finished and before unplugging.

MAINTENANCE

WARNING:
To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before making any adjustments or removing/installing attachments or accessories. An accidental start-up can cause injury

Cleaning

WARNING:
Blow dirt and dust out of all air vents with clean, dry air at least once a week. To minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection and proper NIOSH/ OSHA/MSHA respiratory protection when performing this.
WARNING:
Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.

CHARGER CLEANING INSTRUCTIONS

WARNING:
Shock hazard. Disconnect the charger from the AC outlet before cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth or soft non-metallic brush. Do not use water or any cleaning solutions.

Accessories

WARNING:
Since accessories, other than those offered by  DEWALT, have not been tested with this product, use of such  accessories with this tool could be hazardous. To reduce the risk of injury, only DEWALT recommended accessories should be used with this product.
The D25303DH is available, at extra cost, for active dust extraction   during hammer/drilling operation.
Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory, please contact DEWALT Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286, call 1-800-4-DEWALT (1-800-433-9258) or visit our website: www.DEWALT.com.

MAXIMUM RECOMMENDED CAPACITIES
RPM :0–1,100 min-1
BPM: 0–4,600 min-1
Bits, Masonry Drilling: 1″ (25.4 mm)

Repairs

he charger and battery pack are not serviceable. To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement) should be performed by a DEWALT factory service center, a DEWALT authorized service center or other qualified service personnel. Always use identical replacement parts.

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• WARRANTY SERVICE:
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• C ONFIRMATION OF OWNERSHIP:
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• FOR YOUR SAFETY:
  Registering your product will allow us to contact you in the unlikely event a safety notification is required under the Federal Consumer Safety Act. Register online at www.DEWALT.com/register
  

Three Year Limited Warranty

DEWALT will repair, without charge, any defects due to faulty materials  or workmanship for three years from the date of purchase. This  warranty does not cover part failure due to normal wear or tool abuse.  For further detail of warranty coverage and warranty repair information, visit www.DEWALT.com or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.
In addition to the warranty, DEWALT tools are covered by our:

2 YEARS FREE SERVICE
DCH253, DCH273
DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first two years after purchase.
2 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DC9071, DC9091, DC9096, DC9280, DC9360, DC9180, DCB120, DCB127, DCB201, DCB203, DCB203BT, DCB207

3 YEARS FREE SERVICE ON DEWALT BATTERY PACKS
DCB200, DCB204, DCB204BT, DCB205

DEWALT BATTERY PACKS

Product warranty voided if the battery pack is tampered with in any  way. DEWALT is not responsible for any injury caused by tampering and may prosecute warranty fraud to the fullest extent permitted by law.

90 DAY MONEY BACK GUARANTEE

If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund – no questions asked.

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained in the packaging, call the local company or see website for warranty information.

FREE WARNING LABEL REPLACEMENT:

If your warning labels become illegible or are missing, call 1-800-4-DEWALT (1-800-433-9258) for a free replacement.

References

• DEWALT® Power Tools Official Site | Guaranteed Tough®
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