DEWALT Heavy-Duty Rotary Hammer D25733, D25773

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Technical Data

Identify additional safety measures to protect the operator from the effects of vibration and/or noise such as: maintain the tool and the accessories, keep the hands warm (relevant for vibration), organisation of work patterns.

Declarations of Conformity

EC-Declaration of Conformity

Machinery Directive

Rotary Hammer D25733, D25773

DEWALT declares that these products described under Technical Data are in compliance with: 2006/42/EC, EN62841-1:2015 + A11:2022, EN IEC 62841-2-6:2020 + A11:2020.

These products also comply with Directive 2014/30/EU and 2011/65/EU. For more information, please contact DEWALT at the following address or refer to the back of the manual.

The undersigned is responsible for compilation of the technical file and makes this declaration on behalf of DEWALT.

Markus Rompel
Vice President of Engineering, PTE-Europe
DEWALT, Richard-Klinger-Straße 11,
65510, Idstein, Germany
30.12.2022

UK Declaration of Conformity

THE SUPPLY OF MACHINERY (SAFETY) REGULATIONS 2008

Rotary Hammer D25733, D25773

DEWALT declares that these products described under Technical Data are in compliance with: The Supply of Machinery (Safety) Regulations, 2008, S.I. 2008/1597 (as amended), EN62841-1:2015 + A11:2022, EN IEC 62841-2-6:2020 +A11:2020.

These products conform to the following UK Regulations: Electromagnetic Compatibility Regulations, 2016, S.I.2016/1091 (as amended). The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, S.I. 2012/3032 (as amended).

Safety Information

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: ℹ️ Indicates a practice not related to personal injury which, if not avoided, may result in property damage.
• ⚡ Denotes risk of electric shock.
• ? Denotes risk of fire.

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.

1) Work area safety

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

2) 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 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 residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

3) 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 dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
• Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising 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 jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
• If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

Hammer Safety Warnings

• ? 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 the power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.

Safety Instructions When Using Long Drill Bits with Rotary Hammers

• Always start drilling at low speed and with the bit tip in contact with the workpiece. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
• Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits can bend causing breakage or loss of control, resulting in personal injury.

Additional Safety Instructions for Rotary Hammer Drills

• Use clamps or other practical way to secure and support the workpiece to a stable platform. Holding the work by hand or 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. It is recommended that the side handle be used at all times. 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. Tighten the side handle securely before use.
• 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. It should be done by an authorized specialist. Improperly reconditioned bits could cause injury.
• Wear gloves when operating tool or 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.
• 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.
• Keep the power cord away from the rotating bit. Do not wrap the cord around any part of your body. An electric cord wrapped around a spinning bit may cause personal injury and loss of control.
• When working above the floor, make sure that the area below is clear. Falling parts can cause injuries to bystanders.
• WARNING: We recommend the use of a residual current device with a residual current rating of 30mA or less.

Reducing Dust Exposure

Before starting work, check the hazard class of the dust that will be produced when working.

WARNING: Dust can be harmful to health. Touching or breathing of some dust created during the work process by using a power tool and other construction activities contains chemicals, mineral or particles known to cause respiratory infections, allergic reactions, cancer, birth defects or other reproductive harm of the user or bystanders.

• Such dusts can be generated, for example, when working on hardwoods such as beech or oak, lead based paint, on concrete, masonry or stones containing quartz.
• Material containing asbestos may be handled only by specialists.
• Observe the relevant regulations in your country for the materials to be worked on.
• Use a dust extractor or extraction system with an officially approved protection class in compliance with the locally applicable dust protection regulations and suitable for the material to be worked on.
• Capture the resulting dust particles directly at the source and avoid deposits in the surrounding area. Use suitable extraction accessories for this purpose.

Additional measures:

• Make sure that the workplace is well ventilated.
• Wear a respirator appropriate for the type of dust generated.

Residual Risks

The following risks are inherent to the use of rotary hammers:

• Injuries caused by touching the rotating parts or hot parts of the tool.
• In spite of the application of the relevant safety regulations and the implementation of safety devices, certain residual risks cannot be avoided. These are:
• Impairment of hearing.
• Risk of squeezing fingers when changing the accessory.
• Health hazards caused by breathing dust developed when working in concrete and/or masonry.
• Risk of personal injury due to flying particles.
• Risk of burns due to accessories becoming hot during operation.
• Risk of personal injury due to prolonged use.

Electrical Safety

The electric motor has been designed for one voltage only. Always check that the power supply corresponds to the voltage on the rating plate.

Your DEWALT tool is double insulated in accordance with EN62841; therefore no earth wire is required.

WARNING: 115 V units have to be operated via a fail-safe isolating transformer with an earth screen between the primary and secondary winding.

If the supply cord is damaged, it must be replaced only by DEWALT or an authorised service organisation.

Mains Plug Replacement (U.K. & Ireland Only)

If a new mains plug needs to be fitted:

• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in the plug.
• Connect the blue lead to the neutral terminal.

WARNING: No connection is to be made to the earth terminal. Follow the fitting instructions supplied with good quality plugs. Recommended fuse: 13 A.

Using an Extension Cable

If an extension cable is required, use an approved 3-core extension cable suitable for the power input of this tool (see Technical Data). The minimum conductor size is 1.5 mm²; the maximum length is 30 m. When using a cable reel, always unwind the cable completely.

Operation

Instructions for Use

WARNING: Always observe the safety instructions and applicable regulations.

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. Be sure the trigger switch is in the OFF position. An accidental start-up can cause injury.

Proper Hand Position (Fig. D)

Figure D demonstrates the proper hand position for operating the rotary hammer, emphasizing the need for a firm grip with both hands: one on the main handle (5) and the other on the side handle (2) for maximum control and anticipation of sudden reactions.

❗ 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.

Operation Modes (Fig. A)

Figure A illustrates the rotary hammer with various components labeled. Key components include: 1. Trigger switch, 2. Side handle, 3. Front Barrel (Collar), 4. Mode selector switch, 5. Main handle, 6. Bit holder, 7. Locking sleeve, 8. Lock-on switch, 9. Electronic speed and impact control dial, 10. Red anti-rotation system indicator LED, 11. Yellow brushwear indicator LED, 12. DEWALT tool tag mounting holes, 13. Date code position. It also shows an inset for the date code and a close-up of the mode selector switch.

WARNING: Do not select the operating mode when the tool is running.

Your tool is equipped with a mode selector switch (4) to select the mode appropriate to desired operation.

To Select an Operating Mode:

• Rotate the mode selector dial (4) to align the arrow with the symbol corresponding with the desired mode.
• NOTE: The mode selector switch (4) must be in rotary drilling, rotary hammering or hammering only mode at all times. There are no operable positions in between. It may be necessary to briefly run the motor after having changed from 'hammering only' to 'rotary' modes in order to align the gears.

Indexing the Chisel Position (Fig. A)

The chisel can be indexed and locked into 24 different positions.

1. Rotate the mode selector switch (4) until it points towards the position.
2. Rotate the chisel in the desired position.
3. Set the mode selector switch (4) to the "hammering only" position.
4. Twist the chisel until it locks in position.

Performing an Application (Fig. A)

WARNING: TO REDUCE THE RISK OF PERSONAL INJURY, ALWAYS ensure workpiece is anchored or clamped firmly. If drilling thin material, use a wood "backup" block to prevent damage to the material.

WARNING: Always wait until the motor has come to a complete standstill before changing the direction of rotation.

Switching On and Off (Fig. A)

To turn the tool on, depress the trigger switch (1).

To stop the tool, release the trigger switch.

Drilling with a Solid Bit (Fig. A)

1. Insert the appropriate drill bit.
2. Set the mode selector switch (4) to the hammerdrilling position.
3. Set the electronic speed and impact control dial (9).
4. Fit and adjust the side handle (2).
5. Mark the spot where the hole is to be drilled.
6. Place the drill bit on the spot and switch on the tool.
7. Always switch off the tool when work is finished and before unplugging.

Drilling with a Core Bit (Fig. A)

1. Insert the appropriate core bit.
2. Assemble the centerdrill into the core bit.
3. Set the mode selector switch (4) to the hammerdrilling position.
4. Turn the electronic speed and impact control dial (9) to a medium or high speed setting.
5. Fit and adjust the side handle (2).
6. Place the centerdrill on the spot and switch on the tool. Drill until the core penetrates into the concrete approximately 1 cm.
7. Stop the tool and remove the centerdrill. Place the core bit back into the hole and continue drilling.
8. When drilling through a structure thicker than the depth of the core bit, break away the round cylinder of concrete or core inside the bit at regular intervals. To avoid unwanted breaking away of concrete around the hole, first drill a hole the diameter of the centerdrill completely through the structure. Then drill the cored hole halfway from each side.
9. Always turn the tool off when work is finished and before unplugging.

Chipping and Chiselling (Fig. A)

1. Insert the appropriate chisel and rotate it by hand to lock it into one of 24 positions.
2. Set the mode selector switch (4) to the 'hammering only' position.
3. Set the electronic speed and impact control dial (9).
4. Fit and adjust the side handle (2).
5. Turn the tool on and start working.
6. Always turn the tool off when work is finished and before unplugging.

Assembly and Adjustments

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. Be sure the trigger switch is in the OFF position. An accidental start-up can cause injury.

Side Handle (Fig. A, B)

WARNING: To reduce the risk of personal injury, ALWAYS operate the tool with the side handle 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 maximise control.

Figure B details the assembly of the side handle. It shows how to widen the ring opening of the side handle (2) by rotating it anti-clockwise, slide it onto the tool's nose, and then lock it in place by tightening clockwise.

The side handle (2) clamps to the front of the gear case and may be rotated 360° to permit right- or left-hand use.

Mounting the Straight Side Handle (Fig. B)

1. Widen the ring opening of the side handle (2) by rotating it anti-clockwise.
2. Slide the assembly onto the nose of the tool, through the steel ring (14) and onto the front barrel/collar (3), past the chisel holder and sleeve.
3. Rotate the side handle assembly to the desired position. For hammerdrilling horizontally with a heavy drill bit, place the side handle assembly at an angle of approximately 20° to the tool for optimum control.
4. Lock the side handle mounting assembly in place by securely tightening the side handle (2) rotating it clockwise so that the assembly will not rotate.

Bit and Bit Holder

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.

The hammerdrill can be fitted with different bits depending on the desired application. Use sharp drill bits only.

Inserting and Removing SDS max® Accessories (Fig. C)

Figure C illustrates the process of inserting and removing SDS max® accessories. It shows cleaning the bit shank, pulling back the locking sleeve (7), inserting the bit, turning it slightly to lock, and checking for proper engagement. It also shows the bit holder (6).

This machine uses SDS max® bits and chisels (refer to the inset in Figure C for a cross-section of an SDS max® bit shank).

1. Clean the bit shank.
2. Pull back the locking sleeve (7) and insert the bit shank.
3. Turn the bit slightly until the sleeve snaps into position.
4. Pull on the bit to check if it is properly locked. The hammering function requires the bit to be able to move axially several centimetres when locked in the tool holder.
5. To remove a bit pull back the tool holder locking sleeve (7) and pull the bit out of the bit holder (6).

SDS plus® and SDS max® are registered trademarks of Robert Bosch GmbH.

Maintenance

Your DEWALT power tool has been designed to operate over a long period of time with a minimum of maintenance. Continuous satisfactory operation depends upon proper tool care and regular cleaning.

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. Be sure the trigger switch is in the OFF position. An accidental start-up can cause injury.

Lubrication

Your power tool requires no additional lubrication.

Cleaning

WARNING: Blow dirt and dust out of the main housing with dry air as often as dirt is seen collecting in and around the air vents. Wear approved eye protection and approved dust mask when performing this procedure.

WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the 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.

Optional 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.

Various types of SDS max® drill bits and chisels are available as an option. Accessories and attachments used must be regularly lubricated around the SDS max® fitment. Consult your dealer for further information on the appropriate accessories.

Protecting the Environment

Separate collection. Products and batteries marked with this symbol must not be disposed of with normal household waste.

Products and batteries contain materials that can be recovered or recycled reducing the demand for raw materials. Please recycle electrical products and batteries according to local provisions. Further information is available at www.2helpU.com.

Contact Information