BOSCH GBH 4-32 DFR PROFESSIONAL (01) PDF DOCUMENT

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.

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 and 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.

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.

Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.

Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

Disconnect the plug from the power source and/or 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.

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. 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.

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 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.

Use suitable detectors to determine if utility lines are hidden in the work area or call the local utility company for assistance. Contact with electric lines can lead to fire and electric shock. Damaging a gas line can lead to explosion. Penetrating a water line causes property damage or may cause an electric shock.

When working with the machine, always hold it firmly with both hands and provide for a secure stance. The power tool is guided more secure with both hands.

Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more secure than by hand.

Always wait until the machine has come to a complete stop before placing it down. The tool insert can jam and lead to loss of control over the power tool.

The machine is intended for hammer drilling in concrete, brick and stone, as well as for light chiselling work. It is also suitable for drilling without impact in wood, metal, ceramic and plastic. Machines with electronic control and right/left rotation are also suitable for screwdriving.

The numbering of the product features refers to the illustration of the machine on the graphics page.

1. SDS-plus tool holder

2. Dust protection cap

3. Locking sleeve

4. Lock ring of the tool holder

5. Mode selector switch

6. Vibration damper

7. On/Off switch

8. Rotational direction switch

9. Button for depth stop adjustment

10. Auxiliary handle (insulated gripping surface)

11. Depth stop

12. Handle (insulated gripping surface)

13. Quick change keyless chuck*

14. Front sleeve of the quick change keyless chuck*

15. Retaining ring of the quick change keyless chuck*

16. Extraction sleeve of the dust extraction attachment*

17. Clamping screw for the dust extraction attachment*

18. Depth stop of the dust extraction attachment*

19. Telescopic pipe of the dust extraction attachment*

20. Wing bolt of the dust extraction attachment*

21. Guide pipe of the dust extraction attachment*

*Accessories shown or described are not part of the standard delivery scope of the product.

The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.

Operate your machine only with the auxiliary handle 10.

The auxiliary handle 10 can be set to any position for a secure and low-fatigue working posture.

Turn the bottom part of the auxiliary handle 10 in counter-clockwise direction and swivel the auxiliary handle 10 to the desired position. Then retighten the bottom part of the auxiliary handle 10 by turning in clockwise direction.

The required drilling depth X can be set with the depth stop 11.

1. Press the button for the depth stop adjustment 9 and insert the depth stop into the auxiliary handle 10.

2. Insert the SDS-plus drilling tool to the stop into the SDS-plus tool holder 1. Otherwise, the movability of the SDS-plus drilling tool can lead to incorrect adjustment of the drilling depth.

3. Pull out the depth stop until the distance between the tip of the drill bit and the tip of the depth stop correspond with the desired drilling depth X.

The knurled surface of the depth stop 11 must face downward.

Before any work on the machine itself, pull the mains plug. The SDS-plus tool holder 1 can easily be exchanged against the quick change keyless chuck 13.

Dismounting the SDS-plus Tool Holder or the Quick change keyless chuck:

Pull the lock ring of the tool holder 4 firmly in the direction of the arrow, hold it in this position and pull off the tool holder 1 or the keyless replacement chuck 13 toward the front. After removing, protect the tool holder 1 or the quick change keyless chuck 13 against contamination.

Mounting the SDS-plus Tool Holder or the Quick change keyless chuck:

Use only model-specific original equipment. Only quick-change chucks with two identification grooves are permitted. Grasp the tool holder 1 or the keyless replacement chuck 13 completely with your hand. Slide the tool holder 1 or the keyless replacement chuck 13 with a turning motion onto the drill chuck mounting until a distinct latching noise is heard. The tool holder is automatically locked. Check the locking effect by pulling the tool holder.

The dust protection cap 2 largely prevents the entry of drilling dust into the tool holder during operation. When inserting the tool, take care that the dust protection cap 2 is not damaged. A damaged dust protection cap should be changed immediately. It is recommended to have this carried out by an after-sales service.

Inserting SDS-plus Drilling Tools:

1. Clean and lightly grease the shank end of the tool.

2. Insert the tool in a twisting manner into the tool holder until it latches itself.

3. Check the latching by pulling the tool.

Removing SDS-plus Drilling Tools:

Push back the locking sleeve 3 and remove the tool.

Note: Do not use tools without SDS-plus for hammer drilling or chiselling. Tools without SDS-plus and their drill chucks are damaged by hammer drilling or chiselling.

Inserting Drilling Tools without SDS-plus:

1. Insert the quick change keyless chuck 13.

2. Firmly hold the retaining ring of the quick change keyless chuck 13. Open the quick change keyless chuck by turning the front sleeve in the direction of the symbol “RELEASE, AUF”.

3. Insert the drilling tool into the quick change keyless chuck 13. Firmly hold the retaining ring of the quick change keyless chuck 13 and turn the front sleeve in the direction of the symbol “GRIP, ZU”.

4. Check the tight seating by pulling the tool.

5. Turn the mode selector switch 5 to the “drilling” position.

Removing Drilling Tools without SDS-plus:

Firmly hold the retaining ring of the quick change keyless chuck 13. Open the quick change keyless chuck by turning the front sleeve in the direction of the symbol “RELEASE, AUF”. Remove the drilling tool.

Dusts from materials such as lead-containing coatings, some wood types, minerals and metal can be harmful to one’s health. Touching or breathing-in the dusts can cause allergic reactions and/or lead to respiratory infections of the user or bystanders. Prevent dust accumulation at the workplace. Dusts can easily ignite.

Mounting the Dust Extraction Attachment:

For dust extraction, the dust extraction attachment (accessory) is required. The vacuum cleaner must be suitable for the material being worked.

1. Press the button for depth stop adjustment 9 and remove the depth stop 11.

2. Press button 9 again and insert the dust extraction attachment into the auxiliary handle 10 from the front.

3. Connect an extraction hose (diameter 19 mm, accessory) to the extraction sleeve 16 of the dust extraction attachment.

1. Insert the SDS-plus drilling tool to the stop into the SDS-plus tool holder 1.

2. Loosen the wing bolt 20 on the dust extraction attachment.

3. Without switching the power tool on, apply it firmly to the drilling location. The SDS-plus drilling tool must face against the surface.

4. Position the guide pipe 21 of the dust extraction attachment in its holding fixture in such a manner that the head of the dust extraction attachment faces against the surface to be drilled. Do not slide the guide pipe 21 further over the telescopic pipe 19 than required, so that as much as possible of the scale on the telescopic pipe remains visible.

5. Retighten the wing bolt 20 again. Loosen the clamping screw 17 on the depth stop of the dust extraction attachment.

6. Move the depth stop 18 on the telescopic pipe 19 in such a manner that the clearance X corresponds with the required drilling depth.

7. Tighten the clamping screw 17 in this position.

The operating mode of the power tool is selected with the mode selector switch 5. Change the operating mode only when the machine is switched off, otherwise, the machine can be damaged. Turn the mode selector switch 5 to the requested position.

Drilling Position: For drilling without impact in wood, metal, ceramic and plastic as well as for screwdriving.

Hammer Drilling Position: For hammer drilling in concrete or stone. When the drilling tool does not immediately rotate upon switching on, allow the machine to run slowly until the drilling tool rotates.

Vario-Lock Position: For adjustment of the chiselling position.

Chiselling Position: For chiselling.

Actuate the rotational direction switch 8 only when the machine is at a standstill.

Right rotation: Turn the rotational direction switch 8 to the stop in the indicated position.

Left rotation: Turn the rotational direction switch 8 to the stop in the indicated position.

Set the direction of rotation for hammer drilling, drilling and chiselling always to right rotation.

To start the machine, press the On/Off switch 7 and keep it pressed.

To switch off the machine, release the On/Off switch 7.

The speed/impact rate of the switched on power tool can be variably adjusted, depending on how far the On/Off switch 7 is pressed.

Light pressure on the On/Off switch 7 results in low speed/impact rate. Further pressure on the switch increases the speed/impact rate.

If the tool insert becomes caught or jammed, the drive to the drill spindle is interrupted. Because of the forces that occur, always hold the power tool firmly with both hands and provide for a secure stance.

If the power tool jams, switch the machine off and loosen the tool insert. When switching the machine on with the drilling tool jammed, high reaction torques can occur.

The chisel can be locked in 13 positions. In this manner, the optimum working position can be set for each application.

1. Insert the chisel into the tool holder.

2. Turn the mode selector switch 5 to the “Vario-Lock” position.

3. Turn the tool holder to the desired chiselling position.

4. Turn the mode selector switch 5 to the “chiselling” position. The tool holder is now locked.

For chiselling, set the rotation direction to right rotation.

Before any work on the machine itself, pull the mains plug.

For safe and proper working, always keep the machine and ventilation slots clean.

A damaged dust protection cap should be changed immediately. It is recommended to have this carried out by an after-sales service.

If the replacement of the supply cord is necessary, this has to be done by Bosch or an authorized Bosch service agent in order to avoid a safety hazard.