Hilti DD110-D User Manual

DD 110-D

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Οδηγιες χρησεως

DD 110-D

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DD 110-D

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110-D

DD 110‐D diamond coring system

It is essential that the operating instructions are read before the machine is operated for the first time.

Always keep these operating instructions together with the machine.

Ensure that the operating instructions are with the machine when it is given to other persons.

Contents Page

1. General information 17

2. Description 18

3. Accessories 20

4. Technical data 20

5. Safety rules 21

6. Before use 24

7. Operation 26

8. Care and maintenance 28

9. Troubleshooting 29

10. Disposal 30

11. Manufacturer’s warranty 31

12. EC declaration of conformity 31

1. General information

1 These numbersrefer to the corresponding illustrations. The illustrations can be found on the fold‐out cover pages. Keep these pages open while studying the operating instructions. In these operating instructions, the designation “the machine” always refers to the DD 110‐D diamond core drilling machine.

Parts, operating controls and indicators 1

DD 110‑D diamond coring machine

Side handle

Gear selector

;

Gearing section

Motor

Carbon brush cover

Service indicator

(

On / off switch

)

Grip

Supply cord

Chuck

Optional: TPS

1.1 Safety notices and their meaning

DANGER

Draws attention to imminent danger that could lead to serious bodily injury or fatality.

WARNING

Draws attention to a potentially dangerous situation that could lead to serious personal injury or fatality.

CAUTION

Draws attention to a potentially dangerous situation that could lead to slight personal injury or damage to the equipment or other property.

NOTE

Draws attention to an instruction or other useful information.

1.2 Explanation of the pictograms and other information

Warning signs

General warning

Warning: electricity

Warning: hot

surface

Obligation signs

Wear eye

protection.

Wear a hard

hat.

Wear ear

protection.

Wear

protective

gloves.

Location of identification data on the machine

The type designation and serial number can be found on the type identification plate on the machine. Make a note of this data in your operating instructions and always refer to it when making an enquiry to your Hilti representative or service department.

Type:

Serial no.:

Wear

breathing

protection.

Wear safety

shoes.

Symbols

Read the

operating

instructions

before use.

Service indicator Return waste

Lock symbol Equipped with

material for

recycling.

theft

protection

system

2. Description

2.1 Use of the product as directed

The DD 110‑D is an electrically‐powered hand‐held diamond coring machine designed for drilling in masonry with dry‐cutting diamond core bits and diamond socket cutters. The machine is not suitable for drilling in concrete or reinforced concrete. Drilling into flammable materials (e.g. wood, magnesium) and/or materials that produce electrically‐conductive dust is not permissible. A suitable portable dust removal system, e.g. the Hilti VCU 40, VCU 40‐M or VCD 50 vacuum cleaner, should be used with the machine whenever possible. To avoid injury, use only genuine Hilti core bits and DD 110‐D accessories. Observe the safety rules and operating instructions for the accessories used. Observe the information printed in the operating instructions concerning operation, care and maintenance. The machine is designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel. This personnel must be informed of any special hazards that may be encountered. The machine and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used not as directed. The working environment may be as follows: construction site, workshop, renovation, conversion or new construction.

The machine may be operated only when connected to a power supply providing a voltage and frequency in compliance with the information given on its type identification plate. Working on materials hazardous to the health (e.g. asbestos) is not permissible. Modification of the machine or tampering with its parts is not permissible.

2.2 Use of the system with various items of equipment

Type of hole drilled Core bit diameters Drilling direction Material

Through‐holes 16…162 mm

(⁵⁄₈"...6¹⁄₂")

Blind holes / socket cutting 16…162 mm

(⁵⁄₈"...6¹⁄₂")

2.3 Gears and corresponding core bit diameters

Gear PCM core bits HDM core bits Speed under no load

1 42…162 mm

(1⁵⁄₈" ... 6¹⁄₂")

2 16…87 mm

2.4 TPS theft protection system (optional)

The machine may be optionally equipped with the TPS theft protection system. If equipped with this feature, the machine can be unlocked and made ready for operation only through use of the corresponding TPS key.

2.5 The items supplied as standard include:

1 Power tool with side handle and chuck 1 Operating instructions 1 Hilti toolbox or cardboard box

All directions Masonry (e.g.

sand‐lime block, brick)

All directions Masonry (e.g.

sand‐lime block, brick)

102…162 mm (4" ... 6¹⁄₂")

(⁵⁄₈" ... 3¹⁄₂")

650 r.p.m.

1,380 r.p.m.

2.6 Using extension cords

Use only extension cords of a type approved for the application and with conductors of adequate gauge.

Recommended minimum conductor cross section and max. cable lengths

Conductor cross section 1.5 mm² 2mm² 2.5 mm² 3.5 mm²

Mains voltage 100V Not recommen-

ded

Mains voltage 110‐120 V Not recommen-

ded

Mains voltage 220‐240 V 30 m 50 m

Do not use extension cords with 1.25 mm² conductors. Always use extension cords with an earth/ground conductor for machines equipped with a PRCD.

2.7 Using a generator or transformer

This machine may be powered by a generator or transformer when the following conditions are fulfilled: The unit must provide a power output in watts of at least twice the value printed on the type identification plate

Not recommended

30 m

40 m

on the machine. The operating voltage must remain within +5% and ‐15% of the rated voltage at all times, frequency must be in the 50 – 60 Hz range and never above 65 Hz, and the unit must be equipped with automatic voltage regulation and starting boost.

NOTE

Switching other machines or appliances on and off can cause undervoltage and/or overvoltage peaks which could damage the machine. Never operate other machines from the generator/transformer at the same time.

3. Accessories

TPS theft protection system with company card, company remote and TPS‑K key Dust removal system 315773

M16 chuck 315774 BI+ chuck 315791 G ¹/₂" chuck BT chuck 315793 Key chuck 315794 Keyless chuck 315795 M27 connection end for core bits BI+ connection end for socket cutters M27 connection end for core bits BI+ connection end for core bits Side handle Dust removal attachment with BI+ connection end

for core bits Dust removal attachment with M27 connection end

for core bits Dust removal attachment with BI+ connection end

for socket cutters Dust removal attachment with M27 connection end

for socket cutters Socket cutter hole‐starting aid BI+ socket cutter hole‐starting aid 209661

Option

315792

315805 315806 315807 315824 315825 315826

315827

315828

331621

281318

4. Technical data

Right of technical changes reserved.

Other information about the machine

Dimensions (L x W x H) 446 mm x 120 mm x 170 mm Weight in accordance with EPTA procedure 01/2003 5.1 kg Protection class II Protection class with PRCD

NOTE

The machine is available in various voltage ratings. Please refer to the machine’s type identification plate for details of its rated voltage and rated input power.

Rated voltage [V]

Mains frequency [Hz]

Rated power [W]

Rated current [A]

Rated speed under no load, 1st gear [r.p.m.]

Rated speed under no load, 2nd gear [r.p.m.]

Noise information (measured in accordance with EN 60745‑2‑1):

Typical A‐weighted sound power level 95 dB (A) Typical A‑weighted sound pressure level 84 dB (A) Uncertainty for the given sound level

Additional information in accordance with EN 60745‑1, triaxial vibration values (vibration vector sum)

Drilling in sand‐lime block (dry) with PCM core bit, (a

h, DD

Drilling in sand‐lime block (dry) with HDM core bit, (a

h, DD

Uncertainty (K) 1.5 m/s²

100 110 110 120 220 230 240

50…60 50 60 60 50/60 50…60 50

1,450 1,600 1,570 1,600 1,600 1,600

15 15.4 15 14.1 7.7 7.4 7.1

650 650 650 650 650 650 650

1,380 1,380 1,380 1,380 1,380 1,380 1,380

3 dB (A)

6 m/s²

)

4.5 m/s²

)

5. Safety rules

5.1 General safety rules

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.

5.1.1 Work area safety

a) Keep work area clean and well lit. Cluttered or

dark areas invite accidents.

b) Do not operate power tools in explosive atmo-

spheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks

which may ignite the dust or fumes.

c) Keep children and bystanders away while oper-

ating a power tool. Distractions can cause you to lose control.

5.1.2 Electrical safety

a) 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.

b) 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.

c) Do not expose power tools to rain or wet con-

ditions. Water entering a power tool will increase the risk of electric shock.

d) 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.

e) 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.

f) 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.

5.1.3 Personal safety

a) 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.

b) 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.

c) 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.

d) 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.

e) Do not overreach. Keep proper footing and bal-

ance at all times. This enables better control of the power tool in unexpected situations.

f) 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.

g) 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.

5.1.4 Power tool use and care

a) 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.

b) 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.

c) 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 prevent-

ive safety measures reduce the risk of starting the power tool accidentally.

d) 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.

e) 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.

f) Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

g) 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.

5.1.5 Service

a) 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.

5.2 Additional safety rules

5.2.1 Personal safety

a) Wear ear protectors. Exposure to noise can cause

hearing loss.

b) Use auxiliary handles supplied with the tool.

Loss of control can cause personal injury.

c) Hold power tools 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 shock the operator.

d) Always hold the machine securely with both

hands on the grips provided. Keep the grips dry, clean and free from oil and grease.

e) Respiratory protection must be worn if the ma-

chine is used without a dust extraction system for work that creates dust.

f) Improve the blood circulation in your fingers by

relaxing your hands and exercising your fingers during breaks between working.

g) Avoid touching rotating parts. Switch the power

tool on only after bringing it into position at the workpiece. Touching rotating parts, especially

rotating drill bits, discs or blades, etc. may lead to injury.

h) When working, always lead the supply cord, the

extension cord and the vacuum cleaner hose (if applicable) away from the machine to the rear.

This will reduce the risk of tripping and falling over the cord or hose while working.

5.2.2 Power tool use and care

a) Secure the workpiece. Use clamps or a vice

to secure the workpiece. The workpiece is thus

held more securely than by hand and both hands remain free to operate the machine.

b) Check that the core bits used are compatible with

the chuck system and that they are secured in the chuck correctly.

c) Switch the machine off and unplug the supply

cord in the event of a power failure or interruption in the electric supply. This will prevent accidental

restarting when the electric power returns.

5.2.3 Electrical safety

a) Before beginning work, check the working area

(e.g. using a metal detector) to ensure that no concealed electric cables or gas and water pipes are present. External metal parts of the machine

may become live, for example, when an electric cable is damaged accidentally. This presents a serious risk of electric shock.

b) Test the PRCD each time before use. c) Check the machine’s supply cord at regular inter-

vals and have it replaced by a qualified specialist if found to be damaged. Check extension cords at regular intervals and replace them if found to be damaged. Do not touch the supply cord or extension cord if it is damaged while working. Disconnect the supply cord plug from the power outlet. Damaged supply cords or extension cords

present a risk of electric shock.

d) When working outdoors with an electric tool

or machine, check to ensure that the tool or machine is connected to the electric supply by way of a ground fault circuit interrupter (PRCD) with a rating of max. 30 mA (tripping current).

Use of a ground fault circuit interrupter reduces the risk of electric shock.

e) Use of a ground fault circuit interrupter (PRCD

residual current device) with a maximum tripping current of 30 mA is recommended.

5.2.4 Work area

a) Ensure that the workplace is well ventilated.

Exposure to dust at a poorly ventilated workplace may result in damage to the health.

b) Connect a dust removal system if the work cre-

ates dust. Drilling in materials hazardous to the health (e.g. asbestos) is not permissible.

5.2.5 Personal protective equipment

The operator and bystanders must wear suitable protective glasses, a hard hat, ear protectors, pro-

6. Before use

CAUTION The mains voltage must comply with the specification given on the type identification plate. Ensure that the power tool is disconnected from the electric supply.

DANGER When drilling through walls, cover the area behind the wall, as material or the core may fall out on the other side of the wall. When drilling through ceilings, secure (cover) the area below as drilled material or the core may drop out and fall down.

CAUTION Do not transport the machine while it is connected to the electric supply. Disconnect the supply cord plug from the power outlet.

6.1 Positioning the side handle 2

CAUTION Disconnect the supply cord plug from the power outlet.

1. Release the side handle clamping band by turning the handle counterclockwise.

2. Pivot the side handle into the desired position.

3. Secure the side handle by turning the grip clockwise.

tective gloves and safety footwear while the machine is in use. Respiratory protection must be worn if the work creates dust.

6.2 Fitting the diamond core bit 3

CAUTION To avoid injury, use only genuine Hilti core bits and DD 110‐D accessories. If using a machine with a BI+ chuck, only genuine Hilti core bits may be used with it.

CAUTION

The core bit may get hot during use or during sharpening. There is a risk of burning your hands. Wear

protective gloves when changing the core bit.

CAUTION Disconnect the supply cord plug from the power outlet.

CAUTION Check that the hole‐starting aid is securely positioned in the core bit.

CAUTION When using the hole‐starting aid, allow the machine to run only when the hole‐starting aid is in contact with the working surface.

NOTE

A 30 mm AF open‐end wrench is used to operate an M16, M27, BT or G¹/₂" chuck and a 27 mm AF

open‐end wrench is used to grip and hold the drive shaft.

The chuck, the adapter and the cutting tool must be clean and free of dirt and dust.

1. Open the chuck (BI+) by turning it in the direction of the open brackets symbol.

2. Push the diamond core bit into the chuck (BI+) from the front, turning the core bit until the teeth in the chuck engage with the core bit.

3. Close the chuck (BI+) by turning it in the direction of the closed brackets symbol.

4. Check that the diamond core bit is securely mounted in the chuck by pulling on the core bit and attempting to move it from side to side.

6.4 Selecting the speed 5

CAUTION Do not change gear while the machine is running. Wait for the spindle to come to a halt.

Set the selector switch according to the core bit diameter used. Turn the selector switch to the recommended setting (see section “Description”) while rotating the core bit by hand.

6.5 Removing the diamond core bit

6.3 Fitting the dust removal attachment (optional)

6.3.1 Socket cutter 4

1. Push the hole‐starting aid, point first, as far as it will go, into the connection end for socket cutters with dust removal.

2. Fit the connection end into the chuck in accordance with the instructions for fitting a diamond core bit.

3. Fit the socket cutter onto the connection end.

4. Push the dust removal attachment forward until it is in contact with the socket cutter and then secure it in this position by sliding the locking ring toward the socket cutter.

6.3.2 Core bit

1. Fit the connection end for core bits with dust removal into the chuck in accordance with the instructions for fitting a diamond core bit.

2. Fit the core bit onto the connection end.

CAUTION

The core bit may get hot during use or during sharpening. There is a risk of burning your hands. Wear

protective gloves when changing the core bit.

CAUTION Disconnect the supply cord plug from the power outlet.

NOTE

If the machine is equipped with an M16, M27, BT or G¹/₂" chuck, hold the drive shaft securely with a 27 mm AF open‐end wrench and use a suitable open‐end wrench to release the core bit.

1. Open the chuck (BI+) by turning it in the direction of the open brackets symbol.

2. Pull the sleeve on the chuck in the direction of the arrow towards the machine. This releases the core bit.

3. Remove the core bit.

7. Operation

WARNING Make sure that the supply cord does not come into contact with rotating parts.

DANGER When working with slotted core bits, take care to keep your fingers out of the slots.

CAUTION

The machine and the drilling operation generate noise. Wear ear protectors. Excessive noise may damage the hearing.

CAUTION

The drilling operation may create dangerous splinters. Splintering material presents a risk of injury to the eyes and body. Wear eye protection and a hard hat.

CAUTION

In accordance with the applications for which it is designed, the machine produces a high torque. Al-

ways use the side handle and hold the machine with both hands. The user must be prepared for sudden

sticking and stalling of the cutting tool.

DANGER The operator must be prepared for sudden sticking and stalling of the cutting tool and must therefore have an absolutely secure stance with both feet.

7.1 TPS theft protection system (optional)

NOTE

The machine may be equipped with the optional theft protection system. If the machine is equipped with this feature, it can be unlocked and made ready for operation only with the corresponding TPS key.

7.1.1 Unlocking the machine

1. Checkthat the machine is connected to the electric supply. The yellow theft protection indicator LED blinks. The machine is now ready to receive the signal from the TPS key.

2. Hold the TPS key or the TPS watch strap buckle against the lock symbol. The machine is unlocked as soon as the yellow theft protection indicator LED no longer lights. NOTE If, for example, the electric supply is briefly interrupted due to a power failure or disconnected when moving to a different workplace, the machine remains ready for operation for approx. 20 minutes. In the event of a longer interruption, the TPS key must be used again to unlock the machine.

7.1.2 Activation of the theft protection system for the machine

NOTE

Further information on activation and use of the theft protection system can be found in the operating instructions for the theft protection system.

7.2 Switching on and checking the PRCD (if

fitted)

1. Plug the machine’s supply cord into an earthed/ grounded power outlet.

2. Press the “Reset” button on the PRCD ground fault circuit interrupter. The indicator must light.

3. Press the “Test” button on the PRCD ground fault circuit interrupter. The indicator must go out.

4. WARNING If the indicator continues to light,

further operation of the machine is not permissible. Have the machine repaired by trained

personnel using genuine Hilti spare parts. Press the “Reset” button on the PRCD ground fault circuit interrupter. The indicator must light.

7.3 Working with a dust removal system

CAUTION When working, always lead the vacuum cleaner hose away to the rear of the machine so that it cannot come into contact with the core bit.

7.3.2 Vacuum cleaner without power outlet for power tools

CAUTION Do not use slotted core bits when working with a dust removal system.

CAUTION Please read the operating instructions for the vacuum cleaner for information about disposal of the material collected.

NOTE

To avoid electrostatic effects, use an anti‐static vacuum cleaner.

7.3.1 Vacuum cleaner with power outlet for power tools 6

CAUTION Do not use slotted core bits when working with a dust removal system.

NOTE

The optional operations are to be carried out when the two‐part hole starting aid is used.

1. Secure the side handle in the desired position.

2. Fit the hole‐starting aid (optional operation).

3. Plug the machine’s supply cord into the power outlet on the vacuum cleaner.

4. Plug the vacuum cleaner’s supply cord into the power outlet and press the “Reset” button (if there is one) on the PRCD.

5. Position the machine at the point where the hole is to be drilled (hole center).

6. Press the on / off switch on the power tool. NOTE The vacuum cleaner starts with a delay after the power tool is switched on. After switching the power tool off, the vacuum cleaner continues to run for a short time before switching itself off.

7. When beginning drilling, apply only light pressure until the core bit has centered itself and then increase the pressure. Drill to a depth of 3‐5mm to form a guide kerf (optional operation).

8. Switch the machine off by releasing the on / off switch and then wait until the core bit has stopped rotating (optional operation).

9. Remove the hole‐starting aid from the core bit (optional operation).

10. Position the core bit in the guide kerf and then press the on / off switch to continue drilling (optional operation).

NOTE

The optional operations are to be carried out when the two‐part hole starting aid is used.

1. Secure the side handle in the desired position.

2. Fit the hole‐starting aid (optional operation).

3. Plug the vacuum cleaner’s supply cord into the power outlet and switch the vacuum cleaner on.

4. Plug the machine’s supply cord into the power outlet and press the “Reset” button (if there is one) on the PRCD.

5. Press the on / off switch on the power tool.

6. When beginning drilling, apply only light pressure until the core bit has centered itself and then increase the pressure. Drill to a depth of 3‐5mm to form a guide kerf (optional operation).

7. Switch the machine off by releasing the on / off switch and then wait until the core bit has stopped rotating (optional operation).

8. Remove the hole‐starting aid from the core bit (optional operation).

9. Position the core bit in the guide kerf and then press the on / off switch to continue drilling (optional operation).

10. Allow the vacuum cleaner to run for a few seconds after switching off the machine in order to ensure that the remaining dust is removed.

7.4 Working without dust removal

NOTE

Use slotted core bits when drilling without a dust removal system.

NOTE

Remove the dust removal attachment or secure it to prevent rotation.

NOTE

The optional operations are to be carried out when

‐part hole starting aid is used.

the two

CAUTION Unplug the supply cord from the power outlet before removing the core.

DANGER Wear respiratory protection.

NOTE

Dust is released in all directions. Drilling without a dust removal system, especially overhead drilling, is very unpleasant and optimum performance is not achieved. Overhead drilling without use of dust removal system is therefore not recommended. For dry coring it is recommended that the dust removal attachment and a suitable vacuum cleaner are always used.

1. Secure the side handle in the desired position.

2. Fit the hole‐starting aid (optional operation).

3. Plug the supply cord into the power outlet and press the “Reset” button (if there is one) on the PRCD.

4. Position the machine at the point where the hole is to be drilled (hole center).

5. Press the on / off switch on the power tool.

6. When beginning drilling, apply only light pressure until the core bit has centered itself and then increase the pressure. Drill to a depth of 3‐5mm to form a guide kerf (optional operation).

7. Switch the machine off by releasing the on / off switch and then wait until the core bit has stopped rotating (optional operation).

8. Remove the hole‐starting aid from the core bit (optional operation).

9. Position the core bit in the guide kerf and then press the on / off switch to continue drilling (optional operation).

7.5 Switching off and dismantling the system

CAUTION Wear protective gloves when changing cutting tools as they get hot during use.

CAUTION

The core bit will be full of dust and drilled‐out material.

Work from a secure stance and make sure you are ready to support the additional weight of the drilled‐out material.

NOTE

The power tool should preferably be transported in the Hilti toolbox.

1. Release the on / off switch on the power tool and slowly pull the core bit out of the hole.

2. Switch off the vacuum cleaner if you are using one.

3. Check that the machine is disconnected from the electric supply.

4. Remove the core if necessary.

5. Remove the core bit.

7.6 Transport

CAUTION Check that the machine is disconnected from the electric supply.

NOTE

Store and transport the power tool in its toolbox when possible.

8. Care and maintenance

CAUTION Disconnect the supply cord plug from the power outlet.

8.1 Care of cutting tools and metal parts

Remove any dirt adhering to the surface of cutting tools, the chuck and drive spindle and protect their surfaces from corrosion by rubbing them with an oily cloth from time to time.

8.2 Care of the machine

The outer casing of the machine is made from impact‐ resistant plastic. Never operate the machine when the ventilation slots are blocked. Clean the ventilation slots carefully using a dry brush. Do not permit foreign objects to enter the interior of the machine. Clean the outside of the machine at regular intervals with a slightly damp

cloth. Do not use a spray, steam pressure cleaning equipment or running water for cleaning. This will negatively affect the electrical safety of the machine. Always keep the grip surfaces of the machine free from oil and grease. Do not use cleaning agents which contain silicone.

8.3 Maintenance

WARNING Repairs to the electrical section of the machine may be carried out only by trained electrical specialists.

Check all external parts of the power tool for damage at regular intervals and check that all controls operate faultlessly. Do not operate the power tool if parts are damaged or when the controls do not function faultlessly. If necessary, the power tool should be repaired by Hilti Service.

8.4 Replacing the carbon brushes 7

NOTE

The indicator lamp with wrench symbol lights up when the carbon brushes need to be replaced.

DANGER The machine may be operated, serviced and repaired only by trained, authorized personnel. This personnel must be specially informed of any pos-

sible hazards. Failure to observe the following in-

structions may result in contact with dangerous electric voltage.

1. Disconnect the machine from the electric supply.

2. Open the carbon brush covers on the left‐hand and right‐hand side of the motor.

3. Take note of how the carbon brushes are fitted and how the conductors are positioned. Remove the worn carbon brushes from the machine.

4. Fit the new carbon brushes just as the old ones were fitted (spare part numbers: carbon brushes AO ML 100‑127 V: 39577; carbon brushes AO ML 220‑240 V: 39576). NOTE Take care to avoid damaging the insulation on the indicator lead as you insert the brushes.

5. Close the carbon brush covers on the left‐hand and right‐hand side of the motor and tighten the retaining screws. NOTE Once the carbon brushes have been replaced, the indicator lamp no longer lights when the machine is reconnected to the electric supply.

8.5 Checking the power tool after care and maintenance

After carrying out care and maintenance, check that all protective and safety devices are fitted and that they function faultlessly.

9. Troubleshooting

Fault Possible cause Remedy

The machine doesn’t start.

Interruption in the electric supply. Plug in another electric appliance

and check whether it works. Check the plug connections, supply cords and extension cords, PRCD and electric supply.

Carbon brush automatic cut‐out activated.

On/off switch defective.

Interruption in the electric supply.

The electronics are defective.

Replace the carbon brushes. See section: 8.4 Replacing the carbon brushes 7 The machine should be repaired by Hilti Service.

Check the supply cord and vacuum cleaner (if applicable), the extension cord, supply cord plug and PRCD, and have them replaced by a qualified electrician if necessary.

The machine should be repaired by Hilti Service.

Fault Possible cause Remedy

The service indicator lights. The carbon brushes are worn. Replace the carbon brushes.

See section: 8.4 Replacing the carbon brushes 7

The machine doesn’t start and the indicator lamp blinks

yellow. The motor runs. The diamond

core bit doesn’t rotate.

The rate of drilling progress decreases.

The diamond core bit cannot be fitted into the chuck.

Excessive play in the drilling system.

The power tool has not been unlocked (tools with optional theft protection system).

Gear selector doesn’t engage. Move the gear selector until felt to

The gearing is defective.

The diamond core bit is polished.

The core is stuck in the core bit. Remove the core. Maximum drilling depth is reached. Remove the core and use a core bit

The diamond core bit is damaged.

The slip clutch is disengaging prematurely or slipping.

Drilling progress is prevented by an accumulation of dust.

The core bit connection end or chuck is dirty or damaged.

The core bit is not screwed securely into the chuck.

The core bit connection end is defective.

Use the TPS key to unlock the power tool.

engage. The machine should be repaired by

Hilti Service. Sharpen the core bit by drilling into

a sharpening plate. The wrong type of core bit has been

used. Seek advice from Hilti.

extension. Check the diamond core bit for

damage and replace it if necessary. The machine should be repaired by

Hilti Service. Use a suitable vacuum cleaner.

Clean the connection end /chuck or replace if necessary.

Tighten it securely.

Check the connection end and replace it if necessary.

10. Disposal

Most of the materials from which Hilti machines or appliances are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements for taking back old machines and appliances for recycling. Ask Hilti customer service or your Hilti representative for further information.

For EC countries only Disposal of electric appliances together with household waste is not permissible. In observance of European Directive 2002/96/EC on waste electrical and electronic equipment and

its implementation in accordance with national law, electric appliances that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

11. Manufacturer’s warranty

Hilti warrants that the tool supplied is free of defects in material and workmanship. This warranty is valid so long as the tool is operated and handled correctly, cleaned and serviced properly and in accordance with the Hilti Operating Instructions, and the technical system is maintained. This means that only original Hilti consumables, components and spare parts may be used in the tool.

This warranty provides the free‐of‐charge repair or replacement of defective parts only over the entire lifespan of the tool. Parts requiring repair or replacement as a result of normal wear and tear are not covered by this warranty.

Additional claims are excluded, unless stringent national rules prohibit such exclusion. In particular, Hilti is not obligated for direct, indirect, incidental or consequential damages, losses or expenses in connection with, or by reason of, the use of, or inability to use the tool for any purpose. Implied warranties of merchantability or fitness for a particular purpose are specifically excluded.

For repair or replacement, send the tool or related parts immediately upon discovery of the defect to the address of the local Hilti marketing organization provided.

This constitutes Hilti’s entire obligation with regard to warranty and supersedes all prior or contemporaneous comments and oral or written agreements concerning warranties.

12. EC declaration of conformity

Designation: diamond coring system Type: DD 110‐D Year of design:

We declare, on our sole responsibility, that this product complies with the following directives and standards: 98/37/EC, 2004/108/EC, EN 55014‑1, EN 55014‑2, EN 60745‑1, EN 60745‑2‑1, EN 61000‑3‑2, EN 61000‑3‑3.

2007

Hilti Corporation

Peter Cavada Dr. Ivo Celi

Head of BU Quality and Process Management Business Area Electric Tools & Accessories 04 2007 04 2007

Senior Vice President

Business Unit Diamond

*274860*

274860

Hilti Corporation

LI-9494 Schaan Tel.: +423/2342111 Fax: +423 /2342965 www.hilti.com

274860 / A

Hilti DD110-D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual