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DD 350
English
Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
1 Information about the documentation
1.1About this documentation
•Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product.
•Observe the safety instructions and warnings in this documentation and on the product.
•Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons.
1.2Explanation of signs used
1.2.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words are used in combination with a symbol:
DANGER! Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING! Draws attention to a potential hazard that could lead to serious personal injury or fatality.
CAUTION! Draws attention to a potentially dangerous situation that could lead to minor personal injury or damage to the equipment or other property.
1.2.2 Symbols in the documentation
The following symbols are used in this document:
Read the operating instructions before use
Instructions for use and other useful information
1.2.3 Symbols in the illustrations
The following symbols are used in illustrations:
These numbers refer to the corresponding illustrations found at the beginning of these operating instructions.
The numbering reflects the sequence of operations shown in the illustrations and may deviate from the steps described in the text.
Item reference numbers are used in the overview illustrations and refer to the numbers used in the product overview section.
These characters are intended to specifically draw your attention to certain points when handling the product.
1.3 Symbols on the product
1.3.1 Product-dependent symbols
The following "must do" symbols are used on the product:
Do not transport by crane
Return material for recycling
Alternating current
Service indicator
Rated speed under no load
Diameter
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
Drilling performance indicator
1.4 Product-dependent symbols
3-way valve
Position for wet drilling
Position for dry drilling
Core bit draining position
Illustrations
At temperatures below 4 °C the cooling circuit must be drained as described before breaks of an hour or longer.
Operate the system only with a fully functional PRCD.
Top: An additional means of securing the drill stand must be employed when the machine is used for horizontal drilling with the vacuum securing method.
1.5 Product information
Hilti products are designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel. This personnel must be informed of any particular hazards that may be encountered. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use.
The type designation and serial number are stated on the rating plate.
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
Write down the serial number in the table below. You will be required to state the product details when contacting Hilti Service or your local Hilti organization to inquire about the product.
Product information
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Diamond core drilling machine |
DD 350-CA |
|
Generation |
01 |
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Serial no. |
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1.6 Declaration of conformity |
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We declare, on our sole responsibility, that the product described here complies with the applicable directives and standards. A copy of the declaration of conformity can be found at the end of this documentation.
The technical documentation is filed and stored here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering, Germany
2 Safety
2.1 General power tool safety warnings
WARNING Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow the instructions below may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety
Keep your work area clean and well lit. Cluttered or dark work areas invite accidents.
Do not operate the power tool 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.
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 power outlets reduce the 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.
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 the power tool may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to 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.
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing 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 let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.
Power tool use and care
Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does 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 remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools.
Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
Service
Have your power tool serviced by a qualified repair person using only identical replacement parts.
This will ensure that the safety of the power tool is maintained.
2.2Diamond drill safety warnings
When performing drilling that requires the use of water, route the water away from the operator’s work area or use a liquid collection device. Such precautionary measures keep the operator’s work area dry and reduce the risk of electrical shock.
Operate power tool by insulated grasping 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.
Wear hearing protection when diamond drilling. Exposure to noise can cause hearing loss.
When the bit is jammed, stop applying downward pressure and turn off the tool. Investigate and take corrective actions to eliminate the cause of the bit jamming.
When restarting a diamond drill in the workpiece check that the bit rotates freely before starting. If the bit is jammed, it may not start, may overload the tool, or may cause the diamond drill to release from the workpiece.
When securing the drill stand with anchors and fasteners to the workpiece, ensure that the anchoring used is capable of holding and restraining the machine during use. If the workpiece is weak or porous, the anchor may pull out causing the drill stand to release from the workpiece.
When drilling through walls or ceilings, ensure to protect persons and the work area on the other side. The bit may extend through the hole or the core may fall out on the other side.
Do not use this tool for overhead drilling with water supply. Water entering the power tool will increase the risk of electric shock.
2.3Additional safety precautions
Personal safety
Do not tamper with or attempt to make alterations to the device.
The power tool is not intended for use by debilitated persons who have received no special training.
Keep the power tool out of reach of children.
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
Do not touch rotating parts. Switch the power tool on only after it is in position at the workpiece.
Touching rotating parts, especially rotating accessory tools, can result in injury.
Avoid skin contact with drilling slurry.
Dust from materials such as lead-based paint, certain types of wood and concrete/masonry/stone containing quartz, minerals or metal can be harmful to health. Contact with or inhalation of the dust can cause allergic reactions and/or respiratory or other diseases among operators or bystanders. Certain kinds of dust such as oakwood and beechwood dust are classified as carcinogenic, especially in conjunction with additives for wood conditioning (chromate, wood preservative). Only specialists are permitted to handle material containing asbestos. Use as effective a dust removal system as possible. To achieve a high level of dust collection, use a suitable vacuum extractor of the type recommended by Hilti for wood dust and/or mineral dust and which is designed for use with this power tool. Ensure that the workplace is well ventilated. It is advisable to wear a respirator appropriate for the type of dust generated. Comply with national regulations applicable to the materials you will be working with.
The diamond core drilling machine and the diamond core bit are heavy. There is a risk of crushing parts of the body. The user and persons in the vicinity must wear suitable protective goggles, a hard hat, ear defenders, protective gloves and protective footwear while the tool is in use.
Power tool use and care
Make sure that the device is correctly secured to the drill stand.
Always make sure that an end stop is installed on the drill stand as otherwise the safety-relevant end-stop function is not implemented.
Check that accessory tools are compatible with the power tool’s chuck/drive system and that they are installed and secured correctly.
Electrical safety
Do not use extension cords with multiple power outlets powering two or more devices in operation at the same time.
Operate the device only when it is connected to an adequately rated power supply with a ground conductor.
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 on the power tool can become live, for example if you inadvertently damage electric wiring. This presents a serious risk of electric shock.
Make sure that the supply cord cannot be damaged as the carriage advances.
Never operate the machine without the accompanying PRCD (machines without PRCD: Never operate the machine without an isolating transformer). Test the PRCD each time before use.
Check the machine’s supply cord at regular intervals and have it replaced by a qualified specialist if found to be damaged. If the machine’s supply cord is damaged it must be replaced with a specially prepared and approved supply cord available from Hilti Customer Service. 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 you are working. Disconnect the supply cord plug from the power outlet. Damaged supply cords and extension cords present a risk of electric shock.
Never operate the machine when it is dirty or wet. Dust, especially dust from conductive materials, or dampness on the surface of the power tool can, under unfavorable conditions, lead to electric shock. Have dirtied or dusty machines checked at regular intervals by Hilti Service, especially if they are used frequently for working on conductive materials.
Workplace
Approval must be obtained from the site engineer or site management before beginning work.
Drilling work on buildings and other structures can influence the statics, especially when steel reinforcing bars and load-bearing components are cut through.
If the drill stand has not been secured correctly, always move the machine on the drill stand all the way down to keep the stand from toppling.
Keep the supply cord, extension cord, water hose and vacuum hose away from rotating parts.
Use of the water collection system in combination with a wet-type industrial vacuum extractor is mandatory for upward wet drilling.
Use of the vacuum fastening method for upward drilling without additional means of securing the equipment is prohibited.
An additional means of securing the drill stand must be employed when the machine is used for horizontal drilling with the vacuum securing method (accessory).
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
3 Description
3.1 Product overview
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
@Controls and indicators panel
;Carrying bar
=Rating plate
%Grip
&Water drainage plug
( 3-way valve
3.2 Controls and indicators panel
)
+
§
/
:
∙
Chuck Connector
Supply cord guide Water connection Water flow regulator Supply cord with PRCD
@ |
Gear switch |
& |
; |
Drilling performance indicator |
( |
= |
Temperature monitoring/ground fault |
) |
%ON switch
3.3Vacuum plate (accessory)
OFF switch
Rebar button (iron boost) Service indicator
@Vacuum release valve
;Vacuum hose connector
=Vacuum seal
%
&
(
Pressure gauge
Wheel assembly mount Leveling screws (4x)
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Printed: 02.11.2017 | Doc-Nr: PUB / 5145267 / 000 / 04
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