alzaTools AT-CBRH20V Cordless Brushless Rotary Hammer User Manual

June 9, 2024
alzaTools

alzaTools AT-CBRH20V Cordless Brushless Rotary Hammer

SAFETY INSTRUCTIONS

EXPLANATION OF SYMBOLS ON THE PRODUCT PACKAGING/TYPE LABEL

  • Read the operating instructions carefully before use!
  • Wear mouth and nose protection.
  • Wear protective glasses
  • Protect from rain and moisture.
  • Ensure proper recycling of the product at the end of its service life and all packaging materials.
  • Do not throw batteries into a fire!
  • Always remove the battery during work, transport, storage, maintenance or repair.
  • Wear protective gloves
  • Wear noise protection.
  • Do not throw batteries into water!
  • Protect from heat and fire.
  • Do not dispose of batteries with normal household waste.
  • Do not expose batteries to excessive temperatures above 50 °C.

GENERAL SAFETY INSTRUCTIONS FOR POW-ER TOOLS

WARNING!
All safety instructions, user manuals, images and regulations supplied with these tools must be read. Failure to follow all of the following instructions may result in electric shock, fire, and/or serious personal injury. All instructions and the user manual must be kept for future reference.

Safety of the working environment

  1. The workplace must be kept clean and well lit. Untidy and dark spaces are often the cause of accidents.
  2. Power tools must not be used in potentially ex-plosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that can ignite dust or fumes.
  3. Children and other persons must be kept away when using power tools. If the operator is dis-turbed, he/she may lose control of the opera-tion.

Electrical safety

  1. The plug on the power tool’s flexible lead must match the power outlet. The plug must never be modified in any way. No socket adapters may be used with tools that have a protective earth connection. Plugs and respective sockets that are rendered unusable will reduce the risk of electric shock.
  2. The operator must not touch grounded ob-jects, such as pipes, central heating units, cookers and refrigerators. The risk of electric shock is greater if your body is connected to the ground.
  3. Power tools must not be exposed to rain, mois-ture or wetness. If water enters the power tool, the risk of electric shock increases.
  4. The flexible supply must not be used for oth-er purposes. The power tool must not be car-ried or pulled by the cord, nor must the plug be unplugged from the socket. The inlet must be protected from heat, grease, sharp edges or moving parts. Damaged or tangled leads increase the risk of electric shock.
  5. If the power tool is used outdoors, an extension cord suitable for outdoor use must be used. Us-ing an extension cord for outdoor use reduces the risk of electric shock.
    6. If the power tool is used in a humid environment, a residual current device (RCD) must be used. Using an RCD reduces the risk of electric shock.

Safety of persons

  1. When using a power tool, the operator must be careful, pay attention to what he/she is do-ing, and concentrate and think clearly. Power tools must not be used if the operator is tired or under the influence of drugs, alcohol or medication. Momentary inattention while us-ing a power tool can result in serious personal injury.
  2. Use personal protective equipment. Always use eye protection. Protective equipment such as a respirator, non-slip safety shoes, hard hat and hearing protection, used in accordance with the working conditions, reduces the risk of personal injury.
  3. Unintentional starting of the machine must be avoided. Make sure that the switch is in the off position before plugging in and/or con-necting the battery pack, lifting or carrying the tool. Carrying a tool with your finger on the switch or plugging in a tool fork with the switch on can cause injury.
  4. All adjusting tools or wrenches must be re-moved before turning on the tool. An adjust-ing tool or wrench that remains attached to the rotating part of the power tool may result in personal injury.
  5. The operator must only work where he/she can safely reach. The operator must always maintain a stable posture and balance. This will allow better control of the power tool in unforeseen situations.
  6. Dress appropriately. Do not wear loose clothing or jewelry. The operator must make sure that his/her hair and clothing are a sufficient distance away from moving parts. Loose clothing, jewelry and long hair can be caught in moving parts.
  7. Where equipment is provided for connecting dust extraction and collection facilities, care must be taken to ensure that it is connected and used correctly. The use of such equip-ment can reduce hazards caused by dust.
  8. The operator must not allow the routine that results from the frequent use of the tools, to cause them to become complacent and ig-nore the principles of tool safety. Careless activity can cause serious injuries in a split second.

Use and the maintenance of power tools

  1. Power tools must not be overloaded. It is essential to use the correct power tool for the work being carried out. The correct power tool will do the work it was designed to do better and safer.
  2. Power tools that cannot be turned on and off with the switch must not be used. Any power tool that cannot be operated with the switch is dangerous and must be repaired.
  3. Before making any adjustments, changing accessories, or storing power tools, unplug the power tool and/or remove the battery pack from the power tool if it is removable. These precautions reduce the risk of accidentally starting the power tool.
  4. Unused power tools must be stored out of the reach of children. Persons unfamiliar with the power tool or these instructions must not be allowed to use the power tool. Power tools are dangerous in the hands of inexperienced users.
  5. Power tools and accessories must be maintained. The adjustment of moving parts and their mobility must be checked and attention focused on cracks, broken parts and any other circumstances that may jeopardize the function of the power tool. If the tool is damaged, it must be repaired before use. Many accidents are caused by poorly maintained power tools.
  6. Cutting tools must be kept sharp and clean. Properly maintained and sharpened cutting tools are less likely to catch on material or jam and are easier to control.
  7. Power tools, accessories and tool bits etc. must be used in accordance with these in-structions and in the manner intended for the particular power tool, taking into account the working conditions and the work to be carried out. Using power tools for activities other than those for which they are designed can lead to dangerous situations.
  8. Handles and grip surfaces must be kept dry, clean and free of grease. Slippery handles and gripping surfaces mean the tool cannot be held and controlled in unexpected situations. qualified personnel using identical spare parts. This will ensure the same level of safety of the power tool as before the repair.
USE AND MAINTENANCE OF CORDLESS TOOLS
  1. The tool must only be charged with the charg-er specified by the manufacturer. A charger that may be suitable for one type of battery pack may present a fire hazard when used with another battery pack.
  2. The tool must only be used with a battery pack that is specifically designed for the tool. The use of any other battery pack may present a risk of injury or fire.
  3. When the battery set is not used, the battery pack must be protected from contact with oth-er metal objects, such as paper clips, coins, keys, nails, screws or other small metal objects that can cause one battery contact to come into contact with another. Short-circuiting the battery terminals may cause burns or fire.

SAFETY WARNINGS FOR HAMMERS

  1. Wear ear protection. Noise exposure can cause hearing loss.
  2. Use the auxiliary handle if it is supplied with the tool. Loss of control can cause personal injury.
  3. When performing an operation where the cutting tool may touch a hidden guide or its own power supply, hold the power tool by the grip-ping insulated handles. Contact of a cutting tool with a “live” wire can cause uninsulated metal parts of the power tool to become “live” and can result in an electric shock to the user

SAFETY INSTRUCTIONS WHEN USING LONG DRILLS IN HAMMER DRILLS

  1. Always start at a low speed with the tip of the drill touching the workpiece. At higher speeds, the drill is likely to bend if it is allowed to rotate freely without being in contact with the workpiece, which can result in personal injury.
  2. Only push in a straight line with the drill and do not apply excessive pressure. Drills can bend and crack or cause loss of control, which can result in personal injury.

TECHNICAL DATA

Drilling options

Concrete| 22 mm
Steel| 13 mm
Wood| 28 mm
Idle speed:| 0–1,420 min-1
---|---
Impact rate:| 0–4,500 BPM
Chuck:| diameter 10 mm SDS
Impact energy:| 2,2 J
Overall length (bare tool):| 258.5 mm
Rated voltage:| 20 V DC
Net weight (approximately with bare tool):| 2.28 kg

Noise
Typical weighted A noise level determined according to EN62841:

Sound pressure level (Lp A ) 87 dB(A)
Sound power level (LW A ) 98 dB(A)
Uncertainty (K) 3 dB(A)

Vibration
Total vibration value (triaxial vector sum) determined according to EN62841:

Working regime hammer drilling into concrete
Vibration emissions (a h , HD) 6.1 m/s2
Uncertainty (K) 1.5 m/s2
Working regime drilling into metal
--- ---
Vibration emissions (a h, D ) 3.0 m/s2 or less
Uncertainty (K) 1.5 m/s2

Intended use
The tool is designed for hammer drilling and drilling into bricks, concrete and stone. It is also suitable for hammer drilling into wood, metal, ceramics and plastics.

DESCRIPTION

  1. Depth gauge
  2. Wing screw
  3. Chuck cover
  4. Side (auxiliary) handle
  5. Work mode switch
  6. LED lamp
  7. Switch/trigger
  8. Soft grip (main grip)
  9. Reversing lever
  10. Battery slot button
  11. Battery

ASSEMBLY

ATTENTION: Always make sure that the tool is switched off and the battery is removed before carry-ing out any work on the tool.

Side (additional) handle assembly

  • ATTENTION: Always use the side handle to ensure safe operation.
  • ATTENTION: After mounting or adjusting the side handle, make sure that it is securely locked.

Follow the instructions below to install the side handle.

  1. Loosen the thumbscrew by turning the side handle counterclockwise.
  2. Attach the side handle so that the grooves on the handle fit into the protrusions on the tool cylinder.
  3. Turn the side handle clockwise to tighten the thumbscrew and secure the handle. The grip can be fixed at the required angle.

Depth gauge
The depth gauge is suitable for drilling holes of the same depth.
Loosen the thumbscrew by turning it counterclockwise, and then insert the depth gauge into the hex hole. Make sure that the toothed side of the depth gauge faces the side handle.
Adjust the depth gauge by moving it back and forth while loosening the screw. After setting the required depth, tighten the thumbscrew by turning it clockwise to secure the depth gauge.

NOTE:
Make sure that the depth gauge does not touch the main body of the tool during installation.

Lubricant
Pre-coat the end of the drill shank with a small amount of grease (approx. 0.5-1 g). This lubrication also lubricates the chuck and ensures smooth running and longer life.

Drill assembly or disassembly
Before inserting the drill, clean the end of the drill shank and apply grease. Insert the drill bit into the tool. Turn the drill bit and push it in until it clicks. After installing the drill bit, always make sure that the drill bit is securely anchored in place by trying to pull it out.

NOTE: Always use an SDS drill. Other types cannot be inserted.

OPERATOR

ATTENTION:
Always make sure that the tool is switched off and the battery is removed before adjusting or checking the function of the tool.

Removing and inserting the battery

  • ATTENTION: Always switch off the tool before installing or removing the battery.
  • ATTENTION: Hold the tool and the battery firmly when installing or removing the battery. If you do not hold the tool and battery firmly, it may slip out of your hands and cause damage to the tool and battery and personal injury.
  • To remove the battery, slide it out of the tool while sliding the button on the front of the battery slot. When installing the battery, align the tab on the battery with the groove in the cover and slide it into place until it locks into place with a click.
  • ATTENTION: Always fully insert the battery. If not, it may accidentally fall out of the tool and cause injury to you or someone around you.
  • ATTENTION: Do not force the battery. If the battery does not click into place, it is not inserted correctly.
  • WARNING: Before inserting the battery into the tool, always check that the switch works properly and returns to the “OFF” position when released.

Display of remaining battery capacity
Press the control button on the battery to see the remaining capacity.

Signal lamps Remaining capacity
3 green lights are on 75 – 100 %
2 green lights are on 25 – 50 %
1 green light is on 10 – 25 %

NOTE: Depending on the conditions of use and the ambient temperature, the indication may differ slightly from the actual capacity.

Tool/battery protection system
The tool is fitted with a tool/battery protection system. This system automatically shuts off the engine power to extend tool and battery life. The tool will stop automatically during operation if the tool or battery reaches one of the following conditions:

Overload protection
If the battery is operated in a manner that causes an abnormally high current consumption, the tool will stop automatically without any indication. If this occurs, turn off the tool and stop the application that caused the tool to overload. Then start the tool again.

Overheating protection
If the tool or battery overheats, the tool will stop automatically. In this case, allow the tool/battery to cool down before turning it on again.

Overcharge protection
If the battery capacity is insufficient, the tool will automatically stop. In this case, remove the battery from the tool and charge it.

Switching operation/action
To start the tool, simply press the switch. The tool speed is increased by increasing the pressure on the switch. To stop the tool, release the switch.

Switch on the front lamp

ATTENTION:
Do not look directly at the light or light source.

  • Press the light switch to turn on the lamp. The lamp remains on after the switch is pressed. The light goes out approximately 5 seconds after the switch is released.

NOTE:
Wipe any dirt from the lamp lens with a dry cloth. Be careful not to scratch the lamp lens as this will reduce the light.

Reverse switching action

  • ATTENTION: Always check the direction of rotation before starting work.
  • ATTENTION: Do not use the reverse switch until the tool has come to a complete stop. Changing the direction of rotation before stopping the tool can damage it.
  • ATTENTION: Always turn the reverse switch lever to the neutral position when not in use.

This tool has a switch to change the direction of rotation. Press the reverse switch lever to side A to rotate clockwise or side B to rotate counterclockwise.
When the rotary selector lever is in the neutral position, the switch button cannot be pressed.

OPERATING MODE SELECTION
  • NOTE: Do not turn the operating mode switch while the tool is running. This would cause damage.
  • NOTE: To avoid rapid wear of the operating mode mechanism, make sure that the operating mode change switch is always fully located in one of the mode positions.

Hammer drilling
For drilling in concrete, masonry, etc. Turn the mode switch to the hammer and drill symbol. Use a carbide tip.

Drilling only
When drilling into wood, metal or plastic, turn the mode switch to the drill symbol in the same way. Use a twist drill or wood drill.

Cutting
To mow, change to scratch or demolish, turn the mode switch to the mowing symbol. Use a chisel, cutting tool, etc. Make sure that the chisel is securely fixed in place by turning it slightly.

Adjusting the position of the drill/chisel holder
The drill/chisel can also be locked in various positions. In this way, the optimal working position can be set for each application. To change the position of the holder lock, proceed as follows:

  1. Insert the drill or chisel into the holder.
  2. Turn the rotary selector to change the operating mode to the symbol .
  3. Rotate the tool holder to the desired cutting position.
  4. Turn the rotary selector back to the symbol. The tool holder is now locked.

Impacting only
For total crushing of concrete, masonry, etc. Turn the mode change switch to the position of the ham-mer symbol. Use a chisel, cutting tool, etc.

  • ATTENTION: Always use the side (auxiliary) handle during operation and hold the tool firmly by the side handle and the switch handle.
  • ATTENTION: Always make sure that the workpiece is secured before starting work.
  • ATTENTION: Wear a dust mask and gloves when working.
  • ATTENTION: Do not remove the tool by force, even if the drill jams. Loss of control can cause injuries.
  • NOTE: If the battery is insufficiently warm, the tool functions may not be fully usable. In this case, warm the battery by idling for a short time to allow the battery to operate at full power. WARNING: Do not cover the ventilation openings as this could overheat and damage the tool.

HAMMER DRILLING

ATTENTION:
The tool/drill is subjected to a huge and sudden torsional force when penetrating the hole, when the hole is blocked with chips and particles or when hitting reinforcing bars embedded in concrete. Always use the side handle during operation and hold the tool firmly by the side handle and the switch handle. Failure to do so may result in loss of control of the tool and serious injury.

Set the mode change switch to the hammer and drill symbol. Place the drill bit in the desired hole position, then press the shutter button. Do not press on the tool. Weak pressure gives the best results. Keep the tool in place and prevent it from slipping out of the hole. Do not apply further pressure if the hole is blocked with chips or particles. Instead, let the tool idle, and then partially remove the drill bit from the hole. Repeating this procedure will clean the hole and normal drilling can be resumed.

NOTE:
When working without load, eccentricity can occur when turning the drill. The tool is automatically centered during operation. This does not affect the drilling accuracy.

CHOPPING, SCRAPING OR DEMOLITION
Set the mode change knob to the chopping symbol. Hold the tool firmly with both hands. Switch on the tool and push the tool lightly so that the tool does not move uncontrollably. Pressing hard on the tool will not increase its efficiency.

DRILLING INTO WOOD

  • ATTENTION: Hold the tool firmly and be careful when the drill starts to penetrate the workpiece. There is an enormous force on the tool/drill at the time of the hole penetration.
  • ATTENTION: A jammed drill can be removed simply by setting the run switch to the reverse position to return. However, if you do not hold it firmly, the tool may suddenly and quickly “run” back.
  • ATTENTION: Always fasten the workpieces in a vice or a similar clamping device.
  • NOTE: Never use “hammer drilling” if a drill chuck is mounted on the tool. This could damage the chuck.

The chuck is also released during reverse working with the tool.

NOTE:
Excessive pressure on the tool will not speed up the drilling. This excess pressure will only serve to damage the drill bit, reduce tool performance and shorten tool life.

Set the mode change switch to the drill symbol. Attach the chuck adapter to the quick-release chuck, which can hold a 1/2”-20 screw, and then insert it into the tool. Refer to the instructions in the “Drill Assembly or Disassembly” section to install it.

DIAMOND CORE DRILLING

NOTE:
If drilling with a diamond core in “hammer drilling” mode, the diamond drill may be damaged.

When drilling with a diamond core, always use the “drilling only” mode, and always set the switch to change the operating mode to the drilling position.

MAINTENANCE

  • ATTENTION: Always make sure that the tool is switched off and the battery is removed before inspection or maintenance.
  • NOTE: Never use petrol, thinner, alcohol or similar. Discoloration, deformation or cracks may occur.

To maintain the SAFETY and RELIABILITY of the product then repairs, any other maintenance or adjustment should be performed by authorized service centers, always using spare parts specified by the manufacturer.

EC DECLARATION OF CONFORMITY

Identification of the manufacturer/importer’s authorised representative:

  • Manufacturer: Alza.cz, a. s.
  • Registered office: Jankovcova 1522/53, Holešovice, 170 00 Prague 7
  • Company ID: 27082440

The subject of the declaration:

  • Name: Cordless hammer drill
  • Model/Type: AT-CBRH20V

The above product has been tested in accordance with the standard (s) used to demonstrate compliance with the essential requirements set out in the Directive (s):

  • Machine directive 2006/42/EC
  • Electromagnetic compatibility (EMC) directive 2014/30/EU
  • ROHS directives 2011/65/EU and (EU) 2015/863

Reference to harmonised standards:

  • EN 62841-1:2009/A11:2010
  • EN 62841-2-6:2010
  • EN55014-1:2017
  • EN55014-2:2015

EC type-examination was carried out on:
No. 0123 TÜV SÜD Product Service GmbH, Certification Body, Ridlerstraße 65, 80339 Munich, Ger-many

  • Certificate number: M8A 063263 0101

Technical documentation is stored at:
Alza.cz, a. s.
Jankovcova 1522/53, Holešovice, 170 00 Prague 7
The year of manufacture of the machine and the serial number are indicated on the machine.
Ing. Jan Melena
Business Development Manager
Sales and Purchasing; Private Labels

Prague, 22. 9. 2021

WARRANTY & SUPPORT

Your new product is protected by our 24-month warranty, or extended warranty (if stated), which you can apply at any of our points of sale. For inquiries, you can use the contact form or one of our international call centers.

On‑line:
www.alzashop.com/contact.

This product meets all of the related basic EU regulatory requirements. The EU declaration of conformity is available at www.alzashop.com/doc. This product sold in the European Union meets the requirements of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equip-ment (RoHS).

The use of the WEEE Symbol indicates that this product should not be treated as household waste. By ensuring this product is disposed of correctly, you will help protect the environment. For more detailed information about the recycling of this product, please contact your local authority, your household waste disposal service provider, or the shop where you purchased the item.

Co. Reg. No. 27082440
Alza.cz, a. s., Jankovcova 1522/53, 170 00 Prague 7, Czech Republic © 2021 Alza.cz, a. s. All Rights Reserved.

References

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