DBM131 - Drill MAKITA - Free user manual and instructions

USER MANUAL DBM131 MAKITA

Originalbetriebsanleitung

GB Wet and dry diamond core drilling machine

Original Instructions

F Carotteuse diamant à eau et à sec

Rated voltage: 110 V ~

Weight according to EPTA Procedure 01/2003: 6.3 kg

Collar clamping diameter: 53 mm

This manual shall be subject to modification without prior notice in the course of developments and

Note: The technical data may differ depending on the country.

The following symbols are used for the equipment. It is important to know their meaning before you use

The Makita DBM 131 wet and dry diamond core drilling machine is, in connection with diamond drill bits,

used for dry cutting in brick, masonry and sand-lime brick and wet cutting in concrete and stone.

The plastic cap also remains on the spindle during dry cutting and shall only be removed when

replacing the shaft seals.

When drilling bores with a diameter of more than 40 mm using the 1

gear, the use of a suitable drill

stand is compulsory.

Work with concentration and care.

Keep your workplace clean and avoid hazardous situations.

Precautions shall be taken to protect operators.

Double protective insulation1

gear hand drilling is prohibited! The reaction torque may lead to hazardous situations in case

The user shall be responsible for damages caused by inappropriate use.

Generally accepted accident prevention regulations and the safety instructions enclosed shall be

Before starting the machine, compare the supply voltage and frequency with the data stated on the type

plate. A voltage difference of +6% / -10% is permitted. The machine is always supplied with an

integrated PRCD safety switch to be used with a grounded socket. Before using the machine, always

check the proper function of the PRCD safety switch (see special instructions).

Caution! Do not use the PRCD safety switch to switch the machine on or off!

Do only use an extension cable with sufficient cross section (at least 2.5 mm

). A cross section that is

too small may lead to excessive loss of power and overheating of the motor and the cable.

Read and observe these instructions before you use the machine.

ADDITIONAL SAFETY RULES FOR THE MACHINE:

1. Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury.

2. 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

3. Do only use the core drilling machine under constant supervision. Unplug the power plug and make

sure that the core drilling machine is switched off when it is left unattended, during assembly and

disassembly work, voltage drop (below 200 V), adjustment and/or assembly of accessories,

4. Do not use the machine if a part of the housing is damaged and/or if the switch, connecting lead or

plug is damaged (daily visual inspection!). Damages shall be removed by an expert immediately.

5. The machine shall not be damp or wet.

6. Wear ear protection if you work with the machine for a longer period of time. Permanent noise may

lead to hearing damage.

7. Wear safety helmet, safety goggles and/or face protection. It is also recommended to wear a dust

mask and thickly padded gloves.

8. Make sure that the tool is assembled properly before you start operating the machine.

9. Carefully check all screws for tightness before you start operating the machine. Due to vibrations

during operation, screws may become loose and cause damages or accidents.

10. Make sure no one is below your workplace when using the machine in areas above the ground.

11. Keep hands well away from rotating parts.

12. During machine operation, make sure that the cooling water never enters the motor and electrical

13. If there is a leakage between the plastic ring and the gearbox, stop working immediately and have

the machine repaired by an authorised shop.

14. Overhead (upward) drilling shall only be carried out when a suitable protection (water collecting

15. After malfunction, do not switch on the motor unless the drill bit rotates freely again.

16. Avoid touching the drill bit immediately after dry cutting. It may be very hot and cause severe burns.

17. In order to avoid starting the machine unintended, always trigger the switch when the plug has

been removed from the socket or the power supply has been interrupted.

18. Make sure you always stand in a firm position and be aware of the reaction moment of the

machine.Electrical Safety

The DBM 131 core drilling machine is a safety class II tool.

In order to protect the operator, the machine shall only be operated using a residual current

device (RCD) during wet cutting. Operating the machine without a working PRCD safety switch

poses danger to life and health.

Therefore, the machine is always supplied with an integrated PRCD safety switch to be used with a

No changes shall be made to the machine. In order to ensure safe operation of the machine, damages

on the PRCD safety switch shall be immediately removed by a qualified service centre.

Do only use the machine for hand held drilling together with the auxiliary handle that is supplied with it. It

is attached to the collar and fixed by turning the handle.

Depending on the drill bit diameter, you can choose between two possible speeds.

For drilling diameters up to 70 mm, we recommend the 2

gear •• (pointed side of the gear switch points

at the motor) and for drillings over 70 mm, the 1

gear • shall be used (pointed side of the gear switch

points at the spindle). These values are reference values only. When setting the speed, the instructions

of the tool manufacturer should be observed.

When it is not possible to move the gear switch into its end position when the machine is stopped,

slightly turn the drilling spindle.

Caution! Do only change gears when the machine is stopped and shift clockwise!

Switching the machine on/off

The drilling machine is equipped with an electronic positioning switch including a locking device.

The more the switch is pressed, the higher the speed. This allows for precise drilling when starting a

Under normal working conditions, always work at maximum speed.

Caution! Do not lock the switch during hand held drilling!

Short-Time Operation – hand held drilling

Starting the machine: Press on/off switch

Stopping the machine: Release on/off switch

Starting the machine: Press on/off switch and while keeping it pressed, engage the lock

Stopping the machine: Press on/off switch again and release it

The DBM 131 core drilling machine is suitable for both wet and dry drilling.

• The water supply permanently remains on the spindle.

• Never drill without water supply since the spindle could be damaged.

If there is a leakage between the black plastic ring and the housing, the water supply shall be exchanged

and/or the shaft seals shall be substituted with new, slightly grease-lubricated shaft seals.

These are available at your specialised dealer’s or manufacturer’s shop.

• The water supply (black plastic ring) can only be removed by pulling it down.

• The assembly of the water supply shall be carried out by sliding it on until it snaps!

• Pay attention to the position of the dowel pin (for protection against twisting).Warning! Do not damage the sealing rings during assembly.

The machine has an external water supply provided by the work spindle. With the help of the ball valve,

you can regulate the required water quantity.

The water supply is equipped with a connection for Gardena hose couplings.

Caution: The water pressure at the connection should not exceed 3 bar.

In case of drilling overhead, the water shall be sucked off at the drill hole by a water collection

ring and wet suction device for safety reasons and performance reliability of the machine.

In order to start drilling a hole without problems, it is recommended to use drill bits allowing for

integration of a centre drill. The electronic positioning switch makes it possible to start drilling the hole

slowly and the drill bit is intended to penetrate the material approx. 5 to 10 mm. After having removed

the centre drill, the drill bit is slowly inserted in the hole and the maximum rated speed is reached by fully

pressing the switch.

Open the ball valve and switch on the machine. Hold the machine firmly with both hands. Apply the

machine with a slight inclination (approx. 30° to the machine axis) or use the spotting drill. When the drill

bit has penetrated the surface (approx. 1/8 to 1/4 of the circumference), position it (right angle) and use

sufficient surface pressure.

• Do use a spot drilling, especially for larger drill bit diameters, when starting a hole.

• Make sure that the drill bit does not tilt while drilling.

Please take into account that the machine provides a very high torque especially in the

gear. Concentrate on hand held drilling in particular when drilling holes with a

diameter of over 70 mm. If the drill bit is suddenly blocked, the machine may be torn

out of your hands despite the safety clutch and cause injuries.

• Adjust the feed to the drill bit diameter and the power of the machine. Pay attention to the LED at

the handle (see Overload protection).

• If the drill bit is jammed, do not try to remove it by switching the machine on and off. Switch off the

machine immediately and remove the drill bit by turning it to the right and to the left using a suitable

open-ended wrench and pull the machine carefully out of the drill hole.Overload Protection

In order to protect the operator, the motor and the drill bit, the machine is equipped with a mechanical,

electronic and thermal overload protection.

Mechanical protection: When the drill bit is suddenly jammed, the drilling spindle is disengaged from the

motor with an overload slipping clutch.

Electronic protection: If the feed force is too powerful and causes overload, the power supply is

switched off by the electronic system. After the system is unloaded and switched

on again, you can carry out your work.

Thermal protection: The motor is protected from damages due to continuous overload with the help of

a thermal element. In this case, the machine switches off independently and can

only be restarted after it has cooled down (max. 2 min). The cooling period

depends on the heating of the motor winding and the ambient temperature. In

order to accelerate the cooling, let the machine operate without load for 1 to 2

minutes after the restart.

The stop of the machine caused by overload protection is not a defect!

After adequate waiting time, it is possible to start working again!

Care and Maintenance

Always make sure that the switch is in its OFF position and the power plug is removed from the socket

before carrying out any work on the tool.

In order to guarantee product safety and reliability, repairs, maintenance and adjustments shall be

carried out by a Makita Service Station.

The power tool is designed in a way that it requires only a minimum of care and maintenance.

The following work shall be carried out and/or the following parts shall be inspected regularly:

• Do always keep the power tool and the ventilation slots clean.

• Make sure that no foreign objects get into the power tool.

• Replace the carbon brushes on time: If the carbon brushes are used until their wear limit (5 mm) is

reached, they shall only be replaced in pairs by an expert. After having replaced the carbon brushes,

let the machine idle approx. 20 minutes in order to run the brushes.

• It is necessary to clean the gearbox and the motor after having replaced the carbon brushes.

Since a general inspection of all parts is required at that time, the machine shall be send to a

Makita Service Station.

Information on noise and vibration

Measured values determined according to EN 60745

The A-weighted noise level of the tool is typically:

Sound pressure level (L PA

Sound power level (L WA

Hand-arm vibration is typically lower than 2.5 m/s².

Measured values determined according to EN 60745

The vibration emission level indicated in these instructions has been measured in accordance with a

standardised test method given in EN 60745 and can be used to compare one tool with another. It is

also suitable for a preliminary evaluation of the vibration emission level.The vibration emission level set out in these instructions presents the main applications of the power

tool. If the power tool is used for other applications or with different tools or if maintenance is not

sufficient, the vibration emission level may vary. This may lead to a significantly higher vibration

emission level during the whole working period.

In order to be accurate, an estimation of the level of exposure to vibration should also take into account

the times when the tool is switched off and when it is running but not actually used. This may

significantly reduce the level of exposure to vibration during the whole working period.

Additional protective measures in order to protect the operator from vibration effects, e.g. maintenance

of power tools and tools, keeping hands warm, organisation of work processes, shall be determined.

For European Countries only

EC Declaration of Conformity

Makita declare that the following Makita Machine(s):

Designation of Machine: Diamond core drill

Model No / Type: DBM 131

Are of series production and

Conforms to the following European Directives:

2011/65/EU; 2004/108/EC until 19.04.2016; 2014/30/EU from 20.04.2016; 2006/42/EC And are manufactured in accordance to the following standards or standardised

The Technical Documentation is kept by:

Are of series production and

EC Declaration of Conformity