KERN DB 1700 N Bedienungsanleitung

Operation manual

DB 1700 N

Operating Instructions……............... 1- 10

Operating Instructions

Important Instructions

Warning notices:

Warning of general danger

Warning of dangerous voltage

Warning of hot surface

Danger of being crushed

Danger of being ripped or cut

During work you should wear goggles, ear protectors, protective gloves, and sturdy work clothes!

Use ear protection

Wear safety goggles

Wear a helmet

Use protective gloves

Wear protective boots

Specifications

Diamond Core Drill DB 1700 N

Nominal voltage 110 V AC

Power drain 1.700 W

Order No.

Frequency: 40-60 Hz

Max. drilling diameter: 132 mm

Bit holder: M 18

Protection class: II

Degree of protection: IP 20

Weight: approx. 6.8 kg

Interference suppression acc.to: EN 55014 and EN 61000

Gear No load speed Rated speed Max. drilling diameter

I 0-1050 rpm 0-800 rpm 132 mm

II 0-21000 rpm 0-1570 rpm 70 mm

Supply

Diamond core drill with cable-integrated cable PRCD protective switch, wet-type connector with ball valve and

GARDENA connector and instruction manual in transport case.

Application for Indented Purpose

The diamond core drill DB 1700 N is indented only for professional use and may be used only by instructed

personnel.

It may be used either with or without a suitable diamond drill rig. For wet drilling jobs with diameters above 80 mm

and drilling in the 1st gear, it is a must to use a suitable drill rig.

Drilling in the 1st gear without drill rig is prohibited! On careless use, counter torques may cause danger to

the user!

Safety Instructions

Safe use of the tool is only possible if the user had

studied the instruction manual and safety instructions

completely and is strictly following the instructions

contained therein.

Additionally, the general safety instructions of the leaflet

supplied with the tool must be observed. Prior to the first

use, the user should absolve a practical training.

If the mains cable gets damaged or cut during the use, do not

touch it, but instantly pull the plug out of the socket. Never use

the tool with damaged mains cable.

Prior to drilling in walls and ceilings, check them for hidden

cables, gas and water pipes and other media.

Check the working area, e.g. using a metal detector.

Prior to the start of your work, consult a statics specialist to

determine the exact drilling position.

If drilling through ceilings, secure the place below, because

the may fall downward.

The tool must neither be wet nor used in humid environment.

Do not use the tool in an environment with danger of explosion.

Do not use the tool standing on a ladder.

Do not drill into asbestos-containing materials.

Do not carry the tool at its cable, and always check the tool, cable and plug before use. Have damages only

repaired by specialists. Insert the plug into the socket only when the tool switch is off.

Modifications of the tool are prohibited.

Unplug the tool and make sure that the switch is off if the tool is not under supervision, e.g. during preparation

and take-down works, at power failures, for insertion or mounting accessories.

Unplug the tool if is stops for any reason. So you avoid sudden starts in unattended condition.

Do not use the tool it its shell, switch, cable or plug are damaged.

Always lead the mains and extension cables as well as the dedusting hose from the tool to the back.

Electrical tools have to be inspected visually by a specialist in regular intervals.

On using the tool, in no case cooling water may seep into the motor or the electric components.

If water comes out of the drainage hole at the gear neck, stop your work and have the tool repaired by an

authorised service centre.

Perform overhead drilling only with suitable protective appliances (water catcher).

After interruption of your work, restart the tool only after having made sure that the drill bit is moving freely.

The tool may be used only in two-hand operation or with the drill rig.

Keep the handles dry, clean, and free of oil and grease.

Do not touch rotating parts.

Persons under 16 years are not allowed to use the tool.

During use, the user and other persons standing nearby have to wear suitable goggles, helmets, ear

protectors, dust mask, protective cloves and boots.

During manual operation, always hold the tool with both hands and be fall-safe. Consider the tool’s

reaction torque in case of blocking.

Always work with concentration. Always work in a carefully considered way and do not use the tool if

you are lacking consideration.

For further safety instructions, see the enclosure.

The DB 1700 N is designed according to protective class II. For the user’s safety, the tool may be operated only

with a leakage current protector. That is why the tool includes an integrated PRCD protective switch in an earth

contact socket.

!Attention!

The PRCD protective switch must not lay in water.

PRCD protective switches must not be used to switch the

tool on and off.

Before starting your work, check the proper function by

pressing the TEST button

Use only three-conductor cable with earth conductor and sufficient cross section (ref. to table). Too small a cross

section may cause malfunction of the tool.

Recommended minimum cross sections and maximum cable lengths

Mains voltage Cross section in sq. mm

1.5 2.5

110V 20 m 40 m

Prior to putting the tool into operation, check the mains voltage for conformity with the requirements of the tool’s

nameplate.

Voltage variations between + 6 % and – 10 % are permissible.

The tool includes a start-up speed limiter to prevent fast expulsion fuses from unindented responding.

Additional Handle

For manual drilling, the DB 1700 N may be used only together with its additional handle which comes with the

tools. Place it on the gearing collar from the front and fix it by counterclockwise rotation.

Switching ON and OFF

Short-time operation

ON: Press the ON/OFF switch

OFF: Release the ON/OFF switch

Long-time operation

ON: Keeping the ON/Of switch pressed, push in the arrestor button.

OFF: Press and release the ON/OFF switch again.

Electrical Connection

!Attention!

Use the arrestor button only during operation with drill rig.

Its use during manual operation is not allowed.

If the machine stops for any reason or due to power failure,

immediately release the arrestor button by pressing the

ON/OFF switch.

If this button is not released, the tool may unintendedly

restart if the PRCD protective switch is operated and cause a

danger to the user.

Changing Gears

Choose the proper speed according to the drill bit size used.

Select at the speed selector by pressing-in, shifting and engaging.

If the selector is on “o” position, the speed can vary from 0 to 800 rpm.

If the selector is on “oo” position, the speed can vary from 0 to 1570 rpm.

CAUTION: - always check the drill bit manufactures recommendation

for use

- gear shifting only when the machine is stopped and

clockwise

Manual Drilling

For wet drilling, we recommend the use of a dimpling aid with water removal (order No. 35847).

This type is a must for overhead drilling.

Insert the gas spring with the water collecting ring

and the guide ring appropriate for the drill bit

diameter into the tension disk. Shift the gas spring up

to complete coverage of the bit segments by the

water collecting ring. Tighten the wing screw.

On drilling overhead, make sure that the water

supply is opened only after having switch the water

remover on and the removing unit was fixed to the

wall or ceiling.

Open the ball valve and switch the tool on.

Hold the tool tight with both hands. Locate the tool slightly inclined. Once the drill bit is in the material (approx. 1/8

to 1/4 of the circumference), bring the tool into an angle of 90 degrees and continue drilling.

Take care that the drill bit is not out of line.

Advance the tool according to bit diameter and machine power. Observe the LED in the handle.

If it lights red, reduce your pressing force.

In case the bit gets jammed, to not dry to release it by switching the tool on and off. This would cause premature

wearing of the safety clutch. Switch the tool off immediately and unfix the drill bit by turning to the left or right using

an appropriate open-end wrench. Cautiously pull the tool out of the borehole.

Overload Protection

To protect the user, motor and drill bit, the DB 1700 N is equipped with a mechanical, electrical and thermal

overload protection.

Mechanical: In case of sudden jamming of the drill bit, the drilling spindle is unclutched from the motor by

means of a slip clutch.

Electrical: To warn the user against overstressing the tool by applying to high an advance force, the handle

includes a LED. It does not light during idle run or at normal load. At overload, it lights red. In that

case the tool most be stress-relieved. In case of longer non-observation of the rad indication, the

electronics will independently switch the tool off. After relieving is switching the tool off and on, the

work can be continued as normal.

Thermal: In case of permanent overload, a thermocouple protects the motor against destruction. In that case,

the tool switches off and can only be restarted after a certain cooling-down period (approx. 2

minutes). The cooling-down time depends on the temperature of the motor winding and ambient

temperature.

Safety Clutch

The slip clutch served for compensation of shocks and overload.

To keep its functionability, it should not slip for more than 2 seconds. In case of excessive wearing, it can be

replaced by an authorized service centre.

Drill Bits

Use only appropriate drill bits for the material to be drilled in. You can protect your tool by using only well balanced

drill bits without deformation.

Make sure that the diamond segments have sufficient cutting clearance towards the bit body.

Changing Drill Bits

Attention!

When you use or sharpen the machine, it might heat up enormously. You could burn your hands or get cut

or ripped by the segments. Therefore, always use protective gloves when changing the drill bit.

The drilling spindle has a right-hand thread.

To ease screwing on and off, always use a SW 32 open-end wrench at the drilling spindle.

Never use a hammer, because this may damage both the drill bit and the tool.

Some water-resistant grease on the drilling spindle threat or a copper ring between spindle and drill bit will

simplify removal of the drill bit.

Attention!

The bits may have got hot due to use or sharpening. There is a danger of burning ones hands or injuring oneself at

the segments’ edges.

When changing the drill bits, you should always wear protective gloves.

Care and Maintenance

Before the beginning of the maintenance- or repair works

you have to disconnect plug from the mains.

It is a must to unplug the tool before starting any service or repair works.

Repairs may be executed only by appropriately qualified and experienced personnel.

After every repair, the unit has to be checked by an electrical specialist.

According to its design, the tool requires a minimum of care and maintenance. However, the following maintenance

works and component checks have to be performed in regular intervals:

Clean the tool after completion of your work. Apply some grease onto the drilling spindle thread. The ventilation

slots must always be clean and unclogged. Make sure that now water gets into the tool during cleaning.

After the first 150 hours of operation, the gearing oil must be changed.

Gearing oil changes bring about an essential increase of the tool’s lifetime.

After approx. 250 hours of operation, the carbon brushes must be checked and, if necessary, be replaced by

an authorized specialist (use only original carbon brushes).

Once per quarter of a year, an electrical specialist should check the switch, cable and plug.

Environmental Protection

Raw material recycling instead of waste disposal

To avoid damages in transit, the tool is supplied in a sturdy packing. The packing as well as the tool and its

accessories are made of recyclable materials which enable environmentally friendly and sortwise disposal by the

local reception points.

Only for EU countries

Do not dispose of electric tools together with household

waste material!

In observance of European Directive 2002/96/EC on waste

electrical and electronic equipment and its implementation

in accordance with national law, electric tools that have

reached the end of their life must be collected separately

and returned to an environmentally compatible recycling

facility.

Noise Emission

The indication of noise emission is measured after DIN 45 635, part 21. The level of acoustic pressure on work site

could exceed 85 dB (A); in this case protection means must be used.

Wear ear protectors!

Hand-arm vibration :

Measured values determined according to EN 60 745.

Vibration emission value ah 3,3 m/s2

Uncertainty K 0,5 m/s2

The declared vibration emission level represents the main applications of the tool. However if the tool is used for

different applications, with different accessories or poorly maintained, the vibration emission may differ. This may

significantly increase the exposure level over the total working period.

An estimation of the level of exposure to vibration should also take into account the times when the tool is switched

off or when it is running but not actually doing the job. This may significantly reduce the exposure level over the

total working period.

Identify additional safety measures to protect the operator from the effects of vibration such as: maintain the tool

and the accessories, keep the hands warm, organisation of work patterns.

Warranty

According to the general supply conditions for business dealings, suppliers have to provide to companies a

warranty period of 12 months for redhibitory defects. (To be documented by invoice or delivery note).

Damage due to natural wear, overstressing or improper handling are excluded from this warranty.

Damages due to material defects or production faults shall be eliminated free of charge by either repair or

replacement.

Complaints will be accepted only if the tool was returned in non-dismantled condition to the manufacturer or an

authorized Eibenstock service centre.

Declaration of Conformity

On sole responsibility we declare that this product is in conformity with the following standards and standard

documents:

EN 60 745, EN 55 014, EN 61 000,

according to the regulations 2006/95/EC, 89/336/EEC, 98/37/EC

Your Distributor:

KERN-DEUDIAM GmbH

Industriestr. 24

33161 Hövelhof

Germany

Tel: +49 5257 – 507 - 0

Fax: +49 5257 – 507 - 40

www.kern-deudiam.de

[email protected]

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