DR. BENDER DX 6 DOLPHIN Bedienungsanleitung

DR. BENDER GmbH
Innovative Elektrowerkzeuge
Manual for
drilling motor
DX 6
Dolphin
400 V 3~
Valid from 09.2004 Art.-Nr. 200674 Subject to alterations
Alle Rechte vorbehalten / All rights reserved
DR. BENDER GmbH • D-75382 Althengstett • Tel 07051-9291-0 • Fax 07051-9291-91

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Conformity Declaration
DR.BENDER GmbH
Innovative Elektrowerkzeuge
EC Conformity Declaration
for DR.BENDER stone processing machine
DX 6 Dolphin
DR.BENDER GmbH, as manufacturer, hereby declares that the electrical stone processing machine men-
tioned above comply with the requirements of the following guidelines:
- Machine guidelines (98/37/EC)
-Electromagnetic compatibility (EMV) (89/336/EEC)
-Low voltage guideline (73/23/EEC)
The following standards were applied for evaluating the machines:
a) with regard to the machine guidelines:
VDE 0740 21-22: 1994-1991
VDE 0701 Part 1: 1993
VDE 0702 Part 1: 1995
DIN EN 50144-1: 1999
DIN EN 50144-2-1: 2000
b) with regard to electromagnetic compatibility
Interfering emissions
DIN EN 55014-1: 2000 + A1: 2001 = VDE 0875 Part 14-1
DIN EN 61000-3-2: 2000
DIN EN 61000-3-3: 1995 + Cor.1: 1997 + A1: 2001
Interference immunity
DIN EN 55014-2: 1997 + A1: 2001 = VDE 0875 Part 14-2
c) with regard to the low voltage guideline
EN 61029-1: 2001
DR.BENDER GmbH Althengstett, 29.04.2003
Industriestraße 22
D-75382 Althengstett
Tel. 07051/9291-0, Fax 07051/9291-91
B. Brehm, Geschäftsleitung
This declaration implies no assurance of properties.
Please observe the safety regulations of the attached product documentation.

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Contents
page
Conformity declaration 2
Contents 3
1.0 Symbol- and Pictograph description 4
1.1 Function description 4
2.0 General instructions 5
2.1 Application 5
2.2 Safety 5
3.0 Transport and storage 6
3.1 Transport 6
3.2 Storage 6
4.0 Main dimensions and technical data 7
4.1 Dimensions 7
4.2 Technical data 7
4.3 Noise emissions and vibrations [EN 50144] 8
5.0 Commissioning 8
5.1 Changing gear 9
5.2 Safety coupling 9
5.3 Core bits 9
5.4 To change a core bit 9
6.0 Safety instructions 10
7.0 Servicing and care 11
7.1 Daily care 11
7.2 After approx. 150 hours of use 11
7.3 Quarterly 11
8.0 Speed adjustment dependent on the cutting speed 12
9.0 Warranty 13
10.0 General safety instructions 14
11.0 Spare parts list 16
11.1 Motor complete 16
11.2 Gear complete 18
11.3 Connection cables and accessories 20

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Warning
It is compulsory to observe the safety instructions included in this manual!
Special designs and versions may differ from the standard models in terms of their technical de-
tails. If any points are unclear, we urgently recommend that you contact DR.BENDER GmbH, indi-
cating the machine type and machine number.
1.0 Symbol- and Pictograph description
This sign tells you rules, if you not pay attention for this your health and the function of
the machine is in danger. You have no warranty if the machine breaks down because
you not looking about this.
1.1 Function description
Nameplate
Water connection
Gear control
Switch onn/of
f
Drill-spindle
Circuit breaker

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2.0 General instructions
2.1 Application
The core drills can be used for the purposes outlined by the data on the model plate. If you are using spe-
cial machines, the details in the quotation and order confirmation also apply.
The core drills are supplied as standard in protection class I, only this can guarantee the full high quality
production of the residual current-operated circuit-breaker or PRCD switch.
If you use suitable core bits, you will be able to drill holes in the most diverse material types:
- Concrete (even if it contains thick reinforcement steel)
- Sandstone and limestone
- All building materials for solid walls
- Asphalt floors
The core drills comply with the regulations issued by the ”Stone and Earth” Professional Association issued
in July 1989. They are machines of category II, which means that they must be placed on stands and be
stable (pursuant to DIN 57100 or VDE 0100), the stand must be equipped with
- a reversing block, and
- a water suction device.
The machine must be
- CEE gronded at one duly electrical outlet (CEE 5pol., 3P +PE 16 amps – 400V) be attached. The
zero pus isn’t required.
- being operated to ensure the protection of the operation person with a preconnected FI protection.
2.2 Safety
Warning
Before using the machine for the first time, check that the conformity of the data
on the model plate with the mains voltage and frequency. Voltage deviations of ±
5 % and/or voltage deviations of ± 2 % are permissible. Repairs must only be
completed by quality persons who have suitable training and qualifications.
The following points are to be given special attention:
- the technical data and details of the permitted use of the machine (commissioning, ambient and
operating conditions) which are set out in the catalogue, the operating manual, the model plate
data and other product information,
- the relevant accident prevention regulations
- the correct use of tools
- the use of personal safety equipment

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3.0 Transport and storage
3.1 Transport
Warning
The core drills are to be checked for signs for transport damage on receipt. Any
damage must be documented in writing.
3.2 Storage
If possible, the storage site should be dry, clean and have a constant temperature. To ensure that the film
of lubricant in the bearings and sealing system is not lost, the motor shaft should be turned through several
revolutions by hand after a lengthy period of storage, for example at monthly intervals. The roller bearings
in the motors should be replaced (or regreased) if the period between delivery and commissioning is over
four years. If the machines are stored in adverse conditions, this period may differ considerably.

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4.0 Main dimensions and technical data
4.1 Dimensions
4.2 Technical data
Rated voltage 400 V
Current consumption 10,5 A
Power requirement 6000 W
Frequency 50 – 60 Hz
Idling speed 160 / 430 / 750 min-1
Full speed 160 / 430 / 750 min-1
Output rating 4200 W
Torque 280 / 120 / 65 Nm
Drilling diameter 100 – 450 mm
Safety class IP 56 -
Coolant water -
Weight 24,5 kg
Core bit connection UNC 1 ¼ “
Overload coupling torque 320 Nm

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4.3 Noise emissions and vibrations [EN 50144]
Noise level Noise level Vibration
dB(A) dB m/s2
73 85 < 2,5
5.0 Commissioning
Check that the mains voltage is identical to the voltage specified on the model plate.
Secure the core drill and the water collector to the drilling stand with its reverse block. The drilling stand
should be as rigid as possible and have precise, low-play guides. Ensure that the core drill axis is parallel
to the axis of the drilling stand.
Insert the core bit and set the speed. The setting instructions are on page 12.
Connect the water supply. Important: Do not exceed the maximum water pressure of 3 bar.
Connect the core drill to the mains using a residual current-operated circuit-breaker box and 6 h coded
CEE plug. Only use three-core extension cables with a protective conductor and an adequate cross-
section. If the cross-section is too low, you may lose excessive power and result in the motor and cable
overheating. An extension cable must have an overload cut-out switch. Recommended cable cross-
sections:
Rated current = 10,5 A
Cable length m 7,5 15 25 30 45 60
Cable cross section mm22,5 2,5 2,5 2,5 2,5 4
The drilling motor is water-cooled. Look after sufficient cooling water when drilling therefore. The drilling
motor must be operated during the full load with at least 1 liters of water per minute. Use only pure tapwa-
ter, no dirt or sewage, otherwise the drilling motor will damaged. Adjust the feed speed to the core bit di-
ameter and the drive rating of the core drill so that the rated current is not exceeded.

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5.1 Changing gear
Warning
Never change gear using force and only do so when the machine is slowing
down or at a standstill.
To change into the next higher or lower gear, move the gear-change lever through an angle of approx. 50°.
If necessary (if the gear is difficult to engage), turn the drive spindle briefly by hand until the gear engages
easily.
Do not use any tools (pliers, hammer, etc.) to change gear since otherwise gear damage is a natural con-
sequence.
5.2 Safety coupling
The values set out in the table are theoretical values and may be used to provide a rough guide for gear
changing. Since a whole range of other parameters also plays a major role in adjusting the speed, we can-
not offer any guarantee if the tool is damaged when using the values in the table. Drilling work for which the
speeds are outside the range of the core drill (values printed in italics), should only be completed with ex-
treme care and by trained personnel.
5.3 Core bits
All core bits with a connection thread of 1 ¼ ” UNC can be used.
Adapters can be supplied to allow core bits with other connection systems to be used.
Only use core bits that are suitable for the type of stone.
You will keep the core drill in good condition if you only use core bits that are concentric and not deformed
ones.
Ensure that the diamond segments have an adequate undercut against the core bit body.
Warning
To use wrong tools or accessories is danger for your life.
5.4 To change a core bit
The drill spindle has a right-handed thread.
Always use a 32 mm open-ended spanner to hold against the drill spindle.
Never release the core bit with (hammer) blows since this will damage the core drill.
The core bit can be removed more easily if you apply a little waterproof grease to the drill spindle thread.

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6.0 Safety instructions
Important
Only use the core drill under supervision. Disconnect the mains plug and check
that the switch has been turned off,
- if you intend to leave the core drill unsupervised,
- for attachment and disconnection work,
-if the voltage drops (below 340 V),
-at uneven mains voltage (phase asymetrical) or interruption of a phase (phase failure),
- for adjustments or for fitting an accessory,
Switch off the machine if it stops for any reason. This will prevent its starting suddenly when it is not under
supervision.
Do not use the tool if
-part of the casing is missing or defective,
- If water drips out of the overflow hole, stop work and have the core drill inspected by an authorised
service contractor.
- After a fault do not switch on the machine again until the core bit can be turned easily.
- Check the area you wish to drill with a line detector to prevent drilling through electric cables, water
or gas lines, etc.
- the switch, lead or plug connector has suffered damage (conduct a visual inspection every day).
-Cooling water must not be allowed to ingress into the motor or the electrical components when
operating the core drill in any position.
Do not expose the tool to rain and use not in humidity or wet environment. Use a good lightning. Do not use
the tool near flammable fluids or gase air mixes.
Dieses Handbuch passt für folgende Modelle
1
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