DR. BENDER EBM 33 FNT User manual

DR. BENDER GmbH
Innovative Elektrowerkzeuge
Manual for
drilling motor EBM 33 FNT
EBM 33 SNT
230 V
Valid from 03.2018 Art.-Nr. 201191 Subject to alterations
201192
All rights reserved
DR. BENDER
GmbH • D-75382 Althengstett • Tel [phone] • Fax [phone]
Our website address is: http://www.dr-bender.de• eMail: [e-mail]

2
Conformity Declaration
DR.BENDER GmbH
Innovative Elektrowerkzeuge
EC declaration of conformity (EG-RL 2006/42/EG)
Hereby the nmanufacturer
Dr. Bender GmbH
Industriestrasse 22
75382 Althengstett
declares for the products
EBM 33 FNT
EBM 33 SNT
The named product conforms to the following Council Directives on approximation of laws of the EEC
Member States:
-Council Directive for machinery (2006/42/EC)
-Council Directive for Electromagnetic compatibility (EMC) (2004/108/EG)
-Low Voltage Guide Lines (2006/95/EG)
Conformity with the requirements of this Directives is testified by complete adherence to the following stan-
dards:
EN 50144-1
EN 50144-2-1
EN 55014-1
EN 61000-3-2
EN 61000-3-3
EN 55014-2
EN 61029-1
The instructions contained in the operating manual for installation and start up the machine have to be fol-
lowed.
Authorised Person for Documentation:
Min Wei
c/o Dr. Bender GmbH
Industriestrasse 22
75382 Althengstett
Deutschland
DR.BENDER GmbH Althengstett, 30.07.2018
Industriestraße 22
D-75382 Althengstett
Tel. [phone], Fax [phone]
Min Wei, Managing Director
This Declaration does not include Assurance of Product Properties.
The Safety Instructions of the enclosed Product Documentation have to be respected.

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Contents
Seite
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 EBM 33 FNT 7
4.2 Dimensions EBM 33 SNT 7
4.3 Technical data 7
4.4 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 After approx. 250 hours of use 11
7.4 Quarterly 11
8.0 Speed adjustment dependent on the cutting speed 12
9.0 Warranty 13
10.0 General safety instructions 13
11.0 Spare parts list 14
11.1 Stone drilling machine complete EBM 33 FNT 14
11.2 Stone drilling machine complete EBM 33 SNT 16
11.3 Motor complete EBM 33 F 18
11.4 Motor complete EBM 33 S 20
11.5 Gear complete 22

4
Warning
The safety instructions set out in this operating manual must be followed at all
costs.
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
Gear control
Air outlets Air inlets
Nameplate
Drill-spindle
Water connection
Switch on/off
Circuit breaker
and PRCD switch
Air connection

5
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
Warning
The core drills comply with the regulations issued by the ”Stone and Earth” Profes-
sional 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 connected to the 230 V mains
- direct using a personal safety switch (residual current-operated circuit-breaker or PRCD), or
- using a coded (1h) plug to a safety box (IP 44) with a residual current-operated circuit-breaker.
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 devia-
tions of ± 5 % and/or voltage deviations of ± 2 % are permissible. Repairs must
only be completed by quality persons who have suitable training and qualifica-
tions.
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.
1.1 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 EBM 33 FNT
4.2 Dimensions EBM 33 SNT
4.3 Technical Data
Rated Voltage 230 V
Current consumption 9 A
Power requirement 2200 W
Frequency 50 – 60 Hz
Idling speed 830 / 2200 / 4600 min
-1
Full speed 520 / 1400 / 2900 min
-1
Output rating 1400 W
Torque 27 / 12 / 6 Nm
Drilling diameter 15 – 150 mm
Weight EBM 33 FNT 5,8 kg
Weight EBM 33 SNT 5,8
Core bit connection UNC 1 ¼ / R ½ “
Overload coupling torque 12 Nm

8
4.4 Noise emissions and vibrations [EN 50144]
Noise level Noise level Vibration
dB(A) dB m/s
2
88 101 < 2,5
5.0 Commissioning
Check that the mains voltage is identical with the voltage specified on the model plate.
Stand-mounted:
Secure the core drilling machine and the water collection device on the drill stand with a reverse lock. The
drill stand should have high rigidity and precise, low-play guides. Ensure that the core drilling machine axis
is parallel to the drill stand axis.
Insert the core bit and set the speed. Setting instructions are given on page 12.
Connect the water supply. Important: Do not exceed the max. water pressure of 3 bar.
Connect the core drilling machine to the mains via an RCCB box and a code plug 1 h or a PRCD safety
switch.
Manually controlled:
When drilling a hole ensure that you are on a secure surface. Make particularly sure the core bit is not bent
during the drilling process and hold the core drilling machine as rigid as possible. Concentrate hard on the
work since if the core bit suddenly blocks, despite the low setting of the safety slip clutch, high forces may
be generated. If you let go of the core drilling during the drilling process, you may suffer serious injury.
Only used three-core extension cables with a protective conductor and an adequate cross-section. If the
cross-section is too low you may suffer excessive power loss and the motor and cable may overheat. An
extension cable must be secured with an overload switch. Recommended cable cross-sections:
Rated current = 9 A
Cable length m 7.5 15 25 30 45 60
Cable cross-section mm
2
2.5 2.5 2.5 2.5 2.5 4
When drilling a hole ensure that you have sufficient cooling water. Only use clean tap water, do not use
dirty or waste water. Adjust the supply to the core bit diameter and drive rating of the core drill so that you
do not exceed the rated current.

9
5.1 Changing gear
Warning
Never change gear using force and only do so when the machine is slowing
down or at a standstill.
Move the gear switch handle by approx. 40° to the next higher or lower gear. If necessary (if it is difficult to
engage the gear) turn the drive spindle briefly by hand until the gear engages easily. Never use tools (pli-
ers, hammer, etc.) to change gear since otherwise gear damage will be inevitable.
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 UNC 1 ¼“ or R ½ “ 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 200 V),
- 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.
-Only drill above your head with suitable safety equipment (water collector), RCD and transformer
protection class II.
-Connect dust extraction if required.
- 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 op-
erating 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.

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7.0 Servicing and care
Warning
Before starting any servicing or repair work always disconnect the mains plug.
After all repairs you must have the core drilling machine inspected by an elec-
trician (statutory regulation pursuant to VBG4 since 1.1.1990).
7.1 Daily care
Ensure that no water escapes from the overflow hole. This will cause gear damage and may reduce the
electrical safety of the core drilling machine. In this case please contact an authorised service centre.
Inspection the machine for signs of damage to the switch, mains lead or plug connector.
After completing the drilling work clean the core drilling machine. Grease the core bit mounting thread. The
ventilation slits must be kept clean and open at all times. Ensure that no water gets into the core drilling
machine whilst you are cleaning it.
To ensure that the sealing function is maintained, oil the drill spindle:
-Disconnect the core drilling machine from the water supply. Open the water connection shut-off
cock and insert a drop of oil, close the shut-off cock, place a few drops of oil into the overflow hole
and turn the machine briefly by hand.
7.2 After approx. 150 hours in use
After the first 150 hours of use, the gearbox oil must be changed.
7.3 After approx. 250 hours in use
Have the carbon brushes checked, and replaced if necessary, by an electrician.
- Remove the screws. Pull the cap off the motor casing. Remove the carbon brushes screws,
raise the carbon brushes retaining springs and take out the carbon brushes. Clean the carbon
brush holder and collector with a paintbrush.
- Fit new carbon brushes following the above instructions in reverse. Position the cap and se-
cure it with the screws. Fit the cap on the motor casing by tapping it gently with a rubber mal-
let or the like. Tighten the screws. Release the stress by tapping the cap twice.
Avoid adjusting the carbon retaining springs.
Only use original spare parts.
7.4 Quarterly
Have the cable, switch and plugs inspected by an expert (pursuant to VBG4) and document the process.
Replacing the gearbox oil will considerably extend the service life of the gear.

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8.0 Speed adjustment dependent on the cutting speed
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.
3 4 5 6 7 [m/s]
15 3820 5093 6366 7639 8913 3.Gang
20 2900 3820 4775 5730 6685 3.Gang
25 2292 2900 3820 4584 5348 3.Gang
30 1910 2546 2900 3820 4456 3.Gang
35 1637 2183 2728 3274 3820 3.Gang
40 1400 1910 2387 2900 3342 3.Gang
45 1273 1698 2122 2546 2900 3.Gang
50 1146 1528 1910 2292 2674 2 oder 3
55 1042 1400 1736 2083 2431 2 oder 3
60 955 1273 1592 1910 2228 2 oder 3
65 881 1175 1400 1763 2057 2 oder 3
70 819 1091 1364 1637 1910 2 oder 3
75 764 1019 1273 1528 1783 2 oder 3
80 716 955 1194 1400 1671 2 oder 3
85 674 899 1123 1348 1573 2 oder 3
90 637 849 1061 1273 1485 2 oder 3
95 603 804 1005 1206 1400 2.Gang
100 573 764 955 1146 1337 1 oder 2
110 520 694 868 1042 1215 1 oder 2
120 477 637 796 955 1114 1 oder 2
130 441 588 735 881 1028 1 oder 2
140 409 546 682 819 955 1 oder 2
150 382 520 637 764 891 1 oder 2
160 358 477 597 716 836 1 oder 2
170 337 449 562 674 786 1 oder 2
180 318 424 520 637 743 1.Gang
190 302 402 503 603 704 1.Gang
200 286 382 477 573 668 1.Gang
210 273 364 455 546 637 1.Gang
220 260 347 434 520 608 1.Gang
230 249 332 415 498 581 1.Gang
240 239 318 398 477 557 1.Gang
250 229 306 382 458 535 1.Gang
260 220 294 367 441 520 1.Gang
Bohrø Beton Beton Gestein
[mm]
armiert

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9.0 Warranty
In keeping with our terms of sale, we offer a warranty for twelve months from the date of sale. This refers to
the free repair of material and workmanship defects, which were verifiably caused before the sale.
An original purchase document must always be submitted in case of a warranty claim. It has to contain the
full address of the dealer, the date of purchase and the type designation of the product. The operating in-
structions of the particular product and the safety instructions must have been followed.
Damages resulting from operational faults cannot be acknowledged as warranty cases.
The products of the manufacturer have been developed and produced for specific applications. No war-
ranty claim is accepted in case of non-compliance with the due employment according to the operating in-
structions, in case of the employment for other purposes than originally intended or the employment of in-
adequate accessories.
The periodical maintenance and cleaning of the products according to the directions of the operating in-
structions is absolutely necessary. The intervention of third persons (opening the machine) renders any
warranty claim void.
Maintenance and cleaning operations cannot be claimed on the basis of warranty.
Make sure only original spare parts and original accessories are used. They are available at the authorized
specialized product dealer. If non-original parts are used, consequential damages and increased hazard
cannot be ruled out. The producer is not liable for such damages. Disassembled or partially disassembled
hand saws and those repaired with non-original parts are excluded from the warranty.
Certain components, such as carbon brushes, ball bearings, switches, power-supply lines, gaskets, etc.,
are exposed to usage dependent or to normal wear. These wearing parts are not object of this warranty.
Wearing parts are marked on the spare parts lists.
10.0 General safety instructions
The general safety instructions can be found in the supplied safety instruction booklet.

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11.0 Spare parts list
11.1 Stone drilling machine complete EBM 33 FNT

15
Item Art. No. Description No.
1 201191 Stone drilling machine complete EBM 33 FNT 1
2 200941 Motor complete 1
3 301873 Gear complete 1
4 800076 Locking washer 3
5 901012 Hexagon socket head cap screw 3
6 400961 Handle complete 1
7 150103 Claw clutches 1
8 802693 Water connection complete 1 **
9 802692 Hose complete 1
10 800028 Sealing ring 3
11 800023 Ball cook complete 1
12 800020 Nipple 1
13 800040 O ring 1
14 801937 Claw clutches 1
Wearing parts**

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11.2 Stone drilling machine complete EBM 33 SNT

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Item Art. No. Description No.
1 201192 Stone drilling machine complete EBM 33 SNT 1
2 200943 Motor complete 1
3 301873 Gear complete 1
4 800076 Locking washer 3
5 901012 Hexagon socket head cap screw 3
6 400961 Handle complete 1
7 150103 Claw clutches 1
8 802693 Water connection complete 1 **
9 802692 Hose complete 1
10 800028 Sealing ring 3
11 800023 Ball cook complete 1
12 800020 Nipple 1
13 800040 O ring 1
14 801937 Claw clutches 1
Wearing parts**

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11.3 Motor complete EBM 33 F

19
Item Art. No. Description No.
1 200941 Motor complete 1
2 200397 Motor casing 1
3 401300 Magnet casing 1
4 400888 Brush bridge 1
5 800076 Locking washer 6
6 900339 Hexagon socket head cap screw 2
7 800948 Carbon brush 2 **
8 900183 Spring washer 4
9 900407 Cheese-head screw 2
10 900231 Washer 1
11 900181 Spring washer 1
12 900412 Flat head screw 1
13 401101 Control box complete 1
14 401100 Control box 1
15 801200 Spirit level 1
16 800139 Circuit breaker 1
17 800134 Protecting cap 1 **
18 900689 Hexagon socket head cap screw 4
19 801211 Handle half 1
20 801219 Equipment switch 1
21 801239 Equipment switch – electronic optional 1
22 801222 Cable complete 1 **
23 801220 Cable grommet 1
24 801210 Interference-suppression capacitor 1
25 801221 Handle half 1
26 900699 Strain-relief clamp 2
27 801074 Cross recessed pan head tapping screw 1
28 900623 Softpack 2
29 901405 Cross recessed pan head tapping screw 2
30 401042 Balanced armature with fan 1
31 900001 Grooved ball bearings 1 **
32 900483 Grooved ball bearings 1 **
33 801988 Shim ring 1
34 900708 Shaft sealing ring 1 **
35 800266 Ball bearing compensating disc 1
36 401666 Air-flow-plate 1
37 401099 Bearing cap complete 1
38 200549 Bearing cap 1
39 800910 Spirit level 1
40 401098 Insulation 1 **
41 800089 O ring 1 **
42 900756 Hexagon socket head cap screw 4
43 801017 Information plate 1
Item Art. No. Description No.
44 201049 Intermediate cover 1
45 900495 Grooved ball bearings 1 **
46 900170 Needle sleeve 1 **
47 800099 O ring 1 **
48 801346 O ring 3 **
Verschleißteile**

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11.4 Motor complete EBM 33 S