DR. BENDER SXM-V User manual

DR. BENDER GmbH
Innovative Power Tools
Operating Manual
Drive unit SXM-V
HF III
Issued 05.2017 Subject to change
Alle Rechte vorbehalten / All rights reserved
DR. BENDER GmbH • D-75382 Althengstett • Tel [phone] • Fax [phone]
We are on the internet at http://www.dr-bender.de• email: [email protected]e
Art no.: 201185

2
Declaration of conformity
DR.BENDER GmbH
Innovative Power Tools
EC – Declaration of conformity for machines
Herewith, the manufacturer,
Dr. BENDER GmbH
Industriestrasse 22
75382 Althengstett
declares that the machine
SXM
SXMSXM
SXM-
--
-V
VV
V
conform is with the aforementioned Directive and the following Directives
- Machinery Directive of the European Parliament and Council (EC-RL 2006/42/EC)
-Electromagnetic compatibility (EMC) (2004/108/EC)
-Low Voltage Directive (2006/95/EC)
The following harmonised standards have been used for assessment of the appliance:
EN 50144-1
EN 50144-2-1
EN 55014-1
EN 61000-3-2
EN 61000-3-3
EN 55014-2
EN 61029-1
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
Page
Declaration of conformity 2
Contents 3
1.0 Symbol and pictogram description 4
1.1 Function description 6
2.0 General instructions 7
2.1 Technical description 7
2.2 Applications 8
2.3 Safety 8
3.0 Transport and storage 9
3.1 Transport 9
3.2 Storage 9
4.0 Main dimensions and technical data 10
4.1 Dimensions 10
4.2 Technical data 10
4.3 Noise emission and vibration [EN 50144] 10
4.4 Operating temperatures 10
5.0 Commissioning 11
5.1 Mains connection 11
5.2 Water connection 11
5.2.1 Dry cutting by bypass solution 11
5.3 Handle adjustment 12
5.3.1 Cleaning / Changing the handle 13
5.4 Quick release coupling 13
5.5 Saw blades and drill bits 14
6.0 Safety instructions 14
7.0 Repair and maintenance 15
7.1 Daily maintenance 15
7.2 Quarterly 15
8.0 Speed setting depending on cutting speed 15
9.0 Warranty 16
10.0 General Safety Instructions 16
11.0 Spare parts lists 17
11.1 Drive unit SXM-V 17
11.2 Motor complete 18
11.3 Gear complete 20
11.4 Handle complete 22

4
Attention
The safety instructions included in this operating manual must be followed!
Custom models and design variants may deviate from the basic type in
technical details. In the event of any discrepancies, we recommend that you contact DR.BENDER
GmbH urgently. Always give the machine type and machine number in any correspondence.
1.0 Symbol and pictograph description
Warning
Indicates instructions which may endanger your health or the functionality of the unit if
they are not followed. The warranty shall become null and void if you cause defects to
the unit by non-compliance with these instructions.
Warning
Warning of dangerous electrical voltage.
Before work is performed in this specially marked section, the installation of the device
must be separated completely from current (voltage) and must be secured against
unintentional power ON.
Disregard can lead to severe or deadly injuries.
Recycling
Please direct waste to recycling.
Disposal
The customary and regional laws shall be observed for disposal.

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Safety signs on the machine
Wear safety shoes
Wear gloves
Wear a safety helmet
Wear protective goggles
Wear ear protection
Wear a breathing mask
Pull the power plug before work on the device
Read the instructions

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1.1 Function description
Quick release coupling
On /off switch
Lock button for front
handle
Safety gate
Lock button for rear
handle

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2.0 General instructions
2.1 Technical description
The BELUGA SXM-V represents a whole new generation of drive units for stone cutting. The exception-
ally comprehensive modular system offers the flexibility needed today when performing cutting work in con-
crete and stone. To achieve this, newly developed high-frequency motor parts are used in the motor. The
frequency range is controlled by the frequency converter from 0 - 1000 Hz integrated into the Powerbox. At
1000 Hz, the rotor reaches a speed of 30.000 min
-1
. A major benefit lies in the exceptional weight / power
ratio (motor power output = 8 kW / weight = 6.5 kg -> 1.2). Using conventional technology e.g. type
BBM33extra (motor power output = 2.4 kW / weight = 13.5 kg -> 0.17) It means that the weight of the ma-
chine has been reduced sevenfold using the high frequency technology. We have succeeded in running the
Powerbox as well as the drive units on a 230V single phase network or on a 400 V three-phase network.
This means that only one piece of equipment is needed for use on both voltage sources. Further benefits
lie in the stepless speed control. This enables the best speed to be assigned to each tool diameter, in order
to attain the best possible cutting speed on the tool. During work, the speed can be steplessly reduced if
you come up against steel reinforcements and thus can be optimised according to the progress of the work.
Here, you can run the unit at much higher cutting speeds (Attention! depends on the tool) and in doing so,
the progress of the job can be speeded up by up to 150%. With conventional machines, the torque drops
very sharply at the higher speeds. Therefore, this advantage does not apply to conventional machines.
Complete drill system.
ARRA DRILL HOLDER
- drilling with tripod, drill diameter of up to 250 mm
ARRA PLANETARY GEARBOX
- drilling with tripod, drill diameter of up to 400 mm
- bidirectional planetary gearbox drill diameter from 6
mm
ARRA HAND DRILL ATTACHMENTS
- drill hands-free wet or dry
drill diameter of up to 150 mm
Complete saw system.
SQUATINA
- flush cut with chain saw,
depth of cut of up to 170 mm
KOGIA
- cutting with ring saw, depth of cut of
up to 300 mm
Complete system protected housed in trolley. Can be used im-
mediately on a building site.
ESPADA
- cutting with chain saw, depth of cut of up
to 600 mm

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Further to this, the Beluga SXM-V
has a completely redeveloped overload-
coupling that transfers the supplied
torque through a statically sealed wall.
Thus there is no need for the contact seal
that has previously been required. This
drastically increases the service life of the
entire machine and the maintenance
intervals are significantly longer. The
overload coupling is also much more
elastic than traditional systems and does
not have a slip-and-stick effect. Since the
torque is transferred without contact, no
wear at all occurs on the coupling. The activation of the coupling is also monitored by a sensor. When
triggered, this determines whether the motor is turning and the gearbox is standing, and the motor is
immediately stopped. This protects the operator and the machine against excessive heating of the
coupling. After the machine is successfully stopped,, it can be set in motion again by activating the start
lever again.
2.2 Applications
The drive units BELUGA and the related Powerboxes can be used according to the data attached to the
information plate. When you are using custom-built machines, the details on the quotation and the order
confirmation also apply.
The drive units and the Powerboxes are essentially Class I appliances, only this guarantees the full high-
quality protection of the residual current circuit breaker.
When suitable saw blades and drill bits are used, a wide range of materials can be cut:
- Concrete (even with strong reinforcement)
- Sandstone and limestone
- All building materials for solid walls
- Asphalt road surfacing
The machines must be connected to the Powerbox RX/SX 12.
2.3 Safety
Warning
Before commissioning, check that the mains voltage and frequency match the
data given on the information plate. ± 5 % voltage and/or ± 2 % frequency
deviation are permitted. Repairs may only be performed by suitably qualified
staff based on their training and experience.
Pay particular attention to:
-the technical data and information on the permitted use (commissioning, standard operating
conditions), which are included e.g. in the catalogue, the operating manual, the information plate
details, and other product information.
-the relevant accident prevention regulations
-the correct use of tools
-the use of personal protective equipment

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3.0 Transport and storage
3.1 Transport
Warning
The drive units must be inspected for transport damage after receipt.
Any damage present must be recorded in writing.
3.2 Storage
The storage location should be dry, clean, and at a constant temperature wherever possible. In order that
the lubrication film in the bearings and the seal systems does not separate, the drive shaft should be turned
several times manually after a lengthy storage period, e.g. at monthly intervals. The roller bearings of the
devices should be replaced (or re-lubricated) if the period between delivery and commissioning is more
than 4 years. This period will be significantly reduced if the storage conditions are unsuitable.

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4.0 Main dimensions and technical data
4.1 Dimensions
4.2 Technical data
Rated voltage 400V ~3 / 230V ~1 V
Current rating 15 / 16 A
Power consumption 10.000 / 3.200 W
Frequency 1000 Hz
Idle – Full load speed 0 – 2.800 min
-1
Power output 9.400 / 3.000 W
Torque 32 / 16 Nm
Weight 7,5 kg
Degree of protection IP 67 -
Cooling medium Water -
4.3 Noise emission and vibration [EN 50144]
Sound pressure level Sound power level Vibration
db(A) dB m/s
2
84 98 < 2.5
4.4 Operating temperatures
If the system is sufficiently cooled, the Beluga SXM-V attains to the cooling water temperature. The
plastic housing of the hand operated Beluga SXM-V attains temperatures of up to 35°C. Therefore,
hold the machine with the handles provided.

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5.0 Commissioning
5.1 Mains connection
Attention
Check whether the mains voltage matches the voltage given on the information
plate. Check whether the mains voltage matches the voltage given on the
information plate.
Remove the protective covers on the plug sockets. These protective covers are designed to protect the
socket against the ingress of water when the plug is not connected. This significantly increases the service
life of the high-quality cable sockets.
Connect the electrical power lead of the Beluga drive unit to the round socket located on the front of the
Powerbox. Lock the bayonet sleeve of the plug socket until you hear it click, in order to maintain the
required IP 67 protection.
5.2 Water connection
The water must first flow through the Powerbox, then through the drive unit, and only then to the saw blade
or the drill bit. Therefore, connect the water supply to the water line (with tap) provided on the Powerbox.
Attention: If possible, do not exceed a maximum water pressure of 3 bar.
The Beluga SXM-V drive unit is water-cooled. During operation, always supply sufficient cold cooling
water (cooling water should not exceed 30 °C). The machine must be operated during full load operation
with at least 1/2 litre of water per minute. Only use clean tap water, no contaminated or waste water, since
otherwise the heat transfer to the cooling surfaces is no longer guaranteed and the motor may suffer
irreparable damage.
The Powerbox PB RX/SX 12 is normally air-cooled and therefore does not require the water connection.
Water supply fittings (part no. 102122) are available as custom accessories. Please take the necessary
information from the Powerbox PB RX/SX 12 operating manual.
5.2.1 Dry cutting by bypass solution
If you need to dry cut with the
Beluga SXM-V, there is a
very simple option to do so with
the help of the dry cutting kit,
order no. 302137. This kit
consists of a tap, a Y-piece, and
a 10 m long water hose as is
used for supplying water. The
water needed for machine
cooling is disposed of with a long hose outdoors or
into a wash basin or simply into a separate container.
The required quantity of water to the diamond tool is
regulated by the tap. The figure may be between 0 % und
100 % of the water quantity.

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5.3 Handle adjustment
The Beluga SXM-V drive unit is a completely redeveloped unit with many integrated features such as:
individual handle adjustment front and rear.
As specified by the professional association, do not overstretch. Avoid
any abnormal posture. Make sure you have a firm stance and keep
your balance at all times”.
- These requirements can only be met effectively with the
individual handle adjustment at front and rear!
Changing the rear
handle from 0° to 180° always has the
effect of automatically reversing the direction of the tool.
The Beluga SXM-V is
ergonomically adjusted to
suit hands-free drilling.
- maximum lever length to
counter the torque when
drilling.
- short motor length,
enables perfect
machine handling
- The front handle
is located along the line
of the drill axis, enabling 100% application of force to the drill bit
1 Flush cutting right
2 Flush cutting left
3 Flush cutting on floor/surfacing
4 Hands-free drilling
5 Overhead drilling (IP67)
6 Drilling with station
Handle back: 0 °
Handle front: R
Handle back: 180 °
Handle front: L
Handle back: 90°
Handle front: R
Handle back: 90°
Handle front: R/L
Handle back: 90°
Handle front: attached
to station

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5.3.1 Cleaning / changing the handle
Since the mechanics of the rear handle are most
exposed to the drilling sludge during cutting, this can be
changed very easily. Order number 301915 Using 6
screws, you can simply detach the handle, clean it, and
re-attach it. In doing so, no switch or electrical part is
involved.
Since the handle is a safety-relevant part and is also
exposed to a high degree of dirt, clean the handle
regularly or replace it.
It is vital that you replace it, if the
start lever can no longer be
activated.
5.4 Quick release coupling
The Beluga SXM-V drive unit is fitted with a quick
release coupling that allows the different attachments to
be changed very easily and quickly.
The red clip must be open.
Grease the shaft fitting well. Guide the shaft fitting with the
splined hollow shaft into the Beluga SXM-V bore.
Attention
Lock the red clip. Please ensure
that the red clip is located behind
the attachment guard. It must not
be in the cutting area under any
circumstances, since it could be
opened by the feed motion.

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5.5 Saw blades and drill bits
You can use any saw blade with a connection bore of 1“ ( 25,4 mm) . Only use saw blades that are suitable
for the stone type. Using only concentric saw blades that are not deformed prolongs the service life of the
drive unit. Ensure that the diamond segments have an adequate undercut in relation to the saw blade.
You can use any drill bit with a connection thread of 1 ¼“ UNC or with a four-hole flange. Only use drill bits
that are suitable for the stone type. Using only concentric drill bits that are not deformed prolongs the
service life of the drive unit. Ensure that the diamond segments have an adequate undercut in relation to
the drill bits.
6.0 Safety instructions
Attention
The units must be attended when in use. Disconnect the mains plug and check
that the switch is disabled,
-when the units remain unattended
-during assembly and disassembly
-during voltage drop (rated voltage 400 V 3~ under 340 V), (rated voltage 230 V 1~ under 200 V),
-if the mains voltage fluctuates (phase imbalance) or during interruption of a phase (phase failure),
-when adjusting or fitting an accessory.
Switch the machine off when you stop operation for any reason. This prevents the unit from suddenly
starting while unattended.
Do not use the unit if,
-a part of the housing is missing or defective,
-There is damage to switches, lines, or plug connections (daily inspection!)
-when operating the units, cooling water must not penetrate the electrical components in whichever
location the units are used.
-If water is dripping from the unit, stop work and take the unit to an authorised service centre.
-After a break in operation, only switch on again if the saw blade or drill bit can rotate freely.
-Check the work area with a pipe detector in order to avoid cutting into electrical cables, water pipes
or gas pipes etc.

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7.0 Repair and maintenance
Warning
Always disconnect from the mains before starting repair or maintenance work.
After any repair, the unit must be checked by a qualified electrician (legal
requirement pursuant to VBG4 since 1.1.1990).
7.1 Daily maintenance
Check that no water is leaking out of the unit. This may impair the electrical safety of the unit and lead to
damage to the gearbox. In this case, please contact an authorised service centre.
Visual inspection for damage to the switches, the lines, or the plug sockets.
Before each work start, check the on/ off function of your switch of the front and rear handles as well as all
mechanical parts of the quick release device.
Clean the units after completion of the work.
Check that no water gets into the units during cleaning.
Drain the cooling water after using the machine. (Open the tap and blow out the water using compressed
air). This is particularly important in case of frost formation in winter.
7.2 Quarterly
Have the cables, switches, plugs checked by a qualified specialist (provision pursuant to VBG4) and record
this. Replacing the gearbox oil significantly increases the service life of the gearbox.
8.0 Speed setting depending on cutting speed
The drive units of the Beluga series allow stepless speed adjustment. You can thus set the best cutting
speed for your saw blade or drill bit. This also provides a perfect, quick cut and the service life of the tool is
also significantly extended.

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9.0 Warranty
Pursuant to our Terms & Conditions of Sale, we offer a warranty of 12 months from the date of purchase.
This covers the free repair of material and production defects which are shown to have been caused prior
to sale.
An original sales receipt must always be produced when asserting a warranty claim. It must include the full
address of the dealer, purchase date, and type code of the product. The user manual for the relevant prod-
uct as well as the safety instructions must have been followed.
Damage caused by operating errors is not covered by the warranty.
The manufacturer’s products are developed and built for specific applications. If the product is used for
purposes other than the intended purpose based on the user manual, or in the event of misuse, or if unap-
proved accessories are used, the warranty shall become null and void.
The products must be regularly maintained and cleaned according to the instructions in the user manual.
The warranty shall become null and void in the event of an intervention by third parties (opening the ma-
chine).
The warranty does not cover maintenance and cleaning work.
You must ensure that only original spare parts and accessories are used. The products must be purchased
from an authorised dealer. If non-original parts are used, this may result in consequential damage and in-
creased risk of accidents. The manufacturer is not liable for such damage. Disassembled, partially disas-
sembled units, and units repaired with third party parts are not covered by the warranty.
Certain parts are subject to normal wear and tear depending on use. These parts include e.g. carbon
brushes, ball bearings, switches, mains cables, seals, etc. These consumable parts are not covered by the
warranty. Consumable parts are highlighted in 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 lists
11.1 Drive unit SXM-V
Item
Part no. Description No.
1 201185 Drive unit SXM-V 1
2 301993 Motor complete 1
3 302260 Gear complete 1
4 301915 Handle complete 1
Wearing parts **

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11.2 Motor complete

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Item Part no. Description No.
1 301993 Motor complete 1
2 302025 Motor housing 1
3 802022 Stator 1
4 301994 Rotor complete 1
5 901305 Groove ball bearing 1 **
6 901060 Snap ring 1 **
7 402014 Ring 1
8 802931 O-ring 5 **
9 801231 O-ring 2 **
10 201116 Bearing cap 1
11 800100 O-ring 1 **
12 800391 Sealing ring 4 **
13 802197 Allen head screw 4
14 802353 Stator resolver 1
15 800092 O-ring 2 **
16 901173 Shim 1
17 401889 Cover 1
18 900339 Allen head screw 4
19 900231 Washer 1
20 900181 Spring washer 1
21 900412 Flat head screw 1
22 802453 Plug connector socket 1
23 802842 Cable exit 1
24 802841 Cable exit 1
25 102369 Board complete 1
26 802853 Female terminal housing 1
27 802850 Female terminal housing 1
28 802852 Female terminal housing 1
29 802915 Female IDC connector 1
30 301946 Bushing 1
31 802770 O-ring 1 **
32 802832 O-ring 1 **
33 902026 Allen head screw 4
34 301978 Intermediate cover 1
35 901279 Shim 1
36 901338 Shim 1
37 302036 Magnetic coupling north pole 1
38 901304 Dowel pin 2
39 401995 Washer 1
40 901298 Hex socket countersunk head screw 1
41 802854 Connection cable complete 1
42 802198 Cable gland 1
43 800359 Water connection complete 1 **
44 800415 Hose compl. 1
45 800028 Sealing ring 2
46 800023 Ball valve compl. 1
47 800020 Nipple 1
48 800040 O-ring 1
49 802402 Threaded nipple 1
50 802785 Water hose 1 **
51 901326 Threaded pin 1
52 302098 Sensor complete 1
53 802843 O-ring 4 **
54 901099 Threaded pin 1
Wearing parts **

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11.3 Gear complete