Original operating instruction and spare parts list
Diamand wet core drill machine
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All rights reserved according to DIN ISO 16016.
No part of this document (instruction manual and spare parts list) may be reproduced, adapted, transmitted,
transcribed, stored on a data medium or be translated into another language without prior written approval of
GÖLZ® GmbH
Dommersbach 51
D-53940 Hellenthal
Guarantee
We reserve the right to amend any information included in this document (manual instruction and spare parts list)
at any time and without prior notice.
GÖLZ® assumes no warranty for these documents.
GÖLZ® shall not be liable for errors in this document (manual instruction and spare parts list) or for any collateral
or consequential damage in connection with shipment, performance or use of the material.
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EG-KONFORMITÄTSERKLÄRUNG EC-DECLARATION OF CONFORMITY
erklärt in alleiniger Verantwortung dass
folgende Maschine:
Declare hereby certifies on its sole
responsibility that the following product:
FB 20 P
Diamant-Nass-Kernbohrmaschine
Diamond wet core drill machine
Carotteuse diamant sous arrosage
Seriennummer / Serial number / Numéro de série : ___________________________
auf das sich diese Erklärung bezieht, mit
folgenden Richtlinien übereinstimmt:
2006/42/EG
Sicherheits- und
Gesundheitsanforderung
2004/108/EG
Elektro-Magnetische Verträglichkeit
2006/95/EG
Niederspannungsrichtlinie
2011/65/EU
RoHS
mit folgenden Normen übereinstimmt:
EN 50144-1
EN 50144-2-1
EN 55014-1
EN 6100-3-2
EN 61000-3-3
EN 55014-2
EN 61029-1
Die oben genannte Firma hält
Dokumentation als Nachweis der
Erfüllung der Sicherheitsziele und die
wesentlichen Schutzanforderungen zur
Einsicht bereit.
which is explicitly referred to by this
declaration meet the following directives:
2006/42/EG
Safety and health requirement
2004/108/EG
Electromagnetic compatibility
2006/95/EC
Low voltage directive
2011/65/EU
RoHS
meet the following standards:
EN 50144-1
EN 50144-2-1
EN 55014-1
EN 6100-3-2
EN 61000-3-3
EN 55014-2
EN 61029-1
Documented evidence conforming to the
requirements of the directives is kept
available for inspection at the above
manufacturer’s address.
DECLARATION DE CONFORMITE DE
LA CE
déclare sous sa seule responsabilité
que le produit suivant:
Qui fait l’objet de la présente
déclaration correspond aux directives
suivantes:
2006/42/EG
Prescriptions sanitaire et sécurité
2004/108/EG
Compatibilité électromagnétique
2006/95/CE
Directive basse pression
2011/65/EU
RoHS
aux normes suivantes:
EN 50144-1
EN 50144-2-1
EN 55014-1
EN 6100-3-2
EN 61000-3-3
EN 55014-2
EN 61029-1
Pour faire foi de la conformité et du
respect des règles de sécurité, la documentation peut être consultée au siège
de la Société susmentionnée.
…………………………………………………………………………………
Hellenthal, den 03.07.2015
Geschäftsführer / General Manager /
Président-directeur général
B. Schmitz
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Contents
1. Symbol- and Pictograph description .......................................................................... 5
1.1 Function description ................................................................................................ 5
2. General instructions .................................................................................................... 5
11.1.2 Ordering information ................................................................................................ 14
11.1.3 Distribution agencies ............................................................................................... 15
11.2 Wearing parts ........................................................................................................ 16
12. Exploded view and spare parts list .......................................................................... 17
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Special designs and versions may differ from the standard models in terms of their technical details. If any points
are unclear, we urgently recommend that you contact GÖLZ® GmbH, indicating the machine type and machine
number.
1. Symbol- and Pictograph description
1.1 Function description
2. General instructions
2.1 Application
The machine may be used in accordance with the data shown on the model plate. The details in the quotation
and order confirmation also apply for the use of special machines.
The machines generally comply with safety class II, this alone ensures the complete protection of the RCCB or
PRCD.
When using suitable core bits it is possible to drill holes in the most diverse materials:
• Concrete (even with thick reinforcement steel)
• Sandstone and limestone
• All building materials for solid walls
• Asphalt floors
It is compulsory to observe the safety instructions included in this manual!
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.
Gear control
Drill-spindle
Handle
Switch on/off
Handle
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persons who have suitable training and qualifications.
For stand-mounted drilling the machine may have the following
• a personnel safety switch (RCCB or PRCD) on the machine itself or
• a coded (1 h) plug, which is connected to the 115 V mains via a safety box (IP44) with an RCCB.
The FB 20 P has in both types, voltage 110 V and 230 V, an integrated PRCD-safety switch in the cable.
The core drilling machines comply with the regulations of the “Stone and Earth” professional association dated
July 1989. They are machines of category II, which means that they must be mounted on stands and stable
(pursuant to DIN 57100 and VDE 0100), and the stand must be fitted with the following
• reversing lock
• water extraction device.
2.2 Safety
The following points are to be given special attention:
• the technical data and details of the permitted use of the machine (commissioning, ambient and
• the relevant accident prevention regulations
• the correct use of tools
• the use of personal safety equipment
3. Transport and storage
3.1 Transport
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.
The machine is a pure wet drill machine.
Dry drilling can cause damage to the shaft sealing rings.
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
operating conditions) which are set out in the catalogue, the operating manual, the model plate data and
other product information,
The machine is to be checked for signs for transport damage on receipt. Any damage must
be documented in writing.
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4. Main dimensions and technical data
4.1 Dimensions
(Representation without additional handle)
4.2 Technical data
Rated voltage 230 V
Current consumption 10 A
Power requirement 2200 W
Frequency 50 - 60 Hz
Idling speed 950 / 2150 / 4450 min-1
Full speed 500 / 1200 / 2500 min-1
Output rating 1300 W
Torque 25 / 10,5 / 5 Nm
Drilling diameter 150 / 50 / 15 mm
Weight 7,4 kg
Core bit connection UNC 1 ¼ / R ½ “
Overload coupling torque 12 Nm
Noise pressure level (EN 50144) 89 dB (A)
Sound power level (EN 50144) 102 dB (A)
Vibration (EN 50144) < 2,5 m/s²
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5. Commissioning
Check that the mains voltage is identical to the voltage specified on the model plate.
Stand-mounted:
Secure the 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 machine axis is parallel to the drill stand axis.
Insert the core bit and set the speed. Setting instructions are given in chapter 8.
Connect the water supply. Important: Do not exceed the max. water pressure of 3 bar.
Both voltage versions of FB 20 P (110V and 230V) are equipped with a PRCD-safety switch in the cable, so the
FB 20 P can be directly connected to the main supply.
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 crosssection 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:
Recommended cable cross-sections:
Rated current = 9 A
Cable length m 7,5 15 25 30 45 60
Cable cross-section mm2 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.
5.1 Changing gear
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 (pliers,
hammer, etc.) to change gear since otherwise gear damage will be inevitable.
Never change gear using force and only do so when the machine is slowing down or at a
standstill.
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 cannot
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 extreme care and
by trained personnel.
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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 machine 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.
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 machine.
The core bit can be removed more easily if you apply a little waterproof grease to the drill spindle thread.
6. Safety instructions
• if you intend to leave the machine 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 machine if
• part of the casing is missing or defective,
• If water drips out of the overflow hole, stop work and have the machine inspected by an authorized
• Only drill above your head with suitable safety equipment (water collector), RCD and transformer
• 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 gas air mixes.
To use wrong tools or accessories is danger for your life.
Only use the machine under supervision. Disconnect the mains plug and check that the
switch has been turned off,.
service contractor.
protection class II.
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7. Servicing and care
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 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 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 machine whilst you are cleaning it.
To ensure that the sealing function is maintained, oil the drill spindle:
• Disconnect the machine from the water supply. Open the water connection shut-off cock and insert a
7.2 After approx. 150 hours of use
After the first 150 hours of use, the gearbox oil must be changed.
7.3 After approx. 250 hours of 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 secure it with the
screws. Fit the cap on the motor casing by tapping it gently with a rubber mallet 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.
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 electrician
(statutory regulation pursuant to VBG4 since 1.1.1990).
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.
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3 4 5 6 7 [m/s]
Bit
capacity
Ø concrete
concrete
rock
[mm]
reinforced
8. 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 cannot
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 machine (values printed in italics), should only be completed with extreme care and
by trained personnel.
In keeping with our terms of sale, we offer a warranty for six 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 instructions 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 warranty
claim is accepted in case of non-compliance with the due employment according to the operating instructions, in
case of the employment for other purposes than originally intended or the employment of inadequate
accessories.
The periodical maintenance and cleaning of the products according to the directions of the operating instructions
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. General safety instructions
Read and follow these instructions before you use the tool. Keep these safety instructions in a safe place.
Keep your workplace tidy. Untidiness in the workplace can cause accidents.
Protect yourself from electric shocks. Refer to the applicable regulations. Avoid physical contact with earthed
parts, such as pipes, heaters, furnaces and refrigerators.
Keep children away. Do not allow other people to touch the tool or cable, keep them away from where you are
working.
Keep your tools in a safe place. Unused tools should be kept in a dry, locked room out of the reach of children.
Do not overload your tool. It will work better and more safely in the specified capacity range.
Use the correct tool. Do not use tools that are too weak or mounted tools for heavy work. Do not use tools for
purposes and work for which they have not been designed.
Wear suitable clothing. Do not wear excessively baggy clothing or jewellery, which may be caught by moving
parts. For working outdoors, we recommend the use of rubber gloves and sturdy shoes. Wear a hairnet if you
have long hair.
Use goggles. Use a breathing mask for work that generates dust.
Do not use the cable for any purpose other that that for which it is designed. Do not carry the tool by the cable
and do not use it to pull the plug out of the socket. Protect the cable from heat, oil and sharp edges.
Check the connection lead and plug every time before you use the tool for signs of damage. If they are damaged,
have them replaced by a specialist. Always keep the connection lead away from the working area of the machine.
Secure the workpiece. Use clamps or a vice to hold the workpiece. This will make it more secure that if you hold
it in your hand and will allow you to use both hands to control the machine.
Do not overstretch yourself. Avoid abnormal body positions. Ensure that you have a stable area on which to
stand and keep your balance at all times.
Look after your materials with care. Keep your tools sharp and clean so that they produce good safe results.
Check the plug and cable at regular intervals and have them replaced by a specialist if they suffer any damage.
Check the extension cable at regular intervals and replace damaged cables.
Keep the handles free of oil and grease.
Disconnect the mains plug from the supply when the tool is not in use and when changing the tool.
Do not leave a tool spanner on the tool. Before switching on the tool check that the wrench and setting tools have
been removed.
Avoid the machine starting when you do not intend it to. Do not carry a tool that is connected to the mains supply
with your finger on the switch. Ensure that the switch is turned off when you connect the tool to the mains supply.
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Electric tools outdoors and in wet areas: Mobile tools which are used outdoors should be connected to the mains
supply using a residual-current circuit breaker or the like for added safety. This is particularly important when
working with freehand tools. If there is a water supply, you should use an isolation transformer and a voltage
supply of 115 V; please specify in your order.
For outdoors work, only use extension cables, which are approved for this purpose and marked accordingly.
Be vigilant at all times. Watch your work. Proceed sensibly. Do not use the tool if you are not concentrating fully
on what you are doing.
Important:
Safety equipment (such as overcurrent protection devices, undervoltage trips, safety couplings etc.) are tools but
do not offer guaranteed safety. As a responsible manufacturer we tailor these tools to each other so that they
offer the best possible protection. But without the care and caution of the use, these tools may even cause
damage it they are not used properly. Have the slip couplings, in particular, checked during the quarterly
inspection to ensure that it is correctly adjusted and functions properly. This inspection should be conducted by
the manufacturer or an authorised service outlet and documented.
Check the machine every day for signs of damage, conduct a visual inspection:
Before reusing the tool, carefully check the safety equipment or slightly damaged parts to ensure that they offer
perfect and proper function. Check that all moving parts function correctly, that they do not jam and that none of
the parts are damaged. All parts must be correctly fitted and satisfy all the conditions to ensure the perfect
operation of the tool. Damaged safety equipment and parts must be repaired or replaced properly by a specialist
service contractor. Do not use any tools, which cannot be switched on and off using the switch. Pay particular
attention to ensuring electrical safety: Cables? Plugs? Switches? Do all the components satisfy safety
regulations?
Repairs may only be completed by trained personnel. Before being used for the first time and after all repair
work, the safety of electric tools must be checked by an electrician pursuant to VBG 4, § 5. This inspection must
also be conducted and documented at regular intervals – at least once per year.
Please note that as the operator you are responsible for complying with any additional regulations. For example if
electric tools are used in a wet and/or damp environment, the regulations of the ”Stone and Earth” Professional
Association must be satisfied.
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11. Spare parts list
11.1 Using the spare parts list
The spare parts list is not a mounting or dismounting instruction. The only purpose of the spare parts list is to
easily and quickly find spare parts which can be ordered with distribution agencies, see chapter 11.1.3
"Distribution agencies".
11.1.1 Safety regulation
Using this spare parts list for mounting or dismounting purposes is not permitted. For assembly and disassembly
work exclusively the corresponding descriptions in this operating manual are to be followed.
Danger: Mounting or dismounting assembly groups can give rise to risks which are not
mentioned in the spare parts list!
Danger: Non-observance of this instruction can result in injury which, in the worst case,
can result in death!
11.1.2 Ordering information
Note: In order to avoid wrong deliveries the information the ordering information should be
checked for accuracy and completeness before sending it! Completely indicate the delivery
address!
Wearing parts for construction devices mentioned in the operating manual such as drilling and sawing
machines.
Wearing parts are the parts subject to operation-related (natural) wear during proper use of the device. The
wearing time cannot be uniformly defined, and differs according to the intensity of use. The wearing parts must
be adjusted, maintained and, if necessary, replaced for the specific device in accordance with the manufacturer’s
operating manual. Operation-related wear is not a reason for defect claims.
Wearing parts of this machine are grey marked in the spare parts list.
•Feed and drive elements such as toothed racks, gearwheels, pinions, spindles, spindle nuts, spindle
bearings, cables, chains, sprockets, belts
•Seals, cables, hoses, packings, connectors, couplings and switches for pneumatic, hydraulic, water,
electrical and fuel systems
•Guide elements such as guide strips, guide bushes, guide rails, rollers, bearings, sliding
protection supports
• Clamping elements for quick-separating systems
• Flushing head seals
• Slide and roller bearings that do not run in an oil bath
• Shaft oil seals and sealing elements
• Friction and safety clutches, braking devices
• Carbon brushes, commutators / armatures
• Easy-release rings
• Control potentiometers and manual switching elements
• Securing elements such as plugs, anchors, screws and bolts
• Fuses and lamps
• Auxiliary and operating materials
• Bowden cables
• Discs
• Diaphragms
• Spark plugs, glow plugs
• Parts of the reversing starter such as the starting rope, starting pawl, starting roller and