Norton Clipper CDR 252 User manual
CDR 252
OPERATING INSTRUCTIONS
Translation of the original instructions
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The undersigned manufacturer:
SAINT - GOBAIN ABRASIVES S.A.
190, BD. J. F. KENNEDY
L-4930 BASCHARAGE
Declares that this product:
« Drill Rigs »: KIT CDR 252 + CDM 203 Code : 70184693970
is in conformity with the following Directives :
"MACHINES" 2006/42/CE
"LOW VOLTAGE" 2006/95/CE
"ELECTROMAGNETIC COMPATIBILITY " 2004/108/CE
"NOISE" 2000/14/CE
And the European standard:
EN 12348 –Core drilling machines on stand –Safety
Valid for machines as of serial number:
70100000
Storage site for the technical documents:
Saint-Gobain Abrasives 190, Bd. J. F. Kennedy 4930 BASCHARAGE, LUXEMBOURG
This declaration of conformity loses its validity when the product is converted or modified without
agreement.
Bascharage, Luxembourg, 01/02/2012.
Olivier Plenert, executive officer.
Declaration of conformity
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CDR 252
OPERATING INSTRUCTIONS
1BASIC SAFETY INSTRUCTIONS 6
1.1 Symbols 6
1.2 Machine plate 7
1.3 Safety instructions for particular operating phases 7
2MACHINE DESCRIPTION 8
2.1 Short description 8
2.2 Purpose of use 8
2.3 Layout 8
2.4 Technical Data 9
2.5 Statement regarding the vibration emission 10
2.6 Statement regarding noise emission 11
3ASSEMBLY AND COMMISSIONING 12
3.1 Assembling the motor on the rig 12
3.2 Tool assembly 12
3.3 Electrical connections 12
3.4 Changing motor speed 13
3.5 Water cooling 13
4TRANSPORT AND STORING 14
4.1 Securing for transport 14
4.2 Transport procedure 14
4.3 Long period of inactivity 14
5OPERATING THE MACHINE 15
5.1 Site of work 15
5.2 Cutting method 15
6MAINTENANCE AND SERVICING 19
7FAULTS: CAUSES AND CURES 20
7.1 Fault-finding procedures 20
7.2 Trouble-shooting guide 20
7.3 Customer service 21
8APPENDIX 23
8.1 Ideal rotation speed of the core bit in relation to the hole diameter 23
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1 BASIC SAFETY INSTRUCTIONS
The core drill rig CDR 252 is exclusively designed for the drilling of construction products
mainly within a Construction Site.
Uses other than the manufacturer's instructions shall be considered as contravening the
regulations. The manufacturer shall not be held responsible for any resulting damage. Any
risk shall be borne entirely by the user. Observing the operating instructions and compliance
with inspection and servicing requirements shall also be considered as included under use in
accordance with the regulations.
1.1 Symbols
Important warnings and pieces of advice are indicated on the machine using symbols. The
following symbols are used on the machine:
Read operator’s instructions
Ear protection must be worn
Hand protection must be worn
Eye protection shall be worn
Airway protection must be worn
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1.2 Machine plate
Important data can be found on the following plate located on the machine:
1.3 Safety instructions for particular operating phases
Before commencing work
Before commencing work, make yourself familiar with the working environment at the
place of use. The working environment includes: obstacles in the area of work and
manoeuvre, the firmness of the floor, necessary protection at the site relating to public
thoroughfares and the availability of help in the event of accidents.
Immediately remove damaged or badly worn core bits, as they endanger the operator
whilst rotating.
Only fit NORTON diamond core bits to the machine! The use of other tools can damage
the machine!
Read the core bits’ specifications carefully to choose the adequate tool to your
application.
Make sure the handle of the machine is free from oil or grease.
Attention is drawn to the use of BS2092 safety goggles in conformity with specified
Processes No.8 of the Protection of Eyes Regulation 1974, Regulation 2(2) Part 1.
Make sure that no mounting tool is left on the machine before starting it.
Electrical powered machine
Make sure that the electrical supply of the machine is equipped with a grounded
protective connector. If you have doubts, let a qualified electrician check the electrical
system.
Never pull the machine by the cable to transport it or to separate it from the electrical
supply.
Avoid any contact between the cable and extension cable and heat sources, oil, and
sharp edges.
Always check the cable before commencing work. If it is damaged, let a qualified
electrician replace it.
Switch the machine off, and isolate it from the main electrical supply before attempting
any maintenance or repair on the machine
In the event of the machine breaking down or stopping for no apparent reason, switch off
the main electricity supply. Only a qualified electrician is allowed to investigate the
trouble and remedy the fault.
Always isolate the machine from the electrical supply when not in use.
Machine Model
Machine Code
Weight
Year of production
Machine type
Serial number
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2 MACHINE DESCRIPTION
Any modification, which could lead to a change in the original characteristics of the machine,
may be done only by Saint-Gobain Abrasives who shall confirm that the machine is still in
conformity with the safety regulations.
2.1 Short description
The CDR 252 core drill rig is designed for durability and high performance for onsite wet and
dry drilling operations of a wide range of masonry and natural stone products.
As with all other NORTON products, the operator will immediately appreciate the attention
given to detail and quality of materials used in construction. The machine and its component
parts are assembled to high standards assuring long life and minimum maintenance.
2.2 Purpose of use
The machine is designed for drilling a large range of building materials. It is not designed for
drilling wood or metals, except steel reinforcing securely embedded in concrete.
2.3 Layout
There are two main parts on the core drilling rig CDR 252: the motor and the rig itself.
The rig is made of sectional aluminium, which reduces the weight of the machine allowing
easy transportation. The base ensures stability of the rig, and allows two ways of fixing the
rig: using a vacuum pump or fixing anchors. The rig is equipped with a quick fixing plate, so
the motor can be fitted or removed quickly from the rig.
Three different types of electric motor are available on the CDR 252, offering excellent
quality of drilling and extended life duration. Every motor is equipped with a P.R.C.D.
(Portable Residual Current Device). This circuit breaker protects the motor from an electrical
overload. The P.R.C.D. is a circuit breaker and not a switch. Always stop the motor using its
switch and not the P.R.C.D.
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2.4 Technical Data
Max. drill bit diameter
252mm
Movement
625mm
Tilting
45°
Weight
11kg (00310387341 CDR 252D Dowel base)
Dimensions
(Length x width x height)
235x325x975mm
You can find the code number on the machine plate. If you bought a complete kit, your
machine is composed of a column with combined base, a motor and a motor mounting plate.
These are the characteristics of the motor:
70184647808
Motor
CDM 203
Power
2 kW
Motor protection
P.R.C.D. 10mA
Rotation speed
450/1050/2000 min-1
Weight
8,2 kg
Range of core bit diameter
15-200mm
Connector
½’’ + 1¼’’
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2.5 Statement regarding the vibration emission
Declared value of vibration emission following EN 12096.
Machine
Model / code
Measured value of vibration
emission at m/s2
Uncertainty K
m/s2
Tool used
Model / code
KIT CDR 252 +
CDM 203
70184693970
<2.5
0.5
Pro CB BETON
The vibration value is lower and does not exceed 2.5 m/s².
Values determined using the procedure described in the standard EN 12348.
The measurements are made with new machines. Actual values may vary with site
conditions, in terms of:
Materials worked
Wear Machine
Lack of maintenance
Inappropriate tool for application
Tool in poor condition
Unskilled operator
Etc…
The exposure time to vibration is based on the performance of work (related to the
adequacy Machine / Tool / worked material / operator)
When evaluating risks due to hand-arm vibration, you need to take into account effective
usage at rated power of machine during a full day of work; quite often you will realise that
effective utilisation time represents around 50% of overall duration of work. You have to
consider, of course, breaks, water feeding, preparation of work, time to move the
machine, disk mounting…
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