Hilti DCH 300 User manual

*47984*
47984
DCH 300
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Printed: 06.02.2015 | Doc-Nr: PUB / 5127727 / 000 / 01

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Printed: 06.02.2015 | Doc-Nr: PUB / 5127727 / 000 / 01

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ORIGINAL OPERATING INSTRUCTIONS
DCH 300 diamond cutter
It is essential that the operating instructions
are read before the machine is operated for
the first time.
Always keep these operating instructions to-
gether with the machine.
Ensure that the operating instructions are
with the machine when it is given to other
persons.
Contents Page
1 General information 17
2Description 18
3 Accessories, consumables 20
4 Technical data 21
5 Safety instructions 22
6Beforeuse 25
7 Operation 27
8 Care and maintenance 29
9 Troubleshooting 30
10 Disposal 30
11 Manufacturer’s warranty 31
12 EC declaration of conformity (original) 31
1These numbers refer to the illustrations. You can
find the illustrations at the beginning of the operating
instructions.
In these operating instructions, the designation “the
power tool” always refers to the DCH 300 diamond cutter.
Operating controls and indicators 1
@Spindle lockbutton
;Front grip
=On / off switch
%Switch-on interlock release button
&Diamond cutting disc
(Spindle
)Guard (hood)
+Guide wheels
§Clamping nut wrench, 24 mm AF / 10 mm AF
/Hex. socket wrench, 6 mm AF
:Guard (hood) clamping screw
·Dust removal connector cap
$Service indicator
£Theft protection indicator (option)
DCH 300 mounting system for diamond cutting
discs 2
|Reversible flange 60 mm dia.
¡Clamping flange, 60 mm dia.
QClamping nut, M16 x 1.5
DCH 300 mounting system for synthetic resin-bonded
fiber-reinforced abrasive cutting discs (optional) 3
WReversible flange 80 mm dia.
E300 mm dia. synthetic resin-bonded fiber-reinforced
cutting disc
RClamping flange, 80 mm dia.
TClamping nut, M16 x 1.5
Hood extension with depth gauge (optional) 4
ZHood extension
UHook
IStop
OCutting depth sliding indicator
PCutting depth scale
1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
seriousbodilyinjuryorfatality.
WARNING
Draws attention to a potentially dangerous situation that
could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation that
could lead to slight personal injury or damage to the
equipment or other property.
NOTE
Draws attention to an instruction or other useful informa-
tion.
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1.2 Explanation of the pictograms and other
information
Warning signs
General
warning Warning: electricity
Obligation signs
Wear a hard
hat. Wear protective
glasses
Wear ear
protection. Wear protective
gloves.
Wear safety
shoes. Wear breathing
protection.
Read the
operating
instructions
before use.
Symbols
Return
materials for
recycling
Amps Volts Alternating
current
Revolutions
per minute Revolutions per minute Diameter Rated speed
Double
insulated
Location of identification data on the machine
The type designation and serial number can be found on
thetypeidentificationplateonthemachine.Makeanote
of this data inyour operating instructions and always refer
to it when making an enquiry to your Hilti representative
or service department.
Type:
Serial no.:
2 Description
2.1 Use of the product as directed
The DCH 300 is an electrically powered diamond cutter for professional use in the construction industry.
It is designed for cutting mineral materials with diamond discs without use of water.
When cutting mineral materials, a dust removal system equipped with the corresponding filter must be used, e.g. the
Hilti VCU 40, VCU 40‑M or VCD 50 vacuum cleaner.
In order to avoid electrostatic effects, a vacuum cleaner equipped with an antistatic hose should be used.
Use only diamond cutting discs approved for use at a peripheral speed of at least 80 m/sec.
The power tool is to be used exclusively in pushing mode (counter rotation).
The use of liquids, e.g. to cool the disc or suppress dust, is not permissible.
Do not use the power tool for cutting with cutting tools of a type not specified in these operating instructions (e.g.
circular saw blades) or for grinding.
When equipped with synthetic resin-bonded fiber-reinforced abrasive cutting discs, the power tool can also be
used for cutting metals. For this application, use only synthetic resin-bonded fiber-reinforced abrasive cutting discs
approved for use at a peripheral speed of at least 80 m/sec.
The working environment may be as follows: construction site, workshop, renovation, conversion or new construction.
To avoid the risk of injury, use only genuine Hilti accessories and cutting tools.
Observe the safety rules and operating instructions for the accessories used.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
The machine is designed for professional use and may be operated, serviced and maintained only by trained,
authorized personnel. This personnel must be informed of any special hazards that may be encountered. The machine
and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used not as
directed.
Themachinemaybeusedonlyinadryenvironment.
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The machine may be operated only when connected to a power supply providing a voltage and frequency in
compliance with the information given on its type identification plate.
Do not use the machine where there is a risk of fire or explosion.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
Observe the national health and safety requirements.
Modification of the machine or tampering with its parts is not permissible.
2.2 Switches
On/off switch with switch-on interlock
2.3 Starting current limitation
The starting current drawn by the power tool is several times higher than its rated current. The electronic starting
current limiter reduces the starting current drawn by the power tool and thus prevents the mains fuse blowing. It also
allows the power tool to start smoothly, without a jolt.
2.4 Restart interlock
The power tool does not restart by itself after an interruption in the electric supply. The switch must first be released
and then pressed again after approx. 1 second.
2.5 TPS theft protection system (optional)
The power tool may be optionally equipped with the TPS theft protection system. If equipped with this feature, the
power tool can be unlocked and made ready for operation only through use of the corresponding TPS key.
2.6 LED indicators
Service indicator LED (see section “Care and maintenance”)
Theft protection system indicator (optional) (see section “Operation”)
2.7 Guard (hood) with guide wheels
Cutting and slitting work on stone may be carried out only when the power tool is equipped with a dust hood with
wheels.
2.8 Electronic overload protection
This power tool is equipped with electronic overload protection.
The electronic overload protection system monitors the current input and thus prevents overloading of the tool during
use.
The power tool switches itself off automatically when excessive pressure is applied resulting in excessively high
electric current input.
After releasing the on / off switch, the power tool can be restarted.
The user can prevent activation of this automatic cut out by reducing the pressure applied to the tool.
The user should aim to work continuously with the tool without activation of the automatic cut-out.
2.9 Using extension cords
Use only extension cords of a type approved for the application and with conductors of adequate gauge. The power
tool may otherwise lose performance and the extension cord may overheat. Check the extension cord for damage at
regular intervals. Replace damaged extension cords.
Recommended minimum conductor gauge (cross section) and max. cable lengths
Conductor cross section 1.5 mm² 2.0 mm² 2.5 mm² 3.5 mm²
Mains voltage 100V -30 m -50 m
Mains voltage 110-120 V --40 m -
Mains voltage 220-240 V 30 m -50 m -
Do not use extension cords with a conductor cross section of less than 1.5 mm².
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2.10 Using extension cords outdoors
When working outdoors, use only extension cords that are approved and correspondingly marked for this application.
2.11 Using a generator or transformer
This tool may be powered by a generator or transformer when the following conditions are fulfilled: The unit must
provideapoweroutputinwattsofatleasttwicethevalueprintedonthetype identification plate on the power tool.
The operating voltage must remain within +5% and -15% of the rated voltage at all times, frequency must be in the 50
– 60 Hz range and never above 65 Hz, and the unit must be equipped with automatic voltage regulation and starting
boost.
Never operate other power tools or appliances from the generator or transformer at the same time. Where applicable,
use a generator or transformer designed for simultaneous power tool and vacuum cleaner operation. Switching other
power tools or appliances on and off may cause undervoltage and / or overvoltage peaks, resulting in damage to the
power tool.
2.12 Depth gauge (optional)
The power tool can be fitted with an optional depth gauge. This improves dust removal performance for cutting mineral
materials. The maximum cutting depth can be set with the aid of the cutting depth scale on the hood extension.
2.13 The items supplied as standard include:
1 Power tool with DCH‑EX 300 hood
1 Reversible flange 60 mm dia.
1 Clamping flange, 60 mm dia.
1 Clamping nut, M16 x 1.5
1 Clamping nut wrench, 24 mm AF / 10 mm AF
1Hex.socketwrench,6mmAF
1 Cardboard box
1 Operating instructions
2.14 Cutting disc specifications
Diamond cutting discs in compliance with the requirements of EN 13236 are to be used with the power tool.
Synthetic resin-bonded fiber-reinforced cutting discs in compliance with EN 12413 (straight, not offset, type 41) may
also be used with this power tool for working on metals. In this case, the appropriate DCH 300 ABR disc mount (see
accessories) must be used with the power tool.
The mounting instructions issued by the disc manufacturer must also be observed.
3 Accessories, consumables
Designation Item number, description
DCH 300 ABR disc mount 212259, Reversible flange ∅80 mm, clamping flange
∅80 mm, clamping nut M16 x 1.5
Depth gauge for the DCH 300 212131
Vacuum cleaner from the Hilti range
Antistatic hose, complete 203867, Length 5 m, ∅36
Hilti toolbox 47986
DCH 300
Disc type Specification Material
Diamond cutting disc DCH‑D 305 C1 Concrete
Diamond cutting disc DCH‑D 305 C2 Hard concrete
Diamond cutting disc DCH‑D 305 M1 Masonry, sand-lime block
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Disc type Specification Material
Diamond cutting disc DCH‑D 305 C10 Concrete (Economy Line disc)
Diamond cutting disc DCH‑D 305 M10 Masonry (Economy Line disc)
4 Technical data
Right of technical changes reserved.
Rated voltage 110 V 220 V 230 V 230 V / CH 240 V
Rated power
input 2,300 W 2,600 W 2,600 W 2,250 W 2,600 W
Rated current
input 22.5 A 12.5 A 12.1 A 10 A 11.7 A
Mains frequency 50 Hz 50…60 Hz 50…60 Hz 50 Hz 50 Hz
Other information about the power tool DCH 300
Dimensions (L x W x H) 705 mm x 240 mm x 235 mm
Drive spindle thread M 16 X 1.5
Disc arbor size 22.2 mm
25.4 mm
Cutting disc ∅ Max. 305 mm
Cutting disc thickness Max. 3.5 mm
Weight in accordance with EPTA procedure 01/2003 9.4 kg
Protection class Protection class I (grounded) or protection class II
(double insulated). See type identification plate.
Rated speed under no load Max. 4,900/min
Clamping nut tightening torque M16 x 1.5: 40…50 Nm
NOTE
The sound pressure and vibration values given in these instructions have been measured in accordance with a
standardized test and may be used to compare one electric tool with another. They may be used for a preliminary
assessment of exposure. The data given represents the main applications of the electric tool. However, if the electric
tool is used for different applications, with different accessories or is poorly maintained, the data may vary. This may
significantly increase exposure over the total working period. An accurate estimation of exposure should also take into
account the times when the tool is switched off, or when it is running but not actually being used for a job. This may
significantly reduce exposure over the total working period. Identify additional safety measures to protect the operator
from the effects of noise and/or vibration, for example: maintaining the tool and the accessories, keeping the hands
warm, organization of work patterns.
Noise information (as perEN 60745‑1):
Typical A-weighted sound power level 117 dB (A)
Typical A-weighted emission sound pressure level 106 dB (A)
Uncertainty for the given sound level 3 dB (A)
Vibration information in accordance with EN 60745
Triaxial vibration values (vibration vector sum) Measured in accordance with EN 60745‑2‑22
Cutting, ah,AG 5.1 m/s²
Uncertainty (K) 1.5 m/s²
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Printed: 06.02.2015 | Doc-Nr: PUB / 5127727 / 000 / 01