ENGLISH
5
The vibration and/or noise emission level given in this 
information sheet has been measured in accordance with a 
standardised test given in EN50636-2-91 and may be used to 
compare one tool with another. It may be used for a preliminary 
assessment ofexposure.
 
WARNING: The declared vibration and/or noise emission 
level represents the main applications of the tool. However 
if the tool is used for different applications, with different 
accessories or poorly maintained, the vibration and/or 
noise emission may differ. This may significantly increase 
the exposure level over the total workingperiod.
An estimation of the level of exposure to vibration and/or 
noise should also take into account the times when the tool 
is switched off or when it is running but not actually doing 
the job. This may significantly reduce the exposure level 
over the total workingperiod.
Identify additional safety measures to protect the operator 
from the effects of vibration and/or noise such as: maintain 
the tool and the accessories, keep the hands warm (relevant 
for vibration), organisation of workpatterns.
DCMST561
Voltage V
DC
18
UK & Ireland V
DC
18
Type 2
Battery type Li-Ion
Power output W 400
No Load Speed /min
0–4600/ 
0–6000
Cutting Swath Size mm 360
Weight (without battery pack) kg 3.8
Noise values and vibration values (triax vector sum) according to 
EN50636-2-91:2014
L
PA
   (emission sound pressure level) dB(A) 79
K   (uncertainty for the given sound level) dB(A) 2.1
L
WA
   (sound power level) dB(A) 94
K   (uncertainty for the given sound level) dB(A) 2.6
Vibration emission value a
h
 = m/s
2
3.9
Uncertainty K = m/s
2
1.5
English (original instructions)
Congratulations!
You have chosen a DeWALT tool. Years of experience, thorough 
product development and innovation make DeWALT one of the 
most reliable partners for professional power toolusers.
Technical Data
STRING TRIMMER 
DCMST561 
EC-Declaration of Conformity
Machinery Directive
String Trimmer 
DCMST561    
DeWALT declares that these products described under 
Technical Data are in compliance with:  
2006/42/EC, EN 60335-1:2012 + A11:2014 + A13:2017 + 
A1:2019 + A14:2019 + A2:2019+A15:2021, EN50636-2-91:2014.
2000/14/EC, Lawn Trimmer, L ≤ 50 cm, Annex VI
DEKRA Testing and Certification GmbH, 
Handwerkstraße 15, 70565 Stuttgart.
Location Certification Body, Dinnendahlstr. 9, 44809 Bochum, 
Germany
Notified Body number: 0158
Level of accoustic power according to 2000/14/EC
(Article 12, Annex III, L ≤ 50 cm):
L
WA
 (measured sound power)    94 dB(A)
uncertainty (K) =      2.6 dB(A)
L
WA
 (guaranteed sound power)    96 dB(A)
These products also comply with Directive 2014/30/EU and 
2011/65/EU. For more information, please contact DeWALT at 
the following address or refer to the back of themanual.
The undersigned is responsible for compilation of the technical 
file and makes this declaration on behalf ofDeWALT.
Markus Rompel 
Vice-President Engineering, PTE-Europe 
DeWALT, Richard-Klinger-Straße 11, 
65510, Idstein, Germany 
26.10.2021