Crown CT18173 Original Instructions Manual page 12

Some of the above types of operations require special
accessories that are not included in the delivery scope
and not described in this manual�
Power tool components
1 Chuck SDS MAX
2 Dust protection casing
3 Fixing bush
4 Вush for fixing the position of the chisel
5 Additional handle *
6 Ventilation slots
7 Cap
8 On / off switch
9 Lock-on button
10 Tube with lubricant *
11 Flange wrench *
12 Chuck HEX-17
* Optional extra
Not all of the accessories illustrated or described
are included as standard delivery.
Installation and regulation of power tool
elements
Before carrying out any works on the power tool it
must be disconnected from the mains.
Do not draw up the fastening elements
too tight to avoid damaging the thread.
Mounting / dismounting / setting-up of
some elements is the same for all power
tool models, in this case specific models
are not indicated in the illustration.
Additional handle (see fig. 1)
Always use the additional handle 5 when operating�
Additional handle 5 may be positioned as deemed
comfortable by the user�
• Loose additional handle 5 as shown in fig. 1.1.
• Place additional handle 5 in desired position (see
fig. 1.2).
• Tighten additional handle 5 as shown in fig. 1.3.
Mounting / replacement of chisel (see fig. 2-3)
• Before installing the chisel, clean it and lubricate the
shank with a thin layer of grease from tube 10�
• Move the fixing bush 3 back and hold it in this
position (see fig. 2.1, 3.1).
• Mount / replace the chisel (see fig. 2.2, 3.2)�
• Release the fixing bush 3 (see fig. 2.3, 3.3).
• Test the chisel fixing by trying to remove it from
chuck 1 (SDS MAX) or 12 (HEX-17)�
Gloves are to be used when removing the
accessory from chuck 1 (SDS MAX) or 12
(HEX-17), as the chisel may be danger-
ously hot after long using.
Mounting / replacement of dust protection casing
(see fig. 4-5)
[CT18173M]
Dust protection casing 2 prevents the dust
from entering the SDS MAX chuck. Never
use your power tool with a damaged dust
protection casing 2 - if damaged, it must
be immediately replaced. You can either do it on
your own, or contact the CROWN service center.
• Move fixing bush 3 back and hold it in that position
(see fig. 4.1).
• Pull dust protection casing 2, and remove it (see
fig. 4.2).
• Install a new dust protection casing 2 (see fig. 5.1).
• Release fixing bush 3 (see fig. 5.2).
Initial operating of the power tool
• Always use the correct supply voltage: the power
supply voltage must match the information quoted on
the power tool identification plate.
• The power tool is supplied properly lubricated and
ready for use�
• A new power tool needs some time for its parts to
run in before a full load operation� The run-in period
duration is about 5 hours of operation�
• The gear lubrications require a short time to get
warm� Depending on the ambient temperature this
period of time can alter within the range of approxi-
mately 15 s (at ambient temperature of 32°С) up to 2
minutes (at ambient temperature of 0°С).
Switching the power tool on / off
Short-term switching on / off
To switch on, press and hold on / off switch 8, to switch
off - release it�
Long-term switching on / off
Switching on:
Push on / off switch 8 and lock it in the position with
lock-on button 9�
Switching off:
Push and release on / off switch 8�
Design features of the power tool
Chisel rotation (see fig. 6)
Chisel rotation allows to set the chisel in a comfortable
position for chiselling works�
• Move forward the bush 4 (see fig. 6.1).
• Rotate the bush 4 to set chisel in a comfortable
position for chiselling works (see fig. 6.2).
• Move backward the bush 4 (see fig. 6.3).
Recommendations on the power tool
operation
Wear thick soft gloves when working to
reduce vibration impact on your body.
English
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