Crown CT21072HBX-2 BMC [25/172] Installation and regulation of power tool elements
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Crown CT21072HBX-2 BMC [25/172] Installation and regulation of power tool elements

Crown CT21072HX-2 BMC [25/172] Installation and regulation of power tool elements
25
English
Symbol Meaning
Do not dispose of the power
tool in a domestic waste
container�
Power tool designation
[CT21072HX-2, CT21072HQX-2]
The power tool has been designed for hole drilling in
wood, plastic and metal, as well as for screwing in and
loosening of threaded fastening elements (screws,
bolts, etc�)� CT21072HQX-2 - model deliver with quick-
change attachments (keyless chuck, tool holder and
angle tool holder) that allow to perform works in hard-
to-reach places�
[CT21072HBX-2]
The power tool has been designed to unscrew and
to tighten threaded fastening elements (bolts, nuts,
screws, bolt screws, etc�)�
Power tool components
1 Universal tool holder
2 LED lamp
3 Torque regulator
4 Step speed selector switch
5 Indicators of the state of battery charge
6 On / off switch
7 Reverse switch
8 Ventilation slots
9 Belt clip *
10 Battery lock *
11 Battery *
12 Quick-change keyless chuck *
13 Quick-change tool holder *
14 Quick-change angle tool holder *
15 Charger *
16 Keyless chuck
17 Tool holder *
18 Fixing bush
19 Lock of quick-change attachment *
20 Screwdriver bit *
21 Screw
22 Magnetic holder *
23 Indicator (green) *
24 Indicator (red) *
* Optional extra
Not all of the accessories illustrated or described
are included as standard delivery.
Installation and regulation of power tool
elements
Before execution of any procedures, centre the
reverse switch 7.
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 specic models
are not indicated in the illustration.
Mounting / replacement of quick-change accesso-
ries (see g. 1-3)
[CT21072HQX-2]
Quick-change attachments 12, 13 or 14 enlarge the
area of power tool usage and allow to perform works in
hard-to-reach places (see g. 2.2).
• Move the lock 19 forward and hold it in this position
(see g. 1.1).
• Install one of quick-change attachments 12, 13 or 14
on universal tool holder 1 (see g. 1.2).
• Release the lock 19�
• Disassembly operations do in reverse sequence�
• Quick-change angle tool holder 14 can be set to
different positions (see g. 2.1).
• Quick-change keyless chuck 12 and quick-change
tool holder 13 (see g. 3) can be installed on quick-
change angle tool holder 14�
Mounting / replacement of accessories (see g. 4-8)
[CT21072HX-2]
With long-term use the drill bit may be-
come very warm; use gloves to remove it.
• Open the jaws of the keyless chuck 16, rotating its
front part as shown in g. 4.
• Mount / replace the accessory�
• Tighten the keyless chuck 16 without skewing the
accessory as it is shown in g. 4.
[CT21072HBX-2]
• Move backward the xing bush 18 and hold it in this
position (see g. 5).
• Mount / replace the accessory� Attention: use
accessories that have circular groove at the
stem end, their use will guarantee safe xation of
accessory in the tool holder 17.
• Release the xing bush 18�
[CT21072HQX-2]
• When installed universal tool holder 1:
• Mount / replace the screwdriver bit 20 into
universal tool holder 1, as shown onto g. 6.
Attention: the universal tool holder 1 has a built-
in magnet, therefore it is not recommended to
install double-side screwdrivers into it. They
can not be securely xed in the universal tool
holder 1 due to the small contact area of the
screwdriver end with the magnet, while the end
of the screwdriver can destroy the magnet.
• When installed quick-change tool holder 13:
• Move backward the xing bush 18 and hold it in
this position (see g. 7).

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