Crown CT10113 Original Instructions Manual page 20

Mounting / replacement of accessories (see fig. 2)
With long-term use the drill bit may be-
come very warm; use gloves to remove
it.
Keyless chuck (see fig. 2)
• Open the jaws of the keyless chuck 1 - hold its rear
part with one hand and rotate its front part with the
other hand as it is shown in figure 2.
• Mount / replace the accessory�
• Tighten the keyless chuck 1 without skewing the ac-
cessory as it is shown in figure 2.
Mounting / dismounting of the keyless chuck (see
fig. 3-4)
• To mount the keyless chuck 1, carry out the op-
erations in consecutive stages as it is shown in
figure 3.
• To dismount the keyless chuck 1, carry out the op-
erations in consecutive stages as it is shown in fig-
ure 4�
Attention: keep in mind that in the pro-
cess of mounting / dismounting of the
drill chuck 1 the screw 8 has a left-hand
thread.
Screwdriver bit / magnetic holder (see fig. 5)
When using the power tool as a screwdriver, use
magnetic holder 9 for reliable locking of screwdriver
bits 10 (see fig. 5). A magnetic holder 9 is not needed
for extended screwdriver bits 10 (specially purposed
for screwdrivers)�
Initial operating of the power tool
Always use the correct supply voltage: the power sup-
ply voltage must match the information quoted on the
power tool identification plate.
Switching the power tool on / off
Make sure that the reverse switch 5 is not centred;
this blocks on / off switch 4.
[CT10152]
Short-term switching on / off
To switch on, press and hold on / off switch 4, to switch
off - release it�
Long-term switching on / off
Switching on:
Push on / off switch 4 and lock it in the position with
lock-on button 11�
Switching off:
Push and release on / off switch 4�
[CT10113]
Switching on:
Press on / off switch 4�
Switching off:
Release the on / off switch 4�
Design features of the power tool
Torque regulator
Rotate the regulator 2 in order to set one of the 18 (20
for model CT10152) torque values most suitable for the
work performed�
It is recommended to set the torque regula-
tor 2 into the position "Drill" to perform drill-
ing�
Step speed selector switch
Attention: one can only change the revo-
lutions per minute range after the engine
fully stops.
[CT10113]
In order to choose the "LOW" gear, move the switch 3
back� This mode is used for the fastening of screws or
for large diameter hole drilling�
In order to choose the "HI" gear, move the switch 3
forward� This mode is used for speed drilling of small
diameter holes�
[CT10152]
In order to choose the "1" gear, move the switch 3
back� This mode is used for the fastening of screws or
for large diameter hole drilling�
In order to choose the "2" gear, move the switch 3
forward� This mode is used for speed drilling of small
diameter holes�
Stepless speed adjustment
Speed is controlled from 0 to maximum by
pressing force of on / off switch 4� Weak
pressing results in low revolutions, which
enable a smooth power tool switch-on�
Changing the rotational directions (see fig. 6)
Change the direction of rotation only after
a full stop of the motor, acting otherwise
may cause damage to the power tool.
Clockwise rotation (drilling, fastening of screws) -
move the rotational direction switch 5 to the left as it is
shown in fig. 6.1.
Counter clockwise
screws) - move the rotational direction switch 5 to the
right as it is shown in fig. 6.2.
Spindle automatic locking
[CT10113]
If the on / off switch 4 is not pressed, the spindle of the
power tool is locked this enables to use the power tool
English
20
rotation (unscrewing the