Sthor 78113 Manual Original página 12

EN
PREPARING FOR WORK
CAUTION! All operations mentioned in this chapter must be carried out with the power supply disconnected – the battery must
be disconnected from the tool!
Only one of the following STHOR Li-Ion 20 V batteries can be used to power the tool: 78250, 78252, which can only be charged
using STHOR chargers 78260 or 78261. It is forbidden to use other batteries with a diff erent rated voltage and not matching the
device battery socket. It is forbidden to modify the socket or battery to make them match.
Slide the battery into the socket with the contacts facing inside the tool until the battery latch engages. Make sure that the battery
will not slide out on its own during operation. Disconnect the battery by pressing and holding the latch and then pulling the battery
out of the tool housing.
Installing screwdriver bits in the driver's chuck (II)
Caution! It is recommended to use the bits designed for tools with impact with greater or equivalent torque than the tool torque as
the tool features an impact mechanism.
Caution! Due to the impact mechanism, it is not allowed to install drill bits and work with them. If the drill bit is blocked in the hole,
the impact mechanism may cause the drill bit to break, which may lead to injuries.
Caution! Install the bits with the battery disconnected – this will prevent accidental start-up of the tool.
The driver's chuck is intended for using hexagonal i.e. the so-called "long" bits and adapters with a length of approx. 50 mm
equipped with a groove ensuring that the bit is locked in the chuck. It is not allowed to use bits shorter than 50 mm and those that
do not have a groove.
Pull the ring of the tool chuck forward, then insert the bit into the chuck and release the ring – the ring should return to its initial
position. Check that the bit has been correctly locked in the chuck; if it cannot be pulled out, this indicates correct fi xing.
To remove the bit, follow the above procedure in reverse order.
Setting the rotation direction (III)
Set the switch to the desired position. Arrows on the switch indicate the movement directions of screws with the most common
right-hand thread. In the case of screws with left-hand threads, the movement of the screw should be opposite to the direction
indicated by the arrow.
Preparatory actions for operation
Before starting work:
Fasten the workpiece to the vice or using G clamps.
Use working tools appropriate for the work to be carried out. Select the right type of bit for the screw head.
Wear work clothing and eye and hearing protection equipment.
Grasp the tool with both hands (IV).
Adopt a fi rm and stable posture.
Turn on the tool by pressing the electric power switch with your fi nger.
Caution! If any suspicious noises, cracks, odour etc. are observed during work, immediately turn off the tool and remove the
battery from the device.
USING THE TOOL
The depth of pressing the power switch determines the rotational speed and torque. The tool does not allow for setting desired
speed and torque.
Insert the bit into the screw head or place it on the nut, and only then start the device. This will prevent damage to the fasteners
or the bit. It will also reduce the risk of injury.
In the case of screwing bolts into the substrate, it is recommended to make a pilot hole with the diameter of the screw core. This
will prevent damage to the material during screwing. However, it is also possible to screw without making a pilot hole. Screwing of
both types should be started with low rotational speed and then you may increase the speed during work.
In the case of threaded connections, for example, when screwing screws into threaded holes or screwing nuts onto threaded
studs, the fi rst few turns should be done with a hand, spanner or hand screwdriver. Only after you have made sure that one com-
ponent is screwed correctly into the other can you proceed with the driver. When screwing threaded elements, it is recommended
not to exert too much pressure on the driver. This can lead to thread damage.
Once the elements have been tightened, the impact mechanism will engage, which will be indicated by the "impacts" of the rotary
mechanism. In this situation, you should release pressure on the power switch and stop tightening the elements. Proceeding with
tightening may lead to damage to fasteners.
O R I G I N A L I N S T R U C T I O N S
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