Sthor 78127 Manual página 17

GB
it usually breaks. If a rotating fi le or cutter made of self-bonded carbide is seized, it may get out of the saw cut and cause loss of
control of tool.
Warnings related to grinding and cutting by means of abrasive wheels
Use only discs designed to work with the tool and guards designed for the particular type of job. For example, do not
grind using the edge of cutting wheels. Abrasive wheels for cutting are designed for peripheral load; lateral forces applied to
such wheel can make it fall to pieces.
In case of threaded abrasive cones and studs, use only undamaged shafts of plates with fl at fl ange of the right size and
length. The use of correct shaft will reduce the risk of cracking.
Do not "jam" the cutting wheels or apply too much pressure to them. Do not try to increase the cutting depth. Excessive pressure
on wheel increases the load, torsion and abrasion resistance during cutting, and the likelihood of a rebound or damage to wheel.
Do not place your hands in the line and behind the spinning wheel. If in the course of work the disc moves away from your
hands, then in the case of rebound the rotating wheel and tool will be directed towards the operator.
If the wheel has been seized, locked, or in the event of discontinued cutting for any reason, turn off the tool and hold it
idle until the wheel stops completely. Never attempt to release a cutting wheel from a saw cut if the wheel is in motion,
otherwise it may cause a rebound. Investigate the causes and take the correct steps to eliminate the cause of locking the
wheel.
Do not resume cutting in the workpiece. Let the wheel reach full rotational speed, and then carefully resume cutting. The
wheel may be locked, get out of the material or bounce if the power tool is started while in the workpiece.
In order to avoid wheel clamping or bouncing, you have to support panels and other oversized materials. Large-size
materials tend to bend under their own weight. Supports must be placed under the workpiece near the line of cutting and near the
edge of the material on both sides of the cutting line.
Special caution must be taken when cutting cavities in walls or other surfaces. The wheel can cut gas and water pipes or
electric cables, as well as objects that will cause a rebound.
Warnings related to work with wire brush
Caution must be taken, because the wire splinters are ejected out of the brush also during normal operation. Do not
overload the wires by applying excessive force to the brush. Wires can easily puncture light clothing and/or skin.
Before the use, for at least one minute let brushes reach the operating speed. Then, no one can stand in front of or in line
of the brush. Loose splinters of wires or wires will be thrown out of the brush during this operation.
Direct the material from the spinning brush away from you. While working, small splinters and small pieces of wire can be
thrown out at high speed and stick into the skin.
PREPARATION FOR WORK
ATTENTION! All the operations mentioned in this point must be realised with the power supply off .
- the battery must be disconnected from the tool!
Safety recommendations for battery loading
Attention! Before loading may start make sure the body of the charger, the cable and the plug are not broken or damaged. It
is prohibited to use a damaged loading dock and charger! For the purpose of loading batteries only the charging dock and the
charger provided may be used. Using another charger may be a cause of fi re or damage the tool. Batteries may be charged only
in a dry room, protected from unauthorised persons, particularly children. Do not use the charging dock and the charger without
permanent supervision of an adult! If it is necessary to leave the room where loading is taking place, it is required to disconnect the
charger from the mains, removing the charger from the mains socket. In case when smoke comes out of the charger, or a strange
smell is emitted, etc., it is required to immediately remove the plug of the charger from the mains socket!
The drill and automatic return screwdriver is provided with an unloaded battery, so before work may commence, it is required
to charge it following the procedure below, using the charger and charging dock provided. Li-ION batteries do not show the so
called "memory eff ect", so it is allowed to charge them at any moment. However, it is recommended to discharge them during
normal work, and then load them to their full capacity. If due to the nature of the task it is not possible to do so each time, then it
is required to do it at least from time to time. Under no circumstances is it allowed to discharge the batteries short-circuiting the
electrodes, since this would cause irreversible damage! It is also prohibited to check the load of the batteries, short-circuiting the
electrodes for sparking.
Storage of the battery
In order to prolong the life of the battery, it is required to provide adequate storage conditions. The batteries can go through ap-
proximately 500 „loading - discharging" cycles. The battery must be stored between 0 and 30°C, at the relative humidity of 50%. In
order to store the battery for a prolonged period, it is required to charge it to approximately 70% of its capacity. In case of prolonged
storage, it is required to recharge the battery once a year. Do not permit excessive discharging of the battery, since this would
reduce its life and may cause irreversible damage.
During storage, the battery will be gradually unloading due to leakage conductance. The process of automatic unloading depends
O R I G I N A L I N S T R U C T I O N S
17