STHOR 79005 - Инструкция по эксплуатации - Страница 14

14

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O R I G I N A L   I N S T R U C T I O N S

Drilling in metals

It is always necessary to fix the material to be processed securely. In case of thin sheet metal, it is recommended to place a piece 

of wood under it, so as to avoid any deformations. Then mark the places of drilling using a punch and start drilling. Use drills for 

steel. In case of drilling in white cast iron, it is recommended to use drills with sintered carbide bits. While drilling larger holes, it is 

recommended to drill first a smaller guide hole. While drilling steel, cool the drill with machine oil. In case of drilling in aluminium, 

use turpentine oil or paraffin to cool the drill. In case of drilling in brass, copper or cast iron do not use any substances to cool the 

drill. In order to cool it, is required to remove it frequently from the material.

Drilling in ceramic materials

Drilling in hard and compact materials: concrete, hard bricks, stone, marble etc.)

Before drilling the proper hole, it is recommended to drill first a smaller guide hole with the hammer function off. The proper hole 

should be drilled with the hammer function on. Use drills with sintered carbide bits in good conditions.

Drilling in glaze, soft brick, plaster, etc.

Drill as described in the point above, but without hammer action

.

From time to time remove the drill from the hole, in order to remove dust and debris. While drilling press the tool hard with constant 

strength.

Using the drill to drive or remove screws 

A drill with adjustable rotation and a switch to change the direction of rotation may also be used to drive screws in and remove 

them. In order to do so, the following is recommended:

- use the lowest rotational speed,

- use appropriate bits.

Bits may be installed directly in the chuck, or with a special magnetic holder.

In order to remove a screw set the direction of rotation to the left (L).

Carving holes

The drill may be used to carve larger holes in wood, using special drills of fixed diameter or interchangeable bits from the saw set 

– jig-saws. In order to obtain smooth edges of the outlet of the hole, place a piece of wood under the material.

Using attachments

Drills with adjustable direction of rotation should not be used with attachments.

Additional remarks

During work do not exert excessive pressure on the material to be processed and do not make abrupt movements, so as not to 

damage the tool and the drill. 

Make regular breaks during work. 

Avoid overloading the tool. 

The temperature of the external surfaces must not exceed 60OC. 

Once work has been finished, turn the drill off, unplug it from the mains and proceed to maintenance and inspection. 

The declared total value of vibrations has been determined by means of a standard method and it may be used for comparative 

purposes. The declared total value of vibrations may be applied in the preliminary assessment of exposure. 

Attention! The emission of vibrations during work with the tool may differ from the declared value, depending on the use of the 

tool. 

Attention! It is required to determine safety means to protect the operator, which are based on assessment of exposure under 

real operating conditions (including the whole working cycle, as for example the time when the tool is of or idling, and the time of 

activation).

MAINTENANCE AND OVERHAUL

ATTENTION! Before any adjustment, technical service or maintenance operations unplug the tool. Once the operations have been 

finished, the technical conditions of the tool must be assessed by means of external evaluation and inspection of the following 

elements: body and handle, conductor with a plug and deflection, functioning of the electric switch, patency of ventilation slots, 

sparking of brushes, noise level of functioning of bearings and gears, start-up and smoothness of operation. During the guarantee 

period, the user cannot dismantle the electric tools or change any sub-assemblies or elements, since it will cancel any guarantee 

rights. All irregularities detected at overhaul or during functioning of the tools are a signal to have the tool repaired at a service 

shop. Once the functioning has been concluded, the casing, ventilation slots, switches, additional handle and protections must be 

cleansed with a stream of air (at a pressure not exceeding 0.3 MPa), with a brush or a cloth without any chemical substances or 

cleaning liquids. Tools and handles must be cleansed with a clean cloth.