YATO YT-82055, Original Instructions Manual

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15
EN
O R I G I N A L I N S T R U C T I O N S
key in the chuck, and then, holding the spindle with a fl at spanner, unscrew the drill chuck from the spindle (VI). The spindle has
a right-hand thread and it should be unscrewed in a counterclockwise direction.
Screw the adapter bush onto the spindle thread and fi x it with two fl at spanners (VII). Screw the mixer rod into the bush and tighten
it with two fl at spanners (VIII).
Warning! The mixer arm diameter must not be greater than that speci fi ed in the technical data table.
The drill chuck must be fi xed in the reverse order of disassembly, tightened with an Allen and a fl at spanner. Remember to fi x it
with a screw. Due to the left-hand thread of the screw, it should be screwed in a counterclockwise direction.
Warning! It is forbidden to use the tool with the drill chuck not tightened and not secured with a screw. Improper assembly of the
drill chuck can cause it to unscrew during operation, which will lead to a loss of control of the tool and can lead to serious injury.
Rotational speed control (IX)
The drilling machine is equipped with a stepless rotational speed adjustment. The adjustment is carried out by means of a knob
located on the power switch. The rotation marker, in the form of an arrow, “+” and “-” symbols or similar symbols, indicates in which
direction the knob should be rotated to increase or decrease the rotational speed. The rotation of the knob adjusts the range of the
power switch movement, which translates into the maximum value of rotational speed. By gradually pressing the power switch,
the motor rotational speed is increasing.
Setting the rotation direction (X)
Turn the rotation direction switch to the R (clockwise rotation) or L (counterclockwise rotation) position.
Caution! The direction of rotation must only be changed when the supply voltage is disconnected!
Preparatory actions for operation
In case of drilling, before starting work attach the workpiece to a vice or using G clamps. Use working tools appropriate for the
work to be carried out. Make sure that the drill bits are sharpened and in good condition. Wear work clothing and eye and hearing
protection equipment. Insert the plug of the drilling machine power cord into mains socket. Grasp the tool with both hands by the
handle and the additional handle. Adopt a fi rm and stable posture. Make sure that the assembled accessory does not come into
contact with any object. Perform a test run. Turn on the tool by pressing the electric power switch with your fi nger. Allow the tool
to operate for at least 30 seconds. If during this time the tool does not show any signs of malfunction, e.g. excessive vibration or
increased noise, you can start working.
Warning! If suspicious noises, cracks, or suspicious odour etc. are observed, immediately turn o ff the tool and pull the plug out of
the mains socket. It is forbidden to restart the tool without removing the causes of malfunction.
USING THE TOOL
Using the right-hand or left-hand rotation direction
Use right-hand rotation when drilling with commonly used right-hand drill bits.
Apply left-hand rotation in case of jamming of the right-hand drill bit in the material and when removing screws.
When removing the screws, use a minimum rotational speed.
Using the power switch lock
It is recommended to use the power switch lock in case of prolonged work. To do this, while pressing the power switch, press the
lock button with your thumb and release the power switch.
To deactivate the lock, press the electric power switch.
Drilling in wood
Before making a hole, it is recommended to fi x the workpiece with G clamps or in a vice, and then use a punch or a nail to de-
termine the place of drilling. Attach the correct drill bit to the chuck, set the speed, connect the drilling machine to the mains and
start drilling.
When making through holes, it is recommended to place a wooden pad under the material, so that the edge of the hole at the
outlet will not be torn.
In the case of drilling holes with large diameters, it is recommended to drill a smaller guide hole beforehand.
Drilling in metals
Always fasten the workpiece securely.
In the case of a thin sheet, it is recommended to place a piece of wood under it to avoid unwanted bends, etc. Then mark the
locations of holes with a punch and start drilling. Use drill bits intended for steel. It is recommended to use sintered carbide drill
bits when drilling in white cast iron. When drilling larger holes, it is recommended to make a smaller guide hole beforehand. When
drilling in steel, use general purpose lubricating oil to cool the drill bit. For aluminium, use turpentine or para ffi n as a coolant.
Do not use cooling agents when drilling in brass, copper or cast iron. For cooling, remove the drill bit from the material frequently
to allow it to cool down.