YATO YT-81983 Manual De Instrucciones página 15

EN
Operate power tool by insulated grasping surfaces, when performing an operation where the cutting accessory may
contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may make exposed metal parts of the power
tool "live" and could give the operator an electric shock.
Wear hearing protection when diamond drilling. Exposure to noise can cause hearing loss.
When the bit is jammed, stop applying downward pressure and turn off the tool. Investigate and take corrective actions to
eliminate the cause of the bit jamming.
When restarting a diamond drill in the workpiece check that the bit rotates freely before starting. If the bit is jammed, it may
not start, may overload the tool, or may cause the diamond drill to release from the workpiece.
When securing the drill stand with anchors and fasteners to the workpiece, ensure that the anchoring used is capable of
holding and restraining the machine during use. If the workpiece is weak or porous, the anchor may pull out causing the drill
stand to release from the workpiece.
When drilling through walls or ceilings, ensure to protect persons and the work area on the other side. The bit may extend
through the hole or the core may fall out on the other side.
Do not use this tool for overhead drilling with water supply. Water entering the power tool will increase the risk of electric shock.
PRODUCT OPERATION
Preparing for operation
Unpack the product and remove all elements of the packaging. It is recommended to keep the packaging for further storage and
transport of the product. Check the product for damage that may have occurred during transport.
Caution! Before performing any preparatory activities, make sure that the product power switch is in the "off – O/OFF"
position and that the plug of the product power cord is pulled out of the power socket.
Preparing for operation
The base of the stand should be fi xed to the substrate. This is done by means of a hole in the middle of the base. Fix the stand
using the M16 anchor sleeve. The anchor sleeve is not supplied with the product. The anchor should be set in the substrate.
Before starting assembly, select the appropriate type of substrate. The substrate intended for fi xation should be robust and of
uniform structure. Loose substrates, e.g. with stones or sand are not suitable for fi xing the base. Select fasteners according to the
substrate; you can use screw anchors, anchors, screws and other screwed fasteners. Do not use hammer-in fasteners. The forces
generated during drilling can pull such fasteners from the substrate.
Screw the fi xing rod into the anchor and place the core drill base on the rod so that the rod protrudes from the longitudinal slot in
the base. Screw the nut onto the rod, but do not tighten it yet.
Level the base with screws in the corners of the base. Tighten the nuts to the base (II) after levelling. This will prevent the levelling
screws from unscrewing.
Tighten the anchor nut so that the base is fi xed to the substrate.
This method of fi xing allows the core drill to be mounted in any position.
Screw and tighten the holder (III) to the stand head.
Install the knob of the movable stand head; the knob can be mounted on both sides of the tool housing. Put the knob on the
mandrel, then tighten the screw so that it fi ts the hole in the mandrel and blocks the possibility of the knob sliding off the mandrel
(IV).
Unscrew the screws fi xing the column to the stand base and rotate the column 180° (V). Then tighten all the screws in the reverse
order in which they were unscrewed.
Adjust the movement resistance of the stand head. To do so, use the knob (VI). Screwing the knob increases the resistance of the
stand head movement, and by unscrewing the knob the resistance of the stand head movement is reduced.
Caution! The knob is not used to completely block the movement of the head. Select the movement resistance so that the head
does not automatically change position under the weight of the core drill installed in the head, and at the same time, it is possible
to move the head smoothly using the knob.
Screw the blanking plug (VI) into the hole at the top of the stand column.
Drill bit installation
Install the drill bit by screwing it onto the core drill spindle. The drill bit thread must match the core drill thread. It is forbidden to
modify any of the threads to make them match. It is forbidden to use adapters that will adapt the drill bit fi xation to the spindle
fi xation.
Check the condition of both threads – drill bit and spindle – before installing the drill bit. The threads must be clean and free of
damage. Clean the threads with a brush with plastic bristles or a soft cloth if necessary.
There is a cooling water outlet in the spindle axis. Check whether it is not dirty. It is easier to do this before installing the drill
bit. Clean the water outlet carefully with a thin wooden or plastic stick if necessary. Do not use sharp metal objects which could
damage the water supply system. If dirt cannot be removed, contact an authorised service centre of the manufacturer.
Install the drill bit by screwing it on the spindle so that the spindle thread is completely covered. Tighten the connection by holding
O R I G I N A L I N S T R U C T I O N S
15