YATO YT-828296 Manual Original página 29

EN
and grinding. Perform the assembly in the same manner as in the case of grinding wheels. When using diamond segmented discs,
the gap between the segments must not exceed 10 mm, measured at the perimeter of the disc, and the segments must have a
negative angle of attack.
It is recommended to use grinding wheels made of materials intended for machining a given type of metal. Refer to the
documentation provided with the grinding wheel.
Grinding wheels intended for machining stone or diamond grinding wheels for dry working can be used for the machining of
ceramic materials.
It is recommended to use wire brushes and sandpaper discs to remove old paint coats from metal parts.
It is forbidden to modify the fi xing hole, spindle or use reduction rings to adjust the diameter of the fi xing hole to the spindle
diameter. It is forbidden to use grinding wheels with a fi xing hole diameter other than specifi ed in the technical data table. It is
forbidden to use grinding wheels with a cutting chain or cutting discs because they increase the risk of tool kickback towards the
operator.
Caution! It is forbidden to use discs other than those allowed for use in this manual, even if they can be assembled on the grinder
spindle. Improper discs may not withstand the loads generated during the operation of the angle grinder. Damaged or decaying
grinding wheels present a risk of serious injury or death.
CAUTION! All operations mentioned in this chapter must be carried out with the power supply disconnected – the battery must
be disconnected from the tool!
USING THE ANGLE GRINDER
Remove the battery from the tool socket!
Before using the tool, check that the housing and battery body are not damaged.
If any damage is visible, it is forbidden to connect the battery to the tool!
Fix the abrasive disc cover and handle.
Never work with the grinder without the abrasive disc guard installed!
Select the type of abrasive disc suitable for the type of operation and install the disc on the grinder spindle.
The workpiece must be secured, e.g. with vices or clamps, in such a manner that it cannot move during work. The grinder disc
rotates at a high speed and, if not properly secured, the material may move uncontrollably during work, which would increase the
risk of serious injury.
In the case of cutting, support the material being cut on both sides of the cutting line, but in such a way that it does not cause the
cutting disc to jam during cutting. Place the supports near the edge of the material being cut and near the cutting line.
Wear eye protection, hearing protectors and protective gloves.
Check that the power switch is in the off position "O". Then connect the battery to the tool.
Keep an appropriate body position to ensure balance and turn the tool on with the switch.
If the power switch is located in the upper or side wall of the grinder body, press the power switch in the rear part of it to turn it on,
and then, without releasing the pressure, move it forward in the direction marked with the symbol "I." The power switch may have
a hitch that allows it to be locked in this position easier prolonged use. To turn the grinder off , press the power switch on the back
of the grinder and allow it to retract. If the power supply is lost while working with the locked power switch, it will only be possible
to start work after the power switch has been restored after unlocking and restarting the power switch.
If the grinder is equipped with a power switch located in the lower part of the handle, press and hold the lock button and then press
the power switch. Hold the power switch pressed while performing work, but it is not necessary to hold the lock button. Releasing
the pressure on the power switch will turn the grinder off . Such a power switch cannot be locked for operation.
Start work by applying the correct surface of the disc to the workpiece:
- when using abrasive discs grind with the side and/or front surfaces,
- in the case of leaf grinding wheels, grind with the side surface so that the sandpaper leaves move parallel to the workpiece,
- in the case of velcro discs enabling the attachment of sandpaper, sanding should be carried out with the side surface,
- in the case of wire brushes, the surface should be worked on with ends of the wires and not with their side surface,
- in the case of cutting discs, cut with the front surface, do not grind with the front surface of the cutting discs.
Speed control (VI)
Speed control is only possible when the supply battery is connected.
Press the button and the lights next to the gear number are illuminated one after another. The higher the number of gears, the
higher the speed. Once the highest speed is reached, the next press of the button will shift to the lowest speed gear. Lower gears
have lights illuminated in green and higher gears have lights illuminated in red.
The lower speed should be used for brushes and grinding discs made of sandpaper. The high speed should be used for abrasive
discs.
When grinding with the side surface, keep the grinder at an angle of not more than 30 degrees from the surface to be worked on
(VII). Move the grinder smoothly to and from yourself.
When cutting, the disc should be at a right angle to the cut surface. Do not cut at a diff erent angle. It is forbidden to change the
O R I G I N A L I N S T R U C T I O N S
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