Hyundai HY2158, User Manual

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5.3. Changing the Rotation.
The impact drill is not designed for reverse hammering. Failure to heed this
warning may result in damage to the drill.
The design of the switch will not permit changing the direction of rotation while
the drill is running. Release the On/Off trigger and allow the drill to stop before
changing its direction.
The impact drill will not run unless the lever is pushed fully to the left or right.
5.3.1. The direction of the chuck is controlled by a lever located above
the On/Off trigger.
5.3.2. For forward rotation move the lever to the left marked with a
forwards arrow, Fig 7.
5.3.3. For reverse rotation move the lever to the right marked with a
backwards arrow, Fig 8.
5.4. Adjusting the drill mode.
5.4.1. Locate the selector switch on the top of the drill housing, Fig 9.
Simply push the selector switch to the left hand side of the drill
(with the chuck facing forward) to select hammer drilling mode.
5.4.2. To select normal drilling mode push the selector switch to the
right hand side of the drill (with the chuck facing forward).
Tungsten carbide drill bits are required for drilling concrete, stone
and masonry. The best drilling progress is achieved using tungsten
carbide tipped drill bits.
5.4.3. Only High Speed Steel (HSS) drill bits in good condition should
be used for drilling metal or wood. Spade bits and brad point bits are only used for drilling
wood etc.
5.5. Tip for Drilling Tiles.
5.5.1. Place a piece of masking tape onto the tile in the approximate position for the hole.
5.5.2. Mark the position of the hole onto the masking tape this will prevent the drill from skidding
across the tile when the drill is started.
5.5.3. Set the selector switch to the drill symbol and slowly drill through the tile.
5.5.4. When the tile has been full drilled through change the selector switch to the hammer
symbol and continuing with hammer drilling.
5.6. Tip for Drilling Metal.
5.6.1. When drilling metal, use a light oil on the drill bit to keep it from overheating.
5.6.2. The oil will prolong the life of the bit and increase the drilling action.