Ryobi SDS60 Manuel d'utilisateur télécharger pdf (Page 14)

OPERATION

WARNING:

Be prepared for binding at bit breakthrough. When these

situations occur, the rotary hammer has a tendency to

grab and kick in the opposite direction and could cause

loss of control when breaking through material. If not

prepared, this loss of control can result in possible seri-

ous injury.

 When drilling hard, smooth surfaces, use a center punch

to mark the desired hole location. This will prevent the

drill bit from slipping off-center as the hole is started.

 When drilling metals, use a light oil on the drill bit to keep

it from overheating. The oil will prolong the life of the bit

and increase the drilling action.

 If the bit jams in the workpiece or if the rotary hammer

stalls, stop the tool immediately. Remove the bit from the

workpiece and determine the reason for jamming.

WOOD DRILLING

For maximum performance, use high speed steel bits for

wood drilling.

 Select drilling mode.

 Begin drilling at a very low speed to prevent the bit from

slipping off the starting point. Increase the speed as the

drill bit bites into the material.

 When drilling through holes, place a block of wood behind

the workpiece to prevent ragged or splintered edges on

the back side of the hole.

METAL DRILLING

For maximum performance, use high speed steel bits for

metal or steel drilling.

 Select drilling mode.

 Begin drilling at a very low speed to prevent the bit from

slipping off the starting point.

 Maintain a speed and pressure which allows cutting

without overheating the bit. Applying too much pressure

will:

• Overheat the rotary hammer;

• Wear the bearings;

• Bend or burn bits; and

• Produce off-center or irregular-shaped holes.

 When drilling large holes in metal, start with a small bit,

then finish with a larger bit. Also, lubricate the bit with oil

to improve drilling action and increase bit life.

MASONRY DRILLING

For maximum performance, use carbide-tipped masonry

impact bits when drilling holes in brick, tile, concrete, etc.

 Slide adjustment button on rotary hammer left for hammer

drill mode.

 Apply light pressure and medium speed for best results

in brick.

 Apply additional pressure for hard materials such as

concrete.

 When drilling holes in tile, practice on a scrap piece to

determine the best speed and pressure. Begin drilling at

a very low speed to prevent the bit from slipping off the

starting point.

CHISELLING

When using the chisel feature on the rotary hammer, use only

approved chisel bits. The supplied chisel bit will work with

the SDS chuck only. Chisel only approved materials such as

ceramics, concrete, brick, or other masonry.

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Ryobi SDS60 Manuel d'utilisateur Page 14

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