16
times especially when using the chisel actions.
Proper safety gloves are also recommended.
When using chisel a dust mask is necessary be-
cause of the cement dust created by the action.
Note:
If you see some sparks flashing in the
ventilation slots do not panic, this is normal and
will not damage the tool.
Working hints for your
rotary hammer
• Always use sharp good quality drill bits and
chisels. The performance of the machine is de-
pendant on the quality of the bits used. Reduce
the pressure on the drill bit when it is about to
break through. This will prevent the drill from
jamming.
• When drilling a large hole, first drill a pilot hole
using a smaller drill bit.
• Always apply pressure to your drill bit in a
straight line, and if possible at right angles to
the work piece.
• When drilling holes into walls, floors etc., al
-
ways make sure that there are no live electrical
wires, or pipe work in the path of the bit. Al-
ways operate your drill using both the handle
and the front handle.
• Never change the operating mode whilst the
drill is running.
• When using the product in the hammer only
mode, or when chiselling masonry, make sure
that you wear safety glasses and protective
gloves.
• Do not apply excessive pressure to the tool
when chiselling. Excessive force does not
speed up the work.
Summary of Contents for ERB121SDS
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