Ryobi R86711 Manual Del Operador página 7

OPERATION
INSTALLING AND REMOVING SDS-PLUS BITS
See Figure 7, page 11.
This tool is equipped with an SDS-Plus connection system.
Only use bits designed for use with the SDS-Plus connec-
tion system.
To install bits:
 Remove the battery pack.
 Clean the bit and grease it with machine grease before
installing it into the chuck.
 Insert the bit into the chuck and push the bit until it is
inserted as far as possible into the chuck.
 Pull on the bit to make sure it has locked into place.
To remove bits:
 Pull back the clamp collar and remove the bit.
NOTE: When hammer drilling, use only bits with hardened
metal and SDS-Plus shaft.
CHUCK ADAPTOR (NOT INCLUDED)
See Figure 8, page 11.
For drilling in metal, wood, and plastic with non-SDS-Plus
drill bits, a chuck adaptor must be used.
NOTE: Use with Rotational Drilling Mode only. Use of
Rotary Hammer mode or Chisel Only mode will damage the
tool's mechanism when used for fastening or drilling with
non-SDS-Plus bits.
BREAK-IN AND COLD STARTS
A new hammer drill may require up to five hours of operation
for break-in. When stored for long periods or in low tem-
peratures, a warm-up period of a few seconds to a couple
of minutes may be required in hammer mode.
INTERNAL CLUTCH
The hammer drill features an internal clutch that is preset
to allow a sufficient amount of force for most drilling opera-
tions. It may slip when the bit binds in the hole or the tool
is overloaded. Be aware that an instant before the clutch
slips, a torque reaction can occur allowing the hammer drill
body to twist in the opposite direction of the turning bit. The
clutch will automatically reset when the binding force of the
bit is removed.
NOTE: It is normal during the drilling process for the bit to
momentarily stop rotating when the clutch is slipping. Con-
tinued drilling will not damage the tool.
MODE SELECTOR
See Figure 9, page 12.
The mode selector gives the operator four options.
NOTE: If the product has not been operated recently, the
mode selector may be difficult to turn. If you cannot change
modes, turn the tool on and allow it to run for a few seconds.
This should free the gears and allow you to change modes
normally.
DRILLING
 Check the direction of rotation selector for the correct
setting (forward or reverse).
 Secure the workpiece in a vise or with clamps to keep it
from turning as the bit rotates.
 Hold the tool firmly and place the bit at the starting point
of the workpiece.
WARNING:
Do not drive a screw where there is likely to be
hidden wiring behind the surface. Contact with a
"live" wire will make exposed metal parts of the tool
"live" and possibly shock the operator. If you must
drive a screw where hidden wire may be present,
always hold tool by insulated gripping surfaces
(handle) when performing the operation to prevent
a shock to the operator.
 Depress the switch trigger to start the tool.
 Move the bit into the workpiece, applying only enough
pressure to keep the bit cutting. Do not force the tool or
apply side pressure to elongate a hole. Let the tool do
the work.
7 – English
Rotary Hammer Mode
Hammering action plus drill bit rotation.
Use for hammer drilling.
Rotational Drilling Mode
Drill bit rotation only; no hammering
action. Use for drilling and other heavy
duty applications.
Chisel Adjust Mode
Position allows the user to rotate the bit
to the optimum position for chiseling
applications.
Chisel Only Mode
Hammering action only for chipping
concrete, tile, and masonry.