Ryobi P882 Manual Del Operador página 7

WARNING
:
When drilling, be prepared for binding at bit breakthrough.
When these situations occur, drill has a tendency to grab
and kick opposite to the direction of rotation and could
cause loss of control when breaking through material. If
not prepared, this loss of control can result in possible
serious injury.
 When drilling hard, smooth surfaces, use a center punch
to mark the desired hole location. This will prevent the bit
from slipping off-center as the hole is started.
 If the bit jams in the workpiece or if the drill stalls, stop
the tool immediately. Remove the bit from the workpiece
and determine the reason for jamming.
NOTE: This drill has an electric brake. When the switch trig-
ger is released, the chuck stops turning. When the brake is
functioning properly, sparks will be visible through the vent
slots on the housing. This is normal and is the action of the
brake.
INSTALLING/REMOVING BITS
See Figure 3, page 11.
 To install bits: Lock the switch trigger and remove the
battery pack.
 Slide the coupler forward and hold in position.
 Insert bit straight into coupler.
 Slide the coupler back slowly and release.
NOTE: Use only impact quality bits with a locking groove.
WARNING:
Make sure the bit is secured in the coupler before using
the impact driver. Failure to do so could cause serious
personal injury.
 To remove bits: Lock the switch trigger and remove the
battery pack. Point the nose of the tool away from you.
 Slide the coupler forward and hold in position.
 Pull the bit straight out of the coupler.
CAUTION:
The impact driver is not designed to be used as a drill.
Illustrations begin on page 10 following French and Spanish language sections.
OPERATION
P234G IMPACT DRIVER
NOTE: Maintenance information begins on page 9.
WOOD AND METAL DRILLING
For maximum performance, use high speed steel bits for
wood or metal drilling. Select drilling mode. Begin drilling
at a very low speed to prevent the bit from slipping off the
starting point.
Wood Drilling
 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 and Steel Drilling
 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 drill-
ing action.
 Maintain a speed and pressure which allows cutting with-
out overheating the bit. Applying too much pressure will:
• Overheat the drill;
• 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.
DRIVING/REMOVING SCREWS
See Figures 4 - 5, page 11.
 Place the direction of rotation selector in the correct posi-
tion for the operation.
 Hold the impact driver with one hand.
 Place the bit on the screw head and slowly depress the
switch trigger. Start the bit slowly for more control.
 As screw is driven, impacting will begin.
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.
7 — English