RIDGID ZRR9651 Use and Care Manual download pdf (Page 10)

10 - English

OPERATION

To remove:

Lock the switch trigger by placing the direction of rotation

selector in the center position.

Open the chuck jaws.

NOTE: Rotate the chuck body in the direction of the arrow

marked UNLOCK to open the chuck jaws. Do not use a

wrench to tighten or loosen the chuck jaws.

 Remove the drill bit.

DRILLING

See Figure 13, page 15.

 Check the direction of rotation selector for the correct

setting(forwardorreverse).

 Secure the material to be drilled in a vise or with clamps

tokeepitfromturningasthedrillbitrotates.

 Hold the drill firmly and place the bit at the point to be

drilled.

 Depress the switch trigger to start the drill.

 Move the drill bit into the workpiece, applying only enough

pressure to keep the bit cutting. Do not force the drill or

apply side pressure to elongate a hole. Let the tool do

the work.

WARNING:

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

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 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.

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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. 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.

 Select hammer 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.

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RIDGID ZRR9651 Use and Care Manual Page 10

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