Ryobi Autoshift CDA1802 User Manual Download

Page: 6 / 129

English

OPERATION

WARNING

Do not hold the chuck with one hand and use the
power of the drill to tighten the chuck jaws on the
drill bit. The chuck body could slip in your hand,
or your hand could slip and come in contact with
the rotating drill bit. This could cause an accident
resulting in serious personal injury.

INSTALLING BITS

See Figures 4 - 5.

■

Lock the switch trigger by placing the direction of
rotation selector in the center position.

■

Open or close the chuck jaws to a point where the
opening is slightly larger than the bit size you intend
to use. Also, raise the front of the drill slightly to keep
the bit from falling out of the chuck jaws.

■

Insert the drill bit.

WARNING

Make sure to insert the drill bit straight into the
chuck jaws. Do not insert the drill bit into the
chuck jaws at an angle then tighten, as shown
in figure 9. This could cause the drill bit to be
thrown from the drill, resulting in possible serious
personal injury or damage to the chuck.

■

Tighten the chuck jaws securely on the bit.

NOTE:

Rotate the chuck body in the direction of the

arrow marked

LOCK

to close the chuck jaws. Do not

use a wrench to tighten or loosen the chuck jaws.

REMOVING BITS

See Figure 4.

■

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.

ADJUSTABLE

TORQUE

CLUTCH

This product is equipped with an adjustable torque
clutch for driving different types of screws into different
materials. The proper setting depends on the type of
material and the size of screw you are using.

ADJUSTING TORQUE

See Figure 6.

There are twenty-four torque indicator settings located on
the front of the drill.

■

Rotate the adjusting ring to the desired setting.

• 1 - 4

For driving small screws

• 5 - 8

For driving screws into soft material

• 9 - 12

For driving screws into soft and hard

materials
• 13 - 16

For driving screws into hard wood

• 17 - 20

For driving large screws

• 21-

For heavy drilling

AUTOSHIFT™

See Figure 6.

During drilling, if the load increases so that more torque
is required, the drill automatically shifts from high speed
to low speed.
The green “

SPEED

” LED will light when the switch trigger

is depressed.
The blue “

POWER

” LED indicates that more torque is

required and the drill has automatically shifted into low
speed.
The variable speed switch trigger should be used to
control speed.

DRILLING

See Figure 7.

■

Check the position 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.