Installing Bits; Removing Bits - RIDGID R861150 Operator's Manual

OPERATION
LED LIGHT
See Figure 6, page 15.
The LED light on the foot of the drill will come on when the
switch trigger is depressed. This provides additional lighting
on the surface of the workpiece for operation in lower-light
areas.
TWO-SPEED GEAR TRAIN
See Figure 7, page 15.
The drill has a two-speed gear train designed for drilling or
driving at LO (1) or HI (2) speeds. A slide switch is located on
top of the drill to select either LO (1) or HI (2) speed. When
using drill in the LO (1) speed range, speed will decrease
and unit will have more power and torque. When using drill
in the HI (2) speed range, speed will increase and unit will
have less power and torque. Use LO (1) speed for high power
and torque applications and HI (2) speed for fast drilling or
driving applications.
NOTE: If you have difficulty changing from one gear range to
the other, turn the chuck by hand until the gears engage.
CAUTION:
Never change gears while the tool is running. Failure
to obey this caution could result in serious damage
to the drill.
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 8, page 15.
When using the hammer drill for various driving applications,
it becomes necessary to increase or decrease the torque to
help prevent the possibility of damaging screw heads, threads,
workpiece, etc. In general, torque intensity should correspond
to the screw diameter. If the torque is too high or the screws
too small, the screws may be damaged or broken.
The torque is adjusted by rotating the torque adjustment
ring.
The torque is greater when the torque adjustment ring is set
on a higher setting. The torque is less when the torque adjust-
ment ring is set on a lower setting.
The proper setting depends on the type of material and the
size of screw you are using.
NOTE: The torque adjustment ring only functions in drive
mode.
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 - 24 For driving large screws
MODE SELECTOR
See Figure 9, page 15.
The mode selector allows you to quickly switch from drill
mode to drive or hammer mode.
In general, drill mode should be used for drilling and other
heavy duty applications. Drive mode should be used for
driving screws. Hammer mode should be used for hammer
drilling.
NOTE: The hammer drill has not been designed for reverse
hammering.
Use carbide-tipped bits and select hammer mode when drill-
ing in hard materials such as brick, tile, concrete, etc.
Select drilling mode when drilling with twist drills, hole saws,
etc., in soft materials.
NOTE: When drilling in hammer mode, it is advisable to use
LO (1) Speed.
SELECTING DRILL, DRIVE, OR HAMMER
MODE
See Figure 9, page 15.
Select the option that best matches the type of bit, fastener,
and material you will be using.
 Choose your application
 Choose the correct speed: LO (1) or HI (2)
 Choose the correct mode: drill, drive or hammer.

INSTALLING BITS

See Figure 10, page 15.
 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 11,
page 15. 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 GRIP (tighten) to close the chuck jaws. Do not use
a wrench to tighten or loosen the chuck jaws.

REMOVING BITS

See Figure 10, page 15.
 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 OPEN (release) to open the chuck jaws. Do not
use a wrench to tighten or loosen the chuck jaws.
 Remove the drill bit.
10 - English