RIDGID R87701 Operator's Manual page 7

OPERATION
SWITCH TRIGGER
See Figure 2, page 10.
To turn the drill ON, depress the switch trigger. To turn it
OFF, release the switch trigger.
VARIABLE SPEED
This tool has a variable speed switch trigger that delivers
higher speed with increased trigger pressure. Speed is con-
trolled by the amount of switch trigger depression.
NOTE: You might hear a whistling or ringing noise from the
switch during use. Do not be concerned; this is a normal
part of the switch function.
DIRECTION OF ROTATION SELECTOR
(FORWARD/REVERSE/CENTER LOCK)
See Figure 2, page 10.
The direction of bit rotation is reversible and is controlled
by a selector located above the switch trigger. With the drill
held in normal operating position, the direction of rotation
selector should be positioned to the left of the switch trigger
for forward drilling. The drilling direction is reversed when
the selector is to the right of the switch trigger.
Setting the direction of rotation selector in the OFF (center
lock) position helps reduce the possibility of accidental start-
ing when not in use.
CAUTION:
To prevent gear damage, always allow chuck to come
to a complete stop before changing the direction of
rotation.
To stop the drill, release switch trigger and allow the chuck
to come to a complete stop.
NOTE: The drill will not run unless the direction of rotation
selector is pushed fully to the left or right.
Avoid running the drill at low speeds for extended periods
of time. Running at low speeds under constant usage may
cause the drill to become overheated. If this occurs, cool the
drill by running it without a load and at full speed.
INSTALLING/REMOVING BITS
See Figures 3 - 4, page 10.
The arrows on the keyless chuck indicate which direction
to rotate the chuck sleeve to tighten or release the drill bit.
Do not use a wrench to tighten or loosen the chuck jaws.
 To install bits, lock the switch trigger.
 Open or close the chuck jaws until the opening is slightly
larger than the bit size you intend to use.
 Raise the front of the drill slightly and 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. This could cause
the drill bit to be thrown from the drill, resulting in
possible serious personal injury or damage to the
chuck.
 Rotate the chuck sleeve to close and tighten the chuck
jaws.
WARNING:
Do not hold the chuck sleeve with one hand and
use the power of the drill to tighten the chuck jaws
on the drill bit. The chuck sleeve could slip in your
hand, or your hand could slip and come in contact
with the rotating drill bit. This could cause an ac-
cident resulting in serious personal injury.
 To remove bits, lock the switch trigger and open the
chuck jaws.
INSTALLING/REMOVING BELT HOOK OR BIT
HOLDER
See Figure 5, page 12
The belt hook and bit holder are interchangeable. They may
be installed on either side of the base.
 Align hole in belt hook or bit holder with hole in tool's
base.
 Install screw to secure belt hook or bit holder in place.
 To uninstall, remove screw and then belt hook or bit
holder.
TWO-SPEED GEAR TRAIN
See Figure 6, page 12.
 Select low speed (1) for applications requiring higher
power and torque, such as driving screws and drilling in
metal.
 Select high speed (2) for fast drilling or driving applica-
tions, for drilling in wood or masonry.
NOTICE:
Never change speeds while the tool is running.
Failure to obey this caution could result in serious
damage to the drill.
NOTE: If you have difficulty changing from one speed range
to the other, turn the chuck by hand until the gears engage.
7 – English