Operation – Ryobi D46C User Manual
Page 10
10
DIRECTION OF ROTATION SELECTOR
(FORWARD/REVERSE)
See Figure 2.
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 drilling. The drilling direction is reversed when the selector 
is to the right of the switch trigger. 
CAUTION:
To prevent gear damage, always allow the chuck to 
come to a complete stop before changing the direction 
of rotation.
To stop the drill, release the 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.
KEYLESS CHUCK
See Figure 3.
The drill has a keyless chuck that makes it simple to 
tighten or release drill bits in the chuck jaws. Grasp and 
hold the collar of the chuck with one hand. Rotate the chuck 
body with your other hand. The arrows on the chuck indicate 
which direction to rotate the chuck body in order to 
LOCK
(tighten) or
UNLOCK (release) the drill bit.
 
 
WARNING
:
Do not hold the chuck body 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.
OPERATION
UNLOCK
(RELEASE)
CHUCK
JAWS
CHUCK BODY
LOCK
(TIGHTEN)
Fig. 3
CHUCK
COLLAR
WARNING:
Always unplug the tool when installing or remov-
ing bits, adjusting settings, or when the tool is 
not in use. Failure to unplug the tool may result 
in accidental starting and serious personal injury. 
Fig. 4
BIT STORAGE
BIT STORAGE
See Figure 4.
When not in use, bits provided with the drill can be placed 
in the storage area located on the top of the drill.