Ryobi D552HK - Manual (Page 12)

1
OPERATION
Fig. 8
USING THE AUXILIARy HANDLE ASSEMBLy
See Figure 8.
The drill is equipped with an auxiliary handle assembly. For
ease of operation, use the handle with either the left or right
hand. The handle can be rotated 360°.
To adjust the auxiliary handle assembly:

Loosen the handle assembly by turning the handle
counterclockwise.
 Rotate the handle assembly to the desired operating
position.
 Securely tighten by turning the handle assembly
clockwise.
Be sure the handle assembly is securely tightened against
the depth stop clamp. This secures the depth stop rod at the
desired depth of cut. It also secures the handle assembly.
NOTE: For convenience and ease of starting threads, the
hex nut has been trapped inside the molded slot in the
handle assembly.
The depth stop rod helps control the depth of drilled
holes.
NOTE: When properly installed, the teeth on the depth stop
rod should be aligned with the teeth indicator on the depth
stop clamp.
Adjust the depth stop rod so that the drill bit extends beyond
the end of the rod to the required drilling depth.
When drilling holes with the depth stop rod installed, the
desired hole depth has been reached when the end of the
rod comes in contact with the surface of the workpiece.
LOCk-ON BUTTON
See Figure 9.
This drill is equipped with a lock-on feature, which is
convenient for continuous drilling for extended periods of
time.
To lock-on:

Depress the switch trigger.
 Push in and hold the lock-on button, located on the side
of the handle.
 Release the switch trigger.
 Release the lock-on button and the drill will continue
running.
 To release the lock, depress and release the switch
trigger.
If the lock-on feature is engaged during use and the drill
becomes disconnected from the power supply, disengage
the lock-on feature immediately.
TIGHTEN
AUXILIARY HANDLE
ASSEMBLY
DEPTH
STOP ROD
DRILL BIT
DECREASE
DRILLING DEPTH
INCREASE
DRILLING DEPTH
DRILLING
DEPTH LOOSEN
360°
ROTATION
SWITCH
TRIGGER
LOCK-ON
BUTTON
Fig. 9