Assembly, Danger / danger / peligro – Ryobi DP121L User Manual
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ASSEMBLy
laser
adjustment
knob
laser
housinG
set
screw
INSTALLING/USING THE SPINDLE LOCK 
LEVER
See Figure 14.
The spindle lock is installed by aligning the threaded post on 
the lock lever with the hole on the left side of the tool then 
turning the post clockwise. Securely tightening the spindle 
lock lever locks the spindle in place. Turning the lock lever 
counterclockwise will loosen the spindle.
CHECKING/ADJUSTING LASER ALIGNMENT
See Figure 15.
Check the laser alignment to ensure the intersection of the 
laser lines is precisely at the spot where the drill bit meets 
the workpiece. If it is not, the laser lines should be adjusted 
using the laser adjustment knobs located on opposite sides 
of the head assembly.
	
Mark an “X” on a piece of scrap wood.
Insert a small drill bit into the chuck and align its tip to 
the intersection of the lines of the “X”.
Secure the board to the table.
Turn on the laser and verify the laser lines align with the 
“X” on the workpiece. 
If the laser lines do not align, loosen the set screws on 
each of the laser housings with a hex key and rotate the 
laser adjustment knobs until the lines meet in the center 
of the “X”. Retighten the set screws to secure.
WARNING:
Use of controls or adjustments or performance of 
procedures other than those specified herein could result 
in hazardous radiation exposure.
Fig. 14
Fig. 15
turn clockwise
to install / lock
the sPindle
DANGER / DANGER / PELIGRO
DANGER / DANGER / PELIGRO