Ryobi CTH1802 Drill User Manual


 
Page 11
OPERATION
WARNING:
Be prepared for binding or breakthrough. When these
situations occur, the drill has a tendency to grab and kick
in the opposite direction, and could cause loss of control
when breaking through material. If you are not prepared,
this loss of control can result in possible serious injury.
When drilling metals, use a light oil on the drill bit to keep it
from overheating. The oil will prolong the life of the bit and
increase the drilling action.
If the bit jams in workpiece or if the drill stalls, release switch
trigger immediately. Remove the bit from the workpiece and
determine the reason for jamming.
SCREWDRIVING
TORQUE ADJUSTMENT
(Driving power of your drill-driver)
When using your drill-driver for various driving aplications, it
becomes necessary to increase or decrease the torque in
order to help prevent the possibility of damaging screw
heads, threads, workpiece, etc. In general, torque should
correspond to the intensity of 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.
See Figure 11.
The torque is greater when the torque
adjustment ring is set on a higher setting. The torque is less
when the torque adjustment ring is set on a lower setting.
The proper setting depends on the type of material and the
size of screw you are using.
TO ADJUST TORQUE
Identify the twenty four torque indicator settings located
on the front of your drill.
See Figure 11.
Rotate adjustment 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 in hard wood.
• 17 - 20 For driving large screws.
• 21 - 24 For heavy drilling.
BIT STORAGE
See Figure 12.
When not in use, bits provided with your drill can be placed
in the storage area located on the top of your drill as shown
in figure 12.
Fig. 12
2
20
22
18
16
2
20
22
18
16
BIT STORAGE AREA
SCREWDRIVER
BIT
SCREWDRIVER
BIT
TORQUE ADJUSTMENT RING
TO DECREASE
TORQUE
TO INCREASE
TORQUE
Fig. 11
WARNING:
Always wear safety goggles or safety glasses with side
shields when operating tool. Failure to do so could result
in objects being thrown into your eyes, resulting in
possible serious injury.