Ryobi HP1441 - Manual (Page 10)

Page 10
OPERATION
REMOVING BITS
See Figure 7.
■ Place the direction of rotation selector in center position.
This will lock the switch trigger in the off position.
■ Loosen the chuck jaws from drill bit .
■ To loosen: grasp and hold the collar of the chuck with one
hand, while rotating chuck body with your other hand.
Note: Rotate chuck body in the direction of the arrow
marked RELEASE to loosen chuck jaws. DO NOT use a
wrench to tighten or loosen the chuck jaws.
■ Remove drill bit from chuck jaws.
SCREWDRIVING
TORQUE ADJUSTMENT
(Driving power of your drill-driver)
When using your drill-driver for various driving applications,
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 intensity
should correspond to 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 9. The torque is greater when the torque adjust-
ment 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 9.
■ 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 10.
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 10.
LEVEL DRILLING
See Figure 11.
A convenient new feature provided with your drill is a level.
It is recessed in the motor housing on top of your drill. It can
be used to keep drill bit level during drilling operations.
Fig. 9
Fig. 10
TO DECREASE
TORQUE
TO INCREASE
TORQUE
TORQUE
ADJUSTMENT
RING
SCREWDRIVER BITS
BIT
STORAGE
AREA
LEVEL
2
4
6
8
1
1 8
22
2
4
0 2
2 2
20
2
4
6
8
1
Fig. 11