Ratio PRO XF20-T Manual De Instrucciones página 45

Gear II
High speed range: for working with small drilling
diameter
G
WARNING: To prevent gear damage,
always allow the chuck to come to a
complete stop before changing the direction
of rotation or the two-speed gear control.
5. CHUCK ADJUSTMENT (See Fig H)
To open the chuck jaws rotate the front section of
the chuck. Insert the drill bit between the chuck
jaws and rotate the front section in the opposite
direction. Ensure the drill bit is in the center of
the chuck jaws. Finally, firmly rotate the front
chuck section in the opposite directions. Your drill
bit is now clamped in the chuck.
H
6. TORQUE ADJUSTMENT (See Fig I)
(Screw driving force of your drill driver)
The torque is adjusted by rotating the torque
adjustment ring. 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.
Make the setting as follows:
1 - 4 for driving small screws
5 - 9 for driving screws into soft material
10 - 14 for driving screws into soft and hard
material
15 - 19 for driving screws into hard wood
20 - 21 for driving larger screws
for heavy drilling
for drilling in masonry and concrete
I
7. AUTOMATIC SPINDLE LOCK (SEE FIG J)
The automatic spindle lock allows you to use it
as a regular screwdriver. You can give an extra
twist to firmly tighten a screw, loosen a very tight
screw or continue working when the battery
energy has expired. For manual screwdriver
purposes, the chuck is automatically locked
when the tool is off.
J
8. USING THE LED LIGHT (see Fig K)
The LED light(b) allows you to keep a clear view
under less illuminated circumstances. To turn on
the light simply press the on/off switch. When
you release the on/off switch, the light will go out.
b
K
9. DRILLING
When drilling into a hard smooth surface, use a
center punch to mark the desired hole location.
This will prevent the drill bit from slipping off
center as the hole is started. Hold the tool
firmly and place the tip of the bit at the point to
be drilled. Depress the switch trigger to start
the tool. Move the drill bit into the workpiece,
applying only enough pressure to keep the bit
rotating. Do not force or apply side pressure to
elongate a hole.
Tungsten carbide drill bits should
always be used for concrete and
masonry. When drilling in metal, only use
45