Makita 8406C Manual De Instrucciones página 6

Depth gauge (Fig. 4)
The depth gauge is convenient for drilling holes of uni-
form depth. Insert the depth gauge into the hole in the
grip base and adjust the depth gauge to the desired
depth. Then tighten the clamp screw to secure the depth
gauge.
Switch action (Fig. 5)
To start the tool, simply pull the trigger. Release the trig-
ger to stop. The tool will not start if you turn on and off
instantly. For continuous operation, pull the trigger and
then push in the lock button. To stop the tool from the
locked position, pull the trigger fully, then release it.
CAUTION:
Before plugging in the tool, always check to see that the
trigger switch actuates properly and returns to the "OFF"
position when released.
Speed adjusting dial (Fig. 7)
Tool speed can be infinitely adjusted from 900 to 4,000 min
Numbers from 1 through 6 are indicated on the dial. Faster speeds are obtained by setting the dial to a higher number.
Number of blows per minute varies according to the tool speed. The following charts indicate resultant tool speeds in
various lever and dial positions explained above.
When the speed
change lever is
set to the "1" posi-
tion.
Refer to the table below for selecting the tool speed most suitable for your workpiece and bit.
Speed change lever
Speed adjusting dial
Workpiece
Diamond core bit
Concrete or brick
Tungsten-carbide
tipped bit
Steel
Drill bit for steel
Aluminum
Wood Drill bit for wood
6
Numbers on dial
Type of bit Bit diameter
32 mm
65 mm
120 mm
8 mm
14 mm
20 mm
6.5 mm
13 mm
6.5 mm
13 mm
18 mm
30 mm
Torque limiter
This tool is equipped with torque limiters. They will actu-
ate when a certain torque level is reached. When this
happens, the chuck will stop turning.
CAUTION:
• Do not continue to operate the tool for more than two
seconds while the torque limiter is actuating.
• Do not let the torque limiter actuates too frequently.
Speed change lever (Fig. 6)
Tool speed and number of blows per minute can be
adjusted in two ranges by turning the speed change
lever. For low speed, turn the speed change lever to the
"1" position. For high speed, turn the speed change lever
to the "2" position.
CAUTION:
Always set the speed change lever carefully into the cor-
rect position. If you operate the tool with the speed
change lever positioned half-way between the "1" posi-
tion and the "2" position, the tool may be damaged.
–1
with the speed adjusting dial and speed change lever.
When the speed
change lever is set
to the "2" position.
1 2 3 4 5
Numbers on dial
6 1 2 3 4 5 6