Makita 6203D Manual page 8

Switch action (Fig. 5)
CAUTION:
Before inserting the battery cartridge into the tool, always
check to see that the switch trigger actuates properly and
returns to the "OFF" position when released.
To start the tool, simply pull the trigger. Tool speed is
increased by increasing pressure on the trigger. Release
the trigger to stop.
Reversing switch action (Fig. 6)
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation
before the tool stops may damage the tool.
This tool has a reversing switch to change the direction of
rotation. Depress the reversing switch lever from the A
side for clockwise rotation or from the B side for counter-
clockwise rotation. When the switch lever is in the neutral
position, the switch trigger cannot be pulled.
Speed change (Fig. 7)
To change the speed, first switch off the tool and then
slide the speed change lever to the "II" side for high
speed or "I" side for low speed. Be sure that the speed
change lever is set to the correct position before opera-
tion. Use the right speed for your job.
CAUTION:
• Always set the speed change lever fully to the correct
position. If you operate the tool with the speed change
lever positioned half-way between the "I" side and "II"
side, the tool may be damaged.
• Do not use the speed change lever while the tool is run-
ning. The tool may be damaged.
Adjusting the fastening torque (Fig. 8)
The fastening torque can be adjusted in 18 steps by turn-
ing the adjusting ring so that its graduations are aligned
with the pointer on the tool body. The fastening torque is
minimum when the number 1 is aligned with the pointer,
and maximum when the
pointer.
The clutch will slip at various torque levels when set at
the number 1 to 5. The clutch is designed not to slip at
A
the marking. Before actual operation, drive a trial screw
into your material or a piece of duplicate material to
determine which torque level is required for a particular
application.
NOTE:
• The adjusting ring does not lock when the pointer is
positioned only half-way between the graduations.
• Do not operate the tool with the adjusting ring set
between the number 5 and the
be damaged.
8
A
marking is aligned with the
A
marking. The tool may
Screwdriving operation (Fig. 9)
Place the point of the driver bit in the screw head and
apply pressure to the tool. Start the tool slowly and then
increase the speed gradually. Release the trigger as
soon as the clutch cuts in.
NOTE:
• Make sure that the driver bit is inserted straight in the
screw head, or the screw and/or bit may be damaged.
• When driving wood screws, predrill pilot holes to make
driving easier and to prevent splitting of the workpiece.
See the chart below.
Nominal diameter of
wood screw (mm)
3.1
3.5
3.8
4.5
4.8
5.1
5.5
5.8
6.1
• If the tool is operated continuously until the battery car-
tridge has discharged, allow the tool to rest for 15 min-
utes before proceeding with a fresh battery.
Drilling operation
First, turn the adjusting ring so that the pointer on the tool
A
body points to the marking. Then proceed as follows.
• Drilling in wood
When drilling in wood, best results are obtained with
wood drills equipped with a guide screw. The guide
screw makes drilling easier by pulling the bit into the
workpiece.
• Drilling in metal
To prevent the bit from slipping when starting a hole,
make an indentation with a centerpunch and hammer
at the point to be drilled. Place the point of the bit in the
indentation and start drilling. Use a cutting lubricant
when drilling metals. The exceptions are iron and brass
which should be drilled dry.
CAUTION:
• Pressing excessively on the tool will not speed up the
drilling. In fact, this excessive pressure will only serve
to damage the tip of your bit, decrease the tool perfor-
mance and shorten the service life of the tool.
• There is a tremendous force exerted on the tool/bit at
the time of hole breakthrough. Hold the tool firmly and
exert care when the bit begins to break through the
workpiece.
• A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back out.
However, the tool may back out abruptly if you do not
hold it firmly.
• Always secure small workpieces in a vise or similar
hold-down device.
• If the tool is operated continuously until the battery car-
tridge has discharged, allow the tool to rest for 15 min-
utes before proceeding with a fresh battery.
Recommended size of
pilot hole (mm)
2.0 – 2.2
2.2 – 2.5
2.5 – 2.8
2.9 – 3.2
3.1 – 3.4
3.3 – 3.6
3.7 – 3.9
4.0 – 4.2
4.2 – 4.4