Operation - Makita HP347D Instruction Manual

Speed change
► Fig.4: 1. Speed change lever
CAUTION:
Always set the speed change lever
fully to the correct position. If you operate the
tool with the speed change lever positioned halfway
between the "1" side and "2" side, the tool may be
damaged.
CAUTION:
Do not use the speed change lever
while the tool is running. The tool may be damaged.
Displayed Speed
Number
1 Low
2 High
To change the speed, first switch off the tool and then
slide the speed change lever to the "2" side for high
speed or, "1" 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.
Selecting the action mode
CAUTION:
Always set the ring correctly to
your desired mode mark. If you operate the tool
with the ring positioned halfway between the
mode marks, the tool may be damaged.
► Fig.5: 1. Action mode changing ring 2. Mark
3. Arrow
This tool has three action modes.
• Drilling mode (rotation only)
• Hammer drilling mode (rotation with
hammering)
• Screwdriving mode (rotation with clutch)
Select one mode suitable for your work. Turn the
action mode changing ring and align the mark that you
selected with the arrow on the tool body.
Adjusting the fastening torque
► Fig.6: 1. Action mode changing ring 2. Adjusting
ring 3. Graduation 4. Arrow
The fastening torque can be adjusted in 16 levels by
turning the adjusting ring. Align the graduations with the
arrow on the tool body. You can get the minimum fas-
tening torque at 1 and maximum torque at 16.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to deter-
mine which torque level is required for a particular
application.
Torque Applicable

operation

High Heavy load-
ing operation
Low Light loading
operation
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
Installing or removing driver bit/
drill bit
► Fig.7: 1. Sleeve
Turn the sleeve counterclockwise to open the chuck
jaws. Place the driver bit/drill bit in the chuck as far
as it will go. Turn the sleeve clockwise to tighten the
chuck. To remove the driver bit/drill bit, turn the sleeve
counterclockwise.
OPERATION
CAUTION:
Always insert the battery cartridge
all the way until it locks in place. If you can see the
red indicator on the upper side of the button, it is not
locked completely. Insert it fully until the red indicator
cannot be seen. If not, it may accidentally fall out of
the tool, causing injury to you or someone around
you.
CAUTION:
When the speed comes down
extremely, reduce the load or stop the tool to
avoid the tool damage.
Hold the tool firmly with one hand on the grip and the
other hand on the bottom of the battery cartridge to
control the twisting action.
► Fig.8
Screwdriving operation
CAUTION:
Adjust the adjusting ring to the
proper torque level for your work.
CAUTION:
Make sure that the driver bit is
inserted straight in the screw head, or the screw
and/or driver bit may be damaged.
First, turn the action mode changing ring so that the
arrow on the tool body points to the
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 switch trigger
as soon as the clutch cuts in.
NOTE: When driving wood screw, pre-drill a pilot hole
2/3 the diameter of the screw. It makes driving easier
and prevents splitting of the workpiece.
9 ENGLISH
marking.