Hitachi WH 14DDL Handling Instructions Manual page 50

English
Table 4
State of lamp Battery Remaining Power
The battery remaining power
is enough.
The battery remaining power
is a half.
The battery remaining power
is nearly empty.
Re-charge the battery soonest possible.
As the remaining battery indicator shows somewhat
differently depending on ambient temperature and
battery characteristics, read it as a reference.
NOTE:
Do not give a strong shock to the switch panel or
break it.It may lead to a trouble.
5. How to use the LED light
By press the light selector switch on the switch panel,
the LED light mode changes as Table 5. It is indicated
by green lamp. (Fig. 10)
To prevent the battery power consumption, turn off
the LED light frequently.
Table 5
Always-ON
mode
Panel
display
Always ON
State (turn off after
2 minute)
Rotation speed
"Delicate work"
Tightening small
Use
diameter screws
(M6 or similar), etc.
7. Tightening and loosening screws
Install the bit that matches the screw, line up the bit in
the grooves of the head of the screw, then tighten it.
Push the impact driver just enough to keep the bit
fitting the head of the screw.
CAUTION
Applying the impact driver for too long tightens the
screw too much and can break it.
Tightening a screw with the impact driver at an angle
to that screw can damage the head of the screw and
the proper force will not be transmitted to the screw.
Tighten with this impact driver lined up straight with
the screw.
50
SW interlocked Always-OFF
mode mode
Light only Always OFF
SW-ON
Examples of tightening mode selector function settings
Low
900 min -1
"Light load work"
Affixing plasterboard
etc.
CAUTION
Do not expose directly your eye to the light by looking
into the light.
If your eye is continuously exposed to the light, your
eye will be hurt.
NOTE:
To prevent the battery power consumption caused
by forgetting to turn off the LED light, the light goes
off automatically in about 2 minutes.
6. Tightening mode selector function (Fig. 11)
CAUTION
Do not subject the switch panel to shock or damage.
Select tightening mode while the trigger switch is
released. Failure to do so could result in malfunction.
(1) Tightening mode selector switch
The rotation speed changes in 3 steps (900, 2200,
3000/3100 min
tightening mode selector switch is pressed.
S mode is suitable mode for tightening of self drilling
screw, it decrease failure of screw head breaking,
screw breaking, and screw idle running from
tightening too much screw.
NOTE:
The appropriate mode differs depending on the screw
and the material being screwed. Drive in a few test
screws and adjust the mode setting accordingly.
The tightening mode selector switch can only be set
after the battery has been installed in the driver and
the trigger switch has been pulled once.
Medium
2200 min -1
/3100 min
"Heavy load work"
Tightening long
screws, coach
screws, bolts, etc.
8. Tightening and loosening bolts
A hex. socket matching the bolt or nut must first be
selected. Then mount the socket on the anvil, and
grip the nut to be tightened with the hex. socket.
Holding the tool in line with the bolt, press the power
switch to impact the nut for several seconds.
If the nut is only loosely fitted to the bolt, the bolt
may turn with the nut, therefore mistaking proper
tightening. In this case, stop impact on the nut and
hold the bolt head with a wrench before restarting
impact, or manually tighten the bolt and nut to prevent
them slipping.
-1 ) and select "S mode" each time the
High
-1
3000 min
-1
/3100 min
Self drilling screw
tightening
S mode
-1
3000 min
-1