6
English
NOTE
The recharging time may vary according to the ambient
temperature and power source voltage.
<UC18YML2>
Especially, using a DC 12V in-car power source may
require longer recharging time at high temperatures.
CAUTION
When the battery charger has been continuously used,
the battery charger will be heated, thus constituting
the cause of the failures. Once the charging has been
completed, give 15 minutes rest until the next charging.
4. Disconnect the charger’s power cord from the
receptacle or cigarette lighter socket.
5. Hold the charger
fi
rmly and pull out the battery.
NOTE
Be sure to pull out the battery from the charger after use,
and then keep it.
CAUTION
○
If the battery is charged while it is heated because it has
been left for a long time in a location subject to direct
sunlight or because the battery has just been used,
the pilot lamp of the charger lights up green or lights
for 1 second, does not light for 0.5 seconds (o
ff
for
0.5 seconds). In such a case,
fi
rst let the battery cool,
then start charging.
○
When the pilot lamp
fl
ickers in red (at 0.2-seconds
intervals), check for and take out any foreign objects in
the charger’s battery connector. If there are no foreign
objects, it is probable that the battery or charger is
malfunctioning. Take it to your authorized Service
Center.
○
Since the built-in micro computer takes about 3
seconds to con
fi
rm that the battery being charged with
UC18YML2 / UC18YRSL / UC18YFSL is taken out,
wait for a minimum of 3 seconds before reinserting it to
continue charging. If the battery is reinserted within 3
seconds, the battery may not be properly charged.
○
Check the voltage of the in-car power source when
the pilot lamp
fl
ickers in green (every 0.2 seconds)
continuously. (UC18YML2)
If the voltage is 12V or lower, it indicates that the car
battery has weakened and cannot be charged.
○
If the pilot lamp does not blink in red (every second) even
though the charger cord or cigarette lighter connecting
plug is connected to the power, it indicates that the
protection circuit of the charger may be activated.
●
Regarding the temperatures and charging time of the battery.
The temperatures and charging time will become as shown in
Table 2
Table 2
Charger
Battery
UC18YRSL
UC18YFSL
UC18YML2
(AC/DC)*
1
Charging voltage
V
14.4V
-
18V
Weight
kg
0.6
0.5
0.7
Temperatures at which the battery can be
recharged
0
o
C – 50
o
C
Charging time for battery capacity, approx.
(At 20
o
C)
1.3Ah
1.5Ah
2.0Ah
2.5Ah
3.0Ah
4.0Ah
5.0Ah
Min.
Min.
Min.
Min.
Min.
Min.
Min.
20
22
30
35
45
60
75
20
22
30
35
45
60
75
20/50
22/60
30/80
35/100
45/120
60/160
75/200
Number of battery cells
4 – 10
*
1
AC power supply / DC 12V (in-car) power supply
Remove the cord or plug from the power and then
connect it again after 30 seconds or so. If this does
not cause the pilot lamp to blink in red (every second),
please take the charger to the Hitachi Authorized Service
Center.
MOUNTING AND OPERATION
Action
Figure
Page
Removing and inserting the
battery
1
170
Charging
2
170
Installing / Removing the side
handle
3
170
Tightening torque adjustment
4
170
Selecting the drill position
5
170
Selecting the impact position
6
170
Change rotation speed
7
171
Removing and mounting the hook
8
171
Remaining battery indicator
9
171
How to use the LED light
10
171
Mounting the bit
11
171
Reversing the rotational direction
12
171
Switch operation
13
172
Check and replacing the carbon
brush
14
172
Selecting accessories
―
173
MAINTENANCE AND INSPECTION
1. Inspecting the tool
Since use of as dull tool will degrade e
ffi
ciency and
cause possible motor malfunction, sharpen or replace
the tool as soon as abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
0000Book̲DS14DSDL.indb 6
0000Book̲DS14DSDL.indb 6
2014/10/09 16:34:58
2014/10/09 16:34:58
