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(2) Regarding the temperatures of the rechargeable
battery
The temperatures for rechargeable batteries are as
shown in Table 2, and batteries that have become
hot should be cooled for a while before being
recharged.
Table 2 Recharging ranges of batteries
(3) Regarding recharging time
Depending on the combination of the charger and
batteries, the charging time will become as shown in
Table 3.
Table 3 Charging time (At 20°C)
NOTE
The recharging time may vary according to the
ambient temperature and power source voltage.
4. Disconnect the charger’s power cord from the
receptacle.
5. Hold the charger firmly and pull out the battery
NOTE
Be sure to pull out the battery from the charger after
use, and then keep it.
Regarding electric discharge in case of new
batteries, etc.
As the internal chemical substance of new batteries
and batteries that have not been used for an extended
period is not activated, the electric discharge might
be low when using them the first and second time.
This is a temporary phenomenon, and normal time
required for recharging will be restored by recharging
the batteries 2 – 3 times.
How to make the batteries perform longer
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery life will be shortened. Leave the battery
and recharge it after it has cooled for a while.
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 for 1 second,
does not light for 0.5 seconds (off for 0.5 seconds). In
such a case, first let the battery cool, then start
charging.
When the pilot lamp flickers (at 0.2-second 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 confirm that the battery being charged
with UC18YKSL/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.
PRIOR TO OPERATION
Setting up and checking the work environment
Check if the work environment is suitable by following
the precautions.
HOW TO USE
1. Confirm the clutch dial position (See Fig. 4)
The tightening torque of this unit can be adjusted
according to the clutch dial position, at which the
clutch dial is set.
(1) When using this unit as a screwdriver, line up the one
of the numbers “1, 3, 5 ... 22” on the clutch dial, or
the dots, with the triangle mark on the outer body.
(2) When using this unit as a drill, align the clutch dial drill
mark “
” with the triangle mark on the outer body.
CAUTION
The clutch dial cannot be set between the numerals
“1, 3, 5 ... 22” or the dots.
Do not use with the clutch dial
numeral between
“22” and the line at the middle of the drill mark.
Doing so may cause damage. (See Fig. 5)
2. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diameter. When too strong torque is
used, the screw head may be broken or be injured.
Be sure to adjust the clutch dial position according to
the screw diameter.
(2) Tightening torque indication
The tightening torque differs depending on the type
of screw and the material being tightened.
The unit indicates the tightening torque with the
numbers “1, 3, 5 ... 22” on the clutch dial , and the
dots. The tightening toque at position “1” is the
weakest and the torque is strongest at the highest
number. (See Fig. 4)
(3) Adjusting the tightening torque
Rotate the clutch dial and line up the numbers “1, 3,
5, ... 22” on the clutch dial, or the dots, with the
triangle mark on the outer body. Adjust the clutch
dial in the weak or the strong torque direction
according to the torque you need.
Temperatures at
Rechargeable batteries
which the battery
can be recharged
BSL1425, BSL1415
0°C – 50°C
BSL1825, BSL1815
Charger
UC18YKSL
UC18YFSL
Battery
BSL1415, BSL1815
Approx.
Approx.
40 min.
22 min.
BSL1425, BSL1825
Approx.
Approx.
75 min.
35 min.
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