English
(2) Regarding the tem peratures of the rechargeable
battery
The tem peratures for rechargeable batteries are as
show n in Table 2, and batteries that have becom e
hot should be cooled for a w hile before being
recharged.
Table 2 Recharging ranges of batteries
Rechargeable batteries
BSL1425, BSL1415
BSL1825, BSL1815
(3) Regarding recharging tim e
Depending on the com bination of the charger and
batteries, the charging tim e w ill becom e as show n in
Table 3.
Table 3 Charging tim e (At 20°C)
Charger
UC18YKSL
Battery
BSL1415, BSL1815
BSL1425, BSL1825
NOTE
The recharging tim e m ay vary according to the
am bient tem perature and pow er source voltage.
4. Disconnect the charger's pow er 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 elect ric discharge in case of new
batteries, etc.
As the internal chem ical substance of new batteries
and batteries that have not been used for an extended
period is not activated, the electric discharge m ight
be low w hen using them the first and second tim e.
This is a tem porary phenom enon, and norm al tim e
required for recharging w ill be restored by recharging
the batteries 2 – 3 tim es.
How to make the batteries perform longer
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the pow er of the tool becom es
w eaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery m ay be dam aged and its life w ill
becom e shorter.
(2) Avoid recharging at high tem peratures.
A rechargeable battery w ill be hot im m ediately after
use. If such a battery is recharged im m ediately after
use, its internal chem ical substance w ill deteriorate,
and the battery life will be shortened. Leave the battery
and recharge it after it has cooled for a w hile.
10
Tem peratures at
w hich the battery
can be recharged
0°C – 50°C
UC18YFSL
Approx.
Approx.
40 m in.
22 m in.
Approx.
Approx.
75 m in.
35 m in.
CAUTION
If the battery is charged w hile it is heated because it
has been left for a long tim e in a location subject to
direct sunlight or because the battery has just been
used, the pilot lam p 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 lam p 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
m alfunctioning. Take it to your authorized Service
Center.
Since the built-in m icro com puter takes about 3
seconds to confirm that the battery being charged
w ith UC18YKSL/UC18YFSL is taken out, w ait for a
m inim um of 3 seconds before reinserting it to
continue charging. If the battery is reinserted w ithin
3 seconds, the battery m ay not be properly charged.
PRIOR TO OPERATION
Setting up and checking the w ork environment
Check if the w ork environm ent is suitable by follow ing
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 w hich the
clutch dial is set.
(1) When using this unit as a screw driver, line up the one
of the num bers " 1, 3, 5 ... 22" on the clutch dial, or
the dots, w ith the triangle m ark on the outer body.
(2) When using this unit as a drill, align the clutch dial drill
m ark "
" w ith the triangle m ark on the outer body.
CAUTION
The clutch dial cannot be set betw een the num erals
" 1, 3, 5 ... 22" or the dots.
Do not use w ith the clutch dial num eral betw een
" 22" and the line at the m iddle of the drill m ark.
Doing so m ay cause dam age. (See Fig. 5)
2. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diam eter. When too strong torque is
used, the screw head m ay be broken or be injured.
Be sure to adjust the clutch dial position according to
the screw diam eter.
(2) Tightening torque indication
The tightening torque differs depending on the type
of screw and the m aterial being tightened.
The unit indicates the tightening torque w ith the
num bers " 1, 3, 5 ... 22" on the clutch dial , and the
dots. The tightening toque at position " 1" is the
w eakest and the torque is strongest at the highest
num ber. (See Fig. 4)
(3) Adjusting the tightening torque
Rotate the clutch dial and line up the num bers " 1, 3,
5, ... 22" on the clutch dial, or the dots, w ith the
triangle m ark on the outer body. Adjust the clutch
dial in the w eak or the strong torque direction
according to the torque you need.