English
◯Since the
battery may not be properly charged.
〈UC18YG〉
Before using the driver drill, charge the battery as follows.
1.Connect the charger power cord to the receptacle Connecting the power cord will turn on the charger.
2.Insert the battery into the charger
Insert the battery firmly while observing its direction, until it contacts the bottom of the charger (the pilot lamp lights up) (See Fig. 4).
CAUTION
If the pilot lamp does not light up, pull out the power cord from the receptacle and check the
battery mounting condition.
(1)Regarding the temperatures of the rechargeable battery
The temperatures for rechargeable batteries are as shown in Table 4.
Table 4 Recharging ranges of batteries
|
|
| Temperatures at |
Rechargeable batteries | which the battery | ||
|
|
| can be recharged |
EB912S, | EB914S, | EB914, |
|
EB9B, EB1212S, EB1214S, | 0°C – 45°C | ||
EB1214L, EB1220BL |
| ||
|
|
|
|
(2)Regarding recharging time
Depending on the combination of the charger and batteries, the charging time will become as shown in Table 5.
Table 5 Charging time (At 20°C)
Battery |
| Charger | UC18YG | |
|
| |||
|
|
| ||
EB912S, | EB914S, | EB914, | Approx. 30 min. | |
EB1212S, EB1214S, EB1214L | ||||
| ||||
EB9B, EB1220BL |
| Approx. 50 min. | ||
|
|
|
| |
The pilot lamp goes off to indicate that the battery is fully charged.
The battery charging time becomes longer when a temperature is low or the voltage of the power source is too low.
When the pilot lamp does not go off even if more than 120 minutes have elapsed after starting of the charging, stop the charging and contact your HITACHI AUTHORIZED SERVICE CENTER.
CAUTION
If the battery is heated due to direct sunlight, etc., just after operation, the charger pilot lamp may not light up. At that time, cool the battery first, then start charging.
3.Disconnect the charger’s power cord from the receptacle
4.Hold the charger firmly and pull out the battery
NOTE
After charging, pull out batteries from the charger first, and then keep the batteries properly.
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.
PRIOR TO OPERATION
1.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. 5) 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. 6).
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 a dots. The tightening toque at position “1” is the weakest and the torque is strongest at the highest number (See Fig. 5).
9
