Manual Hitachi WR9DM1 (page 11 of 98) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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Table 5

Indications of the lamps

Lights for 0.5 seconds. Does not light for

0.5 seconds. (off for 0.5 seconds)

Lights continuously

Lights for 0.5 seconds. Does not light for

0.5 seconds. (off for 0.5 seconds)

Lights for 0.1 seconds. Does not light for

0.1 seconds. (off for 0.1 seconds)

Lights continuously

Before

charging

While

charging

Charging

complete

Charging

impossible

Charging

impossible

Blinks

(RED)

Lights

(RED)

Blinks

(RED)

Flickers

(RED)

Lights

(GREEN)

Malfunction in the battery

or the charger

The battery temperature

is high, making recharg-

ing impossible.

(2) Regarding the temperatures of the rechargeable

battery.

The temperatures for rechargeable batteries are as

shown in the table below, and batteries that have

become hot should be cooled for a while before

being recharged.

Table 6 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 7.

Table 7 Charging time (At 20°C)

NOTE

The charging time may vary according to

temperature and power source voltage.

4. Disconnect the charger’s power cord from the

receptaele.

5. 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

Temperatures at

Rechargeable batteries which the battery

can be recharged

EB9B, EB1220BL –5°C – 60°C

EB930H, EB1230HL 0°C – 45°C

Charger

UC14YF2

Battery

EB9B, EB1220BL Approx. 60 min.

EB930H, EB1230HL Approx. 90 min.

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

⅜ If the battery has been heated right after operation

(or due to sunlight, etc.), the charger’s pilot lamp

may not light in red. In such a case, first let the

battery cool, then start charging.

⅜ When the pilot lamp flickers in red quickly (at 0.2-

second intervals), check for and take out any foreign

objects in the charger’s battery installation hole. If

there are no foreign objects, it is probable that the

battery or charger is malfunctioning. Take it to your

Authorized Service Center.

⅜ Since the built-in micro computer takes about 3

seconds to confirm that the battery being charged

with UC14YF2 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

1. Preparing and checking the work environment

Make sure that the work site meets all the conditions

laid forth in the precautions.

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Hitachi WR9DM1 Manual

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