Manual Hitachi WR8DH (page 9 of 54) (English, German, Dutch, French, Italian, Spanish)

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Table 3

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.

CAUTION

䡬 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.

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

second intervals), check for and take out any for-

eign 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.

䡬 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 charg-

ing. 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.

2. Checking the battery

Make sure that the battery is installed firmly. If it

is at all loose it could come off and cause an

accident.

3. Selecting the socket matched to the bolt

Be sure to use a socket which is matched to the

bolt to be tightened. Using an improper socket will

not only result in insufficient tightening but also in

damage to the socket or nut.

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 ex-

tended period is not activated, the electric dis-

charge might be low when using them the first and

second time. This is a temporary phenomenon, and

normal time required for recharging will be re-

stored by recharging the batteries 2 – 3 times.

How to make the batteries perform longer.

(1) Recharge the batteries before they become com-

pletely 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

䡬 If the battery is inserted in the reverse direction,

not only recharging will become impossible, but it

may also cause the fuse to blow, or problems in

the charger such as deformed recharging terminal.

3. Charging

When inserting a battery in the charger, charging

will commence and the pilot lamp will light con-

tinuously in red.

When the battery becomes fully recharged, the pilot

lamp will blink in red. (At 1-second intervals.) (See

Table 3)

䡬 Pilot lamp indication

The indications of the pilot lamp will be as shown

in Table 3, according to the condition of the charger

or the rechargeable battery.

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Hitachi WR8DH Manual

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