Bedienungsanleitung Hitachi WR9DM2 (Seite 13 von 130) (Englisch)

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(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 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:

⅜ 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

Temperatures at

Rechargeable batteries which the battery

can be recharged

EB1220BL, EB9B –5°C – 60°C

EB1226HL, EB1230HL, EB926H, EB930H

0°C – 45°C

used, the pilot lamp of the charger lights up green. In

such a case, first let the battery cool, then start

charging.

⅜ When the pilot lamp flikers 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 UC14YFA 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.

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. Installing the bit (WH12DM2, WH9DM2, WH12DMR)

Always follow the following procedure to install driver

bit. (Fig. 4)

(1) Pull the guide sleeve away from front of the tool.

(2) Insert the bit into the hexagonal hole in the anvil.

(3) Release the guide sleeve and it returns to its original

position.

CAUTION:

If the guide sleeve does not return to its original

position, then the bit is not installed properly.

4. Selecting the socket matched to the bolt

(WR12DM2, WR9DM2)

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.

A worn or deformed hex. or square-holed socket will

not give an adequate tightness for fitting to the nut or

anvil, consequently resulting in loss of tightening

torque.

Pay attention to wear of socket hole, and replace

before further wear has developed.

Finally, install the socket prescribed in Item 5. The

section on “Optional Accessories” details the

relationship between bolt sizes and sockets. Sockets

are named according to the dihedral width of the

hexagonal hole.

5. Installing a socket (WR12DM2, WR9DM2)

Select the socket to be used.

ⅷ Pin, O-ring type (Fig. 5 and 6)

(1) Align the hole in the socket with the hole in the anvil

and insert the anvil into the socket.

(2) Insert the pin into the socket.

(3) Attach the ring to the groove on the socket.

ⅷ Plunger type (Fig. 7)

Align the plunger located in the square part of the

anvil with the hole in the hex. socket. Then push the

plunger, and mount the hex. socket on the anvil.

Check that the plunger is fully engaged in the hole.

When removing the socket, reverse the sequence.

Charger

UC14YFA

Battery

EB1220BL, EB9B

Approx. 50 min.

EB1226HL, EB926H

Approx. 65 min.

EB1230HL, EB930H

Approx. 70 min.

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