Bedienungsanleitung Hitachi WR 12 DMR (Seite 5 von 74) (Englisch)

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15. Using an exhausted battery will damage the

charger.

PRECAUTIONS FOR CORDLESS IMPACT

WRENCH

1. This is a portable tool for tightening and loosening

bolts and nuts. Use it only for these operation.

2. Use the earplugs if using for a long time.

3. One-hand operation is extremely dangerous; hold

the unit firmly with both hands when operating.

4. Check that the socket is not cracked or broken.

Broken or cracked sockets are dangerous. Check

the socket before using it.

5. Secure the socket with the socket pin and the ring.

If the socket pin or ring securing the socket is

damaged, the socket may come off from the impact

wrench, which is quite dangerous. Do not use

socket pins or rings that are deformed, worn out,

cracked, or in any other way damaged. Always

make sure to install the socket pin and ring in

the correct position.

6. Check the tightening torque.

The appropriate torque for tightening a bolt

depends on the material the bolt is made of, its

dimensions, grade, etc.

Also, the tightening torque generated by this

impact wrench depends on the materials and

dimensions of the bolt, how long the impact

wrench is applied for the way in which the socket

is installed, etc.

Also the torque when the battery has just been

charged and when it is about to run out are

slightly different. Use a torque wrench to check

that the bolt has been tightened with the

appropriate torque.

7. Stop the impact wrench before switching the

direction of rotation. Always release the switch

and wait for impact wrench to stop before

switching the direction of rotation.

8. Never touch the turning part.

Do not allow the turning socket section to get near

your hands or any other part of your body. You

could be cut or caught in the socket. Also, be

careful not to touch the socket after using

continuously it for a long time. It gets quite hot

and could burn you.

9. Never let the impact wrench turn without a load

when using the universal joint.

If the socket turns without being connected to a

load, the universal joint causes the socket to turn

wildly.

You could get hurt or the movement of the socket

could shake the impact wrench so much as to

make you drop it.

10. Always charge the battery at a temperature of 0

– 40°C.

A temperature of less than 0°C will result in over

charging which is dangerous. The battery cannot

be charged at a temperature greater than 40°C.

The most suitable temperature for charging is

that of 20 – 25°C.

11. Do not use the charger continuously.

When one charging is completed, leave the charger

for about 15 minutes before the next charging of

battery.

12. Do not allow foreign matter to enter the hole for

connecting the rechargeable battery.

13. Never disassemble the rechargeable battery and

charger.

14. Never short-circuit the rechargeable battery.

Short-circuiting the battery will cause a great

electric current and overheat. It results in burn

or damage to the battery.

15. Do not dispose of the battery in fire.

If the battery burnt, it may explode.

16. Do not insert object into the air ventilation slots

of the charger.

Inserting metal objects or inflammables into the

charger air ventilation slots will result in electrical

shock hazard or damaged charger.

17. Bring the battery to the shop from which it was

purchased as soon as the post-charging battery

life becomes too short for practical use. Do not

dispose of the exhausted battery.

18. Using an exhausted battery will damage the

charger.

SPECIFICATIONS

Cordless Impact Driver

Model WH9DMR WH12DMR WH14DMR WH18DMR

Voltage 9.6 V 12 V 14.4 V 18 V

No-Load speed 0 – 2600 min

-1

Capacity (Ordinary bolt)

M5-M12 M6-M14

Tightening torque

(Maximum)

105 N·m 130 N·m 140 N·m 150 N·m

Rechargeable

2.0 Ah EB9B: Ni-Cd EB1220BL: Ni-Cd EB14B: Ni-Cd EB1820L: Ni-Cd

2.6 Ah EB926H: Ni-MH EB1226HL: Ni-MH EB1426H: Ni-MH EB1826HL: Ni-MH

battery

3.0 Ah EB930H: Ni-MH EB1230HL: Ni-MH EB1430H: Ni-MH EB1830HL: Ni-MH

Weight 1.4 kg 1.6 kg 1.8 kg 2.0 kg

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