Hitachi Koki USA DH 20DV manual English, General Operational Precautions

English

GENERAL OPERATIONAL PRECAUTIONS

1.Keep work area clean. Cluttered areas and benches invite accidents.

2.Avoid dangerous environment. Don’t expose power tools and charger to rain. Don’t use power tools and charger in damp or wet locations. And keep work area well lit.

Never use power tools and charger near flammable or explosive materials.

Do not use tool and charger in presence of flammable liquids or gases.

3.Keep children away. All visitors should be kept safe distance from work area.

4.Store idle tools and charger. When not in use, tools and charger should be stored in dry, high or locked-up place – out of reach of children. Store tools and charger in a place where the temperature is less than 40°C.

5.Don’t force tool. It will do the job better and safer at the rate for which it was designed.

6.Use right tool. Don’t force small tool or attachment to do the job of a heavy duty tool.

7.Wear proper apparel. No loose clothing or jewelry to get caught in moving parts. Rubber gloves and footwear are recommended when working outdoor.

8.Use safety glasses with most tools. Also face or dust mask if cutting operation is dusty.

9.Don’t abuse cord. Never carry charger by cord or yank it to disconnect from receptacle. Keep cord from heat, oil and sharp edges.

10.Secure work. Use clamps or a vise to hold work. It’s safer than using your hand and it frees both hands to operate tool.

11.Don’t overreach. Keep proper footing and balance at all times.

12.Maintain tools with care. Keep tools sharp at all times, and clean for best and safest performance. Follow instructions for lubricating and changing accessories.

13.When the charger is not in use, or when being maintained and inspected, disconnect the power cord of the charger from the receptacle.

14.Remove chuck wrenches and wrenches. Form habit of checking to see that wrenches are removed from tool before turning it on.

15.Avoid accidental starting. Don’t carry tool with finger on switch.

16.Always use the specified charger.

Never use a charger other than that specified to prevent danger.

17.Use only genuine HITACHI replacement parts.

18.Do not use power tools for applications other than those specified in the Handling Instructions.

19.To ensure the designed operational integrity of power tools and charger, do not remove installed covers or screws.

20.Consult an authorized Service Center in the event of power tool and charger failure.

21.Always use the charger at the voltage specified on the name plate.

22.Do not touch movable parts or accessories unless the battery has been removed.

23.Always charge the battery before use.

24.Never use a battery other than that specified. Do not connect a usual dry cell, a rechargeable battery

other than that specified or a car battery to the power tool.

25.Do not use any transformer that has a booster.

26.Do not charge the battery from an engine electric generator or DC power supply.

27.Always charge indoors. As the charger and battery heat-up slightly during charging, charge the battery in a place not exposed to direct sunlight; which has low humidity and is well ventilated.

28.When working in a high place, pay attention to activities below. Before commencing, ensure that there are no people below.

PRECAUTIONS FOR CORDLESS HAMMER DRILL

1.These chargers utilize a special charging control system due to the fact that the high charging speed. Therefore, always charge the battery at a temperature of 0–40°C for UC 24YF. A lower temperature than these specified ranges will result in overcharging which will shorten the battery life. The battery cannot be charged at a temperature higher than 40°C. The most suitable temperature for charging is that of 20–25°C.

2.Do not use the charger continuously.

When one charging is completed, leave the charger for about 15 minutes before the next charging of battery.

3.Do not allow foreign matter to enter the hole for connecting the rechargeable battery.

4.Never disassemble the rechargeable battery and charger.

5.Never short-circuit the rechargeable battery. Short- chircuiting the battery will cause a great electric current and overheat. It results in burn or damage to the battery.

6.Do not dispose of the battery in fire. If the battery is burnt, it may explode.

7.When using this unit continuously, the unit may overheat, leading to damage in the motor and switch. Please leave it without using it for approximately 15 minutes.

8.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.

9.Using an exhausted battery will damage the charger.

10.When drilling in wall, floor or ceiling, check for buried electric power cord, etc.

11.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.

12.Wear earplugs to protect your ears during operation.

13.Do not touch the bit during or immediately after operation. The bit becomes very hot during operation and could cause serious burns.

14.Always hold the body handle and side handle of the power tool firmly. Otherwise the counterforce produced may result in inaccurate and even dangerous operation.

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