UC 12YF - Battery charger HITACHI - Free user manual and instructions

USER MANUAL UC 12YF HITACHI

15. 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.

16. Do not use a transformer containing a booster.

17. Do not charge the battery from an engine electric

generator or DC power supply.

18. Always charge indoors. Because the charger and

battery heat slightly during charging, charge the battery in a place not exposed to direct sunlight; where the humidity is low and the ventilation good.

19. Use the exploded assembly drawing on this

handling instructions only for authorized servicing.

PRECAUTIONS FOR CHARGER

1. Always charge the battery at an ambient

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.

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 or

5. 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.

6. Do not dispose of the battery in fire.

If the battery is burnt, it may explode.

7. Using an exhausted battery will damage the

8. 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.

9. Do not insert objects into the air ventilation slots

of the charger. Inserting metal objects or flammable into the charger air ventilation slots will result in an electrical shock hazard or damage to the charger.

GENERAL OPERATIONAL PRECAUTIONS

1. Keep work area clean. Cluttered areas and benches

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 or children. Store tools and charger in a place in which the temperature is less than 40°C.

5. Don’t abuse cord. Never carry charger by cord or

yank it to disconnect from receptacle. Keep cord from heat, oil and sharp edges.

6. When the charger is not in use or when being

maintained and inspected, disconnect the power cord of the charger from the receptacle.

8. Use only genuine HITACHI replacement parts.

9. Do not use power tools and charge for applications

other than those specified in the Handling Instructions.

10. To avoid personal injury, use only the accessories

or attachment recommended in these handling instructions or in the HITACHI catalog.

11. If the supply cord of this charger is damaged, the

charger must be returned to the HITACHI authorized service center for the cord to be replaced. Let only the authorized service center do the repairing. The Manufacture will not be responsible for any damages or injuries caused by repair by the unauthorized persons or by mishandling of the tool.

12. To ensure the designed operational integrity of

power tools and charger, do not remove installed covers or screws.

14. Always charge the battery before use.

Battery capacity (mAh) 1,300 mAh 1,700 mAh 2,000 mAh Battery voltage (V) NOTE: The recharging time may vary according to the ambient temperature and the power supply voltage. UC14YF

UC12YF CHARGING Before using the power tool, charge the battery as follows.

1. Connect the charger’s power cord to the receptacle.

When connecting the plug of the charger to a receptacle, the pilot lamp will blink in red. (At 1- second intervals).

2. Insert the battery into the charger.

Firmly insert the battery into the charger till it contacts the bottom of the charger and checking the polarities as shown in Fig. 1. CAUTION: 䡬 If the batteries are inserted in the reverse direction, not only recharging will become impossible, but it may also cause problems in the charger such as a deformed recharging terminal.

When inserting a battery in the charger, the pilot lamp will light up continuously in red. When the battery becomes fully recharged, the pilot lamp will blink in red. (At 1-second intervals.) (See Table 1) (1) Pilot lamp indication The indications of the pilot lamp will be as shown in Table 1, according to the condition of the charger or the rechargeable battery. (3) Regarding recharging time Table 3 shows the recharging time required according to the type of battery. Table 3 Recharging time (approx. min.) at 20°C Rechargeable batteries Temperatures at which the battery can be recharged EB7, EB9 EB12 -5°C ~ 40°C EB7G EB9G, EB9B, EB9M -5°C ~ 60°C EB12G, EB12B, EB12M EB14B (2) Regarding the temperature 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 2 Recharging of batteries that have become hot Table 1 Indications of the pilot lamp Before Blinks Lights for 0.5 seconds. Does not light charging for 0.5 seconds. (off for 0.5 seconds) Lights Lights continuously Blinks Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds) Flickers Lights for 0.1 seconds. Does not light for 0.1 seconds. (off for 0.1 seconds) ■■■■■■■■■■■■■ Lights Lights continuously Charging impossible The pilot lamp lights in green. While charging Charging complete Charging impossible The battery tempera- ture is high, making recharging impossible. The pilot lamp lights or blinks in red. Malfunction in the battery or the charger5 English

4. Disconnect the charger’s power cord from the

5. Hold the charger firmly and pull out the battery.

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 䡬 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 used, the pilot lamp of the charger lights up green. In such a case, first let the battery cool, then start charging. 䡬 When the pilot lamp flickers in red (at 0.2-seconds 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. 䡬 Since the built-in micro computer takes about 3 seconds to confirm that the battery being charged with UC12YF/UC14YF 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.

MAINTENANCE AND INSPECTION

1. Inspecting the mounting screws:

Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard.

2. Cleaning of the charger

When the charger is stained, wipe with a soft dry cloth or a cloth moistened with soapy water. Do not use chloric solvents, gasoline or paint thinner, for they melt plastics.

3. Store idle charger

When not in use, the charger should be stored in dry, high or locked-up place — out of reach of children. NOTE Due to HITACHI’s continuing program of research and development, the specifications herein are subject to change without prior notice. IMPORTANT Correct connecting of the plug The wires of the mains lead are coloured in accordance with the following code: Blue: –Neutral Brown: –Live As the colours of the wires in the mains lead of this tool may not correspond with the coloured markings identifying the terminals in your plug proceed as follows: The wire coloured blue must be connected to the terminal marked with the letter N or coloured black. The wire coloured brown must be connected to the terminal marked with the letter L or coloured red. Neither core must be connected to the earth terminal. NOTE This requirement is provided according to BRITISH STANDARD 2769: 1984. Therefore, the letter code and colour code may not be applicable to other markets except United Kingdom.Deutsch

EC DECLARATION OF CONFORMITY

We declare under our sole responsibility that this product is in conformity with standards or standardized documents EN60335, EN55014, EN60555 and EN50082-1 in accordance with Council Directives 73/23/EEC and 89/ 336/EEC.