Hitachi NR90GR Instruction Manual - Page 13

English 4. Disconnect battery charger from the receptacle. CAUTION Do not pull the plug out of the receptacle by pulling on the cord. Make sure to grasp the plug when removing from receptacle to avoid damaging cord. 5. Remove the battery from the battery charger. Supporting the battery charger with hand, pull out the battery from the battery charger. 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. ⅜ 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. ⅜ 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 ⅷ When the battery charger has been continuosly used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging. ⅷ If the battery is recharged when it is warm due to battery use or exposure to sunlight, the pilot lamp may not light. The battery will not be recharged. In such a case, let the battery cool before charging. ⅷ If the battery charger does not work while the battery is mounted correctly, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center. BEFORE OPERATION Read section titled "SAFETY" (pages 4 - 9). Make sure of the followings before operation. WORKING ENVIRONMENT WARNING 120°F MAX (50°C) ⅷ No flammable gas, liquid or other flammable objects at worksite. ⅷ Use outside or well- ventilated areas. Do not inhale. ⅷ Keep the Nailer, fuel cell and battery away from sunshine and from temperature exceeding 120°F (50°C). ⅷ Keep away from ignition sources. No smoking. ⅷ Clear the area of children or unauthorized personnel. COLD WEATHER CARE ⅜ Do not store the Nailer, fuel cell and battery in a cold weather environment. Keep the Nailer, fuel cell and battery in a warm area until beginning the work. ⅜ If the Nailer, fuel cell and battery are already cold, bring it in a warm area and allow the Nailer to warm up before use. Observe temperature limit of max. 120°F (50°C). Do not expose to an open flame and sparks! CAUTION ⅷ This Nailer may not drive completely below when; at low temperature fuel cell loose the required propellant force, at high temperature fuel cell overdose. ⅷ Do not use the Nailer in the rain or where excessive moisture is present. ⅷ This Nailer is not recommended for use at altitudes above 5,000 feet (1,500 m), or in temperature below 30°F (0°C). - 13 -