Hitachi DS10DFL Service Manual - Page 10

PRECAUTIONS ON SALES PROMOTION 1. Safety Instructions In the interest of promoting the safest and most efficient use of the Model DS 10DFL Cordless Driver Drill by all of our customers, it is very important when concluding a sale that the salesperson carefully ensure that the buyer seriously recognizes the importance of the Handling Instructions, and fully understands the precautions listed on the Caution Plate and Name Plate attached to each tool. A. Handling instructions Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to offer appropriate guidance to customers. In particular, salespersons must have a thorough understanding of the precautions on using cordless tools which differ from those on using ordinary electric power tools. (1) Before use, ensure that the battery is fully charged. A new battery is not fully charged. Even if the battery was fully charged at the factory, long periods of inactivity, such as during shipping, cause the storage battery to lose its charge. Customers must be instructed to fully recharge the battery prior to use. (2) When recharging the storage battery, only use the exclusive Model UC 10SFL Charger provided with the tool. Due to the designed rapid-charging feature (for full recharging in about 40 minutes), using other battery chargers is hazardous. (3) Connect the charger only to an AC power outlet. The use of any other power source (e.g., DC outlet, fuel-powered generator) will cause the charger to overheat and burn out. (4) Do not use any voltage-increasing equipment (e.g., transformer) between the power source and the charger. Using the charger at voltage higher than that indicated on the unit will result in malfunction. (5) Charge the battery in an ambient temperature range of 0°C to 40°C (32°F to 104°F). Special temperature-sensitive devices are employed in the charger to permit rapid charging. Ensure that customers are instructed to use the charger in the indicated ambient temperature range. At temperatures below 0°C (32°F), the thermostat will not function properly, and the storage battery may be overcharged. At temperatures above 40°C (104°F), the storage battery cannot be sufficiently recharged. The optimum temperature range is 20°C to 25°C (68°F to 77°F). (6) The battery charger should not be used continuously. Recharging more than three storage batteries in succession at high ambient temperature will cause the temperature of the coils on the transformer to rise and the temperature fuse inserted inside the transformer could inadvertently melt. After recharging one battery, please wait about 15 minutes before recharging the next battery. (7) Do not attempt to disassemble the storage battery or the charger. Special devices, such as a thermostat, are built into the storage battery and charger to permit rapid charging. Incorrect parts replacement and/or wiring will cause malfunctions that could result in fire or other hazards. Instruct customers to bring these units to an authorized service center in the event repair or replacement is necessary. -7-