Precautions In Sales Promotion; Safety Instructions - Hitachi UC 18YRL Technical Data And Service Manual

6. PRECAUTIONS IN SALES PROMOTION

6-1. Safety Instructions

In the interest of promoting the safest and most efficient use of the Model UC 18YRL and UC 18YFL Chargers by
all of our customers, it is very important that at the time of sale the salesperson carefully ensures that the buyer
seriously recognizes the importance of the contents of the Handling Instructions.
6-1-1. Handling instructions
Salespersons must be thoroughly familiar with the contents of the Handling Instructions in order to give pertinent
advice to the customer.
(1) Connect the charger to an AC power outlet only.
Use of any other power source (DC outlet, fuel-powered generator, etc.) will cause the charger to overheat
and burn out.
(2) Do not use any voltage-increasing equipment (transformer, voltage regulator, etc.) between the power source
and the charger.
If the charger is used with voltage over and above that indicated on the unit, it will not function properly.
(3) Conduct battery charging in an ambient temperature range of 0ûC to 40ûC.
If charging is attempted when the ambient temperature is below 0ûC, charging is not possible or overcharging
occurs because the recharging control circuit does not function properly. If charging is attempted when the
ambient temperature is above 40ûC, charging is stopped before the battery is fully charged due to temperature
rise during charging because the difference between the upper limit of the rechargeable battery temperature
(Ni-Cd batteries: 60ûC, Ni-MH batteries: 55ûC, SUPER Ni-MH batteries: 50ûC, Li-ion batteries: 55ûC) and the
ambient temperature is small.
(4) Do not use the charger for successive charging.
In very hot locations, if two or more batteries are charged successively, the temperature of the charger will rise
excessively and might cause the charger to fail. Instruct the customer to wait at least 5 minutes before
commencing next charging. Particular care is necessary in summer or tropical countries when the power
source voltage is low.
(5) Do not insert foreign objects into the air vent on the charger.
The charger case is equipped with air vents to protect the internal electronic components from overheating.
Caution the customer not to allow foreign materials, such as metallic or inflammable objects, to be dropped or
inserted into the air vents. This could cause electrical shock, fire or other serious hazards.
(6) Do not attempt to disassemble the charger.
Incorrect parts replacement and/or wiring will cause malfunctions which could result in fire or other hazards.
Instruct the customer to bring the charger to an authorized service center in the event repair or replacement is
necessary.
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