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8. PRECAUTIONS IN SALES PROMOTION
8-1. Safety Instructions
In the interest of promoting the safest and most efficient use of the Models WH 14DSL and
WR 14DSL by all 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, and fully understands the meaning of 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 give pertinent advice to the customer. In particular, they must have a thorough understanding
of the precautions in the use of the cordless (battery charger type) electric power tools which are
different from those of ordinary electric power tools.
(1) Before use, ensure that the unit is fully charged.
New units are not fully charged. Even if the units were fully charged at the factory, long
periods without use, such as during shipping, cause the storage battery to lose its charge.
Customers must be instructed to fully charge the unit prior to use.
(2) When charging storage batteries, use only the exclusive Model UC 18YRSL charger provided
with the tool. Because of the designed rapid-charging feature, use of other battery chargers is
hazardous.
(3) Follow prescribed steps in using the charger.
First connect the storage battery to the charger, then plug the charger into an AC outlet
(ensuring that the voltage matches that indicated on the unit). If this order is reversed, the
charger may not function properly.
(4) Ensure the power source voltage is the same as that indicated on the Name Plate of the
charger. Use of any other power source (DC outlet, fuel powered generator, etc.) will cause
the charger to overheat and burn out.
(5) Do not use any voltage increasing equipment (transformer 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.
(6) Conduct battery charging at 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 at the indicated ambient temperature
range. At temperatures under 0
°
C (32
°
F), the thermostat will not function properly, and the
storage battery may be over-charged.
At temperatures over 40
°
C (104
°
F), the storage battery cannot be sufficiently charged. The
optimum temperature range is 20
°
C to 25
°
C (68
°
F to 77
°
F).
(7) The battery charger should not be used continuously.
At high ambient temperatures, if over three storage batteries are charged in succession, the
temperature of the coils on the transformer will rise and there is a chance that the temperature
fuse inserted in the interior of the transformer will inadvertently melt. After charging one
battery, please charge the next battery after about a fifteen-minute interval.
(8) 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
flammable objects, to be dropped or inserted into the air vents. This could cause electric
shock, fire or other serious hazards.
(9) Do not attempt to disassemble the storage battery or the charger.