DeWalt DCD990 Instruction Manual page 7

• Before using the charger, read all instructions and cautionary •
markings on the charger, battery pack and product using the battery
pack.
i_ WARNING: Shock hazard. Do not allow any liquid to get inside the
charger. Electric shock may result. •
i_,CAUTION: Bum hazard. To reduce the risk of injury, charge only
DEWALT rechargeable battery packs. Other types of batteries may
overheat and burst resulting in personal injury and property damage.
NOTICE: Under certain conditions, with the charger plugged into the
power supply, the charger can be shorted by foreign material Foreign
materials of a conductive nature, such as, but not limited to, grinding
dust, metal chips, steel wool, aluminum foil or any buildup of metallic
particles should be kept away from the charger cavities. Always unplug
the charger from the power supply when there is no battery pack in the
cavity, Unplug the charger before attempting to clean.
• DO NOT attempt to charge the battery pack with any
chargers other than the ones in this manual The charger and
battery pack are specifically designed to work together.
• These chargers are not intended for any uses other than
charging DEWALT rechargeable batteries. Any other uses may
result in risk of fire, electric shock or electrocution.
• Do not expose the charger to rain or snow.
• Pull by the plug rather than the cord when disconnecting the
charger. This wil/ reduce the risk of damage to the electric plug and
cord.
• Make sure that the cord is located so that it will not be
stepped on, tripped over or otherwise subjected to damage
or stress.
• Do not use an extension cord unless it is absolutely •
necessary. Use of improper extension cord could result in risk of
fire, electric shock or electrocution.
When operating a charger outdoors, always provide a dry
location and use an extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces the risk of electric
shock.
An extension cord must have adequate wire size (AWG or
American Wire Gauge) for safety. The smaller the gauge number
of the wire, the greater the capacity of the cable, that is, 16 gauge
has more capacity than 18 gauge. An undersized cord will cause a
drop in line voltage resulting in loss of power and overheating. When
using more than one extension to make up the total length, be sure
each individual extension contains at least the minimum wire size.
The following table shows the correct size to use depending on cord
length and nameplate ampere rating. If in doubt, use the next heavier
gauge. The lower the gauge number, the heavier the cord.
Minimum Gauge for Cord Sets
Volts Total Length of Cord
in Feet (meters)
120V 25 50 100 150
Ampere Rating (7.6) (15.2) (30.5) (45.7)
240 V 50 100 200 300
(15.2) (30.5) (61.0) (91.4)
More
Than
AWG
Not
More
Than
6
10
12
16
0 18 16
6 18 16
10 16 16
12 14 12
Do not place any object on top of the charger or place the
charger on a soft surface that might block the ventilation
slots and result in excessive internal heat. Place the charger
16 14
14 12
14 12
Not Recommended