DeWalt DW937 Manual De Instrucciones página 7

382815-01/DW937 5/8/02 9:21 AM
• Make sure cord is located so that it will not be stepped on, tripped
over, or otherwise subjected to damage or stress.
• An extension cord should not be used unless absolutely necessary.
Use of improper extension cord could result in risk of fire, electric
shock, or electrocution.
• 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. When using more than one extension to make up the
total length, be sure each individual extension contains at least the
minimum wire size.
Recommended Minimum AWG Size for Extension Cords
Total Extension Cord Length (feet)
25 50 75
Wire Gauge
18 18 16
• The charger is ventilated through slots in the top and the bottom of the
housing. Do not place any object on top of charger or place the charger
on a soft surface that might block the ventilation slots and result in
excessive internal heat. Place the charger in a position away from any
heat source.
• Do not operate charger with damaged cord or plug — have them
replaced immediately.
• Do not operate charger if it has received a sharp blow, been dropped,
or otherwise damaged in any way; take it to an authorized service
center.
• Do not disassemble charger; take it to an authorized service center
when service or repair is required. Incorrect reassembly may result in a
risk of electric shock, electrocution or fire.
• To reduce risk of electric shock, unplug charger from outlet before
attempting any cleaning. Removing the battery pack will not reduce
this risk.
• NEVER attempt to connect 2 chargers together.
• The charger is designed to operate on standard household electrical
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100 125 150 175
16 14 14 12
power (120 Volts AC). Do not attempt to use it on any other voltage!
This does not apply to vehiculat charger.
Chargers
Your battery can be charged in D
Minute Chargers or Vehicular 12 volt charger. Be sure to read all
safety instructions before using your charger.
Consult chart on back cover for compatibility of chargers and
battery packs.
Using Tune-Up™ Mode
The Tune-up™ mode will equalize or balance the individual cells in
the battery pack at its peak capacity. This cycle takes up to 8 hours
to complete. Battery packs should be tuned up weekly or after 10 to
20 charge/discharge cycles or whenever the pack no longer delivers
the same amount of work.
1. To tune up your battery pack, place the battery in the charger as
usual. The red light will blink continuously indicating that the
charge cycle has started.
2. The Tune-up™ Button may be pressed at any time after the
charge has started. The red light will stop blinking momentarily,
blink quickly 3 times, and then resume blinking continuously. The
charger is now giving your batteries a tune-up.
3. When the charge cycle has completed, the light will stay on
continuously. The pack is fully charged and may be used at this
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FIG. 1
WALT 1 Hour Chargers, 15
E