DeWalt DW937 Manual De Instrucciones página 2

FIG. 1
LOCK-OFF BUTTON
BOUTON DE VERROUILLAGE
BOTÓN DE BLOQUEO EN OFF
(APAGADO)
TRIGGER SWITCH
GÂCHETTE
CONMUTADOR TIPO
GATILLO
Recommended Minimum Wire Size for Extension Cords
Total Length of Cord
25 ft. 50 ft. 75 ft. 100 ft. 125 ft.
7.6 m 15.2 m 22.9 m 30.5 m 38.1 m
Wire Size AWG
18 18 16 16
• 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 charg-
er in a position away from any heat source. The charger is ventilated through slots in the
top and the bottom of the housing.
• 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.
• Disconnect the charger from the outlet before attempting any cleaning. This will
reduce the risk of electric shock. 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 power (120
Volts). Do not attempt to use it on any other voltage. This does not apply to the
vehicular charger.
Using Automatic Tune-Up™ Mode
The Automatic Tune-Up™ Mode equalizes or balances the individual cells in the battery pack
allowing it to function at peak capacity. Battery packs should be tuned up weekly or after 10
charge/discharge cycles or whenever the pack no longer delivers the same amount of work.
To use the Automatic Tune-Up™, place the battery pack in the charger and leave it for at least
8 hours. The charger will cycle through the following modes.
1. The red light will blink continuously indicating that the 1-hour charge cycle has started.
2. When the 1-hour charge cycle is complete, the light will stay on continuously and will no
longer blink. This indicates that the pack is fully charged and can be used at this time.
3. Whenever the pack is left in the charger after the initial 1-hour charge, the charger will
begin the Automatic Tune-Up™ Mode. This mode continues up to 8 hours or until the
individual cells in the battery pack are equalized. The battery pack is ready for use and can
be removed at any time during the Tune-Up™ Mode.
4. Once the Automatic Tune-Up™ Mode is complete the charger will transition to a main-
tenance charge; the indicator light shuts off when the Automatic Tune-Up™ Mode is
complete.
SAVE THESE INSTRUCTIONS FOR FUTURE USE
Chargers
Your tool uses a 7.2, 9.6, 12.0, 14.4,18.0 Volt D WALT charger. Your battery can be charged
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in D WALT 1 Hour Chargers, 15 Minute Chargers or Vehicular 12 Volt Charger. Be sure to
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read all safety instructions before using your charger. Consult the chart at the end of this man-
ual for compatibility of chargers and battery packs.
Charging Procedure
DANGER: Electrocution hazard. 120 volts are present at charging terminals. Do not probe
with conductive objects.
1. Plug the charger into an appropriate outlet as shown in Figure 2.
2. Insert the battery pack into the charger. The red (charging) light will blink continuously
indicating that the charging process has started.
3. The completion of charge will be indicated by the red light remaining ON continuously. The
pack is fully charged and may be used at this time or left in the charger.
Indicator Light Operation
Charge Indicators
Some chargers are designed to detect certain problems that can arise with battery packs.
Problems are indicated by the red light flashing at a fast rate. If this occurs, re-insert battery
pack into the charger. If the problem persists, try a different battery pack to determine if the
charger is OK. If the new pack charges correctly, then the original pack is defective and
should be returned to a service center or other collection site for recycling. If the new bat-
tery pack elicits the same trouble indication as the original, have the charger tested at an
authorized service center.
HOT/COLD PACK DELAY
Some chargers have a Hot/Cold Pack Delay feature: when the charger detects a battery that
is hot, it automatically starts a Hot Pack Delay, suspending charging until the battery has
cooled. After the battery has cooled, the charger automatically switches to the Pack Charging
mode. This feature ensures maximum battery life. The red light flashes long, then short while
in the Hot Pack Delay mode.
PROBLEM POWER LINE
Some chargers have a Problem Power Line indicator. When the charger is used with some
portable power sources such as generators or sources that convert DC to AC, the charger may
temporarily suspend operation, flashing the red light with two fast blinks followed by a
pause. This indicates the power source is out of limits.
LEAVING THE BATTERY PACK IN THE CHARGER
The charger and battery pack can be left connected with the red light glowing indefinitely. The
charger will keep the battery pack fresh and fully charged.
NOTE: A battery pack will slowly lose its charge when kept out of the charger. If the battery
pack has not been kept on maintenance charge, it may need to be recharged before use. A
battery pack may also slowly lose its charge if left in a charger that is not plugged into an
appropriate AC source.
WEAK BATTERY PACKS: Chargers can also detect a weak battery. Such batteries are still
usable but should not be expected to perform as much work. In such cases, about 10 seconds
after battery insertion, the charger will beep rapidly 8 times to indicate a weak battery condi-
tion. The charger will then go on to charge the battery to the highest capacity possible.
Important Charging Notes
1. Longest life and best performance can be obtained if the battery pack is charged when the
air temperature is between 65°F and 75°F (18°- 24°C). DO NOT charge the battery pack
in an air temperature below +40°F (+4.5°C), or above +105°F (+40.5°C). This is important
and will prevent serious damage to the battery pack.
2. The charger and battery pack may become warm to touch while charging. This is a nor-
mal condition, and does not indicate a problem. To facilitate the cooling of the battery pack
after use, avoid placing the charger or battery pack in a warm environment such as in a
metal shed, or an uninsulated trailer.
3. If the battery pack does not charge properly:
a. Check current at receptacle by plugging in a lamp or other appliance
b. Check to see if receptacle is connected to a light switch which turns power off when you
turn out the lights.
c. Move charger and battery pack to a location where the surrounding air temperature is
approximately 65°F - 75°F (18°- 24°C).
d. If charging problems persist, take the tool, battery pack and charger to your local
service center.
4. The battery pack should be recharged when it fails to produce sufficient power on jobs
which were easily done previously. DO NOT CONTINUE to use under these conditions.
HAND GRIP FIG. 2
POIGNÉE
EMPUÑADURA
SHOE
FIG. 4
PATIN
BASE METÁLICA
150 ft. 175 ft.
45.7 m 53.3 m
14 14 12
FIG. 8
FIG. 10
FIG. 12
Follow the charging procedure. You may also charge a partially used pack whenever you
desire with no adverse affect on the battery pack.
5. Under certain conditions, with the charger plugged into the power supply, the exposed
charging contacts inside the charger can be shorted by foreign material. Foreign materials
of a conductive nature such as, but not limited to, steel wool, aluminum foil, or any buildup
of metallic particles should be kept away from charger cavities. Always unplug the charg-
er from the power supply when there is no battery pack in the cavity. Unplug charger before
attempting to clean.
6. Do not freeze or immerse charger in water or any other liquid.
WARNING: Shock hazard. Do not allow any liquid to get inside charger.
CAUTION: Never attempt to open the battery pack for any reason. If the plastic housing of
the battery pack breaks or cracks, return to a service center for recycling.
Motor
Your D
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with the nameplate markings.
Voltage decrease of more than 10% will cause loss of power and overheating. All D
tools are factory tested; if this tool does not operate, check your battery pack.
OPERATION
Switch (Variable Speed) (Fig. 3)
LOCK-OFF BUTTON AND TRIGGER SWITCH
Your saw is equipped with a lock-off button (B).
To lock the trigger switch, press the lock-off button as shown in Figure 3. Always lock the
trigger switch (A) when carrying or storing the tool to eliminate unintentional starting. The lock-
off button is colored red to indicate when the switch is in its unlocked position.
To unlock the trigger switch, press the lock-off button as shown in Figure 3. Pull the trigger
switch to turn the motor ON. Releasing the trigger switch turns the motor OFF.
NOTE: This tool has no provision to lock the switch in the ON position, and should never be
locked ON by any other means.
The variable speed trigger switch will give you added versatility. The further the trigger is
depressed the higher the speed of the saw.
CAUTION: Use of very slow speed is recommended only for beginning a cut. Prolonged use
at very slow speed may damage your saw.
FIG. 3
B
LOCKED
VERROUILLÉ
BLOQUEADO
FIG. 5
FIG. 7
FIG. 6
C
FIG. 9
FIG. 11
ROCK TOOL UP TO NORMAL CUTTING
POSITION AFTER BLADE HAS CUT
THROUGH MATERIAL
PIVOTER L'OUTIL EN POSITION
NORMALE DE COUPE UNE FOIS
QUE LA LAME A TRAVERSÉ
BALANCEE LA HERRAMIENTA HACIA
ARRIBA HASTA ALCANZAR LA
POSICIÓN NORMAL DE CORTE
LUEGO DE QUE LA HOJA
ATRAVIESE EL MATERIAL
STARTING POSITION FOR POCKET CUTTING
POSITION DE DÉPART POUR COUPE INTERNE
POSICIÓN INICIAL PARA CORTES CENTRALES
FIG. 13
WALT tool is powered by a D WALT-built motor. Be sure your power supply agrees
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UNLOCKED
DÉVERROUILLÉ
DESBLOQUEADO
A
LE MATÉRIAU.
WALT
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