Idiomas disponibles
Idiomas disponibles
• 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 vehic-
ular 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 mainte-
nance 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 12.0, 14.4, or 18.0 Volt D
WALT Charger. Your battery can be charged in
E
D
WALT 1 Hour Chargers, 15 Minute Chargers or Vehicular 12 volt charger. Be sure to read all
E
safety instructions before using your charger. Consult the chart on the back cover of this manual
for compatibility of chargers and battery packs.
Charging Procedure (Fig. 1)
DANGER: 120 volts are present at charging terminals. Do not probe with conductive objects.
Electric shock or electrocution may result.
1. Plug the charger into an appropriate outlet before inserting battery pack.
2. Insert the battery pack into the charger, as shown in Figure 1, making sure the pack is fully
seated in 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 battery 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. 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 charger
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: Don't allow any liquid to get inside charger. Electric shock may result.
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.
Variable Speed Switch
To turn the tool "ON", squeeze the trigger switch. To turn the tool "OFF" release the trigger. Your
tool is equipped with a variable speed switch which enables you to select the best speed for
a particular application. The farther you squeeze the trigger, the faster the tool will operate. Use
lower speeds for cutting tight curves or following precise guideline. Higher speeds are better for
gradual curves and straight line cuts. For maximum tool life, use lower speeds only for short peri-
ods of time.
On/Lock-Off Control Button
An On/Lock control button serves as a "lock-off" button. To select the ON position, release the
trigger switch and depress the control button on the right side of the tool, as shown in Figure 3.
To select Locked/Off, depress the control button on the left side of the tool. The center position
of the control button locks the tool in the OFF position. When changing the position of the con-
trol button, be sure the trigger is released.
Installing and Removing the Battery Pack
NOTE: Make sure your battery pack is fully charged.
CAUTION: Lock trigger switch before removing or installing battery.
To install the battery pack into the tool handle, align the base of the tool with the notch inside
the tool's handle and slide the battery pack firmly into the handle until you hear the lock snap
into place (Fig. 2).
To remove the battery pack from the tool, press the release buttons (A) and firmly pull the bat-
tery pack out of the tool handle. Insert it into the charger as described in the charger manual.
OPERATION
For accurate work, always clamp or anchor the material to be cut. Line up one edge of the tool's
middle blade with the cutting line and advance blades into the material without forced effort or
unnecessary pressure. A little practice will enable you to determine what forward pressure gives
you the smoothest cutting. It is important to keep the lower surfaces of the side blades flat on
the material being cut (Figure 7). When cutting curves, do not tilt the tool; keep the side blades
flat and level.The head of the shear will swivel to afford better access to the material. For best
cutting efficiency, keep blades sharp. Wear gloves when handling sheet metal. The edges are
sharp and can cause injury.
SWIVEL SHEAR HEAD
DW940, DW941
TÊTE PIVOTANTE
CABEZA DE CIZALLA GIRATORIA
ON/LOCK-OFF BUTTON
BOUTON EN MARCHE OU
VERROUILLÉ/ARRÊT
BOTÓN DE SEGURO
TRIGGER SWITCH
INTERRUPTEUR À DÉTENTE
INTERRUPTOR DE GATILLO
BATTERY PACK
ENSEMBLE DE PILES
BATERÍA
DC490
SWIVEL SHEAR HEAD
TÊTE PIVOTANTE
CABEZA DE CIZALLA GIRATORIA
TRIGGER SWITCH
INTERRUPTEUR À DÉTENTE
INTERRUPTOR DE GATILLO
BATTERY PACK
ENSEMBLE DE PILES
BATERÍA
FIG. 1
FIG.3
DW940, DW941
DC490
EN MARCHE
ENCENDIDO
FIG. 4
HOUSING
BOÎTIER
CARCAZA
ECCENTRIC BEARING ASSEMBLY
WASHER
ROULEMENT EXCENTRIQUE ÉQUIPÉ
RONDELLE
ROLDANA
FIG. 5
LEFT SIDE KNIFE
COUTEAU LATÉRAL GAUCHE
CUCHILLA LATERAL
IZQUIERDA
SPACER BUSHINGS
PALIERS DE CALES
LATERAL
BUJES ESPACIADORES
SIDE KNIFE AND SIDE
SPACER
COUTEAU LATÉRAL ET
CALE LATÉRAL
CUCHILLA LATERAL
Y ESPACIADOR
FIG. 7
CAUTION: Do not use the shear with any kind of accessory or attachment. Such usage
might be hazardous.
Disassembly and Assembly (Fig. 4, 5)
To remove shear head from motor, loosen 3 cap screws using the allen wrench provided.
Remove shear head by pulling head firmly forward. Slight twisting action may be required if head
does not slide off easily.
To remove cutter blades from shear head, remove 3 cap screws from shear housing. Be care-
ful not to lose rear spacer bushing when removing middle cap screw. Remove center blade from
housing by tapping blade gently towards the rear. Side knife and side spacer will now drop out
of the housing.
To remove eccentric bearing assembly from shaft, use an appropriate wrench to loosen
eccentric nut by turning counterclockwise.
To install eccentric bearing assembly onto shaft, make sure the large thin washer is first
inserted over shaft. Screw eccentric bearing assembly onto shaft and tighten with appropriate
wrench. Lubricate bearing with a good grade of bearing grease.
To install cutter blades into shear housing, place the side knife and side spacer into position
in the shear housing. Insert center cap screw through side knife and side spacer with rear spac-
er bushing between them. Start cap screw into thread just enough to hold blades in place. DO
NOT TIGHTEN. Insert spacer bushing into hole in center blade and lubricate. Install center blade
into shear housing by tapping blade gently forward using a drift pin to line up hole in center blade
ALLEN WRENCH
CLÉ HEXAGONALE
LLAVE ALLEN
ON/LOCK-OFF BUTTON
BOUTON EN MARCHE OU
VERROUILLÉ/ARRÊT
BOTÓN DE SEGURO
ALLEN WRENCH
CLÉ HEXAGONALE
LLAVE ALLEN
FIG. 2
A
ON
LOCKED
VERROUILLÉ
BLOQUEADO
ALLEN WRENCH
CLÉHEXAGONALE
LLAVE ALLEN
CAP SCREWS
VIS D'ASSEMBLAGE
TORNILLOS ALLEN
MONTAJE DEL BALERO
EXCÉNTRICO
FIG. 6
ALTERNATELY TIGHTEN TO SECURE
SERRER EN ALTERNANT AFIN DE
FIXER
APRIETE ALTERNATIVAMENTE PARA
ASEGURAR
