Components (Fig. 1); Operation - DeWalt DC212 Instruction Manual

Important Safety Instructions for Battery Chargers
SAVE THESE INSTRUCTIONS: This manual contains important safety instructions for battery
chargers.
• Before using charger, read all instructions and cautionary markings on charger, battery pack,
and product using battery pack.
DANGER: Electrocution hazard. 120 volts are present at charging terminals. Do not probe with
conductive objects. Electric shock or electrocution may result.
WARNING: Shock hazard. Do not allow any liquid to get inside charger. Electric shock may
result.
CAUTION: Burn hazard. To reduce the risk of injury, charge only D
rechargeable batteries. Other types of batteries may burst causing personal injury and damage.
CAUTION: Under certain conditions, with the charger plugged in to 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.
• 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 D
able batteries. Any other uses may result in risk of fire, electric shock or electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when disconnecting charger. This will reduce risk of dam-
age to electric plug and cord.
• Make sure that cord is located so that it will not be stepped on, tripped over, or oth-
erwise subjected to damage or stress.
• Do not use an extension cord unless it is absolutely necessary. Use of improper exten-
sion 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.
• 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. 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.
SAVE THESE INSTRUCTIONS
FOR FUTURE USE
Chargers
Your tool uses an 18 or 24 Volt D WALT Charger. Your battery can be charged in D
E
1 Hour Chargers, 15 Minute Chargers or Vehicular 12 volt charger. Be sure to read all
safety instructions before using your charger. Consult the chart at the end of this manual for
compatibility of chargers and battery packs.
Charging Procedure
DANGER: Electrocution hazard. 120 volts present at charging terminals. Do not probe with
conductive objects. Danger of electric shock or electrocution.
1. Plug the charger into an appropriate outlet before inserting battery pack.
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.
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.
Fan Cooling (24 Volt Only)
The 24V charger is equipped with an internal fan that provides rapid cooling of D
battery packs. The fan operation is automatic and will turn on when required during battery
charging. This procedure is of great benefit for a pack that has finished a useable cycle. Place
the battery pack into the charger immediately after use so that the fan can cool the cells and
prolong the life of the battery pack.
WARNING: To minimize the risk of eye injury, always use eye protection. Fan may blow
debris from vent area at any time. Keep face and eyes away from area above vents.
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 ser-
vice 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 normal
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: Shock hazard. Do not 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.
Motor
Your D WALT tool is powered by a D
E E
the nameplate markings.
WALT nickel cadmium
E
WALT-built motor. Be sure your power supply agrees with
FIG. 1
DC212
WALT recharge-
E
G
DC222
DC223
H
FIG. 2
WALT
E
C
UNLOCKED,
FORWARD
DÉVERROUILLÉ,
MARCHE AVANT
DESTRABADO,
AVANCE
FIG. 4
J
WALT 24 Volt
E
K
A
Voltage decrease of more than 10% will cause loss of power and overheating. All D
are factory tested; if this tool does not operate, check your battery pack.

COMPONENTS (Fig. 1)

A. Side handle
B. Trigger switch
C. Forward/reverse control button (Lock-off button)
D. Mode selector
E. Main handle
Side Handle (Fig. 1)
CAUTION: Always operate the tool with the side handle (A) properly assembled. Hold
tool with both hands to maximize control.
The side handle clamps to the front barrel (collar) and may be rotated 360˚ to permit right-
or left-hand use. The side handle can be tightened by rotating the black plastic portion of the
side handle clockwise. The side handle must be tightened sufficiently to resist the twisting action
of the tool if the accessory binds or stalls. Be sure to grip the side handle at the far end to con-
trol the tool during a stall. To loosen side handle, rotate counterclockwise.
Switch (Fig. 1)
To turn the tool on, squeeze the trigger switch (B). To turn the tool off, release the trigger switch.
Your tool is equipped with a brake. The chuck will stop as soon as the trigger switch is fully
released.
VARIABLE SPEED SWITCH
The variable speed switch enables you to select the best speed for a particular application. The
farther you squeeze the trigger, the faster the tool will operate. For maximum tool life, use
variable speed only for starting holes or fasteners.
NOTE: Continuous use in variable speed range is not recommended. It may damage the switch
and should be avoided.
Mode Selector (Fig. 1)
CAUTION: Never change the mode while the unit is running.
For straight drilling, rotate the mode selector (D) until the arrow points to the drill bit symbol (F).
For rotary hammer, align the arrow with the hammer symbol (G). For chipping mode (DC223
only) align arrow with the chipping symbol (H).
NOTE: The mode selector (D) must be in drill, hammer or chipping (DC223 only) mode at all
times. There are no operable positions in between.
Forward/Reverse Control Button (Fig. 2)
A forward/reverse control button (C) determines the direction and also serves as a lock-off
button.
To select forward rotation, release the trigger switch (B) and depress the forward/reverse
control button on the right side of the tool.
To select reverse, depress the forward/reverse control button on the left side of the tool.
The center position of the control button locks the tool in the off position. When chang-
ing the position of the control button, be sure the trigger is released.
NOTE: The first time the tool is run after changing the direction of rotation, you may hear a click
on start up. This is normal and does not indicate a problem.

OPERATION

Installing and Removing the Battery Pack (Fig. 3)
NOTE: Make sure your battery pack is fully charged.
CAUTION: Make certain the switch lock-off button (C) is engaged to prevent switch actuation
before removing or installing battery.
To install the battery pack into the tool handle, align the notch (or rails) inside the tool's
handle with the battery pack and slide the battery pack firmly into the handle until you hear the
lock snap into place.
To remove the battery pack from the tool, press the release buttons (I) and firmly pull (or
slide) the battery pack out of the tool handle. Insert it into the charger as described in the
charger section of this manual.
NOTE: Operating temperature of this tool is 19˚ to 104˚ F (-7 to +40˚ C). Using the tool outside
of this temperature range will decrease the life of the tool.
Shocks – Active Vibration Control
For best vibration control, hold the tool with one hand on the main handle (E) and the other hand
on the side handle (A). Apply just enough pressure so the hammer is approximately mid-stroke.
The hammer only needs enough pressure to engage the internal active vibration control.
Applying too much pressure will not make the tool drill faster and active vibration control will not
engage.
SDS Chuck (Fig. 4)
WARNING: Turn off tool and remove battery pack from tool before changing accessories or
making any adjustments.
CAUTION: Do not use chipping bits in this tool. Using chipping bits may cause the tool to bind-
up and damage to the tool may occur.
To insert bit, insert shank of bit about 3/4" into chuck (J). Push and rotate bit until it locks in
place. The bit will be securely held.
To release bit, pull the sleeve (K) back and remove the bit.
D
F
A
F
D
G
A
F
G
FIG. 3
LOCKED UNLOCKED,
REVERSE
VERROUILLÉ
DÉVERROUILLÉ,
TRABADO
MARCHE
ARRIÈRE
DESTRABADO,
REVERSA
C
E
B
I
C
B
DC212
I
DC222
DC223
I
WALT tools
E
E
I
I