DeWalt DCD740B Cordless Drill User Manual

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 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 the charger with a damaged cord or plug.
Do not operate the 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 the 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 120V household electrical power. Do
not attempt to use it on any other voltage. This does not apply to the vehicular charger.
Your tool uses a DEWALT 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 (Fig. 2)
1. Plug the charger into an appropriate outlet before inserting the battery pack.
2. Insert the battery pack (I) into the charger, as shown in Figure 2, 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
This charger is designed to detect certain problems that can arise. Problems are indicated by the red
light flashing at a fast rate. If this occurs, re-insert the battery pack into the charger. If the problem
persists, try a different battery pack to determine if the charger is working properly. 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 and the battery pack tested at an authorized service center.
This charger has a hot/cold delay feature: when the charger detects a battery that is hot, it
automatically starts a 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/cold delay mode.
The charger and battery pack can be left connected with the charge indicator showing Pack
WEAK BATTERY PACKS: Weak batteries will continue to function but should not be expected
to perform as much work.
FAULTY BATTERY PACKS: This charger will not charge a faulty battery pack. The charger will
indicate faulty battery pack by refusing to light or by displaying problem pack or charger.
NOTE: This could also mean a problem with a charger.
Some chargers have a Problem Powerline 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.
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 the 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. A cold battery pack will charge at about half the rate of a warm battery pack. The battery
pack will charge at that slower rate throughout the entire charging cycle and will not return to
maximum charge rate even if the battery pack warms.
4. If the battery pack does not charge properly:
a. Check operation of 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 the 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
5. 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 effect on the battery pack.
6. 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 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.
7. Do not freeze or immerse the charger in water or any other liquid.
WARNING: Shock hazard. Don’t allow any liquid to get inside the charger. Electric shock may
WARNING: Burn hazard. Do not submerge the battery pack in any liquid or allow any liquid to
enter the battery pack. 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.
Storage Recommendations
1. The best storage place is one that is cool and dry, away from direct sunlight and excess heat
or cold.
2. For long storage, it is recommended to store a fully charged battery pack in a cool dry place
out of the charger for optimal results.
NOTE: Battery packs should not be stored completely depleted of charge. The battery pack will
need to be recharged before use.
Be sure your power supply agrees with the nameplate markings.
Voltage decrease of more than 10% will cause loss of power and overheating. All D
EWALT tools
are factory tested; if this tool does not operate, check your battery pack.
WARNING: Never modify the power tool or any part of it. Damage or personal injury could result.
A. Paddle switch G. Mounting screw
B. Forward/reverse control button H. Bit clip
C. Gear shifter I. Battery pack
D. Deep hex pocket J. Battery release button
E. Worklight K. Chuck with deep hex pocket
F. Belt hook
Variable Speed Paddle Switch (Fig. 1)
To turn the tool on, squeeze the paddle switch (A). To turn the tool off, release the paddle switch.
Your tool is equipped with a brake. The chuck will stop as soon as the paddle switch is fully
The variable speed switch enables you to select the best speed for a particular application. The
farther you squeeze the paddle, the faster the tool will operate. Use lower speeds for starting holes
without a centerpunch, drilling in metals or plastics, driving screws and drilling ceramics. Higher
speeds are better for drilling in wood, wood compositions and for using abrasive and polishing
accessories. 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.
Forward/Reverse Control Button (Fig. 1)
A forward/reverse control button (B) determines the direction of the tool and also serves as a lock
off button.
To select forward rotation, release the paddle switch 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.
NOTE: When the tool is not in use or being transported, keep the button in the middle lock
When changing the position of the control button, be sure the paddle 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.
Dual Range Gearing (Fig. 1)
The dual range feature of your drill/driver allows you to shift gears for greater versatility.
1. To select speed 1 (high torque setting), turn the tool off and permit it to stop. Slide the gear
shifter (C) forward (towards the chuck).
2. To select speed 2 (low torque setting), turn the tool off and permit it to stop. Slide the gear
shifter back (away from the chuck).
NOTE: Do not change gears when the tool is running. Always allow the drill to come to a complete
stop before changing gears. If you are having trouble changing gears, make sure that the dual range
gear shifter is either completely pushed forward or completely pushed back.
Worklight (Fig. 1)
There is a worklight (E) located between the chuck and the paddle switch (A). The worklight is
activated when the paddle switch is depressed, and will automatically turn off 20 seconds after
the trigger switch is released. If the trigger switch remains depressed, the worklight will remain on.
NOTE: The worklight is for lighting the immediate work surface and is not intended to be used as
a flashlight.
Keyless Chuck
WARNING: Do not attempt to tighten drill bits (or any other accessory) by gripping the chuck
and turning the tool on. Damage to the chuck and personal injury may result. Always lock off paddle
switch when changing accessories.
Your tool features a 3/8" keyless chuck for greater convenience. To insert a drill bit or other
accessory, follow the steps listed below.
1. Lock the paddle switch in the off position as described in Forward/Reverse Control Button.
2. Grasp the chuck (K) with one hand and rotate counterclockwise. Rotate far enough so that the
chuck opens sufficiently to accept the desired accessory.
3. Insert the bit or other accessory about 3/4" (19 mm) into the chuck and tighten securely by
holding the chuck and rotating in the clockwise direction.
To release the accessory, repeat step 2 listed above.
Your tool features an deep hex pocket (D) which is through and behind the chuck (K). This allows
for a 2" (51mm) or longer 1/4" hex shank bit to be inserted farther into the unit for close-up
applications. With the chuck jaws fully open (as described in Keyless Chuck) insert a 1/4" hex
shank bit fully into and through the chuck. The chuck can then be tightened as stated under
Keyless Chuck.
Belt Hook and Bit Clip (Optional Accessories) (Fig. 1)
WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect
battery pack before making any adjustments or removing/installing attachments or
WARNING: To reduce the risk of serious personal injury, DO NOT suspend tool overhead
or suspend objects from the belt hook. ONLY hang tool’s belt hook from a work belt.
WARNING: To reduce the risk of serious personal injury, ensure the screw holding the belt hook
is secure.
IMPORTANT: When attaching or replacing the belt hook (F) or bit clip (H), use only the screw (G)
that is provided. Be sure to securely tighten the screw.
The belt hook (F) and bit clip (H) can be be attached to either side of the tool using only the screw
(G) provided, to accommodate left- or right- handed users. If the hook or bit clip is not desired at
all, it can be removed from the tool.
To move belt hook or bit clip, remove the screw (G) that holds it in place then reassemble on the
opposite side. Be sure to securely tighten the screw.
WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool
from power source before making any adjustments or removing/installing attachments
or accessories.
Installing and Removing the Battery Pack (Fig. 3)
NOTE: For best results, make sure your battery pack is fully charged.
To install the battery pack (I) into the tool handle, align the battery pack with the rails inside the tool’s
handle and slide it into the handle until the battery pack is firmly seated in the tool and ensure that
it does not disengage.
To remove the battery pack from the tool, press the release button (J) and firmly pull the battery
pack out of the tool handle. Insert it into the charger as described in the charger section of this
NOTICE: If drilling thin material, use a wood “back-up” block to prevent damage to the material.
1. Install and tighten the desired drill bit in the chuck. Select the desired speed/torque range using
the dual range gear shifter to match the speed and torque to the planned operation.
2. Use sharp drill bits only.
3. Always apply pressure in a straight line with the bit. Use enough pressure to keep drill biting,
but do not push hard enough to stall the motor or deflect the bit.
4. Hold tool firmly with both hands to control the twisting action of the drill. If model is not equipped
with side handle, grip drill with one hand on the handle and one hand on the battery pack.
WARNING: Drill may stall if overloaded causing a sudden twist. Always expect the stall. Grip
the drill firmly to control the twisting action and avoid injury.
5. IF DRILL STALLS, it is usually because it is being overloaded or improperly used. RELEASE
PADDLE SWITCH IMMEDIATELY, remove drill bit from work, and determine cause of
6. To minimize stalling or breaking through the material, reduce pressure on drill and ease the bit
through the last fractional part of the hole.
. Keep the motor running when pulling the bit back out of a drilled hole. This will help prevent
. With variable speed drills there is no need to center punch the point to be drilled. Use a slow
speed to start the hole and accelerate by squeezing the paddle switch harder when the hole is
deep enough to drill without the bit skipping out.
Select the desired speed/torque range using the dual range gear shifter on the top of the tool to
match the speed and torque to the planned operation.
Insert the desired fastener accessory into the chuck as you would any drill bit.
WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect
battery pack before making any adjustments or removing/installing attachments or
WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week.
To minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when
performing this.
WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth
dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any
part of the tool into a liquid.
WARNING: Shock hazard. Disconnect the charger from the AC outlet before cleaning.
Dirt and grease may be removed from the exterior of the charger using a cloth or soft
non-metallic brush. Do not use water or any cleaning solutions.
WARNING: Since accessories, other than those offered by DEWALT, have not been tested with
this product, use of such accessories with this tool could be hazardous. To reduce the risk of injury,
only D
EWALT recommended accessories should be used with this product.
Recommended accessories for use with your tool are available at extra cost from your local
service center. If you need any assistance in locating any accessory, please contact D
Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-D
(1-800-433-9258) or visit our website
The charger and battery pack are not serviceable. There are no serviceable parts inside the charger
or battery pack.
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustments (including
brush inspection and replacement) should be performed by a D
EWALT factory service center,
a D
EWALT authorized service center or other qualified service personnel. Always use identical
replacement parts.
Three Year Limited Warranty
DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three
years from the date of purchase. This warranty does not cover part failure due to normal wear or tool
abuse. For further detail of warranty coverage and warranty repair information, visit www.dewalt.
com or call 1-800-4-D
EWALT (1-800-433-9258). This warranty does not apply to accessories or
damage caused where repairs have been made or attempted by others. This warranty gives you
specific legal rights and you may have other rights which vary in certain states or provinces.
In addition to the warranty, D
EWALT tools are covered by our:
EWALT will maintain the tool and replace worn parts caused by normal use, for free, any time
during the first year after purchase.
DC9071, DC9091, DC9096, DC9280, DC9360, DC9180, DCB120 and DCB201
If you are not completely satisfied with the performance of your D
EWALT Power Tool, Laser, or
Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for
a full refund – no questions asked.
LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products
sold in Latin America, see country specific warranty information contained in the packaging, call the
local company or see website ( for warranty information.
FIG. 1
FIG. 2
FIG. 3