DeWalt DW937 Instruction Manual

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DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286
(NOV04) Form 626185-00 DW937, DW938, DC385 Copyright © 2004 DEWALT
The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the "D" shaped
air intake grill; the array of pyramids on the handgrip; the kit box configuration; and the array of lozenge-shaped humps
on the surface of the tool.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL,
CALL US TOLL FREE AT: 1-800-4-DEWALT (1-800-433-9258)
General Safety Rules - For All Battery Operated Tools
A ARNING! Read and understand all instructions. Failure to follow all
instructions listed below may result in electric shock, fire and/or serious
personal injury.
SAVE THESE INSTRUCTIONS
WORK AREA
• Keep your work area clean and welllit. Cluttered benches and dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust
or fumes.
• Keep bystanders, children, and visitors away while operating a power tool
Distractions can cause you to lose control
ELECTRICAL SAFETY
• Do not abuse the cord. Never use the cord to carry the tool Keep cord away from
heat, oil, sharp edges or moving parts. Replace damaged cords immediately.
Damaged cords may create a fire.
• A battery operated tool with integral batteries or a separate battery pack must be
recharged only with the specified charger for the battery. A charger that may be suit-
able for one type of battery may create a risk of fire when used with another battery.
• Usebatteryoperatedtoolonlywiththespecificallydesignedbatterypack. Useofany
other batteries may create a risk of fire.
PERSONAL SAFETY
• Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use tool while tired or under the influence of drugs, alcohol, or
medication. A moment of inattention while operating power tools may result in serious per-
sonal injury,
• Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from moving parts. Loose clothing, jewe/_ or long hair
can be caught in moving parts. Air vents often cover moving parts and should also be
avoided.
• Avoid accidental starting. Be sure switch is in the locked or off position before
inserting battery pack. Carrying tools with your finger on the switch or inserting the bat-
tery pack into a tool with the switch on invites accidents.
• Remove adjusting keys or wrenches before turning the tool on. A wrench or key that
is left attached to a rotating part of the tool may result in personal injury,
• Do not overreach. Keep proper footing and balance at all times. Proper footing and bal-
ance enables better control of the tool in unexpected situations.
• Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes,
hard hat, or hearing protection must be used for appropriate conditions.
TOOL USE AND CARE
• Use clamps or other practical way to secure and support the workpiece to a stable
platform. Holding the work by hand or against your body is unstable and may lead to a loss
of control
• Do not force tool. Use the correct tool for your application. The correct tool will do the
job better and safer at the rate for which it is designed.
• Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled
with the switch is dangerous and must be repaired.
• Disconnect battery pack from tool or place the switch in the locked or off position
before making any adjustments, changing accessories, or storing the tool. Such
preventative safety measures reduce the risk of starting the tool accidentally.
• Store idle tools out of reach of children and other untrained persons. Tools are dan-
gerous in the hands of untrained users.
• When battery pack is not in use, keep it away from other metal objects like: paper
clips, coins, keys, nails, screws, or other small metal objects that can make a con-
nection from one terminal to another. Shorting the battery terminals together may cause
sparks, bums, or a fire.
• Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained
tools, with sharp cutting edges are less likely to bind and are easier to control
• Check for misalignment or binding of moving parts, breakage of parts, and any other
condition that may affect the tool's operation. If damaged, have the tool serviced
before using. Many accidents are caused by poorly maintained tools.
• Use only accessories that are recommended by the manufacturer for your model
Accessories that may be suitable for one tool may become hazardous when used on
another tool
SERVICE
• Tool service must be performed only by qualified repair personnel Service or main-
tenance performed by unqualified personnel could result in a risk of injury.
• When servicing a tool, use only identical replacement parts. Follow instructions in
the Maintenance section of this manual Use of unauthorized parts or failure to follow
Maintenance Instructions may create a risk of electric shock or injury,
Additional Specific Safety Rules
• Hold tool by insulated gripping surfaces when performing an operation where the
cutting tool may contact hidden wiring. Contact with a '`live" wire will make exposed
metal parts of the tool "live" and shock the operator.
• Keep hands away from moving parts. Never place your hands near the cutting area.
• Use extra caution when cutting overhead and pay particular attention to overhead
wires which may be hidden from view. Anticipate the path of falling branches and debris
ahead of time.
• Do not operate this tool for long periods of time. Vibration caused by the operating
action of this tool may cause permanent injury to fingers, hands, and arms. Use gloves to
provide extra cushion, take frequent rest periods, and limit daily time of use.
_,CAUTION: Shock hazard. When sawing into walls, floors or wherever "live" electrical wires
may be encountered, DO NOT TOUCH ANY METAL PARTS OF THE TOOL! Hold the tool only
by the plastic handle and housing to prevent electric shock if you saw into a "live" wire.
_,CAUTION: Wear appropriate personal hearing protection during use. Under some con-
ditions and duration of use, noise from this product may contribute to hearing loss.
J_CAUTION: When not in use, place tool on its side on a stable surface where it will not
cause a tripping or falling hazard. Some tools with large battery packs will stand upright on
the battery pack but may be easily knocked over.
_WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other con-
struction activities contains chemicals known to cause cancer, birth defects or other reproduc-
tive harm. Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically-treated lumber (CCA).
Your risk from these exposures varies, depending on how often you do this type of work. To
reduce your exposure to these chemicals: work in a well ventilated area, and work with
approved safety equipment, such as those dust masks that are specially designed to filter out
microscopic particles.
• Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling,
and other construction activities. Wear protective clothing and wash exposed areas
with soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may
promote absorption of harmful chemicals.
_WARNING: Use of this tool can generate and/or disburse dust, which may cause serious
and permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory pro-
tection appropriate for the dust exposure. Direct particles away from face and body,
• The label on your tool may include the following symbols. The symbols and their definitions
are as follows:
V................ volts
Hz .............. hertz
min ............ minutes
.... .......... direct current
[] .............. Class II Construction
.............. safety alert symbol
A .............. amperes
W .............. watts
"_ ............ alternating current
no .............. no load speed
.............. earthing terminal
.../min ........ revolutions per minute
Important Safety Instructions for Battery Packs
Your tool uses a DEWALT battery pack. When ordering replacement battery packs, be sure to
include catalog number and voltage: Extended Run-Time battery packs deliver more run-time
than standard battery packs. Consult the chart at the end of this manual for compatibility of
chargers and battery packs.
NOTE: Your tool will accept either standard or Extended Run Time battery packs. However, be
sure to select proper voltage. Batteries slowly lose their charge when they are not on the
charger, the best place to keep your battery is on the charger at all times.
The battery pack is not fully charged out of the carton. Before using the battery pack and
charger, read the safety instructions below. Then follow charging procedures outlined.
READ ALL INSTRUCTIONS
• Do not incinerate the battery pack even if it is severely damaged or is completely
worn out. The battery pack can explode in a fire.
• A smallleakage of liquid from the battery pack cells may occur under extreme usage
or temperature conditions. This does not indicate a failure. However, if the outer seal is
broken and this leakage gets on your skin:
a. Wash quickly with soap and water.
b. Neutralize with a mild acid such as lemon juice or vinegar.
c. If battery liquid gets into your eyes, flush them with clean water for a minimum of 10 min-
utes and seek immediate medical attention. (Medical note: The liquid is 25-35% solu-
tion of potassium hydroxide.)
• Charge the batterypacks onlyin D_WALTchargers.
• DO NOT splash or immerse in water or other liquids.
• Donotstoreorusethetoolandbatterypackinlocationswherethetemperaturemay
reach or exceed 105°F (such as outside sheds or metal buildings in summer).
_DANGER: Electrocution hazard. Never attempt to open the battery pack for any reason. If
battery pack case is cracked or damaged, do not insert into charger. Electric shock or electro-
cution may result. Damaged battery packs should be retumed to service center for recycling.
NOTE: Battery storage and carrying caps are provided for use whenever the
battery is out of the tool or charger. Remove cap before placing battery in
charger or tool.
_WARNING: Fire hazard. Do not store or carry battery so that metal
objects can contact exposed battery terminals. For example, do not place
battery in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose
nails, screws, keys, etc. without battery cap. Transporting batteries can possibly cause
fires if the battery terminals inadvertently come in contact with conductive materials
such as keys, coins, hand tools and the like. The US Department of Transportation
Hazardous Material Regulations (HMR) actually prohibit transporting batteries in commerce or
on airplanes (i.e., packed in suitcases and carry-on luggage) UNLESS they are properly pro-
tected from short circuits. So when transporting individual batteries, make sure that the battery
terminals are protected and well insulated from materials that could contact them and cause a
short circuit.
The RBRC
TM
Seal
The RBRC
TM
(Rechargeable Battery Recycling Corporation) Seal on the ,,_
nickel-cadmium battery (or battery pack) indicates that the costs to recycle the
battery (or battery pack) at the end of its useful life have already been paid by
DEWALT. In some areas, it is illegal to place spent nickel-cadmium batteries in
the trash or municipal solid waste stream and the RBRC program provides an
environmentally conscious alternative.
RBRC
TM
in cooperation with DEWALT and other battery users, has established programs in
the United States to facilitate the collection of spent nickel-cadmium batteries. Help protect our
environment and conserve natural resources by returning the spent nickel-cadmium battery to
an authorized DEWALT service center or to your local retailer for recycling. You may also con-
tact your local recycling center for information on where to drop off the spent battery.
RBRC
TM
is a registered trademark of the Rechargeable Battery Recycling Corporation.
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.
AWARNING: Shock hazard. Do not allow any liquid to get inside charger.
_,CAUTION: Burn hazard. To reduce the risk of injury, charge only DEWAL T nickel cadmium
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 mate-
rials 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 notintended forany uses other than charging DEWALTrecharge-
able batteries. Any other uses may result in risk of fire, electric shock or electrocution.
• Do not expose charger to rain or snow.
• Pullbyplugratherthancordwhendisconnectingcharger.Thiswillreduceriskofdam-
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.
• Donotuseanextensioncordunlessitisabsolutelynecessary. Useofimproperexten-
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.