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WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286
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Printed in U.S.A. (JAN02-CD-1) Form No. 579775
The following are trademarks for one or more D
scheme; the "D" shaped air intake grill; the array of pyramids on the handgrip; the kit box con-
figuration; and the array of lozenge-shaped humps on the surface of the tool.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY D
CALL US TOLL FREE AT:
1-800-4-DEWALT (1-800-433-9258)
GENERAL SAFETY RULES
WARNING! 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 well lit. Cluttered benches and dark areas invite acci-
dents.
• 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. Distract-
ions can cause you to lose control.
ELECTRICAL SAFETY
• Grounded tools must be plugged into an outlet properly installed and grounded in
accordance with all codes and ordinances. Never remove the grounding prong or
modify the plug in any way. Do not use any adapter plugs. Check with a qualified elec-
trician if you are in doubt as to whether the outlet is properly grounded. If the tools should
electrically malfunction or break down, grounding provides a low resistance path to carry
electricity away from the user. Applicable only to Class I (Grounded) tools.
• Double insulated tools are equipped with a polarized plug (one blade is wider than
the other.) This plug will fit in a polarized outlet only one way. If the plug does not fit fully in
the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install a
polarized outlet. Do not change the plug in any way. Double Insulation
need for the three wire grounded power cord and grounded power supply system.
Applicable only to Class ll tools.
• Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
• Don't expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
• Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an out-
let. Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged cords
immediately. Damaged cords increase the risk of electric shock.
• When operating a power tool outside, use an outdoor extension cord marked "W-A"
or "W." These cords are rated for outdoor use and reduce the risk of electric shock.
Recommended Minimum Wire Size for Extension Cords
Total Length of Cord
25 ft.
50 ft.
75 ft.
100 ft.
7.6 m
15.2 m
22.9 m
30.5 m
Wire Size
18 AWG
18 AWG
16 AWG
16 AWG
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 medica-
tion. A moment of inattention while operating power tools may result in serious personal
injury,
• Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can
be caught in moving parts. Air vents may cover moving parts and should be avoided as well.
• Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with
D25900
Copyright © 2000
WALT power tools: the yellow and black color
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Other liquids, such as perspiration present the same hazard.
125 ft.
150 ft.
38.1 m
45.7 m
14 AWG
14 AWG
your finger on the switch or plugging in tools that have the switch on invites accidents.
• Remove adjusting keys or wrenches before turning the tool on. A wrench or a 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 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 the plug from the power source before making any adjustments, chang-
ing accessories, or storing the tool. Such preventive 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.
• 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 tools 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 anoth-
er tool.
SERVICE
• Tool service must be performed only by qualified repair personnel. Service or mainte-
nance 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 Safety Instructions for Demolition Hammers
•
Hold tool by insulated gripping surfaces (side handle and rear handles) when performing
an operation where the cutting tool may contact hidden wiring or its own cord. Contact
with a "live" wire will make exposed metal parts of the tool "live" and shock the operator.
•
Wear ear protectors when hammering for extended periods of time. Prolonged exposure to
high intensity noise can cause hearing loss.
•
Wear safety goggles or other eye protection. Hammering operations cause chips to fly. Flying
particles can cause permanent eye damage. Wear a dust mask or respirator for applications that
generate dust.
•
Keep a firm grip on the tool at all times. Do not attempt to operate this tool without holding it
with both hands. It is recommended that the side handle be used at all times. Operating this tool
with one hand will result in loss of control. Breaking through or encountering hard materials such
as re-bar may be be hazardous as well.
•
Do not operate this tool for long periods of time. Vibration caused by hammer action may be
harmful to your hands and arms. Use gloves to provide extra cushion and limit exposure by tak-
ing frequent rest periods.
•
Do not recondition bits yourself. Chisel reconditioning should be done by an authorized spe-
cialist. Improperly reconditioned chisels could cause injury.
•
Wear gloves when operating tool or changing bits. Accessible metal parts on the tool and bits
may get extremely hot during operation. Small bits of broken material may damage bare hand.
•
Never place the tool down until the bit has come to a complete stop. Moving bits could cause
injury.
•
Do not strike jammed bits with a hammer to dislodge them. Fragments of metal or material
chips could dislodge and cause injury.
•
Slightly worn chisels can be resharpened by grinding. NOTE: Do not overheat the bit (dis-
coloration) while grinding a new edge. Badly worn chisels require reforging. Do not reharden and
temper the chisel.
WALT TOOL,
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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 sawdust from treated lumber. Do not allow dust to get into your
mouth, eyes or lay on the skin. Wear protective clothing whenever possible.
• The label on your tool may include the following symbols.
V ................volts
Hz ..............hertz
min ............minutes
................ Class II Construction
..............safety alert symbol
Operation
Your tool is powered by a D
plate marking.
Voltage decreases of more than 10% will cause loss of power and overheating. All D
tools are factory tested: if this tool does not operate, check the power supply.
eliminates the
Switch (Fig. 1)
The switch on your hammer is designed to lock-on.
To turn the tool on, press the rear half of the rocker switch (A) upward. To stop the tool, press
the forward half of the rocker switch.
This demolition hammer has adjustable speed and impact control capability. Rotate the adjust-
ment dial (E) to the desired speed and impact force for the application.
Low Speed - for chipping tile or breaking material that needs more control.
High Speed - for breaking holes in concrete or brick.
Tool may be used in low or high depending on users' removal needs.
Side Handle (Fig. 2)
TO ADJUST THE SIDE HANDLE:
175 ft.
1. Loosen the side handle clamp knob (C).
53.3 m
2. Adjust the side handle assembly (D) to the desired position.
3. Lock the side handle in place by fully tightening the clamp knob.
12 AWG
Bit Installation (Fig. 3)
1. Clean, then smear the bit shank with grease.
2. Fully insert the bit shank into the chuck. Push and rotate the bit until it locks in place.
To Remove the bit, pull the chuck collar back toward the rear of the tool and remove the bit.
Flat Chisel Rotation (Fig. 4)
Flat chisels can be rotated 360˚ to align chisel with work surface angle. Rotate the chisel rota-
tion collar (F) in the direction of the arrow until the desired position is reached.
A ......................amperes
W ....................watts
....................alternating current
n o ....................no load speed
..........direct current
......................earthing terminal
.../min ..............revolutions per minute
WALT built motor. Be sure your power supply agrees with name-
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WALT
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Summary of Contents for DeWalt 579775
- Page 1 WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 Printed in U.S.A. (JAN02-CD-1) Form No. 579775 The following are trademarks for one or more D WALT power tools: the yellow and black color scheme; the “D” shaped air intake grill; the array of pyramids on the handgrip; the kit box con- figuration;...
- Page 2 Maintenance and Inspection CAUTION: Be sure to switch power OFF and disconnect the plug from the power supply before performing any maintenance or inspection. INSPECTING THE MOUNTING SCREWS Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately.
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Page 3: Entretien Et Inspection
à un traitement de trempe et de revenu. Fonctionnement Cet outil est entraîné par un moteur D WALT. S’assurer que l’intensité nominale du cordon d’al- imentation correspond à celle indiquée sur la plaque signalétique. L’utilisation d’une tension moindre de 10 % que celle indiquée entraînera une perte de puis- sance et une surchauffe. - Page 4 Para garantizar la SEGURIDAD y la CONFIABILIDAD, deberán hacerse reparaciones, man- tenimiento y ajustes de esta herramienta en los centros autorizados de servicio D organizaciones autorizadas. Estas organizaciones prestan servicio a las herramientas DeWALT y emplean siempre refacciones legitimas D WALT.