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• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratory protection.
WARNING: Always wear proper personal hearing protection that conforms to ANSI
S12.6 (S3.19) during use. Under some conditions and duration of use, noise from this product
may contribute to hearing loss.
WARNING: Always use eye protection. All users and bystanders must wear eye protection
that conforms to ANSI Z87.1.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to cause cancer, birth defects, or other
reproductive 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 protection
appropriate for the dust exposure. Direct particles away from face and body.
CAUTION: Use extra care when working into a corner because a sudden, sharp movement
of the grinder may be experienced when the wheel or other accessory contacts a secondary
surface or a surface edge.
• 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 I Construction
........................(grounded)
....................Class II Construction
........................(double insulated)
BPM ................beats per minute
SAVE THESE INSTRUCTIONS
Motor
Your D
WALT tool is powered by a D
WALT built motor. Be sure your power supply agrees with the
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nameplate marking. Voltage decrease of more than 10% will cause loss of power and overheating.
All D
WALT tools are factory tested; if this tool does not operate, check the power supply.
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COMPONENTS (Fig. 1, 2)
WARNING: Never modify the power tool or any part of it. Damage or personal injury could
result.
A. Lock-on button
B. Paddle switch
C. Trigger switch
D. Trigger lock
INTENDED USE
The DW880, DW887 and DW888 heavy-duty die/straight grinders have been designed for pro-
fessional grinding at various work sites (i.e., construction sites). DO NOT use under wet condi-
tions or in presence of flammable liquids or gases.
These heavy-duty die/straight grinders are professional power tools. DO NOT let children come
into contact with the tool. Supervision is required when inexperienced operators use this tool.
Trigger Switch (Fig. 1,2)
WARNING: Grasp tool firmly with both hands to maintain control of the tool at start up and
during use and until the wheel or accessory stops rotating. Make sure the wheel has come to a
complete stop be fore laying the tool down.
NOTE: To reduce unexpected tool movement, do not switch the tool on or off while under load
conditions. Allow the grinder to run up to full speed before touching the work surface. Lift the
tool from the surface before turning the tool off. Allow the tool to stop rotating before putting it
down.
WARNING: Before connecting the tool to a power source depress and release the trigger
switch (C) once without depressing the lock-on button (A) to ensure that the switch is off.
Depress and release the trigger switch as described above after any interruption in power supply
to the tool, such as the activation of a ground fault interrupter, throwing of a circuit breaker,
accidental unplugging, or power failure.
Depressing the trigger switch turns the tool on. Releasing it turns the tool off. To lock the switch
on, depress the trigger fully, press and hold in the lock-on button, and release the trigger switch.
Release the lock-on button and tool will stay on. To turn turn the tool off, depress and release
the trigger switch.
OPERATION
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 attach-
ments or accessories. Before reconnecting the tool, depress and release the trigger
switch to ensure that the tool is off.
Install Grinding Wheels
1. Remove or unlatch and pivot away wheel guard cover.
2. Remove mounting nut by turning it counterclockwise (when facing outer side of wheel). The
spindle can be held stationary by :
a. inserting and holding a suitable pin in one of the holes provided in the spindle collar, next
to the inward side of the wheel (5" and 6" straight grinders).
b. holding a wrench on the flats provided on the exposed portion of the spindle (2 1/2"
straight grinder).
3. When installing the new grinding wheel, always use blotters between the wheel and each
surface it contacts (all grinders). For 5" and 6" straight grinders, use the clamp washers,
supplied with tool, on either side of the grinding wheel.
4. Only tighten arbor nut sufficiently to drive the wheel without slippage.
5. Be sure to replace guard end cover.
6. When starting the tool (with a new or replacement wheel installed) hold the tool in a well
protected area. If the wheel has an undetected crack or flaw, it should burst in less than one
minute. Never start tool with a person in line with the wheel. This includes the operator.
WARNING: Grasp tool firmly with both hands to maintain control of the tool at start up and
during use and until the wheel or accessory stops rotating. Make sure the wheel has come to a
complete stop be fore laying the tool down.
Put the work in a vise or clamp it securely. Use a face mask over the nose and mouth if the
operation raises dust. Treat the wheel with respect. do not jam the wheel into the work or use
unnecessary pressure. Grind only on the face of the wheel (Figure 3), unless you have a special
wheel specifically make to permit grinding on the side of the wheel.
MAINTENANCE
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 attach-
ments or accessories. Before reconnecting the tool, depress and release the trigger
switch to ensure that the tool is off.
Cleaning
WARNING: Blowing dust and grit out of motor and switch actuator using clean, dry compressed
air is a necessary regular maintenance procedure. Dust and grit containing metal particles often
accumulate on interior surfaces and could create an electrical shock or electrocution if not
A ................amperes
W ...............watts
.............alternating current
n o ..............no load speed
...............earthing terminal
..............safety alert symbol
.../min ........revolutions or reciprocation
...................per minute
DW880 2-1/2" (63 MM) STRAIGHT GRINDER
MEULEUSE DROITE DW880
DE 63,5 MM (2-1/2 PO)
ESMERILADORA RECTA DW880
DE 63 MM (2-1/2")
DW888 2" (50 MM) DIE GRINDER
MEULES À RECTIFIER LES MATRICES DW888 DE 50 MM (2 PO)
ESMERILADORA DE TROQUEL DW888 DE 50 MM (2")
FIG. 1
A
FIG. 3
frequently cleaned out. It is recommended that a ground fault circuit interrupter (GFCI) is utilized
to further protect the user from electric shock resulting from the accumulation of conductive
particles. If the tool is deactivated by the GFCI, unplug the tool and check and clean the tool before
resetting the GFCI. ALWAYS WEAR SAFETY GLASSES (ANSI Z87.1) when cleaning or
using this tool.
WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts
of the tool. These chemicals m ay 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.
Lubrication
D
WALT tools are properly lubricated at the factory and are ready for use. Tools should be
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relubricated every sixty days to six months depending on usage. Tools constantly used on pro-
duction or heavy-duty jobs and tools exposed to heat may require more frequent lubrication. This
lubrication should only be performed by D
Motor Brushes
Be sure tool is unplugged before inspecting brushes. Carbon brushes should be regularly inspect-
ed for wear. To inspect brushes, unscrew the plastic brush inspection caps (located in the sides
of the motor housing) and the spring and brush assemblies may be withdrawn from the tool.
Keep brushes clean and sliding freely in their guides. Carbon brushes have varying symbols
stamped into them, and if the brush is worn down to the line closest to the spring, they must be
replaced. New brush assemblies are available at your local service center.
Accessories
WARNING: Since accessories, other than those offered by D
with this product, use of such accessories with this tool could be hazardous. To reduce the risk
of injury, only D
WALT, recommended accessories should be used with this product.
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Recommended accessories for use with your tool are available at extra cost from your local
dealer or authorized service center. If you need assistance in locating any accessory, please
contact D
WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-
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D
WALT (1-800-433-9258) or visit our website www.dewalt.com.
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WARNING: To reduce the risk of injury, ALWAYS use proper guards when grinding and wear
eye protection.
ACCESSORIES FOR 5" AND 6" STRAIGHT GRINDERS
Cotton Buffing Wheels
Grinding Wheels (Use guard supplied with tool)
ACCESSORY FOR DIE GRINDERS
Mounted Stones and Points
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustments (including
brush inspection and replacement) should be performed by a D
a D
WALT authorized service center or other qualified service personnel. Always use identical
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replacement parts.
Three Year Limited Warranty
D
WALT will repair, without charge, any defects due to faulty materials or workmanship for
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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
WALT (1-800-433-9258). This warranty does not apply to
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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
WALT tools are covered by our:
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1 YEAR FREE SERVICE
D
WALT will maintain the tool and replace worn parts caused by normal use, for free, any time
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during the first year after purchase.
90 DAY MONEY BACK GUARANTEE
If you are not completely satisfied with the performance of your D
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 either in the packag-
ing, call the local company or see website for warranty information.
FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are miss-
ing, call 1-800-4-DEWALT for a free replacement.
DW887 1-1/ 2" (38 MM) DIE GRINDER
MEULES À RECTIFIER LES MATRICES DW887
DE 38 MM (1-1/2 PO)
ESMERILADORA DE TROQUEL DW887
DE 38 MM (1-1/2")
FIG. 2
B
D
FIG. 4
WALT repair technicians.
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WALT, have not been tested
E
WALT factory service center,
E
WALT Power Tool, Laser, or
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