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DEWALT Industrial
Tool Co., 701 East Joppa Road, Baltimore,
MD 21286
Printed in U.S.A. (JUN00-CD-1) Form No.383566-01
DW880, etc.
Copyright © 1999
F 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)
Important
Safety
Instructions
Z_WARNING:
When using electric tools, basic safety precautions
should
always be followed
to reduce
risk of fire, electric shock, and personal
injury, including
the following:
READ ALL INSTRUCTIONS
Grounding
Instructions
(DW880, DW882, DW888)
This tool should be grounded
while in use to protect
the operator
from electric
shock. The tool
is equipped
with a 3-conductor
cord and 3-prong grounding
type plug to fit the proper ground-
ing type receptacle.
The green (or green and yellow) conductor
in the cord is the grounding
wire. Never connect
the green
(or green and yellow) wire to a live terminal.
If your
unit is
intended
for use on less than 150 V, it has a plug that looks like that shown
in sketch A. If it
is for use on 150 to 250 V, it has a plug that looks like that shown
in sketch
D. An adapter,
sketches
B and C, is available
for connecting
sketch A type plugs to 2-prong receptacles.
The
green-colored
rigid ear, lug, or the like, extending
from the adapter
must be connected
to a
permanent
ground, such as a properly
grounded
outlet box. No adapter is available
for a plug
as shown in sketch D.ADAPTER
SHOWN IN FIGURES
B and C IS NOT FOR USE IN CANA-
DA.
A
GROUNDED
B
C
D
GROUNDING
BOX
MEANS
ADAPTER
GROUNDING PIN
GROUNDING PIN
Double
Insulation
(DW887)
Double insulated
tools are constructed
throughout
with two separate
layers of electrical
insu-
lation or one double thickness
of insulation
between
you and the tool's electrical
system. Tools
built with this insulation
system
are not intended
to be grounded.
As a result, your tool is
equipped
with a two prong plug which permits you to use extension
cords without concern for
maintaining
a ground connection.
NOTE:
Double insulation
does not take the place of normal safety precautions
when operat-
ing this tool. The insulation
system
is for added protection
against
injury resulting
from a pos-
sible electrical
insulation
failure within the tool.
Z_CAUTION:
WHEN SERVICING
USE ONLY IDENTICAL
REPLACEMENT
PARTS. Repair
or replace damaged
cords.
Polarized
Plugs
(DW887)
Polarized
plugs (one blade is wider than the other) are used on equipment
to reduce the risk
of electric
shock.
When provided,
this plug will fit in the polarized
outlet only one way. If the
plug does not fit fully into the outlet, reverse
the plug. If it still does not fit, contact
a qualified
electrician
to install the proper outlet. Do not change the plug in any way.
Safety
Instructions
For All
Tools
•
KEEP WORK AREA CLEAN.
Cluttered
areas and benches
invite injuries.
•
CONSIDER
WORK AREA
ENVIRONMENT.
Don't expose power
tools to rain. Don't use
power tools in damp or wet locations.
Keep work area weft lit. Do not use tool in presence
of flammable
liquids or gases.
•
GUARD
AGAINST
ELECTRIC
SHOCK.
Prevent body contact with grounded
surfaces.
For
example;
pipes, radiators,
ranges, and refrigerator
enclosures.
•
KEEP
CHILDREN
AWAY.
Do not let visitors
contact
tool or extension
cord. Aft visitors
should be kept away from work area.
•
STORE
IDLE TOOLS.
When not in use, tools should be stored in dry, and high or locked-
up place -- out of reach of children.
•
DON'T
FORCE
TOOL. It will do the job better and safer at the rate for which it was intend-
ed.
•
USE RIGHT TOOL. Don't force small tool or attachment
to do the job of a heavy-duty
tool.
Don't use tool for purpose
not intended.
•
DRESS
PROPERLY.
Do not wear loose clothing or jewelry.
They can be caught in moving
parts.
Rubber
gloves
and non-skid
footwear
are recommended
when working
outdoors.
Wear protective
hair covering
to contain
long hair.
•
USE SAFETY
GLASSES.
Also use face or dust mask if operation
is dusty.
•
DON'T ABUSE
CORD.
Never carry tool by cord or yank it to disconnect
from receptacle.
Keep cord from heat, oil, and sharp edges.
•
SECURE
WORK. Use clamps or a vise to hold work. It's safer than using your hand and it
frees both hands to operate tool.
•
DON'T
OVERREACH.
Keep proper footing and balance
at aft times.
•
MAINTAIN
TOOLS
WITH CARE.
Keep tools sharp and clean for better and safer perfor-
mance. Follow instructions
for lubricating
and changing
accessories.
Inspect tool cords peri-
odically
and if damaged,
have repaired
by authorized
service
facility.
Inspect
extension
cords periodically
and replace
if damaged.
Keep handles
dry, clean, and free from oil and
grease.
•
DISCONNECT
OR LOCK OFF TOOLS when not in use, before servicing,
and when chang-
ing accessories,
such as blades,
bits, cutters.
•
REMOVE
ADJUSTING
KEYS AND WRENCHES.
Form habit of checking
to see that keys
and adjusting
wrenches
are removed
from tool before turning it on.
•
AVOID UNINTENTIONAL
STARTING.
Don't carry tool with finger on switch. Be sure switch
is off when plugging
in.
•
EXTENSION
CORDS.
Make sure your extension
cord is in good condition.
When using an
extension
cord, be sure to use one heavy enough to carry the current your product will draw.
An undersized
cord will cause a drop in fine voltage resulting
in loss of power and over-
heating.
The following
table shows the correct
size to use depending
on cord length
and
nameplate
ampere rating. If in doubt, use the next heavier gage. The smaller the gage num-
ber, the heavier the cord.
Recommended
Minimum Wire Size for Extension Cords
Total
Length
of Cord
25 ft.
50 ft.
75 ft.
100 ft.
125 ft.
150 ft.
175 ft.
7.6 m
15.2 m
22.9 m
30.5 m
38.1 m
45.7 m
53.3 m
Wire
Size
18AWG
18AWG
16AWG
16AWG
14AWG
14AWG
12AWG
OUTDOOR
USE EXTENSION
CORDS.
When tool is used outdoors,
use only extension
cords intended
for use outdoors
and so marked.
STAY ALERT.
Watch what you are doing. Use common
sense.
Do not operate tool when
you are tired.
CHECK
DAMAGED
PARTS.
Before
further
use of the tool, a guard or other part that is
damaged
should be carefully checked
to determine
that it will operate properly
and perform
its intended
function.
Check for alignment
of moving
parts, binding
of moving
parts, break-
age of parts, mounting,
and any other conditions
that may affect its operation.
A guard or
other part that is damaged
should be properly
repaired or replaced by an authorized
service
center
unless
otherwise
indicated
elsewhere
in this instruction
manual.
Have defective
switches replaced
by authorized
service
center. Do not use tool if switch does not turn it on
and off.
Additional
Safety
Instructions
for
Grinders
•
ALWAYS
WEAR EYE PROTECTION.
•
KEEP GUARDS
IN PLACE.
•
Use only grinding
wheels having
a maximum
operating
speed at least high as "No Load
RPM" marked on the tool's nameplate.
•
Before using, inspect recommended
accessory
for cracks or flaws. If such a crack or flaw is
evident, discard the accessory.
The accessory
should also be inspected
whenever
you think
the tool may have been dropped.
•
When starting the tool (with a new or replacement
wheel instated)
hold the tool in a weft pro-
tected area and let it run for one minute.
If the wheel has an undetected
crack or flaw, it
should burst in less than one minute. Never start the tool with a person in line with the wheel.
This includes
the operator.
•
In operation,
avoid bouncing
the wheel or giving it rough treatment.
If this occurs, stop the
tool and inspect
the wheel.
•
ALWAYS
USE GUARDS
with depressed
center wheels or flaring cup grinding wheels.
•
Clean your tool out periodically.
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.
SAVE
THESE
INSTRUCTIONS
Motor
Your DEWALT tool is powered by a DEWALT built motor. Be sure your power supply agrees with
the nameplate
marking.
Voltage
decrease
of more than
10% will cause loss of power and
overheating.
All DEWALT tools are factory tested; if this tool does not operate, check the power
supply.
Trigger
Switch
(Figure 2) 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 locking button, and release
the trigger switch.
Release the locking
button and tool will stay on. To turn turn the tool off,
depress and release the trigger switch.
Operation
To install grinding
wheels:
1. TURN OFF TOOLAND
DISCONNECT
FROM
POWER
SUPPLY.
2. Remove
or unlatch
and pivot away wheel guard cover.
3. 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).
4. 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.
5. Only tighten arbor nut sufficiently
to drive the wheel without slippage.
6. Be sure to replace guard end cover.
7. When starting the tool (with a new or replacement
wheel installed)
hold the tool in a well
protected
area. tf 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 opera-
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