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2
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.
• CAUTION: When cutting 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 insulated
grasping surfaces to prevent electric shock if you saw into a live
wire.
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.
Your D
E
WALT tool is powered by a D
E
WALT 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
D
E
WALT tools are factory tested; if this tool does not operate, check
the power supply. If the nameplate marking on the tool shows 120
volts, 60Hz or “AC Only”,(DW890, DW891) your tool must be
operated only with alternateing current and never with direct current.
A marking of 220/240 volts, 50-60 Hz or “AC Only” (DW891-220)
FIG. 1
LOCK
BUTTON
FIG. 2
CAP
SCREWS
HOUSING
ECCENTRIC
BEARING
ASSEMBLY
WASHER
FIG. 3
SIDE KNIFE AND
SIDE SPACER
SPACER
BUSHINGS
LEFT SIDE KNIFE
DW890/384122 9/1/00 3:24 PM Page 2
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