DeWalt DCG440 Instruction Manual page 16

English

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
sudden reaction.
Proper hand position requires one hand on the main
handle and the other hand on the auxilliary handle
13
shown in Figure L.
Trigger Switch and Lock‑off Lever (Fig. A)

WARNING: Before using the tool, check that the
auxilliary handle is tightened securely.

WARNING: Hold the auxilliary handle and main
handle of the tool firmly 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.
1. To turn the tool on, push the lock‑off lever
back of the tool, then depress the trigger switch
tool will run while the switch is depressed.
2. Turn the tool off by releasing the releasing switch.

WARNING: Allow the tool to reach full speed before
touching tool to the work surface. Lift the tool from the
work surface before turning the tool off.
nOTE: This tool has no provision to lock the switch in the ON
position, and should never be locked ON by any other means.
Spindle Lock (Fig. A)
The spindle lock button
3
from rotating when installing or removing wheels. Operate
the spindle lock only when the tool is turned off, the battery
is removed and has come to a complete stop.
NOTICE: To reduce the risk of damage to the tool, do
not engage the spindle lock while the tool is operating.
Damage to the tool will result and attached accessory
may spin off possibly resulting in injury.
To engage the lock, depress the spindle lock button
and rotate the spindle until you are unable to rotate the
spindle further.
Surface Grinding, Sanding and Wire
Brushing (Fig. M)

CAUTION: Always use the correct guard per the
instructions in this manual.
To perform work on the surface of a workpiece:
1. Allow the tool to reach full speed before touching the
tool to the work surface.
2. Apply minimum pressure to the work surface, allowing
the tool to operate at high speed. Material removal rate is
greatest when the tool operates at high speed.
3. Maintain an appropriate angle between the tool
and work surface. Refer to the chart according to
particular function.
Function
Grinding
Sanding with Flap Disc
Sanding with Backing Pad
Wire Brushing
14
toward the
2
is provided to prevent the spindle
Angle
20˚-30˚
5˚-10˚
5˚-15˚
5˚-10˚
4. Maintain contact between the edge of the wheel and the
work surface.
‑ If grinding, sanding with flap discs or wire brushing
move the tool continuously in a forward and back
motion to avoid creating gouges in the work surface.
, as
5
‑ If sanding with a backing pad, move the tool
constantly in a straight line to prevent burning and
swirling of work surface.
nOTE: Allowing the tool to rest on the work surface without
moving will damage the workpiece.
5. Remove the tool from work surface before turning tool
off. Allow the tool to stop rotating before laying it down.

CAUTION: Use extra care when working over an
edge, as a sudden sharp movement of grinder may
be experienced.
Precautions To Take When Working on a
. The
1
Painted Workpiece
1. Sanding or wire brushing of lead based paint is NOT
RECOMMENDED due to the difficulty of controlling
the contaminated dust. The greatest danger of lead
poisoning is to children and pregnant women.
2. Since it is difficult to identify whether or not a paint
contains lead without a chemical analysis, we
recommend the following precautions when sanding
any paint:
Personal safety
1. No children or pregnant women should enter the work
area where the paint sanding or wire brushing is being
done until all clean up is completed.
2. A dust mask or respirator should be worn by all persons
entering the work area. The filter should be replaced daily
or whenever the wearer has difficulty breathing.
nOTE: Only those dust masks suitable for working with
lead paint dust and fumes should be used. Ordinary
painting masks do not offer this protection. See your local
hardware dealer for the proper N.I.O.S.H. approved mask.
3. NO EATING, DRINKING or SMOKING should be done in
the work area to prevent ingesting contaminated paint
particles. Workers should wash and clean up BEFORE
eating, drinking or smoking. Articles of food, drink, or
smoking should not be left in the work area where dust
would settle on them.
Environmental safety
1. Paint should be removed in such a manner as to
minimize the amount of dust generated.
2. Areas where paint removal is occurring should be sealed
with plastic sheeting of 4 mils thickness.
3. Sanding should be done in a manner to reduce tracking
of paint dust outside the work area.
Cleaning and Disposal
1. All surfaces in the work area should be vacuumed and
thoroughly cleaned daily for the duration of the sanding
project. Vacuum filter bags should be changed frequently.
2. Plastic drop cloths should be gathered up and disposed
of along with any dust chips or other removal debris.
They should be placed in sealed refuse receptacles and