DeWalt DWE4100 Manual De Instrucciones página 10

English
1. Place or appropriately thread backing pad
the spindle.
2. Place the sanding disc
3. While depressing spindle lock, thread the clamp nut
on spindle, piloting the raised hub on the clamp nut into
the center of san ding disc and backing pad.
4. Tighten the clamp nut by hand. Then depress the spindle
lock button while turning the sanding disc until the sanding
disc and clamp nut are snug.
5. To remove the wheel, grasp and turn the backing pad
and sanding pad while depressing the spindle lock button.
Using Sanding Backing Pads (Fig. O)
Choose the proper grit sandpaper for your application.
Sandpaper is available in various grits. Coarse grits yield
faster material removal rates and a rougher finish. Finer grits
yield slower material removal and a smoother finish.
Begin with coarse grit discs for fast, rough material removal.
Move to a medium grit paper and finish with a fine grit disc
for optimal finish.
Coarse
Medium
Fine Finishing
Very Fine Finishing
1. Allow the tool to reach full speed before touching tool to
the work surface.
2. Apply minimum pressure to work surface, allowing the
tool to operate at high speed. Sanding rate is greatest when
the tool operates at high speed.
3. Maintain a 5˚ to 15˚ angle between the tool and work
surface. The san ding disc should contact approximately one
inch of work surface.
4. Move the tool constantly in a straight line to prevent
burning and swirling of work surface. Allowing the tool to
rest on the work surface without moving, or moving the
tool in a circular motion causes burning and swirling marks
on the work surface.
5. Remove the tool from work surface before turning tool
off. Allow the tool to stop rotating before laying it down.
Mounting and Using Wire Brushes and Wire Wheels
Wire cup brushes or wire wheels screw directly on the
grinder spindle without the use of flanges. Use only wire
brushes or wheels provided with a 5/8"-11 threaded hub.
A Type 27 guard is required when using wire brushes
and wheels.

CAUTION: Wear work gloves when handling wire
brushes and wheels. They can become sharp.

CAUTION: Wheel or brush must not touch guard when
mounted or while in use. Undetectable damage could occur
to the accessory, causing wires to fragment from accessory
wheel or cup.
Mounting Wire Cup Brushes and Wire Wheels
1. Thread the wheel on the spindle by hand.
2. Depress spindle lock button and use a wrench on the
hub of the wire wheel or brush to tighten the wheel.
3. To remove the wheel, reverse the above procedure.
NOTICE: Failure to properly seat the wheel hub before turning
the tool on may result in damage to tool or wheel.
Using Wire Cup Brushes and Wire Wheels
(Fig. P, Q)
Wire wheels and brushes can be used for removing rust,
scale and paint, and for smoothing irregular surfaces.
10
15
16 on the backing pad.
16 – 30 grit
36 – 80 grit
100 – 120 grit
150 – 180 grit
on 1. Allow the tool to reach full speed before touching the
tool to the work surface.
2. Apply minimum pressure to work surface, allowing
the tool to operate at high speed. Material removal rate is
5
greatest when the tool operates at high speed.
3. Maintain a 5˚ to 10˚ angle between the tool and work
surface for wire cup brushes.
4. Maintain contact between the edge of the wheel and the
work surface with wire wheels.
5. Continuously move the tool in a forward and back
motion to avoid creating gouges in the work surface.
Allowing the tool to rest on the work surface without
moving, or moving the tool in a circular motion causes
burning and swirling marks on the work surface.
6. Remove the tool from the work surface before turning
the tool off. Allow the tool to stop rotating before setting
it down.

CAUTION: Use extra care when working over an edge, as
a sudden sharp movement of grinder may be experienced.
Mounting and Using Cutting (Type 1) Wheels
Cutting wheels include diamond wheels and abrasive discs.
Abrasive cutting wheels for metal and concrete use are
available. Diamond blades for concrete cutting can also
be used.

WARNING: A closed, 2‑sided cutting wheel guard is not
included with this tool but is re quired when using cutting
wheels. Fail ure to use proper flange and guard can re sult in
injury resulting from wheel breakage and wheel contact. Refer
to the Accessories Chart for more information.
Mounting Closed (Type 1) Guard (Fig. R–T)

WARNING: If present, the ONE TOUCH™ guard screw,
lever and spring must be removed before attempting to
mount the closed (Type 1) guard. The removed parts must
be retained and reinstalled to use the ONE TOUCH™ guard.
Noting the position of these parts before disassembly will aid
in reassembly.
1. Open the guard latch
guard with the slots
2. Push the guard down until the guard lug engages and
rotates freely in the groove on the gear case hub.
3. Rotate guard
body should be positioned between the spindle and the
operator to provide maximum operator protection.
4. Close the guard latch to secure the guard on the gear
case cover. You should be unable to rotate the guard by
hand when the latch is in closed position. If rotation is
possible, tighten the adjusting screw
in the closed position. Do not operate grinder with a loose
guard or clamp lever in open position.
5. To remove the guard, open the guard latch, rotate
the guard so that the arrows are aligned and pull up on
the guard.
nOTE: If, after a period of time the closed (Type 1) guard
becomes loose, tighten the adjusting
screw 18
NOTICE: Do not tighten adjusting screw with clamp lever in
open position. Undetectable damage to guard or mounting
hub may result.

CAUTION: If the guard cannot be tightened by the
adjusting clamp, do not use the tool. To reduce the risk of
personal injury, take the tool and guard to an authorized
service center to repair or replace the guard.
17 . Align the lugs
13 on the gear case.
6 into desired working position. The guard
with the clamp lever in the closed position.
12 on the
18 with clamp lever