Prior To Operation - DeWalt D28490 Manual Del Usuario

3. Press the guard (d) down and rotate it to the
required position.
4. Securely tighten the screw (m).
5. To remove the guard, slacken the screw.
CAUTION: If the guard cannot be
tightened by the adjusting screw, do
not use the tool. To reduce the risk of
personal injury, take the tool and guard
to a service center to repair or replace
the guard.
Fitting and Removing a Grinding or
Cutting Disc (fi g. 1, 4, 5)
WARNING: Do not use a damaged
disc.
1. Place the tool on a table, guard up.
2. Fit the backing flange (i) correctly onto the
spindle (o) (fig. 4).
3. Place the disc (n) on the backing flange (i).
When fitting a disc with a raised center, make
sure that the raised centre (j) is facing the
backing flange (i).
4. Screw the threaded clamp nut (h) onto the
spindle (o) (fig. 5):
a. The ring on the threaded clamp nut (h) must
face towards the disc when fitting a grinding
disc (fig. 5A);
b. The ring on the threaded clamp nut (h) must
face away from the disc when fitting a cutting
disc (fig. 5B).
5. Press the spindle lock button (c) and rotate the
spindle (o) until it locks in position.
6. Tighten the threaded clamp nut (h) with the two-
pin spanner supplied.
7. Release the spindle lock.
8. To remove the disc, loosen the threaded clamp
nut (h) with the two-pin spanner.
Fitting and Removing a
Backing Pad/Sanding Sheet
(fi g. 1, 5)
1. Place the tool on a table, guard up.
2. Remove the backing flange (i).
3. Place the rubber backing pad correctly onto the
spindle (o).
4. Place the sanding sheet on the rubber backing
pad.
5. Screw the threaded clamp nut (h) onto the
spindle. The ring on the threaded clamp nut (h)
must face towards the rubber backing pad.
6. Press the spindle lock button (c) and rotate the
spindle (o) until it locks in position.
7. Tighten the threaded clamp nut (h) with the two-
pin spanner.
8. Release the spindle lock
9. To remove the rubber backing pad, loosen the
threaded clamp nut (h) wih the two-pin spanner.
Fitting a Wire Cup Brush
Screw the wire cup brush directly onto the spindle
without the use of the spacer and threaded flange.

Prior to Operation

• Install the guard and appropriate disc or wheel.
Do not use excessively worn discs or wheels.
• Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
cracks, tear or excess wear, wire brush for loose
or cracked wires. If power tool or accessory
is dropped, inspect for damage or install an
undamaged accessory. After inspecting and
installing an accessory, position yourself and
bystanders away from the plane of the rotating
accessory and run the power tool at maximum
no-load speed for one minute. Damaged
accessories will normally break apart during this
test time.
• Be sure the inner and outer flange are mounted
correctly. Follow the instructions given in the
Grinding and Cutting Accessory Chart.
• Make sure the disc or wheel rotates in the
direction of the arrows on the accessory and the
tool.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
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
attachments or accessories. Before
reconnecting the tool, depress and
release the trigger switch to ensure that
the tool is off.
EN GL IS H
41