Prior To Operation - DeWalt DW831 Original Instructions Manual

ASSEMBLY AND ADJUSTMENTS

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. Be sure the
trigger switch is in the OFF position. An accidental start-up
can cause injury.
Attaching the Side Handle (Fig. G)

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

WARNING: The side handle should always be used to
maintain control of the tool at all times.
Screw the side handle 3 tightly into one of the holes
either side of the gear case.
Mounting and Removing the Guard

WARNING: Guards must be used with this grinder.
DW831 - Mounting (Fig. B & D)
• Place the angle grinder on a table, spindle up.
• Align the lug 6 with the slot
• Press the guard 4 down and turn it in the direction of the
arrow (Fig. B1).

WARNING: The guard locking pin
from coming loose.
DW831 - Removing (Fig. B & D)
• Hold the tool in your hand.
• Rotate the guard in the direction of the arrow (Fig. C1).
4
• Use a screwdriver to press the locking pin
• Release the guard.
DW840 - Mounting (Fig. C & D)
• Place the angle grinder on a table, spindle up.
• Align the lugs 6 with the slots
• Press the guard 4 down and turn it in the direction of the
arrow (Fig. C).
• Securely tighten the screws
DW840 - Removing
• To remove the guard, proceed in reverse order.
Mounting and Removing a Grinding Wheel
(Fig. E, F)
• Place the tool on a table, guard up.
• Fit the backing flange
11
• Place the grinding wheel on the backing flange.
• Screw the threaded flange
spindle .
12
• Press the spindle lock 5 and rotate the grinding wheel until
it locks in position.
• Tighten the threaded flange using the two-pin
spanner supplied.
13
• Release the spindle lock.
15 on
7 in the bracket.
9 prevents the guard
9 in the slot.
7 .
10 .
correctly onto the spindle .
12
14 onto the
• To remove the grinding wheel, loosen the threaded
flange using the two-pin spanner (while the spindle lock
is engaged).
Fitting and Removing a Backing Pad/
Sanding Sheet (Fig. E, F)
• Place the tool on a table, guard up.
• Remove the backing flange
• Place the rubber backing pad correctly onto the spindle
• Place the sanding sheet on the rubber backing pad.
• Screw the threaded clamp nut
ring on the threaded clamp nut
rubber backing pad.
• Press the spindle lock button
until it locks in position.
• Tighten the threaded clamp nut
pin spanner.
• Release the spindle lock
• To remove the rubber backing pad, loosen the threaded
clamp nut 14 wih the two-pin spanner.

Prior to Operation

• Install the appropriate guard and disk or wheel. Do not use
excessively worn disks 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
accessory chart.
• Make sure the disk or wheel rotates in the direction of the
arrows on the accessory and the tool.
• Do not use cutting-off wheels for side grinding.
•
Ensure that sparks resulting from use do not create hazard e.g.
do not hit persons, or ignite flammable substances.
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. Be sure the
trigger switch is in the OFF position. An accidental start-up
can cause injury.
EnGLIsh
.
11
12
onto the spindle. The
14
14 must face towards the
5 and rotate the spindle 12
14 with the two-
.
29