DeWalt DWE4377 Instruction Manual page 39

Flanges and Wheels
Mounting Non-Hubbed Wheels
(Fig. A, C, D)

WARNING: Failure to properly seat the flanges and/or
wheel could result in serious injury (or damage to the
tool or wheel).

CAUTION: Included flanges must be used with Type
27 grinding wheels and Type 41/42 cutting wheels.
See the Grinding and Cutting accessory Chart for
more information.

WARNING: A closed, two-sided cutting wheel guard
is required when using abrasive cutting wheels or
diamond coated cutting wheels.

WARNING: Use of a damaged flange or guard or
fail ure to use proper flange and guard can re sult in
injury due to wheel breakage and wheel contact. See
the Grinding and Cutting accessory Chart for
more information.
1. Place the tool on a table, guard up.
2. Install the unthreaded backing flange
with the raised centre (pilot) facing the wheel
3. Place wheel against the unthreaded backing flange,
centering the wheel on the raised centre (pilot) of the
unthreaded backing flange.
4. While depressing the spindle lock button
the hex depressions facing away from the wheel, thread
the threaded locking flange
lugs engage the two slots
14
5. While depressing the spindle lock button, tighten the
threaded locking flange using a hex wrench.
6. To remove the wheel, depress the spindle lock button
and loosen the threaded locking flange.
Mounting Sanding Backing Pads
(Fig. A, D, E)
NoTE: Use of a guard with sanding discs that use backing
pads, often called fiber resin discs, is not required. Since a
guard is not required for these accessories, the guard may or
may not fit correctly if used.

WARNING: Failure to properly seat the flange/ clamp
nut/ wheel could result in serious injury (or damage to
the tool or wheel).

WARNING: Proper guard must be reinstalled for
grinding wheel, cutting wheel, sanding flap disc,
wire brush or wire wheel applications after sanding
applications are complete.
1. Place or appropriately thread backing pad
the spindle .
1
2. Place the sanding disc
3. While depressing spindle lock button
nut 19 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
pad and sanding pad while depressing the spindle
lock button.
on spindle
3
16
2 and with
4 on spindle so that the
in the spindle.
15
17 on
18 on the backing pad.
2 , thread clamp
16 , grasp and turn the backing
Mounting Wire Cup Brushes and
Wire Wheels (Fig. A)

WARNING: Failure to properly seat the flange/ clamp
nut/ wheel could result in serious injury (or damage to
the tool or wheel).

CAUTION: To reduce the risk of personal injury,
wear work gloves when handling wire brushes
and wheels. They can become sharp.

CAUTION: To reduce the risk of damage to the
tool, 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.
Wire cup brushes or wire wheels install directly on the
threaded spindle without the use of flanges. Use only wire
brushes or wheels provided with a M14 threaded hub. These
accessories are available at extra cost from your local dealer
or authorised service centre.
1. Place the tool on a table, guard up.
2. Thread the wheel on the spindle by hand.
1
3. Depress spindle lock button
.
hub of the wire wheel or brush to tighten the wheel.
4. To remove the wheel, reverse the above procedure.
NOTICE: To reduce the risk of damage to the tool,
properly seat the wheel hub before turning the tool on.
Prior to Operation
• Install the guard and appropriate disc or wheel. Do not
use excessively worn discs or wheels.
• 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.
• 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.
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
and use a wrench on the
2
37