DeWalt XR LI-ION DCG409 Original Instructions Manual page 16

English
2. While holding the guard release lever open, align the
lugs on the guard with the slots
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3. Keeping the guard release lever open, push the guard down
until the guard lugs engage and rotate them in the groove
on the gear case hub. Release the guard release lever.
4. With the spindle facing the operator, rotate the guard
clockwise into the desired working position. Press and
hold the guard release lever
anti‑clockwise direction.
nOTE: The guard body should be positioned between
the spindle and the operator to provide maximum
operator protection.
The guard release lever should snap into one of the
alignment holes 15 on the guard collar. This ensures that
the guard is secure.
5. To remove the guard, follow steps 1–3 of these instructions
in reverse.
Flanges and Wheels
Mounting Non‑Hubbed Wheels (Fig. G)

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

CAUTION: Included flanges must be used with depressed
centre Type 27 and Type 42 grinding wheels and
Type 41 cutting wheels. See the Accessory Chart for
more information.

WARNING: A closed, two‑sided cutting wheel guard is
re quired when using 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 Accessory
Chart for more information.
1. Place the tool on a table, guard up.
2. Install the backing flange
centre (pilot) facing the wheel. Press the backing flange
into place.
3. Place wheel against the backing flange, centreing the
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wheel on the raised centre (pilot) of the backing flange.
4. While depressing the spindle lock button and with the hex
depressions facing away from the wheel, thread the locking
flange on spindle so that the lugs engage the two slots
7
in the spindle.
5. While depressing the spindle lock button, tighten the
locking flange by hand or using the wrench supplied.
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(Only use a locking flange if it is in perfect condition.) Refer
to Accessory Chart to see flange details.
6. To remove the wheel, reverse the above procedure.
Mounting Sanding Backing Pads (Fig. H)
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.
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on the gear case.
14
9 to rotate the guard in the
6 on spindle 4 with the raised

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.
2. Place the sanding disc
3. While depressing spindle lock
spindle, piloting the raised hub on the clamp nut into the
centre 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.
Mounting and Removing Hubbed Wheels (Fig. H)
Hubbed wheels install directly on the threaded spindle. Thread
of accessory must match thread of spindle.
1. Remove backing flange by pulling away from tool.
2. Thread the wheel on the spindle
3. Depress the spindle lock button
tighten the hub of the wheel.
4. Reverse the above procedure to remove the wheel.
NOTICE: Failure to properly seat the wheel before turning
the tool on may result in damage to the tool or the wheel.
Mounting Wire Cup Brushes and Wire Wheels
(Fig. I)

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 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.
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.
17 on
on the backing pad
18 17
, thread clamp nut
3
by hand.
4
and use a wrench to
3
3 and use a wrench on the
.
on
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