DeWalt DCG412 Guide D'utilisation page 20

WARNING: Allow the tool to reach full speed before touching
tool to the work surface. Lift the tool from the work surface before
turning the tool off.
SPINDLE LOCK BUTTON (FIG. 2)
The spindle lock button (C) is provided to prevent the spindle from
rotating when installing or removing wheels. Operate the spindle lock
button only when the tool is turned off, the battery is removed, and
the wheel has come to a complete stop.
NOTICE: To reduce the risk of damage to the tool, do not engage
the spindle lock button while the tool is operating. Damage to
the tool will result and attached accessory may spin off possibly
resulting in injury.
To engage the lock, depress the spindle lock button (C) and rotate the
spindle until you are unable to rotate the spindle further.
Mounting and Using Depressed Center
Grinding Wheels and Sanding Flap Discs
CAUTION: Always use the correct guard per the instructions
in this manual.
MOUNTING AND REMOVING HUBBED WHEELS
WARNING: To reduce the risk of serious personal injury,
turn tool off and remove the battery pack before making any
adjustments or removing/installing attachments or accessories.
An accidental start-up can cause injury.
Hubbed wheels install directly on the 5/8"-11 threaded spindle.
1. Thread the wheel on the spindle by hand.
2. Depress the spindle lock button and use a wrench to tighten the
hub of the wheel.
3. 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 NON-HUBBED WHEELS (FIG. 2, 9–10)
WARNING: To reduce the risk of serious personal injury,
turn tool off and remove the battery pack before making any
adjustments or removing/installing attachments or accessories.
An accidental start-up can cause injury.
Depressed center Type 27 and Type 42 grinding wheels must be
used with included flanges. See pages 14 and 15 of this manual
for more information.
1. Install the unthreaded backing flange (G)
on spindle (D) with the raised section
(pilot) against the wheel.
2. Place wheel against the backing flange,
centering the wheel on the raised section
(pilot) of the backing flange.
3. While depressing the spindle lock
button (C), thread the locking flange (H) on
spindle. If the wheel you are installing is
more than 1/8" (3.17 mm) thick, place the
threaded locking flange on the spindle so
that the raised section (pilot) fits into the
center of the wheel. If the wheel you are
installing is 1/8" (3.17 mm) thick or less,
place the threaded locking flange on the
spindle so that the raised section (pilot) is
not against the wheel. Refer to Figure 10A and 10B.
4. While depressing the spindle lock button, tighten the threaded
locking flange with a wrench.
5. To remove the wheel, depress the spindle lock button and loosen
the threaded locking flange with a wrench.
18
FIG. 9
G
D
H