DeWalt D28474 Guide D'utilisation page 13

Mounting and Using Depressed Center
Grinding Wheels and Sanding Flap Discs
MOUNTING AND REMOVING GUARD
Turn off and unplug tool before making any adjustments or
removing or installing accessories. Before reconnecting the
tool, depress and release the trigger switch to ensure that the
tool is off.
IMPORTANT INFORMATION ABOUT GUARDS
Guards must be used with all grinding
wheels, sanding flap discs, wire brushes
and wire wheels. The tool may be used with-
out a guard only when sanding with conven-
tional sanding discs. D WALT models
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D28493, D28494, D28474, D28499 are pro-
vided with a guard intended for use with
depressed center wheels (Type 27), and
hubbed grinding wheels (Type 27). The
same guard is designed for use with sand-
ing flap discs, wire brushes and wire wheels.
Grinding and cutting with wheels other than Type 27 and 29 require
different accessory guards not included with the tool. Mounting
instructions for these accessory guards are included in the acces-
sory package.
CAUTION: When using a grinding wheel with a Type 27, 28, or
29 guard, be sure that the bottom surface of the grinding wheel is
inside the the guard lip.
CAUTION : D WALT model D28497 Angle Sander may only be
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used for grinding by using appropriate accessory guard.
1. Open the guard latch (H), and align the lugs with slots on the
gear case cover. Position the guard facing backward, as
shown.
2. Push the guard down until the guard
lugs engage and rotate freely in the
groove on the gear case hub.
3. With the guard latch open, rotate the
guard into the desired working posi-
tion that provides maximum protec-
tion to the user as shown.
4. Close the guard latch to secure the
guard on the gear case. You should
be unable to rotate the guard by hand
when the latch is closed. Do not
GRINDING
operate the grinder with a loose
WHEEL
SURFACE
guard or the clamp lever in open
position.
5. To remove the guard, follow the pro-
cedure above in reverse order.
NOTE: The guard is pre-adjusted to the
GUARD
LIP
diameter of the gear case hub at the fac-
tory. If, after a period of time, the guard
becomes loose, tighten the adjusting
screw (I) with clamp in the closed posi-
tion.
CAUTION: Do not tighten the adjusting screw with the clamp
lever in open position. Undetectable damage to the guard or the
mounting hub may result.
MOUNTING AND REMOVING HUBBED WHEELS
Hubbed wheels install directly on the 5/8" — 11 threaded spindle.
1. Thread the wheel on the spindle by hand, seating the wheel
against the soft mount.
2. Depress the spindle lock button and use a wrench to tighten the
hub of the wheel.
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