DeWalt D28474 Manual De Instrucciones página 33

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 position
that provides maximum protection 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
operate the grinder with a loose guard or the clamp lever in open
position.
5. To remove the guard, follow the procedure above in reverse order.
NOTE: The guard is pre-adjusted to the
diameter of the gear case hub at the
factory. If, after a period of time, the guard
becomes loose, tighten the adjusting screw
(I) with clamp in the closed position.
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 or M14 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
H
hub of the wheel.
3. Reverse the above procedure to remove the wheel.
CAUTION: Failure to properly seat the wheel against the soft
mount before turning the tool on may result in damage to the tool or
the wheel.
MOUNTING NON-HUBBED WHEELS
Depressed center, Type 27 grinding wheels must be used with
available accessory flanges. See the chart on pages 27–29 of this
manual for more information.
1. Install the metal backing flange (J) on spindle
(E) against the soft mount.
2. Place wheel against the backing flange,
centering the wheel on the backing flange
pilot.
3. While depressing the spindle lock button,
thread the clamp nut (K) on spindle, piloting
the raised hub on clamp nut in the center of
grinding wheel.
4. Tighten the clamp nut with a wrench.
5. Reverse the above procedure to remove
the wheel.
SURFACE GRINDING WITH GRINDING WHEELS
I
1. Allow the tool to reach full speed before touching tool to work
surface.
2. Apply minimum pressure to work surface, to allow the tool to
operate at high speed.
3. Maintain a 20˚ to 30˚ angle between the tool and work surface.
4. Continuously move the tool in a forward
and back motion to avoid creating gouges
in the work surface.
31
J
E
K
20˚- 30˚