DeWalt D28114 Guide D'utilisation page 20

USING WIRE CUP BRUSHES AND WIRE WHEELS
(FIG. 16, 17)
Wire wheels and brushes can be used for removing rust, scale and
paint, and for smoothing irregular surfaces.
1. Allow the tool to reach full speed before touching the tool to the
work surface.
2. Apply minimum pressure to work
surface, allowing the tool to operate
at high speed. Material removal rate
is greatest when the tool operates at
high speed.
3. Maintain a 5˚ to 10˚ angle between
the tool and work surface for wire
cup brushes.
4. Maintain contact between the edge of the wheel and the work
surface with wire wheels.
5. Continuously move the tool in a forward and
backward motion to avoid creating gouges
in the work surface. Allowing the tool to rest
on the work surface without moving, or
moving the tool in a circular motion causes
burning and swirling marks on the work
surface.
6. Remove the tool from the work surface before turning the tool off.
Allow the tool to stop rotating before setting it down.
CAUTION: Use extra care when working over an edge, as a
sudden sharp movement of grinder may be experienced.
Mounting and Using Cutting
(Type 1) Wheels (Fig. 1)
Cutting wheels include diamond wheels and abrasive discs. Abrasive
cutting wheels for metal and concrete use are available. Diamond
blades for concrete cutting can also be used.
NOTE: All grinders that use Type 1 wheels use the quick-change
FIG. 16
backing flange (G1).
with this tool (D28140, D28144, D28144N ONLY) and is re quired
when using cutting wheels. Fail ure to use proper flange and guard
5˚-10˚
can re sult in injury resulting from wheel breakage and wheel
contact. See page 10 for more information.
MOUNTING CLOSED (TYPE 1) GUARD (FIG. 18, 19)
1. Open the guard latch (M). Align the lugs (N) on the guard with the
FIG. 17
2. Push the guard down until the guard lug engages and rotates
18
WARNING: A closed, 2-sided cutting wheel guard is not included
slots (O) on the gear case.
FIG. 18
O
N
M
freely in the groove on the gear case hub.
I