DeWalt DWE4557 Instruction Manual page 70

FIG. 18
L
K
M
2. Push the guard down until the guard lug engages and rotates
freely in the groove on the gear case hub.
3. Rotate guard (F) into desired working position. The guard body
should be positioned between the spindle and the operator to
provide maximum operator protection.
4. Close the guard latch to secure the guard on the gear case cover.
You should be unable to rotate the guard by hand when the latch
is in closed position. Do not operate grinder with a loose guard or
with the guard latch in open position.
5. To remove the guard, follow the procedure above in reverse order.
NOTE: The guard is pre-adjusted to the
dia met er of the gear case hub at the factory.
If, after a period of time, the guard becomes
loose, tighten the adjusting screw (N) with
the guard latch in the closed position with
guard installed on the tool.
NOTICE: To reduce the risk of damage
to the tool, do not tighten adjusting screw with guard latch in open
position. Undetectable damage to guard or mounting hub may result.
MOUNTING CUTTING WHEELS (FIG. 20)
CAUTION: Matching diameter threaded backing flange and clamp
nut (included with tool) must be used for cutting wheels.
1. Install wheel backing flange, aligning flats on spindle (T) with flats
on backing flange (O).
F
2. Place the wheel on the backing flange, centering the wheel on the
backing flange pilot.
3. Install the clamp nut, ensuring that the wheel remains centered on
the backing flange.
4. Depress the spindle lock button and tighten clamp nut with
wrench.
5. Reverse the above procedure to remove the wheel.
USING CUTTING WHEELS
WARNING: Do not use edge grinding/cutting wheels for surface
FIG. 19
grinding applications because these wheels are not designed for side
N
pressures encountered with surface grinding. Wheel breakage and
injury may result.
1. Allow tool to reach full speed before touching tool to work
surface.
2. Apply minimum pressure to work surface, allowing tool to operate
at high speed. Cutting rate is greatest when the tool operates at
high speed.
3. Once a cut is begun and a notch is established in the workpiece,
do not change the angle of the cut. Changing the angle will cause
the wheel to bend and may cause wheel breakage.
4. Remove the tool from work surface before turning tool off. Allow
the tool to stop rotating before setting it down.
70
FIG. 20
T
O