DeWalt DCG412 Instruction Manual page 73

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.
WARNING: A closed, two-sided cutting wheel guard is re quired when
using cutting wheels. Fail ure to use proper flange and guard can re sult
in injury resulting from wheel breakage and wheel contact. See pages 63
and 64 for more information.
MOUNTING CLOSED (TYPE 1) GUARD (FIG. 17, 18)
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.
1. Open the guard latch (V), and align the
lugs (T) on the guard with the slots on
the hub (U). This will align the lugs with
slots on the gear case cover. Position
the guard facing backward.
2. Push the guard down until the guard lug
engages and rotates freely in the groove
on the gear case hub.
3. Rotate guard (I) 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 clamp lever in open
position.
5. To remove the guard, open the guard latch, rotate the guard so that
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 (W) with the clamp lever 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 clamp lever in open position. Undetectable damage
to guard or mounting hub may result.
FIG. 17
MOUNTING TYPE 1 OR TYPE 41 CUTTING WHEELS
U
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.
CAUTION: Matching diameter backing flange and threaded locking
flange (included with tool) must be used for Type 1 and Type 41 cutting
T
wheels.
V
1. Place the unthreaded backing flange on spindle with the raised
2. Place the wheel on the backing flange, centering the wheel on the
I
3. Install the threaded locking flange with the raised section (pilot)
4. Depress the spindle lock button and tighten threaded locking flange
FIG. 18
5. To remove the wheel, depress the spindle lock button and loosen the
W
USING TYPE 1 OR TYPE 41 CUTTING WHEELS
WARNING: Do not use edge grinding/cutting wheels for surface
grinding applications because these wheels are not designed for side
pressures encountered with surface grinding. Wheel breakage and injury
may result.
1. Allow tool to reach full speed before touching tool to work surface.
71
the arrows are aligned and pull up on the guard.
section (pilot) facing up. The raised section (pilot) on the backing
flange will be against the wheel when the wheel is installed.
raised section (pilot).
facing away from the wheel.
with a wrench.
threaded locking flange with a wrench.