Porter-Cable PCEG011 Instruction Manual page 11

G
13
H
1/4 inch wheels
I
1/8 inch or less wheels
SURFACE GRINDING WITH
GRINDING WHEELS
1. Allow the tool to reach full speed before
touching the tool to the work surface.
2. Apply minimum pressure to the work
surface, allowing the tool to operate at
high speed. Grinding rate is greatest
when the tool operates at high speed.
3. Figure J - 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.
5. Remove the tool from work surface
before turning tool off. Allow the tool to
stop rotating before laying it down.
Threaded
locking
flange
Backing flange
Threaded
locking
flange
Backing flange
11
J
EDGE GRINDING WITH GRINDING
WHEELS
Wheels used for cutting and edge grinding
may break or kick back if they bend or
twist while the tool is being used to do cut-
off work or deep grinding. Edge grinding/
cutting with a Type 27 wheel must be limited
to shallow cutting and notching --less than
1/2" (13 mm) in depth when the wheel is
new. Reduce the depth of cutting/notching
equal to the reduction of the wheel radius
as it wears down. Refer to the page 9 for
more information. Edge grinding/cutting with
a Type 1/41 wheel requires usage of a Type
1/41 guard.
1. Allow the tool to reach full speed
before touching the tool to the
work surface.
2. Apply minimum pressure to the work
surface, allowing the tool to operate at
high speed. Grinding rate is greatest
when the tool operates at high speed.
3. Position yourself so that the open-
underside of the wheel is facing away
from you.
4. 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. Edge
grinding wheels are not designed
to withstand side pressures caused
by bending.
5. Remove the tool from the work surface
before turning the tool off. Allow the tool
to stop rotating before laying it down.
Do not use edge
WARNING:
grinding/cutting wheels for surface
grinding applications if the wheel label
has forbidden such use because these
wheels are not designed for side
pressures encountered with surface
grinding. Wheel breakage and serious
personal injury may result.
20˚-30˚