DeWalt D28065 Instruction Manual page 15

2.Place w heel against thebacking flange, centering thewheel on
theraised s ection (pilot) ofthebacking flange.
3.While depressing thespindle lockbutton, t hread theclamp
nut (H)on spindle. If thewheel y ouareinstalling is more
than1/8"(3.17mm)thick,place the threaded c lampnut
on thespindle s o thattheraised section ( pilot) f itsintothe
center o f thewheel. I f thewheel y ouareinstalling is 1/8"
(3.17 mm) t hick or less, p lace thethreaded clamp nutonthe
spindle sothat t heraised s ection ( pilot) isnotagainst thewheel.
4.While d epressing thespindle lock button, FIG. 8
tighten the clamp n ut w ith awrench. 1/4"wheels
5.To remove the wheel, depress the spindle (6.35 mm)
lockbutton andloosen the threaded
clamp n ut w ithawrench, threaded clamp nut
NOTE" If thewheel spins aftertheclamp
nutistightened, check t heorientation ofthe
threaded clamp n ut. I fathin wheel isinstalled
withthepilotontheclamp nutagainst the Quick-Change
wheel, itwill s pinbecause theheight ofthe backing flange
pilot p revents theclamp n ut f rom holding the 1/8"wheels
wheel. (3.17 mm)
SURFACE GRINDING WITH GRINDING
WHEELS (FIG. 9) threaded clamp nut
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. Maintain a 20 ° to 30 ° angle between the tool and work surface.
Quick-Change
backing flange
14
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 FIG.9
turning tool off. Allow the tool to stop
rotating before laying it down.
EDGE GRINDING WITH GRINDING 20°-30°
WHEELS (FIG. 10)
i_CAUTION: Wheels used for cutting and
edge grinding may break if they bend or twist while the tool is being
used to do cut-off work or deep grinding. To reduce the risk of serious
injury, limit the use of these wheels with a standard Type 27 guard to
shallow cutting and notching [less than 1/2" (12. 7 mm) in depth]. The
open side of the guard must be positioned away from the operator. For
deeper cutting with a Type 1 cut-off wheel, use a closed, Type 1guard.
See the chart on page 10 for more information. Type 1 guards are
available at extra cost from your local dealer or authorized service
center. FIG.10
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.