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Truing/Dressing
Wheel
Before using the aluminum-oxide grinding wheel
for the first time, you must "true" it to the machine.
This process makes the face of the wheel con-
centric to the spindle axis, minimizing potential
vibration from the wheel being out-of-balance.
Failure to do this will result in tool chatter and a
poor finish on tooling.
Over time, the aluminum-oxide grinding wheel will
gradually "load up" and begin to cut less effective-
ly. Often the wheel will begin to look dark or dirty
when this has begun to occur. The solution is to
"dress" the wheel by using the diamond dressing
tool to grind a new edge on the face of the wheel.
Performing light, frequent dressings will make the
wheel last longer and perform better.
Tools Needed
Hex Wrench 2.5mm ........................................... 1
To true/dress the grinding wheel:
1.
Install aluminum-oxide grinding wheel (see
Installing/Removing Wheel on Page 20, if
necessary).
2.
Rotate tool holder back and away from grind-
ing wheel.
3.
Swing diamond dressing tool down toward
grinding wheel, then loosen set screw that
secures tool in rotating arm (see Figure 12).
Dressing Tool
Figure 12. Dressing tool positioned against face
of grinding wheel for truing (or dressing).
Model T10814 (Mfd. Since 5/15)
4.
5.
6.
7.
8.
9.
10. Repeat Steps 7–8 two or three times, until
11. Use spindle dial (Figure 13) to move grind-
Figure 13. Spindle dial used for positioning
12. Repeat Steps 7–8 one more time.
This process creates substantial amounts
of dust. Breathing airborne dust on a regu-
lar basis can result in permanent respira-
Set Screw
tory illness. Reduce your risk by wearing
a respirator and capturing the dust with a
dust collection system.
Position tip of diamond dressing tool against
face of grinding wheel, then tighten set
screw. Tip of dressing tool should just touch
face of wheel.
Swing dressing tool up and away from grind-
ing wheel.
Turn tool grinder ON.
Swing dressing tool down toward grinding
wheel.
Push dressing tool slowly across face of
wheel.
Pull dressing tool back across face of grind-
ing wheel.
diamond tool passes cleanly across face of
wheel with no contact, then swing dressing
tool back above grinding wheel.
ing wheel 0.001" to the right.
Spindle
Dial
wheel left or right.
-21-
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