Goff 2460, Operation And Maintenance Manual

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BLADES
The blades used in Goff airless blast wheel have been weighed and matched at the factory to
insure minimum vibration of the blast wheel assembly. The blades should always be replaced in
matched sets. Partial replacement will result in excessive vibration.
The blades should be checked on a regular basis for wear and breakage. Although a set of
blades may be wearing evenly and may not be causing any abnormal vibrations, they should not be
allowed to wear all the way through. Holes in the blades will allow abrasive to enter the area in back
of the blades causing wear on internal blast wheel parts. This will cause the blast wheel to vibrate as
well as disrupt the quality of blast. If a new set of blades will not remain on the blade blocks when
rotated by hand, the blade blocks are worn and will require replacement.
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OLD BLADE
N E\1\1 BLADE
M0036
2-11