Goff 2460, Руководство по эксплуатации и обслуживанию

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INSPECTION OF THE WEARING PARTS
1 . Open the manually operated disconnect at the control panel and tag switch so that the
machine cannot be energized. Lock-out and tag-out machine before proceeding.
2. Remove the blast housing cover by loosening the nuts on each end of the cover. Swing the
fasteners clear and remove the cover.
3. Remove the top liner allowing access to the blast wheel assembly.
4. Rotate the blades by hand and inspect them for wear. Vibration of the blast wheel when
operating is usually an indication of excessive blade wear or a broken blade. When vibration
is excessive, all blades and springs should be removed and replaced. When the blades are
deeply grooved or worn to half their original thickness they should be replaced. Never
replace less than a full set of blades and springs. The blades are carefully weighed and
packaged in matched sets and should not be separated.
If
the blades will not remain on the
blade blocks when rotating by hand the blade blocks may be excessively worn and should be
replaced.
5. Visually inspect the control cage opening. If the bevel on the sides of the opening is worn to
half of its original width, the control cage should be replaced.
6. While rotating the blades by hand, it is possible to see the leading edge of the impeller
fingers. If the fingers are grooved or worn to half their original size, the impeller should be
replaced.
7.
The feed spout wears very slowly so the inspection of this part usually involves checking for
cracks or other physical abuse.
8. The blast wheel liners should be replaced when they become worn to half their original
thickness.
If
the liners are allowed to wear through, serious damage could occur to the blast
wheel housing.
NOTE: The wearing parts of the blast wheel should be inspected daily. This daily
inspection can be done without any disassembly with the aid of a flashlight. Shine the flashlight up
through the bottom of the blast wheel assembly and visually inspect the blades, blade blocks,
impeller and control cage. The liners can be inspected visually or by feeling the surface of the
various liners.
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