National Flooring Equipment 3395, Руководство по обслуживанию

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Troubleshooting Guide
8
GENERAL ERRORS
Problem Cause Solution
Unusual vibrations. Uneven wear of the blast wheel. Replace blast wheel set.
Unbalance due to broken parts or blades. Check separator and all other sections of the
machine. Remove all broken parts.
Wheel hub worn out. Replace wheel hub.
Unusual noise. Low clearances or bad adjustments of turning
parts.
Check parts adjustments (blast wheel and
control cage).
Loose or lost screws. Replace and/or tighten necessary bolts and/
or screws.
Sqeaking wheels. Apply oil or grease, or replace if worn.
Motor bearings worn out. Replace motor.
Reduced or no performance. Insufficient flow of abrasive to the blast
wheel.
Clean wire mesh.
Not enough abrasive in storage hopper. Fill up abrasive.
Loose valve lever. Tighten set screw.
Valve adjustment. Adjust valve lever and valve disk.
Too much dust in hopper. Check all seals and dust hose and that the
dust collector is functioning properly.
Blast wheel or control cage is worn out. Replace worn items.
Valve does not close properly and abrasive is
blocking the blast wheel when switched on.
Close valve and stop motor. Readjust valve.
Too much abrasive admitted when switched
on.
Ensure motor reaches maximum speed
before opening the valve.
Feed motion is too fast. Reduce speed.
Losing abrasive. Bad seals. Check base seals. Readjust and replace
when worn.
Elevation adjustment of magnets. Check elevation. Should not be higher than
5/16” (8 mm).
Magnets lost field. Replace magnets.
Dust collector removing shot. Contact NFE Customer Service for proper
selection of dust collector.
Dumping abrasive. Poor abrasive quality. Use quality abrasives.
Blast wheel worn. Replace blast wheel.
Worn seals. Replace seals.
Incorrect elevation of magnets. Re-adjust elevation of magnets and adjust
seals.
Too much dust in shot hopper. Check dust collector filter.
Incorrect orientation of control cage. Re-adjust orientation of control cage.
Too much dust or other particles present. Insufficient air flow towards dust collector. Check rated performance of the filter unit
connected.
Check all seals.
Check dust hoses.
Check differential pressure and replace filter
elements if pressure is too high.