Laser Extraction Repairs and LEV Retesting

When testing identifies a problem that servicing alone cannot solve

An extraction system can be running while still having faults that need attention. In this laser-cutting project, an initial LEV examination recorded an unsatisfactory assessment. The findings helped define the remedial work, followed by a further examination after the work.

What the initial examination found

During the initial assessment, the extraction was not effectively controlling fumes from the laser-cutting process. The report also recorded leakage at multiple spiral-ductwork joints, a loose connection at the extraction unit and inadequate ductwork support. Some joints had been taped in an attempt to reduce leakage.

The inspection identified incorrectly fitted filters, including a visible gap that could allow dust bypass. Filters and a smoke alarm were replaced during the initial visit, and cleaning settings were adjusted. These servicing actions did not change the report’s overall unsatisfactory assessment.

Attending to the extraction unit does not automatically resolve problems elsewhere in the ductwork system.

The remedial work

Premier LEV carried out the work as part of a project delivered through an equipment supplier. The remedial scope included replacing the existing spiral ductwork with clip-together ductwork and replacing the poor supports.

The work addressed physical installation issues identified during the earlier visit. A follow-up LEV examination provided a separate record of the system’s assessed performance after the remedial work.

The recorded outcome

The initial report recorded an unsatisfactory assessment. The laser was operating during the subsequent retest, and the follow-up report recorded a satisfactory assessment.

These are the outcomes recorded in the project reports. They should be understood within the scope and limitations of each examination; they are not a claim that all workplace exposure risks were eliminated.