N

Acoustic insulation fitted inside engine and fan compartments. Helps the vehicle meet UK Stage V noise standards.

Record sheet documenting daily noise readings from sweeping operations. Demonstrates compliance with local authority noise restrictions.

Personal badge worn by operators logging noise exposure over time. Supports occupational-health record keeping.

Portable meter measuring ambient noise near worksites. Provides documentation to prove compliance with local environmental limits.

Acoustically lined cowl around the fan outlet reducing overall sound levels. A key modification for sweepers operating in residential streets.

After-market kit comprising acoustic foam seals and mufflers. Reduces external sound levels for night-sweeping approval.

Grading designation (e.g., 6mm, 10mm) for surface dressing chippings.

Hall-effect sensor reading wheel or shaft speed. Supplies input to controllers for rate-of-spread calculations.

Drops chassis RPM at stops while keeping sweeper auxiliary systems active.

Document detailing light placement and output for overnight works. Ensures compliance with site-safety regulations.