ISO 14401-2:2009 PDF

Overview

ISO 14401-2:2009 - Earth-moving machinery - Field of vision of surveillance and rear-view mirrors - Part 2: Performance criteria - specifies the performance criteria for surveillance and rear‑view mirrors fitted to ride-on earth‑moving machinery. The standard defines minimum fields of vision behind the machine to ensure adequate operator visibility during operation (forward/reverse) and while transporting on public roads. It aligns mirror testing with ISO 14401-1 and can be used together with ISO 5006 visibility requirements.

Key topics and requirements

• Field‑of‑vision classes (A, B, C, D):
  • Class A: operator must see a 10 m wide ground area centered on the machine from 30 m behind.
  • Class B: defined trapezoidal field starting 1 m behind at 1.5 m height (0.75 m width) expanding to 5 m width at ground 30 m behind.
  • Class C: similar to B but wider (1 m to 7.5 m).
  • Class D: specific to dumpers - visibility of outer tyre contact points (wheeled) or outermost track projections (crawler) within 100 mm.
• Mirror installation and position:
  • Mirrors shall minimize vibration effects and be visible through swept windscreen area or canopy openings.
  • Lateral projection limits: mirrors projecting >0.20 m and >2 m above ground should be foldable for road use.
  • If bottom of exterior mirror is