Overview
ISO 3767-1:2016 - Tractors, machinery for agriculture and forestry, powered lawn and garden equipment - Symbols for operator controls and other displays - Part 1: Common symbols - standardizes graphical symbols used on controls and displays across multiple types of agricultural tractors, forestry machinery and powered lawn & garden equipment. The standard defines common symbol elements (for example oil, coolant, intake/exhaust air, pressure), rules for reproduction, colour usage, sizing and orientation, and guidance for adapting symbols as digital display icons.
Key topics and technical requirements
- Scope and applicability: Common symbols intended for tractors, agricultural and forestry machinery, and powered lawn & garden equipment (referenced classifications include ISO 3339-0, ISO 5395, ISO 6814).
- Normative references: Cross-references to ISO 7000, IEC 60417, and the ISO/IEC 80416 series for symbol creation, arrows and display adaptation.
- General symbol rules: Orientation, scaling (75 mm basic pattern corner marks), permissible minor modifications (line width, corner rounding) provided the symbol’s core elements remain unchanged, and placement near associated controls.
- Colour semantics: Standard illumination colour meanings - red for failure/urgent attention, yellow/amber for abnormal conditions, green for normal operation; blue reserved for main/high beam; use of red/blue for hot/cold in climate controls.
- Reproduction and legibility: Requirements for contrast, readability when cast/moulded without colour dependence, and consistency when grouping symbols.
- Development of new symbols: Search ISO 7000/IEC 60417 first; new symbols must follow Annex A and ISO/IEC 80416 principles and include functional descriptions.
- Digital icon adaptation: Guidance to adapt symbols to pixel-based displays while preserving the original visual impression (see ISO 80416‑4).
Practical applications and who uses it
ISO 3767-1 is essential for:
- Equipment OEMs and design engineers creating controls, dashboards and HMIs for tractors, forestry machines and lawn equipment.
- HMI/UI designers and software developers implementing reconfigurable displays and digital icons.
- Safety engineers and technical writers ensuring consistent operator-facing information and cross-language communication.
- Regulatory bodies and conformity assessors referencing standardized symbols for compliance and user safety.
Benefits include improved operator comprehension, reduced training needs, international harmonization, and safer machine operation.
Related standards
Keywords: ISO 3767-1:2016, symbols for operator controls, agricultural tractors, forestry machinery, powered lawn and garden equipment, graphical symbols, digital display icons, ISO 7000, IEC 60417.
Open preview (PDF)Tractors, machinery for agriculture and forestry, powered lawn and garden equipment — Symbols for operator controls and other displays — Part 1: Common symbols
