Overview
ISO 6405-1:2017/Amd 1:2022 is an important amendment to the international standard focusing on earth-moving machinery. This document extends Part 1 of the ISO 6405 series, which specifies common symbols for operator controls and other displays. The amendment introduces additional standardized symbols designed to improve clarity and safety for operators using heavy machinery.
Developed by ISO Technical Committee ISO/TC 127, Subcommittee SC 3, which specializes in machine characteristics, electrical and electronic systems, and operation, this 2022 update supports enhanced communication through graphical symbols. These symbols are crucial for universal understanding, reducing operator error, and ensuring that various earth-moving machines are operated more safely and efficiently worldwide.
Key Topics
-
New Graphical Symbols: The amendment adds multiple new symbols to represent a wide range of controls and functions commonly found in earth-moving equipment:
- Toggle/Cycle Control – Identifies controls that switch between two functions.
- Diagnostic Port – Marks locations for diagnostic equipment connection, with indication for in-use status.
- Reconfigurable Control – Symbolizes controls programmable for multiple machine functions or parameters.
- Video Cameras – Differentiates controls and operational status for monochrome and color video cameras.
- Headphones Connection – Indicates controls or connection points for headphones.
- Engine Starter Shut-Off – Marks controls that interrupt power to the engine starter motor.
- Electrical Transmission Preheat – Identifies controls for preheating transmissions to aid cold starts.
- Hydraulic Motor – Represents the hydraulic motor or informs about its operational details.
- Sunshade Controls – Includes symbols for controls opening, closing, or indicating the status of window sunshades.
- Heated Seatback – Marks controls for warming the seatback for operator comfort.
- Seat Sensor and Lap Bar Interlock – Alerts to seat sensor malfunctions and indicates lap bar interlock status.
-
Standardization Scope: These symbols cover generic controls and displays without specifying component brands or proprietary functions, allowing broad application across earth-moving machinery types.
-
Symbol Orientation and Usage: Some symbols can be oriented differently to match actual equipment layouts, improving operator intuitiveness.
Applications
- Operator Interfaces: Enhances control panels and instrument clusters in excavators, loaders, bulldozers, and other earth-moving machines by providing universally recognized icons.
- Safety and Maintenance: Diagnostic port symbols facilitate easier maintenance checks, reducing machine downtime.
- Customization & Flexibility: Reconfigurable control symbols support modern adaptable machinery functionalities, improving versatility.
- Operator Comfort and Ergonomics: Heating and sunshade symbols promote better operator environment management.
- Visual Systems Integration: Video camera symbols help clearly identify camera control points, especially in machines equipped with rear or multiple camera views.
- Training and Documentation: Clear symbolic communication aids in operator training programs and technical manuals worldwide.
Related Standards
- ISO 6405 Series: ISO 6405-1 forms the first part of a broader series addressing symbols for earth-moving machinery controls. Users may refer to other parts for more specific symbols and related guidelines.
- ISO/IEC 7000 (Graphical Symbols): Many new symbols added are drawn from or related to this catalog of graphical symbols, which provides international consistency for symbol usage across industries.
- IEC 60417: The amendment incorporates symbols registered under this standard, which defines graphical symbols for electrical device controls.
- ISO/IEC Directives: The development and maintenance of this standard follow the directives ensuring clear, stable, and globally harmonized standards documentation.
By adopting ISO 6405-1:2017/Amd 1:2022, manufacturers and operators of earth-moving machinery ensure safer, more efficient machine operation, streamlined maintenance processes, and optimal communication through universal graphical symbols. This leads to improved productivity and reduced operational risks across global construction, mining, and civil engineering sectors.
Open preview (PDF)Earth-moving machinery — Symbols for operator controls and other displays — Part 1: Common symbols — Amendment 1: Additional symbols
