AS ISO 23727:2021 Earth-moving machinery一Wheeled loader coupler for attachments.
AS ISO 23727 provides for the interchangeability of attachments on wheeled loaders by establishing common dimensions and clearances for a coupler. It is applicable to wheeled loaders as defined in ISO 6165 with an operating mass of between 8 000 kg and 17 500 kg. Alternative coupler designs and dimensions are permitted, but might not provide broad interchangeability of attachments.
This International Standard is not intended for, but may be applicable to, other wheeled loaders, skid steer loaders or backhoe loaders if interchangeability of common attachments is desired. It does not require the fitting of a coupler and attachments can be directly mounted to the lifting linkage without the use of one.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 6165, Earth-moving machinery — Basic types — Identification and terms and definitions
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
assembly of components (bucket, fork, etc.) that can be mounted onto the lifting linkage coupler of a
wheeled loader
See Figure 1.
equipment installed at the end of the lifting linkage for mounting various attachments using a
common interface
See Figure 1.
lifting linkage
equipment on the front of a wheeled loader consisting of lifting arms and bucket linkage arms See Figure 1.
operating mass
mass of the base machine, with equipment and empty attachment in the most usual configuration as specified by the manufacturer, and with the operator (75 kg), full fuel tank and all fluid systems (i.e. hydraulic oil, transmission oil, engine oil, engine coolant) at the levels specified by the manufacturer and, when applicable, with sprinkler water tank(s) half full
Note I to entry: The mass of an operator is not included for non-riding machines.
Note 2 to entry: Ballast mass included at delivery can be included if specified by the manufacturer.
[SOURCE: ISO 6016:2008]
coupler maximum load rating
maximum vertical lift capacity generated at a point 800 mm horizontal in front of the locking pin of the coupler, used to define the coupler rating by the coupler manufacturer for the selection of compatible attachments
See Figure 2.AS ISO 23727 pdf download.