ISO 15871:2019 pdf download

ISO 15871:2019 pdf download.Industrial trucks — Specifications for indicator lights for container handling and grappler arm operations
1 Scope
This document specifies requirements for indicator lights to show the status of freight-container-handling spreaders and grappler arms.
It is applicable to:
a) container-handling spreaders with twistlocks for handling unladen and/or laden freight containers;
b) grappler (bottom lift) arms for handling semi-trailers and swap bodies;
when fitted to:
— counterbalance lift trucks, with masts, as defined in ISO 5053-1:2015, 3.3;
— rough terrain trucks, with masts, as defined in ISO 5053-1:2015, 3.7;
— non-stacking low-lift straddle carriers, as defined in ISO 5053-1:2015, 3.18;
— stacking high-lift straddle carriers, as defined in ISO 5053-1:2015, 3.19;
— variable-reach trucks, as defined in ISO 5053-1:2015, 3.20;
— rough-terrain variable-reach trucks, as defined in ISO 5053-1:2015, 3.21;
— variable-reach container handlers, “reach stackers”, as defined in ISO 5053-1:2015, 3.23;
— counterbalance container handlers, as defined in ISO 5053-1:2015, 3.24.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.4 non-reflective shield
device to minimize stray light from an unrelated source that would make the indicator light simulate an unintended “on” condition
3.5 clamped
<grappler arm> with load-engaging part in full horizontal contact with the load
3.6 seated
<grappler arm> with load-engaging part in full vertical contact with the load
3.7 fully up
<grappler arm> raised to its highest position to provide clearance over the top of the load
3.8 fully down
<grappler arm> completely lowered and ready to engage the load
4 Requirements
4.1 General
To minimize the number of lights required, three conditions of the light are employed: “off”, “flashing” and “on”.
4.2 Freight-container-handling spreaders
4.2.1 General
See 4.4.1 for location of indicator lights. See Table 1 for a tabular presentation of 4.2.2 and 4.2.3.
4.2.2 Twistlocks located in the freight container
When all the twistlocks are fully located in the freight container corner pockets, orange light O shall be “on”. When the freight container is lifted, this light shall go “off”.
4.2.3 Twistlocks locked/unlocked
When all the twistlocks are fully unlocked, the red light R shall be “on”. In any intermediate position of the twistlocks, the red light R may be “flashing”. Provision of this “flashing” red light is optional. When all the twistlocks are fully locked in the freight container corner pockets, the green light G shall be “on”.