AS ISO 22915.21:2015 pdf download.Industrial trucks – Verification of stability Part 21: Order-picking trucks with operator position elevating above 1 200 mm.
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 5053, Powered industrial trucks — Terminology ISO 22915-1, Industrial trucks — Verification of stability — General
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5053 and ISO 22915-1, and the following apply.
3.1 normal operating conditions operating conditions corresponding to the truck travelling indoors on smooth, level floors of sufficient strength such as those of concrete NOTE This definition is different from the one given for normal operating conditions in ISO 22915-1:2008.
3.2 guided steering steering mode, either mechanical (e.g. guidance rails) or non-mechanical (e.g. inductive guidance, laser sensor or infrared) not controlled directly by the operator, used to steer the truck on a predetermined straight path while travelling
3.3 restricted steering operation under which the truck’s steering is controlled by the operator and the steering angle is limited to not more than ± 100 from the forward or reverse travel direction
3.4 unrestricted steering steering mode controlled by the operator with no limitation of the steering angle
4 Test conditions
4.1 General See ISO 22915-1.
4.2 Position of truck on tilt table 4.2.1 Load and drivelsteer axles The load axle and the drive/steer axle are defined by Figure 1. 4.2.2 Test I The truck shall be positioned on the tilt table so that its drive/steer axle, B—B, and load axle, C—C, are parallel to the tilt axis, X—Y, of the tilt table. See Table 1. 4.2.3 Tests 2, 3, 4 and 5 The truck shall be positioned on the tilt table with the line, M—N, parallel to the tilt axis, X—Y, of the tilt table. See Table 1.Point M is defined as follows.
a) For trucks with a single drive (steer) wheel: point M shall be the vertical projection onto the tilt table of the point of intersection between the centreline of the drive/steer axle and the centreline of the drive wheel width.
b) For trucks with a drive/steer axle in an articulating frame articulated in the centre plane of the truck: point M shall be the vertical projection onto the tilt table of the point of intersection between the lateral axis of the articulating frame and the centre plane, A—A, of the truck.
c) For trucks with dual drive (steer) wheels: point M shall be the vertical projection onto the tilt table of the point of intersection between the centreline of the drive/steer axle and the centre plane, A—A, of the truck.
d) For trucks with non-articulated, non-sprung castors: point M shall be the vertical projection onto the tilt table of the point of intersection between the centreline of the castor wheel width, with the non-sprung castor positioned with the centreline of the castor wheel axle nearer to the centre plane of the truck.
e) For trucks with non-articulated, non-sprung castors or wheels and a non-articulated drive wheel:
1) for the non-sprung castor or wheel, point M shall be the vertical projection onto the tilt table of the point of intersection between the centreline of the castor or wheel axle and the centreline of the castor wheel or drive wheel width, with the non-spwng castor or wheel being positioned with the centreline of the castor wheel axle nearer to the centre plane of the truck;
2) for the non-articulated drive wheel, point M shall be the vertical projection onto the tilt table of the point of intersection between the centreline of the drive wheel axle and the centre line of the drive wheel width.
f) For trucks with a sprung castor or wheel point: point M shall be the vertical projection onto the tilt table of the point of intersection between the centre line of the drive wheel axle and the centre line of the drive wheel width.
As shown in Table 1, point N is defined as the centre point of the area of contact between the tilt table surface and the front load wheel closest to the tilt axis, X—Y, of the tilt table.
4.3 Lift height
Lift heights for tests shall be measured from the tilt table to the upper-most point of the load-carrying surface.
5 Verification of stability
The stability shall be verified in accordance with Table 1.AS ISO 22915.21 pdf download.