AS ISO 22915.2:2021 Industrial trucks一Verification of stability Part 2: Counterbalanced trucks with mast.
This document specifies the tests for verifying the stability of counterbalanced trucks with masts, equipped with fork arms or with load handling attachments. It is not applicable to those trucks designed for handling freight containers, dealt with by ISO 229 15-9.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 5053-1, Industrial trucks — Terminology and classification — Part 1: Types of industrial trucks 150 2 2915-1, Industrial trucks — Verification of stability — Part 1: General
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 505 3-1 and ISO 229 15-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www .org/obp
— IEC Electropedia: available at http://www.electropedia.org/
4 Test conditions
See ISO 22915-1.
4.2 Position of trucks and tilt table
4.2.1 Load and steer axles
The load and steer axles are defined by Figure 1.
4.2.2 Test 1 and 2
The truck shall be positioned on the tilt table so that its load axle, C—C, is parallel to the tilt axis, X—Y, of the tilt table. See Table 1.
The truck shall be positioned on the tilt table in a turning position with the line, M—N, parallel to the tilt axis, X—Y, of the tilt table.
As shown in Table 1, the steered wheel nearest to the tilt axis shall be parallel to X—Y. Point M is defined as follows.
a) For trucks having an articulating steer axle: point M shall be the projection on the tilt table of the intersection of the longitudinal centre-plane, A—A, of the truck with the axis of this axle.
b) For trucks steered by a single wheel: point M shall be the centre point of the tread contact area between the steered wheel and the tilt table surface.
c) For trucks steered by twin wheels: point M shall be the centre point of the tread contact area between the steered wheel closest to the tilt axis, X—Y, of the tilt table and the tilt-table surface.
d) For trucks having wheels for steering not connected by a common axle, but that are arranged to articulate approximately about the longitudinal centre-plane of the truck: point M shall be the projection on the tilt table of the intersection of the longitudinal centre-plane of the truck, A—A, with the steer axle B—B connecting the vertical turning axis of the steer wheels.
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 load wheel nearest to the tilt axis.AS ISO 22915.2 pdf download.