GB/T 26949.4-2022 PDF in English
GB/T 26949.4-2022 (GB/T26949.4-2022, GBT 26949.4-2022, GBT26949.4-2022)
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Industrial trucks - Verification of stability - Part 4: Pallet stackers, double stackers and order-picking trucks with operator position elevating up to and including 1 200mm lift height
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Standards related to: GB/T 26949.4-2022
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GB/T 26949.4-2022: PDF in English (GBT 26949.4-2022) GB/T 26949.4-2022
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 53.060
CCS J 83
GB/T 26949.4-2022 / ISO 22915-4:2018
Replacing GB/T 26949.4-2016
Industrial trucks - Verification of stability - Part 4: Pallet
stackers, double stackers and order-picking trucks with
operator position elevating up to and including 1200 mm lift
height
(ISO 22915-4:2018, IDT)
ISSUED ON: JULY 11, 2022
IMPLEMENTED ON: FEBRUARY 01, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions... 8
4 Test conditions ... 8
5 Verification of stability ... 11
References ... 18
Industrial trucks - Verification of stability - Part 4: Pallet
stackers, double stackers and order-picking trucks with
operator position elevating up to and including 1200 mm lift
height
1 Scope
This document specifies test methods for verifying the stability of the following
industrial trucks:
-- pallet stackers;
-- double stackers;
-- order-picking trucks with operator position elevating up to and including 1 200
mm lift height (ground clearance of the platform floor).
This document is applicable to the same type of industrial trucks with a tiltable or non-
tiltable mast or fork and a rated load lifting capacity of not more than 5 000 kg.
This document is also applicable to the same type of industrial trucks which are
equipped with load handling attachments under the same operating conditions, as well
as order-picking trucks with operator position elevating up to and including 1 200 mm
lift height which are equipped with additional load lifting devices.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this
document and are indispensable for its application. For dated references, only the
version corresponding to that date is applicable to this document; for undated references,
the latest version (including all amendments) is applicable to this document.
ISO 5053-1, Industrial trucks - Terminology and classification - Part 1: Types of
industrial trucks
Note: GB/T 6104.1-2018, Industrial trucks - Terminology and classification - Part 1:
Types of industrial trucks (ISO 5053-1:2015, IDT)
ISO 22915-1, Industrial trucks - Verification of stability - Part 1: General
The truck shall be placed on the tilt table, so that the line M-N is parallel to the tilt axis
X-Y of the tilt table, as shown in Table 1.
Point M is located at the projection of the drive/steer axle B-B on the tilt table and is
defined as follows:
a) For trucks with a single unarticulated drive/steer wheel: Point M is the vertical
projection – on the tilt table – of the intersection between the centerline of the
drive/steer axle and the center plane of the drive wheel width.
b) For trucks with rigidly supported single caster or double caster: Point M is the
vertical projection – on the tilt table plane – of the intersection between the
centerline of the caster axle and the center plane of the single caster wheel width
or the center plane between the two wheels of the double caster; at the same time,
the centerline of the rigidly supported caster axle shall be parallel to and away
from X-Y, so as to minimize the stability.
c) For trucks whose drive/steer axle is mounted on an articulated frame and the
articulated frame is articulated in the longitudinal center plane of the truck: Point
M is the vertical projection – on the tilt table – of the intersection between the
horizontal axis of the articulated frame and the longitudinal center plane A-A of
the truck.
d) For trucks with one non-rigidly supported caster and a single rigidly supported
drive/steer wheel: Point M is the vertical projection – on the tilt table – of the
intersection between the centerline of the drive wheel and the center plane of the
drive wheel width; at the same time, the drive wheel shall be parallel to X-Y, and
the non-rigidly supported caster shall be far away from X-Y to minimize the
stability.
e) For vehicles with non-articulated dual drive/steer wheels: Point M is the vertical
projection – on the tilt table – of the intersection between the centerline B-B of
the drive axle and the center plane of the drive wheel width close to X-Y; at the
same time, the drive wheel shall be parallel to X-Y.
f) For trucks whose chassis has non-articulated, rigidly supported casters, point M is
the vertical projection – on the tilt table – of the intersection between the
centerline of the caster axle and the center plane of the caster wheel width; at the
same time, the centerline of the rigid caster axle shall be parallel to and away
from X-Y, so as to minimize the stability.
g) For trucks with a single non-articulated drive wheel (steered) located on the center
plane A-A, and with non-rigidly supported casters: Point M is the vertical
projection – on the tilt table – of the intersection between the center line of the
drive wheel axle and the center plane of the drive wheel width; at the same time,
the centerline of the drive wheel axle is parallel to the tilt axis X-Y, and the
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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