GB/T 26949.1-2020Industrial trucks - Verification of stability - Part 1: General (English PDF)

Foreword

The following parts have been released or are to be released for GB/T 26949,

"Industrial trucks - Verification of stability":

-- Part 1: General;

-- Part 2: Counterbalanced trucks with mast;

-- Part 3: Reach and straddle trucks;

-- Part 4: Pallet stackers, double stackers and order-picking trucks with

operator position elevating up to and including 1 200 mm lift height;

-- Part 5: Single-side-loading trucks;

-- Part 7: Bidirectional and multidirectional trucks;

-- Part 8: Additional stability test for trucks operating in the special condition

of stacking with mast tilted forward and load elevated;

-- Part 9: Counterbalanced trucks with mast handling freight containers of 6

m length and longer;

-- Part 10: Additional stability tests for trucks operating in the special

conditions of stacking with load laterally displaced by powered devices;

-- Part 11: Industrial variable-reach trucks;

-- Part 12: Industrial variable-reach trucks with mast handling freight

containers of 6 m length and longer;

-- Part 13: Rough-terrain trucks with mast;

-- Part 14: Rough-terrain variable-reach trucks;

-- Part 15: Counterbalanced trucks with articulated steering;

-- Part 16: Pedestrian-propelled trucks;

-- Part 17: Burden and personnel carriers;

-- Part 20: Additional stability test for trucks operating in the special condition

of offset load, offset by utilization;

-- Part 21: Order-picking trucks with operator position elevating above 1200

mm;

-- Part 22: Lateral-and front-stacking trucks with and without elevating

operator position;

-- Part 23: Truck-mounted forklift;

-- Part 24: Rough-terrain rotary variable-reach trucks.

This Part is Part 1 of GB/T 26949.

This Part was drafted in accordance with the rules given in GB/T 1.1-2009.

This Part replaces GB/T 26949.1-2012, "Industrial trucks - Verification of

stability - Part 1: General"; compared with GB/T 26949.1-2012, the main

technical changes are as follows:

-- Delete "cargo and personnel vehicles" (see Chapter 1 of version 2012);

-- Modify "normative references" (see Chapter 2; Chapter 2 of version 2012);

-- Add "(3.1, 3.2)" (see 3.3);

-- Add notes (see 3.4, 3.5);

-- Modify the expression of maintaining the initial position of the truck on the

tilt table (see 4.3.2; 4.3.2 of version 2012).

The translation method that is used in this Part is equivalent to ISO 22915-

1:2016 "Industrial trucks - Verification of stability - Part 1: General".

The documents of our country that have a consistent correspondence with the

international documents that are referenced in this Part are as follows:

-- GB/T 6104.1-2018, Industrial trucks - Terminology and classification - Part

1: Types of industrial trucks (ISO 5053-1:2015, IDT)

-- GB/T 8591-2000, Earth-moving machinery - Seat index point (eqv ISO

5353:1995)

-- GB/T 8420-2011, Earth-moving machinery - Physical dimensions of

operators and minimum operator space envelope (ISO 3411:2007, IDT)

This Part was proposed by China Machinery Industry Federation.

This Part shall be under the jurisdiction of National Technical Committee of

Industrial Trucks (SAC/TC 332).

The drafting organizations of this Part: Hangcha Group Co., Ltd., Beijing

Materials Handling Research Institute, Anhui Heli Co., Ltd., Noblelift Intelligent

Equipment Co., Ltd., Ruyi Joint Stock Co. Ltd., Longhe Intelligent Equipment

Industrial trucks - Verification of stability -

Part 1: General

1 Scope

This Part of GB/T 26949 specifies the stability that is related to the safety of

industrial trucks which are defined by ISO 5053-1, and the verification methods.

The industrial trucks which are involved in this Part refer to self-propelled or

pedestrian-propelled trucks with wheels, except for trucks running on tracks.

These trucks can be controlled by the operator, or unmanned, which are used

for handling, towing, pushing, lifting, stacking or layer stacking in the shelf.

This Part specifies the basic test specifications and requirements for the

verification of stability of industrial trucks (hereinafter referred to as "trucks").

This Part applies to the following truck types and their specific conditions:

a) Counterbalanced trucks with mast which are specified in ISO 22915-2;

b) Reach and straddle trucks which are specified in ISO 22915-3;

c) Pallet stackers, double stackers and order-picking trucks with operator

position elevating up to and including 1 200 mm lift height, which are

specified in ISO 22915-4;

d) Single-side-loading trucks which are specified in ISO 22915-5;

e) Bidirectional and multidirectional trucks which are specified in ISO 22915-

7;

f) Additional stability test for trucks operating in the special condition of

stacking with mast tilted forward and load elevated, which are specified in

ISO 22915-8;

g) Counterbalanced trucks with mast handling freight containers of 6 m (20

ft) length and longer, which are specified in ISO 22915-9;

h) Additional stability test for trucks operating in the special condition of

stacking with load laterally displaced by powered devices, which are

specified in ISO 22915-10;

i) Industrial variable-reach trucks, which are specified in ISO 22915-11;

< Trucks other than variable-reach and rough-terrain trucks> meet the following

operating conditions:

a) The fork is basically level; the stacking operation is carried out on a solid,

smooth, level and paved road;

b) Perform the operation when the load centroid is approximately in the

longitudinal median plane of the truck;

c) The mast or fork is tilted backward (if possible); the load is in a low

(operating) position; it operates on a solid, smooth, level and paved road;

for forward-moving trucks, the mast or fork is completely retracted back;

d) The load/operator is running or operating in the lifting state (the truck is

specially designed for this operating condition).