Bsi bs au 223a 2006 (2011)

30142580 pdf BS AU 223a 2006 Design, construction performance and marking of vehicle support stands for cars and light vans – Specification ICS 43 100; 43 180 NO COPYING WITHOUT BSI PERMISSION EXCEPT[.]

Design, construction

performance and

marking of vehicle

support stands for cars and light vans –

Specification

ICS 43.100; 43.180

BRITISH STANDARD

Confirmed December 2011

Publishing and copyright information

The BSI copyright notice displayed in this document indicates when the document was last issued

© BSI 2006 ISBN 0 580 49626 0 The following BSI references relate to the work on this standard: Committee reference AUE/9

Draft for comment 06/30142579 DC

Publication history

First published February 1988 Second edition July 1995 Third (present) edition November 2006

Amendments issued since publication

Amd no Date Text affected

Foreword ii

1 Scope 1

2 Normative references 1

3 Terms and definitions 1

4 Construction and design 1

5 Structural integrity and factor of safety 3

6 Marking 5

7 Warning notice 5

Annexes

Annex A (normative) Classification of vehicles according to the

Commission of the European Communities (EEC/Brussels) 7

Annex B (normative) Test method for the determination of stability 7

Annex C (normative) Test method for structural integrity of the

engagement head 10

Annex D (normative) Overload test method 11

Annex E (normative) Test method for permanence of marking 13

List of figures

Figure 1 – Typical vehicle support stands 4

Figure 2 – Projected plan area of typical engagement head 5

Figure 3 – Examples of pictograms used to give warning 6

Figure B.1 – Loading for stability test 9

Figure C.1 – Location of test rod over point Q on a typical engagement

head 11

Figure D.1 – Location of test rod over axis on a typical engagement

head 12

Summary of pages

This document comprises a front cover, an inside front cover,

Publishing information

This British Standard was published by BSI and came into effect

on 30 November 2006 It was prepared by Technical Committee

AUE/9, Automobile details and accessories A list of organizations

represented on this committee can be obtained on request to its secretary

Supersession

This British Standard supersedes BS AU 223a:1995, which is withdrawn

Information about this document

This British Standard establishes a safe standard of performance for vehicle support stands and to ensure that they are sufficiently robust so that under normal use they do not fail The standard also aims to ensure that the vehicle support stands are constructed and designed so that they are stable and do not damage the vehicle when used in the intended manner

It constitutes a technical revision undertaken to specify requirements concerning stability and improve and clarify other areas arising from the application of the first edition, which fails to address certain aspects

of some products which are now in circulation It also aims to take account of changes in the common method of use resulting from current vehicle design

Product certification/inspection/testing Users of this British

Standard are advised to consider the desirability of third-party certification/inspection/testing of product conformity with this British Standard Users seeking assistance in identifying appropriate conformity assessment bodies or schemes may ask BSI to forward their enquiries to the relevant association

Presentational conventions

The provisions of this standard are presented in roman (i.e upright) type Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”

Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.

Contractual and legal considerations

This publication does not purport to include all the necessary provisions

of a contract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

1 Scope

This British Standard specifies requirements for the design,

construction, performance and marking of vehicle support stands for cars and light vans

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

BS EN 228:1993, Specification for unleaded petrol (gasoline) for

motor vehicles

3 Terms and definitions

For the purposes of this British Standard, the following terms and definitions apply

3.1 vehicle support stand

device of fixed or adjustable height on which an appropriate part, e.g axle, chassis, of a raised vehicle is supported

NOTE Where the device has an adjustable height, the height is not intended to be varied when the device is loaded Some examples of typical vehicle support stands are illustrated in Figure 1.

3.2 vehicle

passenger car or passenger car derivative of classification M1 or N1

A towed unit such as a caravan or a trailer of classification O1 or O2

NOTE See Annex A for the definitions of these vehicle categories.

3.3 rated capacity (SWL or Safe Working Load)

capacity rated by the manufacturer as the maximum load that is to be supported by a single vehicle support stand at all times

3.4 tee section tool

device used in conjunction with the test rig, to replicate the sill of a vehicle; used to impose a test load upon the support stand being examined

NOTE See Figure B.1.

4 Construction and design

There shall be a minimum area of 5 000 mm2in contact with the ground

to avoid instability due to sinking

There shall be a minimum clearance of 25 mm between the bottom of the upper column at its lowest possible setting and the ground

4.3 Capacity

The rated capacity of a vehicle support stand shall be not less than 1 000 kg, and not more than 2 000 kg

The engagement head of a vehicle support stand shall:

a) have a projected plan area of at least 3 000 mm2 (see Figure 2); and

b) be of such a shape as to provide positive retention of the imposed load

When raised to the maximum height required by the test procedure given in Annex B, there shall be a total lateral movement of the engagement head of not more than 10 mm

Where a vehicle support stand incorporates a means of adjusting its height, the height adjustment mechanism shall conform to a) to c), and d) if applicable

a) It shall be permanently attached to the stand

NOTE For a stand with a pin type adjustment, the pin is to be attached to the stand by means of a metal linkage, e.g chain or flexible wire.

b) It shall be capable of easy and positive adjustment when the stand

is not loaded

c) With the stand on a horizontal base it shall not be possible to operate the height adjustment mechanism with a direct force of less than 100 N or a torque of less than 30 N·m when a vertical force of 1 000 N is applied through the centre of the engagement head

d) If it is possible to use the stand incorrectly assembled, it shall conform to c) when tested incorrectly assembled

Surfaces shall not have any hazardous projections

All sharp edges shall be removed by rounding, bevelling, or other means

of deburring to prevent injury to the operator

5 Structural integrity and factor of safety

When tested in accordance with Annex C, a vehicle support stand engagement head shall sustain a force equal to 110% of the rated capacity for a minimum period of 60 s with no breakage or fracture

NOTE Permanent deformation of the engagement head is permitted so long as the engagement head is capable of supporting the load applied.

5.2.1 Vertically imposed load

When tested by the method described in Annex B, the vehicle support stand shall not break, fracture, or become permanently deformed, and shall remain stable for a minimum period of 60 s, after a vertical load (Lv) equivalent to 110% of the rated capacity has been achieved After the stipulated test period, the load (Lv) shall be removed and the vehicle support stand examined for defects or potential failure If the support stand is in good condition, the same sample shall be used for

the rotational resistance test (5.2.2).

NOTE Minor deformation might occur at the point of contact of the tee section tool and is permissible.

5.2.2 Rotational resistance

Subsequent to the test described in 5.2.1 a rotational force (Lr) equal

to 10% of Lv is to be applied (via the tee tool) to the same test sample, the vehicle support stand shall not break, fracture, or become

permanently deformed, and shall remain stable for a minimum period

of 60 s

When tested in accordance with Annex D, a vehicle support stand shall withstand a load of twice the rated capacity with no sign of breakage

or fracture

Some deformation is permitted but the overall height of the stand

(as measured in D.3.7) shall not reduce by more than 1%.

Figure 1 Typical vehicle support stands

e) Folding type

6 Marking

Each vehicle support stand shall be permanently marked with the following information

a) The number of this British Standard, i.e BS AU 223a:19951) b) A manufacturer’s mark as a means of identifying the manufacturer, importer or other supplier of the stand

c) The rated capacity stated as “SWL” in kilograms

All such markings shall be legible when tested in accordance with Annex E

7 Warning notice

A warning notice shall be attached to each vehicle support stand giving

at least the following warnings

a) Use only as specified by the manufacturer

b) Use no more than a single pair of stands

c) Use on a hard, level surface, e.g concrete

d) Securely chock wheels remaining on the ground

e) Make sure that each stand is securely located under a strong point

on the vehicle; consult the vehicle manufacturer’s handbook for guidance

f) Exercise extra care when using a three wheeled vehicle or a trailer g) Upper and lower columns are to be used only as a pair as supplied

NOTE Use of pictograms to support the above warnings is recommended See Figure 3 as an example.

1) Marking BS AU 223a:2006 on or in relation to a product represents a

manufacturer’s declaration of conformity, i.e a claim by or on behalf of the manufacturer that the product meets the requirements of the standard The accuracy of the claim is solely the claimant’s responsibility Such a declaration Figure 2 Projected plan area of typical engagement head

Figure 3 Examples of pictograms used to give warning

CORRECT

STAGE 1

CORRECT

STAGE 2A

STAGE 2B

CORRECT INCORRECT

Always chock wheels that remain on ground

Annex A (normative) Classification of vehicles according to

the Commission of the European Communities (EEC/Brussels)

Category M Motor vehicles with at least four wheels used for the

carriage of passengers

Category M1Vehicles used for the carriage of passengers and

comprising no more than eight seats in addition to the driver’s seat

Category N Motor vehicles with at least four wheels used for the

carriage of goods

Category N1Vehicles used for the carriage of goods and having a

maximum mass not exceeding 3.5 tonnes

Category O Trailers (including semi-trailers)

Category O1Trailers with a maximum mass not exceeding 0.75 tonnes Category O2Trailers with a maximum mass not exceeding 3.5 tonnes

NOTE These definitions of vehicle category are also used, with very slight editorial differences, by the UN Economic Commission for Europe (ECE/Geneva).

stability

The vehicle support stand is loaded with the base at an angle of 10° to

the horizontal as a measure of the ability of a vehicle support stand to resist tipping as a result of its geometric design (see Figure B.1) Furthermore, a rotational force is introduced to measure the ability of the support stand to resist the torque induced by subsequently jacking another corner of the vehicle

B.2.1 Hydraulic test rig, or other suitable device capable of applying

the appropriate force, having a means of indicating the force being applied; fitted with a rotatable mandrel, having a means of indicating the force required to cause rotation and a means of inclining the base

at an angle of 10° to the horizontal

B.2.2 “Tee” section tool (having dimensions conforming to those

shown in Figure B.1) to be fitted to the rotatable mandrel so as to impose the test force onto the head of the support stand

B.2.3 A stopwatch or means capable of keeping time for 60 s.

B.3 Procedure

B.3.1 Position the vehicle support stand on the inclined base so that it

is in the least stable configuration (see note) whilst having the blade of the “Tee” section tool perpendicular to trough of the engagement head

NOTE The least stable condition is normally when the stand has been adjusted to its highest setting.

B.3.2 Align the axis of the “Tee” section tool vertically so that it passes

through the geometric centre of the engagement head (see Figure B.1)

B.3.3 Gradually apply a force via the “Tee” section tool to the

engagement head

B.3.4 Continue to increase the force (Lv) until it is equivalent to 110%

of the rated capacity of the vehicle support stand or until some part of the stand breaks, fractures or becomes permanently deformed or becomes unstable

B.3.5 Maintain this force for a minimum of 60 s.

B.3.6 Remove the force and examine the vehicle support stand to

observe whether or not any part of the stand has broken, fractured or become permanently deformed If the support stand is in good condition, the same sample is to be used for the rotational resistance

test (B.3.7).

B.3.7 Utilizing the same sample (if it has passed examination) as

in B.3.6, re-apply the vertical force (Lv) and then apply a rotational

force (Lr) at a leverage of 1m, for a minimum period of 60 s

NOTE For example a support stand rated at 1 500 kg (or 3 000 kg per pair):

Lv = 110% of 1 500 Kg = 1 650 kg

Lr = 10% of Lv (@ 1.0m) = 165 kg/m

B.3.8 Remove the force and examine the vehicle support stand to

observe whether or not any part of the stand has broken, fractured or become permanently deformed

Figure B.1 Loading for stability test

10º 10º

A A

X

X

50 minimum

Annex C (normative) Test method for structural integrity

of the engagement head

A vehicle support stand is subjected to a specified eccentric force which

is applied to the end of the engagement head

C.2.1 Hydraulic test rig, or other suitable device capable of applying

the appropriate force, having a means of indicating the force being applied

C.2.2 A square ended rigid 50 mm diameter rod, through which the

force can be transmitted to the engagement head

C.2.3 Large, hard, flat surface, on which the vehicle support stand is

stood when tested

C.2.4 A stopwatch or means capable of keeping time for 60 s.

C.3.1 Position the vehicle support stand on a large, hard, flat surface C.3.2 Align the 50 mm diameter rod vertically so that its axis passes

through the point Q on the periphery of the engagement head (see Figure C.1)

C.3.3 Gradually apply a force via the rod to the engagement head C.3.4 Continue to increase the force until it is equivalent to 110% of

the rated capacity of the vehicle support stand and maintain this force for a minimum of 60 s

C.3.5 Remove the force and examine the engagement head of the

vehicle support stand to observe whether or not any part of the engagement head has broken or fractured