1、BRITISH STANDARD BS 6913-4: 1997 ISO 6012:1997 Operation and maintenance of earth-moving machinery Part 4: Recommendations for service instrumentation ICS 53.100BS6913-4:1997 This British Standard, having been prepared under the direction of the Sector Board forBuilding and Civil Engineering, was pu
2、blished underthe authority of the Standards Board and comes intoeffect on 15 December 1997 BSI 03-1999 ISBN 0 580 28837 4 National foreword This British Standard reproduces verbatim ISO 6012:1997 and implements it as the UK national standard. It supersedes BS6913-4:1990 which is withdrawn. The UK pa
3、rticipation in its preparation was entrusted by Technical Committee B/513, Construction equipment and plant, and site safety, to Subcommittee B/513/1, Earth-moving machinery (International), which has the responsibility to: aid enquirers to understand the text; present to the responsible internation
4、al/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its se
5、cretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standa
6、rds Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of page
7、s This document comprises a front cover, an inside front cover, pages i and ii, theISO title page, page ii, pages 1 to 7 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front c
8、over. Amendments issued since publication Amd. No. Date CommentsBS6913-4:1997 BSI 03-1999 i Contents Page National foreword Inside front cover Foreword ii 1 Scope 1 2 Types of checks, instruments and scales 1 Table 1 Guide list of diagnostic instruments to check earth-moving machinery at the work-si
9、te 2ii blankBS6913-4:1997 ii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interest
10、ed in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Co
11、mmission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75% of the member bodies casting a vote. Interna
12、tional Standard ISO6012 was prepared by Technical Committee ISO/TC127, Earth-moving machinery. This fourth edition cancels and replaces the third edition (ISO6012:1989), which has been technically revised. Descriptors: Earth-moving equipment, checking equipment, instruments, specifications.BS6913-4:
13、1997 BSI 03-1999 1 1 Scope This International Standard sets forth, for guidance, a list of diagnostic instruments to check earth-moving machinery at the work-site. The main purpose of this International Standard is to ensure that earth-moving machines be designed with proper accessibility and necess
14、ary connections in order to make it possible to perform these checks in an easy way, using portable instruments. NOTE 1Service instruments use of which involves major machine disassemblies or which are more suitable for use in the workshop are purposely excluded from this list. NOTE 2Diagnostic chec
15、ks are intended to be carried out by qualified personnel. Relevant specifications and instructions should therefore be included, preferably in the service manual, rather than in the operators manual. This International Standard applies to crawler and wheel tractors, crawler and wheel loaders and hyd
16、raulic excavators, but can be easily extended to apply to other basic earth-moving machines such as graders, tractor scrapers and dumpers. 2 Types of checks, instruments and scales Table 1 specifies the corresponding instruments for each check. The letters inTable 1 have the following meanings: The
17、instrument specified for each type of check has been selected from among those most commonly used. Other more sophisticated devices or instruments, if any, can be used as alternatives. The instrument values or ranges presented in Table 1 are intended to be indicative only and may change with technol
18、ogical progress. A: definitely required (when the machine uses these basic elements), B: desirable, but not definitely required.BS6913-4:1997 2 BSI 03-1999 Table 1 Guide list of diagnostic instruments to check earth-moving machinery at the work-site Check Pressure gauge Type pressure gauge Vacuum me
19、ter Thermometer Pyrometer Timing electronic tester Flow meter MPa a MPa MPa a C C l/s (l/min) 0,2 0,3 1 25 40 0,1 to 1 0,01 0,1 40 to 100 50 to 130 50 to 200 900 3,3 (200) 8,3 (500) Engine Valve clearance Diesel timing B Cylinder compression Fuel injection pressure Engine oil pressure A Intake manif
20、old pressure (supercharged engines) A Exhaust manifold pressure before and after turbine (supercharged engines) A Exhaust manifold temperature before and after turbine (supercharged engines) B Depression after the air cleaner A Cooling fluid temperature A Antifreeze concentration in cooling fluid Co
21、oling system sealing Engine rotational frequency Cold starting cooling fluid temperature B Fuel pressure A Power train Oil bath clutch luboil pressure B Transmission luboil pressure B Hydraulic reverser control oil pressure A Torque converter oil pressure A Power shift clutch control oil pressure A
22、Engine clutch control oil pressure A 5 10BS6913-4:1997 BSI 03-1999 3 Table 1 Guide list of diagnostic instruments to check earth-moving machinery at the work-site Engine tachometer Feeler gauge Dynamometer Steel tape Steel rule Cylinder compression gauge Fuel nozzle tester Tyre tread depth gauge Dep
23、th gauge 180 mm with 1/20 scale slider Pump and gauge Battery hydrometer Hydrometer-thermometer for fluid concentration Vernier caliper Electrical tester 40 V/500 A/5 000 7 Torque Wrenches Combined template Outside caliper min 1 N m m MPa MPa MPa mm Nm 5000 300 10 1 1 to 4 25 to 40 0,16 160 140 420
24、750 A B B A B ABS6913-4:1997 4 BSI 03-1999 Table 1 Guide list of diagnostic instruments to check earth-moving machinery at the work-site Check Pressure gauge Type pressure gauge Vacuum meter Thermometer Pyrometer Timing electronic tester Flow meter MPa a MPa MPa a C C l/s (l/min) 0,2 0,3 1 25 40 0,1
25、 to 1 0,01 0,1 40 to 100 50 to 130 50 to 200 900 3,3 (200) 8,3 (500) Hydrostatic transmission oil pressure A A A Oil flow (applicable to all preceding items) B Torque converter oil temperature A Oil bath clutch luboil temperature B Hydraulic reverser oil temperature A Transmission oil temperature A
26、Bevel gear oil temperature B Hydrostatic transmission oil temperature A Brake Brake oil control pressure A A Braking servosystem control air pressure A Vacuum boosted brake system under pressure A Brake disc thickness Steering Steering clutches control oil pressure A Steering power assistance contro
27、l oil pressure A Oil flow (applicable to preceding items) B Undercarriage Wear of track components (links, rollers, idlers, etc.) Equipment Operation pressure and relief valve setting A A A Pressure inside the oil tank A Oil temperature B 5 10BS6913-4:1997 BSI 03-1999 5 Table 1 Guide list of diagnos
28、tic instruments to check earth-moving machinery at the work-site Engine tachometer Feeler gauge Dynamometer Steel tape Steel rule Cylinder compression gauge Fuel nozzle tester Tyre tread depth gauge Depth gauge 180 mm with 1/20 scale slider Pump and gauge Battery hydrometer Hydrometer-thermometer fo
29、r fluid concentration Vernier caliper Electrical tester 40 V/500 A/5 000 7 Torque Wrenches Combined template Outside caliper min 1 N m m MPa MPa MPa mm Nm 5000 300 10 1 1 to 4 25 to 40 0,16 160 140 420 750 A A B A A B ABS6913-4:1997 6 BSI 03-1999 Table 1 Guide list of diagnostic instruments to check
30、 earth-moving machinery at the work-site Check Pressure gauge Type pressure gauge Vacuum meter Thermometer Pyrometer Timing electronic tester Flow meter MPa a MPa MPa a C C l/s (l/min) 0,2 0,3 1 25 40 0,1 to 1 0,01 0,1 40 to 100 50 to 130 50 to 200 900 3,3 (200) 8,3 (500) Oil flow B Wheels Type pres
31、sure b A Tyre tread depth Electrical plant Battery electrolyte density Battery voltage and various tests General Bolts and nuts torque Various dimensions Effort required on the control levers Various clearances a MPa = 10 bar = 7600mmHg = 100mH 2 0 b The tyre pressure gauge may have a dual gauge, fo
32、r example MPa and bar or psi, reflecting the local units. A tyre inflator can have the same range of 0,3MPa to 1MPa as the tyre pressure gauge. 5 10BS6913-4:1997 BSI 03-1999 7 Table 1 Guide list of diagnostic instruments to check earth-moving machinery at the work-site Engine tachometer Feeler gauge
33、 Dynamometer Steel tape Steel rule Cylinder compression gauge Fuel nozzle tester Tyre tread depth gauge Depth gauge 180 mm with 1/20 scale slider Pump and gauge Battery hydrometer Hydrometer-thermometer for fluid concentration Vernier caliper Electrical tester 40 V/500 A/5 000 7 Torque Wrenches Comb
34、ined template Outside caliper min 1 N m m MPa MPa MPa mm Nm 5000 300 10 1 1 to 4 25 to 40 0,16 160 140 420 750 B A A A A A A A A B ABS 6913-4: 1997 ISO 6012:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing Bri
35、tishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is th
36、e constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cove
37、r. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Custo
38、mer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on
39、 national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subsc
40、ribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publication
41、s. BSI also holds the copyright, in the UK, of the publications of the internationalstandardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocop
42、ying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
