ISO-9927-3-2005.pdf

Reference number ISO 9927-3:2005(E) © ISO 2005 INTERNATIONAL STANDARD ISO 9927-3 First edition 2005-07-15 Cranes Inspections Part 3: Tower cranes Appareils de levage à charge suspendue Vérifications Partie 3: Grues à tour Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. © ISO 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2005 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) © ISO 2005 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 General. 1 4 Daily inspections 2 5 Frequent inspections 2 6 Periodic inspections. 3 7 Thorough inspections 5 8 Exceptional inspection. 6 Annex A (normative) Overview of inspections . 7 Annex B (informative) Verification of hooks 10 Annex C (informative) Example of report for periodic, thorough or exceptional inspections. 11 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) iv © ISO 2005 All rights reserved 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 interested 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 Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9927-3 was prepared by Technical Committee ISO/TC 96, Cranes, Subcommittee SC 7, Tower cranes. ISO 9927 consists of the following parts, under the general title Cranes Inspections: Part 1: General Part 3: Tower cranes Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 9927-3:2005(E) © ISO 2005 All rights reserved 1 Cranes Inspections Part 3: Tower cranes 1 Scope This part of ISO 9927 specifies the regular inspections to be carried out on tower cranes. It is intended to be used in conjunction with ISO 9927-1. It does not cover inspection prior to the first use of a tower crane. 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. ISO 4309, Cranes Wire ropes Care, maintenance, installation, examination and discard ISO 9927-1:1994, Cranes Inspections Part 1: General 3 General In order to ensure safe operation of tower cranes, their proper working and operational condition shall be maintained. Therefore, all cranes need to undergo regular inspections. This ensures that deviations from safe conditions are detected and can be rectified. The inspections shall be arranged by the user. The regular inspections are daily inspections frequent inspections periodic inspections, and thorough inspections. NOTE The manufacturer can give inspection instructions that differ from those of this part of ISO 9927. In this case, it is the manufacturer's instructions that are applicable. Annex A gives an overview of the inspections (periodicity, content, persons in charge, results and reports). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) 2 © ISO 2005 All rights reserved 4 Daily inspections 4.1 General Daily inspection shall be performed before starting. This inspection shall consist of a visual inspection (in general, no dismantling is required) and functional tests as defined hereafter. They shall be carried out by a competent person (e.g. the crane driver). 4.2 Content The inspections before each start shall take in a) the functioning of mechanisms, in particular the brakes (generally without load), b) the functioning of limiting and indicating devices, and c) observation of conspicuous defects, including ropes. 4.3 Results Any defect shall be pointed out to a person who can take a suitable decision (to leave the tower crane in use, repair, thorough inspection of a part of the tower crane or the whole tower crane, limitation of use). The causes of these defects shall be sought, depending on the type of component and defect concerned. The record book shall be updated (date of the repair, method). 5 Frequent inspections 5.1 General Frequent inspections shall comprise visual inspections (in general, no dismantling is required), as specified in 5.2, and the functional tests according to 4.2. They shall be carried out by a competent person (e.g. an experienced technician, see ISO 9927-1). 5.2 Items to be inspected The following items shall be inspected. a) Level of lubricants: leakage of lubricants, greasing. b) Hydraulic equipment: leakage. c) Hooks and latches: visible deformation, cracks, wear. d) Wire ropes: in accordance with ISO 4309. e) Connections, joints: corrosion, visual inspection. f) Break wear: thickness of brake linings, adjustment, noise, etc. g) Hydraulic and pneumatic hoses: in particular those which are bent during operations. h) Electrical installation: state, signs of deterioration, moisture accumulation. i) Anchorage: braces or guys supporting cranes (condition). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) © ISO 2005 All rights reserved 3 5.3 Periodicity The periodicity of the frequent inspections shall take into account the actual use of the tower crane and the environment in which the tower crane is working. The minimum periodicity is as follows: a) for 5.2 a) to 5.2 e), monthly; b) for 5.2 f) to 5.2 i), twice yearly. 5.4 Results Any defect shall be pointed out to a person who can take a suitable decision (to leave the tower crane in use, repair, thorough inspection of a part of the tower crane or the whole tower crane, limitation of use). The causes of these defects shall be sought, depending on the type of component and defect concerned. The record book shall be updated (date of the repair, method). 6 Periodic inspections 6.1 General Periodic inspections are inspections made periodically, as indicated in 6.3, and after each re-erection. Periodic inspections shall comprise visual inspections (in general, no dismantling is required), and functional tests, both with and without load, as defined below. They shall be carried out by a competent person (e.g. an experienced technician, see ISO 9927-1). The competent person shall be in possession of the report of the previous inspections, and the automatic registered data, where available, (cycles, hours, days, loads, etc.) permitting knowledge of the service time of the components for which data exist. 6.2 Content The periodic inspections shall include the content of the frequent inspections. The functional tests for all components shall be performed in the most unfavourable position for these components. a) Verification of the tower crane's identification and plates. b) Verification of the presence of the instruction handbook. c) Verification of the records of maintenance. d) Verification of the components, equipment and steel structure. Compare the component installed on the tower crane with the component listed in the documentation. e) Consideration of the condition of equipment indicating its deterioration: the gear or its components are loose and its oil (lubricant) leaks; visible couplings between particular components (e.g. motor, gear, brakes, drums) show wear or damage; Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) 4 © ISO 2005 All rights reserved unusual noise and vibration is noticeable; unusual high temperature is noticeable; fastening bolts are loose, fissured or defective; brake linings are worn or damaged; the general condition (corrosion, dirt) is doubtful; the electrical installation (cable entries, cable attachments) shows damage; wire ropes (see ISO 4309); hooks (see Annex B). f) Functional tests. Functioning and efficiency, with the rated load of mechanisms, in particular the brakes, and limiting and indicating devices. g) Steel structure and rails: welding; corrosion; remaining deformation; cracks. h) Support of the tower crane/crane-track. For an example, see ISO 9927-1:1997, Annex A. 6.3 Periodicity Tower cranes shall be inspected at least each year and after each re-erection. NOTE 1 Some verifications can be performed when the tower crane is dismantled. NOTE 2 Changing of the pulley block or addition of a jib extension or tower section are not considered as dismantling and re-erection. NOTE 3 After folding and unfolding of a self-erecting tower crane, there is need only for an inspection limited to b), c), f), g) and h) of 6.2. 6.4 Results Periodic inspections shall be recorded. This report shall indicate the components verified and remaining defects. An example of such a report is presented in Annex C. The report shall be given to a person who can take a suitable decision (to leave the tower crane in use, repair, thorough inspection of a part of the tower crane or the whole tower crane, limitation of use). The causes of these defects shall be sought, depending on the type of component and defect concerned. The record book shall be updated (date of the repair, type, etc.). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 09:56:45 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9927-3:2005(E) © ISO 2005 All rights reserved 5 7 Thorough inspections 7.1 General Thorough inspections are detailed inspections made with a periodicity according to 7.3 (and as identified in Annex A). They shall be performed by a competent person, capable of defining the actions needed to be taken depending on the results of these inspections (e.g. an expert engineer, see ISO 9927-1). The competent person shall be in possession of the report of the previous inspections, and the automatic registered data, where available, (cycles, hours, days, loads, etc.) permitting knowledge of the service time of the different components for which data exist. 7.2 Content The thorough inspections shall comprise at least all the elements of the periodic inspections. A thorough inspection can require non-destructive tests and/or dismantling if considered justified, taking into account the content of the previous verifications (daily, frequent, periodic or thorough), the results of the current tests, and the result of the current visual checks. When dismantling, special care shall be taken in order to avoid mistakes or wrong operation while following the maintenance instructions. If these are not available, the manufacturer of the tower crane or of the component concerned should be contacted for assistance. During the thorough inspection, particular attention shall be given to the following: vibration; unusual noise or temperature; poor general condition, corrosion; alignment of machinery, motors and gears, rails, wheels, shafts; brakes; connections, bolts, pins. 7.3 Periodicity 7.3.1 Periodicity for tower cranes or components for tower cranes with no automatic registration on use Thorough inspection of a comp