BS 7121-2:2003
$198.66
Code of practice for safe use of cranes – Inspection, testing and examination
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 68 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British Standard |
| 3 | Contents |
| 7 | Introduction 1 Scope 2 Normative references 3 Terms and definitions 3.1 thorough examination |
| 8 | 3.2 competent person 3.3 competent engineer 3.4 inspection body type A inspection body type B inspection body type C inspection body 3.5 testing functional testing performance testing overload testing overload testing |
| 9 | non-destructive testing 3.6 user 3.7 rated capacity indicator/limiter 3.8 crane operator 3.9 load radius indicator 3.10 radius 3.11 rated capacity 3.12 service conditions in-service out-of service |
| 10 | 3.13 lifting 3.14 lifting accessory 4 General 5 Personnel carrying out pre-use checks, in-service inspections and thorough examinations 5.1 Pre-use checks and in-service inspections 5.2 Thorough examinations |
| 11 | 6 Periodic pre-use checks and in-service inspections 6.1 General 6.2 Daily pre-use checks 6.3 Weekly in-service inspections |
| 12 | 6.4 Record of inspection 7 Thorough examinations 7.1 General |
| 13 | 7.2 Responsibilities of the crane user 7.3 Responsibilities of the competent person 7.4 Rectification of defects 7.5 Specified period of thorough examination |
| 14 | 7.6 Examination scheme |
| 15 | 7.7 Thorough examination prior to load testing 7.8 Thorough examination after load testing 8 Pre-use checks and in-service inspections for cranes and other equipment not�in use for an exte… |
| 16 | 9 Testing as part of thorough examination 9.1 General 9.2 Functional testing 9.3 Performance testing 9.4 Load testing |
| 17 | 9.5 Cranes and other equipment which have been altered or repaired 9.6 Overload testing as part of periodic checks and inspections 9.7 Overload testing following major repair or modification 9.8 Testing of rated capacity indicator/limiter (RCI/L) |
| 18 | 9.9 Test site conditions 9.10 Weather conditions |
| 19 | 9.11 Test weights 9.12 Non-destructive testing (NDT) techniques 9.13 Reports of thorough examinations and certificates of test |
| 20 | 10 Data logging 11 Additional recommendations for cranes for lifting persons and suspended baskets 11.1 General 11.2 The crane |
| 21 | 11.3 The carrier 11.4 Bosun’s chair 11.5 Harnesses |
| 22 | 11.6 Pre�use checks 12 Assessment of wire rope condition and discard criteria 12.1 General |
| 23 | Figure 1 Some points to be considered during the assessment of the wire rope |
| 24 | 12.2 Broken wires 12.3 Wear 12.4 Corrosion and chemical attack |
| 37 | Table 2 Discard criteria for rotation-resistant ropes working in steel sheaves 13 Additional recommendations for mobile cranes 13.1 Thorough examination of mobile cranes |
| 39 | 13.2 Overload testing of mobile cranes |
| 42 | 13.3 Non-destructive testing (NDT) of mobile cranes 13.4 Mobile cranes mounted on water-borne craft |
| 43 | 13.5 Overload test for jib arrangements |
| 44 | Table 3 Test configurations for telescopic jib arrangements Table 4 Test configurations for strut jib arrangements |
| 45 | Table 5 Test configurations for mast/tower and jib arrangements |
| 46 | 14 Additional recommendations for overhead travelling cranes 14.1 Items to check at the specified period thorough examination |
| 48 | 14.2 Overload testing of overhead travelling cranes |
| 49 | 14.3 Overload testing of crane gantries 15 Additional recommendations for tower cranes 15.1 Thorough examination of tower cranes |
| 52 | 15.2 Overload testing of tower cranes |
| 54 | 15.3 Indicator test 16 Additional recommendations for loader cranes 16.1 Thorough examination of loader cranes |
| 56 | 16.2 Testing of loader cranes |
| 58 | Table 6 Recommendations for periodic testing and examination of loader cranes |
| 59 | Annex A (informative) Information to be contained in a report of a thorough examination Information to be contained in a report of a thorough examination |
| 60 | Annex B (informative) Beaufort scale Beaufort scale Table B.1 Beaufort scale wind conditions Annex C (informative) Sea state code Sea state code Table C.1 Sea state code�and sea conditions |
| 61 | Annex D (informative) Example of load test certificate Example of load test certificate |
| 62 | Annex E (normative) Example of personnel carrier pre-use check form Example of personnel carrier pre-use check form |
| 63 | Annex F (informative) Example of a wire rope test certificate Example of a wire rope test certificate |
| 64 | Annex G (informative) Example of typical procedure for climbing frame thorough examinations and�checks Example of typical procedure for climbing frame thorough examinations and�checks G.1 Procedure for the thorough examination of frame for top climbing of tower cranes G.1.1Procedure for 6 monthly thorough examination G.1.2 Procedure for 2 yearly thorough examination G.1.3 Procedure for 4 yearly thorough examination |
| 65 | G.2 Procedure for post installation thorough examination report G.2.1 Confirm the identification number of the frame and all corresponding sections to confirm all part… G.2.2 Carry out a visual check of the frame structure, checking for any damage to structural members or… G.2.3 Confirm the free movement of all guide rollers and check for damage. G.2.4 Check the rollers for undue wear and check that all keep plates are in place and secure. G.2.5 Check the hydraulic ram mounting brackets for security and check the welds for signs of cracking. G.2.6 Check the lifting yolk at the base of the hydraulic ram for signs of wear and any cracking or def… G.2.7 Check the hydraulic ram joint pin for lift and that it is correctly locked in position. G.2.8 Check that the rollers (to allow horizontal motion of the ram) are free to rotate. G.2.9 Carry out a visual inspection to check that the hydraulic system is free from leaks and has no da… G.2.10 Check the travelling platform for damage to itself and its supports. G.2.11 Check the walkways for damage and security of fixing. Close off the walkways. G.2.12 Record the results of the examination on the appropriate form and retain whilst the frame is inst… G.3 Procedure for pre-use check of frame for top climbing of tower cranes G.3.1 Confirm that the frame has current thorough examination and installation reports. G.3.2 Confirm that the test of the hydraulic system is current. G.3.3 Confirm that all personnel have been issued with a copy of this procedure or a checklist that rel… G.3.4 Confirm that all personnel are trained in the operation and understand the procedure. G.3.5 Confirm that communication either by radio or telephone is available. G.3.6 Examine all connecting pins/bolts prior to erection to determine whether they are the correct typ… G.3.7 Check the frame to ensure the jointing bolts are in place and secure. G.3.8 Check the main guide roller pin keep plates are in place and secure. G.3.9 Check the walkways are secure with no missing bolts or guardrails. G.3.10 Check that the hydraulic system is free from leaks. G.3.11 Check the apron for the support of the section to be inserted is secure and free to move. G.3.12 Engage the slew lock or physically lock the slew and inform the operator of the importance of mai… G.3.13 Obtain authorization of the checklist and permit to climb from an appointed person at the site. |
| 66 | Annex H (informative) Tower crane foundation pre-erection inspection certificate (informative) Tower crane foundation pre-erection inspection certificate |
