BS 7121-3:2017+A1:2019 – TC
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Tracked Changes. Code of practice for safe use of cranes – Mobile cranes
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 148 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 80 | Foreword |
| 83 | 1 Scope 2 Normative references |
| 84 | 3 Terms and definitions |
| 85 | Figure 1 — All-terrain crane Figure 2 — Crawler crane |
| 86 | Figure 3 — Low-headroom crane |
| 87 | Figure 4 — Mobile self-erecting tower crane |
| 88 | Figure 5 — Road-rail crane Figure 6 — Rough-terrain crane |
| 89 | Figure 7 — Spider crane |
| 90 | Figure 8 — Truck-mounted crane |
| 91 | Figure 9 — Yard crane 4 Management of installation and lifting operations 4.1 Safe system of work |
| 92 | 4.2 Control of the lifting operation |
| 93 | 4.3 Duties of the person appointed to control the lifting operation |
| 94 | Table 1 — Example load and environmental hazards associated with lifting operations |
| 95 | Figure 10 — Relationship between complexity index and lift category Table 2 — Illustration of the categorization of lifts based on environmental and load complexities |
| 98 | 5 Planning of the lifting operation 5.1 General |
| 99 | 5.2 Risk assessment 5.3 Method statement |
| 100 | 5.4 Team briefing/induction |
| 101 | 5.5 Selection of cranes 5.6 Siting of crane 5.7 Contracts |
| 102 | 6 Selection and duties of personnel other than the appointed person 7 Selection of cranes |
| 103 | 7.1 General |
| 104 | 7.2 Truck-mounted crane 7.3 Rough-terrain crane 7.4 All-terrain crane |
| 105 | 7.5 Yard crane 7.6 Low-headroom crane 7.7 Crawler crane 7.8 Spider cranes |
| 106 | 7.9 Jib configurations |
| 107 | 7.10 Main jib extensions 7.11 Special operations |
| 108 | 8 Siting of cranes 8.1 General 8.2 Crane standing or support conditions |
| 110 | Figure 11 — Packing for outriggers/stabilizers Figure 12 — Position of outrigger mat 8.3 Proximity hazards |
| 112 | Figure 13 — Minimum exclusion zone distances |
| 114 | 9 Safety 9.1 General 9.2 Modifications and materials 9.3 Identification of person directing crane movements 9.4 Personal protective equipment (PPE) and safety equipment |
| 115 | 9.5 Work at height 9.6 Access and egress (including emergency escape) 9.7 Fire extinguishers |
| 116 | 9.8 Limiting and indicating devices 9.9 Machinery guarding |
| 117 | 10 Crane documentation 10.1 Rated capacity charts 10.2 Instruction manuals 10.3 Reports of thorough examination/test certificates 10.4 Maintenance records 11 Rigging and de-rigging 11.1 Planning |
| 118 | 11.2 Manufacturer’s rigging and de-rigging instructions 11.3 Fly jibs 11.4 Identification of components 11.5 Electrical supply |
| 119 | 12 Procedures and precautions 12.1 Crane operation |
| 120 | 12.2 Rated capacity |
| 121 | Figure 14 — Control of pendulum swinging of load 12.3 Mode of operation and control |
| 122 | 12.4 Working on cranes 12.5 Reporting of defects and incidents 12.6 Leaving the crane unattended |
| 123 | 13 Pre-use checks, maintenance and inspection 14 Thorough examination, including testing 15 Multiple lifting and lowering 15.1 General |
| 124 | 15.2 Main factors to be considered when planning multiple lifting |
| 125 | 16 Weather conditions 16.1 General 16.2 Wind |
| 126 | 16.3 Visibility 16.4 Rain or snow/ice 16.5 Water condition 17 Out-of-service conditions 17.1 General 17.2 Thunderstorms 17.3 On-site travel |
| 127 | 17.4 Movement to site 18 Slinging and handling of loads |
| 128 | 19 Signalling systems 20 Special applications of cranes 20.1 General 20.2 Raising or lowering of personnel |
| 132 | 20.3 Grabbing and magnet crane services 20.4 Magnet service 20.5 Vacuum lifting devices 20.6 Demolition: balling operations 20.7 Dynamic compaction |
| 133 | Annex A (informative) Road-rail cranes Figure A.1 — Typical road-rail crane varieties |
| 134 | Annex B (informative) Contract lift or crane hire |
| 135 | Figure B.1 — Contract options Annex C (informative) Loads imposed on the ground by mobile cranes |
| 136 | Figure C.1 — Loadings on a mobile crane |
| 137 | Figure C.2 — Effect of load and position on outrigger loads |
| 138 | Figure C.3 — Effect of load and position on crawler track loads Annex D (normative) Piling operations |
| 140 | Annex E (normative) De-rigging operations |
| 141 | Annex F (normative) Non-recoverable lifts/loads Annex G (normative) Mobile cranes mounted on water-borne craft |
| 142 | Figure G.1 — Typical flat top modular pontoon |
| 143 | Figure G.2 — Typical ramp pontoon |
| 145 | Bibliography |
