BS 1757:1986

Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
3. Information to be supplied with the enquiry or
     order
4. Information to be supplied by the manufacturer
     at the time of tender
5. Service conditions
6. Design of the crane
7. Identification
8. Materials
9. Stability
Section two. Structural
10. Frame structures including jibs: equivalent
     inertia forces
11. Joints
Section three. Mechanical
12. Steel wire ropes
13. Drums and rope reeving components
14. Lifting hooks
15. Shackles
16. Overhauling weight
17. Rope pulleys
18. Gearing
19. Rotating and fixed shafts and axles
20. Keys, keyways and splines
21. Clutches
22. Brakes for crane motions
23. Lubrication
24. Slewing
25. Guarding
26. Controls
27. Manual operation
28. Crane driver's station
29. Internal combustion engines
30. Pneumatic tyres
Section four. Electrical
31. Electric motors and generators
32. Control gear
33. Protective gear
34. Fixed cables, wiring and other conductors
35. Cables for cable reels and similar applications
36. Trailing cables
37. Cable ratings
38. Wiring diagram
39. Lighting
40. Radio interference
Section six. Pneumatic equipment
43. General requirements
44. Application
Section seven. Safety
45. Safe working load charts
46. Marking of hook and block weights
47. Marking of outrigger beams
48. Lattice strut jib connections
49. Radius/jib angle indicators
50. Safe load indicator
51. Travelling with suspended loads
52. Audible warning device
53. Motion limits
54. Level indicator
55. Anemometer
56. Danger of overhead power cables
57. Instruction book
Section eight. Testing
58. General
59. Tests to be carried out
60. Test certificates
61. Verification of crane details
Section nine. Protection of crane structure
62. Painting
Appendices
A. Information recommended to be supplied with enquiry
     or order for cranes complying with BS 1757
B. Information to be supplied by manufacturer for
     cranes complying with BS 1757
C. Lists of British Standards for materials and
     equipment used in the manufacture or cranes
D. Legislation that may affect mobile cranes in the
     United Kingdom
E. The calculation of stability of lorry loaders
F. Typical form of test certificate
G. Crane stability
Tables
1. Mobile crane group classification
2. Minimum groove radii for rope drums and pulleys
3. Minimum rope clearance for drum grooves
4. Test configurations for telescopic jib arrangements
5. Test configurations for strut jib arrangements
6. Test configurations for mast/tower and jib
     arrangements
7. Test configurations for articulating jib cranes
8. References to statutory regulations
Figures
1. Elevation of typical jib configuration
2. Moment diagram for a typical lorry loader
3. Typical mobile full-slewing crane on wheels
4. Typical truck mounted telescopic jib crane (with
     lattice fly jib shown inset) and outriggers
5. Typical crawler mounted lattice jib crane
6. Typical jib configurations
7. Lorry loader: typical configurations
8. Typical turning radii
9. Typical lorry loader features
10. Typical safe working load chart for a lorry loader
11. Rating of typical crane at intermediate
     telescopic jib lengths (stepped duties)
12. Rating of typical crane at intermediate
     telescopic jib lengths (interpolated duties)
13. Positions of typical lorry loaders on weighbridge
     for stability test
14. Typical tipping lines for lorry loaders
15. Typical tipping lines for stability testing for
     cranes other than lorry loaders