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BS ISO 4309:2017 Cranes. Wire ropes. Care and maintenance, inspection and discard, 2017
- undefined
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Care and maintenance
- 4.1 General
- 4.2 Rope replacement
- 4.3 Offloading and storing the rope
- 4.4 Condition of the rope prior to installation
- 4.5 Installing the rope
- 4.6 Running-in the new rope
- 4.7 Maintaining the rope
- 4.8 Maintenance of rope-related parts of the crane
- 5 Inspection
- 5.1 General
- 5.2 Daily visual inspections
- 5.3 Periodic inspections
- 5.3.1 General
- 5.3.2 Frequency
- 5.3.3 Extent of inspection
- 5.3.4 Inspection at, or in the vicinity of, a termination
- 5.3.5 Inspection record
- 5.4 Inspection following an incident
- 5.5 Inspection following period with crane out of operation
- 5.6 Inspection by magnetic rope test method
- 6 Discard criteria
- 6.1 General
- 6.2 Visible broken wires
- 6.2.1 Criteria for visible broken wires
- 6.2.2 Use of Tables 3 and 4 and rope category number
- 6.2.3 Wire breaks other than those resulting from service
- 6.2.4 Single-layer and parallel-closed ropes
- 6.2.5 Rotation-resistant ropes
- 6.3 Magnetic rope test (MRT)
- 6.4 Decrease in rope diameter
- 6.4.1 Uniform decrease along the rope
- 6.4.2 Calculation to determine actual uniform decrease in diameter and expression as percentage of nominal rope diameter
- 6.4.3 Local decrease
- 6.5 Fracture of strands
- 6.6 Corrosion
- 6.7 Deformation and damage
- 6.7.1 General
- 6.7.2 Waviness
- 6.7.3 Basket deformation
- 6.7.4 Core or strand protrusion or distortion
- 6.7.5 Protruding wires in loops
- 6.7.6 Local increase in rope diameter
- 6.7.7 Flattened portion
- 6.7.8 Kink or tightened loop
- 6.7.9 Bend in rope
- 6.7.10 Damage due to heat or electric arcing
- Annex A (normative) Key areas requiring particularly close inspection
- Annex B (informative) Typical modes of deterioration
- Annex C (informative) Discard criteria for MRT
- Annex D (informative) Internal examination of rope by use of clamps
- Annex E (informative) Typical examples of inspection records
- Annex F (informative) Useful information on rope deterioration and discard criteria
- Annex G (informative) Combined effect assessment of rope condition and severity rating — One method
- Annex H (informative) Examples of cross-sections of ropes and corresponding rope category number (RCN)
- Annex I (informative) External corrosion
- Bibliography [Go to Page]
