3.1.1 Where LR is requested to issue certification of lifting appliances, plans of the arrangements and scantlings of the installation are to be approved in accordance with the appropriate Chapter of this Code and an Initial Survey of the installation is to be carried out in accordance with Ch 12, 3.2 Initial Survey of new installations or Ch 12, 3.3 Initial Survey of existing installations as appropriate.
3.1.2 Subsequent Periodical Examinations for the maintenance of the validity of the certification are to be carried out at the intervals and in the manner prescribed in Ch 12, 3.4 Periodical Thorough Examinations.
3.1.3 Requests from the Owner for the deferment of thorough examinations will be considered and may be permitted in the circumstances given in Ch 12, 3.5 Deferment of surveys.
3.1.4 Examinations following damage to the lifting appliance are to comply with Ch 12, 3.6 Damage surveys.
3.1.5 Where the lifting appliances have also been assigned a class notation the surveys are also to comply with Ch 12, 3.7 Classification surveys.
3.1.6 Requests for other examinations not specified above will be specially considered. Such examinations will, generally, be covered by separate instructions since they will normally involve the specific requirements of a National Authority.
3.2.1 Materials used in the construction of the lifting appliance are to comply with Ch 1, 1.6 Materials and fabrication. Materials test certificates are to be made available.
3.2.2 The lifting appliance is to be examined during construction and the Surveyor is to be satisfied that the primary structural arrangements and workmanship are in accordance with the approved plans. Any details, required for further clarification or certification purposes, not in accordance with the approved plans or otherwise found to be unsatisfactory are to be rectified.
3.2.3 All welding is to be carried out in accordance with an approved WPS by suitably qualified welders and is to be to the satisfaction of the Surveyor, see Ch 11, 2 Fabrication of classed lifting appliances and Ch 11, 3 Fabrication of certified lifting appliances.
3.2.4 Non-Destructive Examination (NDE) is to be carried out by suitably qualified Operators to the satisfaction of the Surveyor. The minimum requirements for NDE are given in Table 12.3.1 Minimum requirements for NDE, but this may be extended at the discretion of the Surveyor. For the steels shown in Table 12.3.2 Cooling times prior to Non-Destructive Examination, the following cooling times are to be observed prior to the application of NDE to completed welding.
Note 1. The percentage of weld found in table is the percentage of total weld length to be tested with a specified technique.
Note 2. All welds are to be subject to 100% visual inspection.Note 3. Dye penetrant testing is to be used in place of magnetic particle inspection for non-magnetic materials, i.e. aluminium, austenitic stainless steel, etc.
Note 4. Extent of inspection to be agreed between the manufacturer and Surveyor.(after all welds have reached ambient temperature and after any applicable post-weld heat treatment)
Note 1. At the discretion of the Surveyor, the 72 hour interval may be reduced to 48 hours for radiographic or ultrasonic inspection, provided there is no indication of delayed cracking, and a complete visual and random magnetic particle or penetrant inspection to the satisfaction of the Surveyor is conducted 72 hours after welds have been completed and cooled to ambient temperature.
Note 2. Regardless of yield strength, consideration is to be given to requiring a delayed inspection where evidence of delayed cracking has been observed in production welds.
Note 3. At the discretion of the Surveyor, a longer interval and/or additional random inspection at a later period may be required, for example, in case of high thickness welds.
3.2.5 Where PWHT is carried out the requirement for testing after a delay period may be relaxed, at the discretion of the Surveyor.
3.2.6 Particular attention is to be given to the supporting structure for masts, crane pedestals and overhead runway beams. It is to be verified that the scantlings and arrangements are in accordance with approved plans.
3.2.7 All ropes used in the load path of the lifting appliance are to be examined in order to verify that:
Ropes that are supplied by a manufacturer not approved by LR may require further testing in the presence of the Surveyor before they can be accepted.
3.2.8 All loose gear for the installation is to be examined in order to verify that:
3.2.9 The lifting appliance is to be tested as required by Ch 12, 1 Testing. Cut-outs, controls and similar devices are to function correctly. After testing, the installation, including the supporting structure, is to be examined for deformation or distortion to the satisfaction of the Surveyor.
3.2.10 For certification purposes, factory testing of cranes cannot be accepted as an alternative to onboard testing after installation.
3.2.11 The Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1), together with the Certificate of Test and Thorough Examination of Lifting Appliances (LA.2) may be issued upon satisfactory completion of the above procedures.
3.2.12 When it is intended to build lifting appliances for certification or classification with LR, constructional plans and all necessary particulars relevant to the lifting appliance as detailed in the Code (see Ch 1, 3 Plans and information to be submitted) are to be submitted for approval before the work is commenced. Any subsequent modifications or additions to the scantlings, arrangements or equipment shown on the approved plans are also to be documented and submitted for approval.
3.3.1 Where LR is requested to issue certification either to replace existing certification issued by another authority or because the original certification issued by another authority is lost or no longer valid, the following procedure is to be adopted:
3.3.2 The Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1), together with the Certificate of Test and Thorough Examination of Lifting Appliances (LA.2) may be issued upon satisfactory completion of this procedure.
3.4.1 It is a statutory requirement of most National Authorities that, following certification at the Initial Survey, the equipment is thoroughly examined regularly to maintain the validity of the certification. The interval between thorough examinations is to be not greater than 12 months, see Table 12.3.3 Intervals between Periodical Thorough Examinations. However, the Owner is also to ensure that they comply with any statutory requirements in this respect.
Note 1. Annual Thorough Examinations are to be held once in every 12-month period, unless otherwise stated by the ship�s Flag Administration.
Note 2. The thorough examination of the appliances and their associated equipment by a competent person shall be documented and shall be made available to the attending Surveyor.
3.4.2 The procedure to be adopted at Periodical Thorough Examinations is as follows:
| Item | Limits | Remarks |
| Structural members | 10% maximum at any point, based on the material thickness | � |
| Loose gear | 5% on any diameter | Item may not be able to sustain the proof load |
| 2% on any diameter of a pin in a hole | ||
| Wire ropes | Wire ropes may become unfit for service due to a number of factors: visible broken wires, change in diameter, strand fracture, deformation, damage and corrosion, both internal and external. The discard criteria will vary with the type of construction and rope size. In the absence of any criteria issued by the rope manufacturer, reference must be made to ISO 4309 where clear discard criteria are given | � |
| Item | Survey | ||
| General note | The thorough examination shall take into account the designer�s/manufacturer�s maintenance and inspection instructions and recommendations. | ||
| 1. | Certification | (a) | Check that certification, in the form of a Register of Ship�s Lifting Appliances and Cargo Handling Gear or Cargo Gear Register Book issued by a competent body, exists for the rigs to be examined. |
| (b) | Check the Register for any outstanding endorsements, recurring problems, down-ratings, etc. | ||
| If there is no evidence that the rigs have ever been certified, the thorough examination is to be declined and LR�s certification services for existing rigs may be offered | |||
| (c) | Check the Register for any repairs or modifications. | ||
| (d) | Check the maintenance records. | ||
| 2. | Arrangements | Check that arrangement of loose gear, rigging, guys, mast stays, etc. is as shown in Cargo Gear Particulars Book or Rigging Plan. | |
| 3. | Derrick boom and mast fittings | (a) | Inspect Iugs, fittings, brackets, etc. at derrick head and mast head. |
| (b) | Withdraw and inspect goosenecks, trunnion fittings, etc. together with their pins. | ||
| (c) | Withdraw other pins and inspect mast head span swivels, tumblers, etc. | ||
| (d) | Check pins for deformation, wear, scoring or other defects. | ||
| (e) | Inspect any independent anchorages for heel blocks. | ||
| (f) | Check efficiency of lubrication to swivels, goosenecks, trunnions, etc. | ||
| 4. | Fittings on deck | (a) | Inspect deck eyeplates, cleats, wire rope stoppers, etc. used in normal working, as indicated by the Master or Officer in charge, for wear or deformation. |
| (b) | Check weld attaching eyeplates to deck. | ||
| 5. | Derrick boom | (a) | Inspect the structure for condition of coating. Inspect for corrosion. (Where this is suspected, paint is to be removed as necessary.) Special attention is to be paid to the part of the boom which comes into contact with the crutch or housing. |
| (b) | Hammer test boom and, if then considered necessary, check thickness by ultrasonic testing or other suitable methods that do not affect the material or condition of the boom. | ||
| (c) | Look for any scars or dents and check that boom is not bent. | ||
| (d) | Where appropriate, check condition and free movement of the head and heel fittings. Where considered necessary, the boom may be manoeuvred through all its working positions. | ||
| 6. | Blocks | (a) | Verify that blocks are of the appropriate Safe Working Load for the position in which they are rigged and properly certificated. |
| (b) | Block inspection may be carried out on board the ship, provided the necessary facilities are available. Where repair of the block is necessary, it is to be carried out in a properly equipped workshop. | ||
| (c) | Sheaves and pins are to be removed, but sheaves forming an integral part of the derrick boom may be examined in situ. | ||
| (d) | Load bearing parts of the block, including head fittings, are to be cleaned (the paint being removed where necessary) and inspected for signs of excessive or uneven wear, cracks, lack of lubrication or scoring of the rope groove. | ||
| (e) | The nut or collar of the shank or swivel head fittings is to be inspected to check that it is securely fastened and free from visible defects. The shank should turn freely by hand and wear is not to be excessive. The shank is to be removed if required. | ||
| (f) | Cheek and partition plates are to be examined for any signs of buckling, distortion, cracks, ovality in pin holes and sharp edges. | ||
| (g) | If any repair affects the strength of the block, or if a certificate of test is not available, or if the unique identification mark is illegible, the block is to be re-tested and certified. | ||
| 7. | Shackles, links, rings, hooks, triangle plates, etc. | (a) | Check that loose gear items can be identified against appropriate certificates (LA.3 or equivalent). |
| (b) | Examine under proper conditions and check for cracks, deformation, wear, wastage or other defects. Items are to be free from paint, grease, scale, etc. | ||
| (c) | Confirm that the material is recorded on the test certificate. The certificate should distinguish between mild steel, higher tensile steel and alloy steel. | ||
| (d) | Deformed shackles or shackle pins shall be replaced. | ||
| (e) | If the shackle pin is renewed, the whole shackle is to be re-tested and certified. | ||
| 8. | Wire ropes | (a) | Confirm that appropriate wire ropes certificates are on board (LA.4 or equivalent). |
| (b) | Check the general condition of ropes by examining as much of their length as is possible. | ||
| (c) | Check for broken or worn wires. Check for any signs of internal and external corrosion. Check for changes in rope diameter. Check for signs of any deformation (e.g. kinks, birdcaging, etc.), or of thermal damage. In general, the rope is to be replaced immediately if any of the discard criteria in ISO 4309 are exceeded. | ||
| (d) | Inspect rope terminations, splices, end fittings, etc. with particular attention to broken wires at ferrule connections. Any serving on splices is to be removed for the examination. | ||
| (e) | Liverpool splices are to be rejected on any rope where the ends are not secured against rotation. | ||
| (f) | Before re-rigging ensure that the wire rope has been lubricated. | ||
| 9. | Natural and man-made fibre ropes | (a) | Confirm that appropriate fibre ropes certificates are on board (LA.5 or equivalent). |
| (b) | Survey condition of rope. | ||
| (c) | Check for external chafe and cutting and for internal wear between the strands. | ||
| (d) | Check for local or general deterioration of natural fibre ropes due to mildew or rot. | ||
| (e) | Check ropes for chemical attack or other contamination. | ||
| 10. | Chains | (a) | Confirm that appropriate chain certificates are on board (LA.3 or equivalent). |
| (b) | The chain is to be taken to a suitably equipped workshop for examination and examined after removal of paint, grease, scale, etc. and wire brushing. | ||
| (c) | Check for deformation, wear or other defects. If links require renewal, the chain is to be suitably heat-treated and re-tested. Replacement links are to be of equivalent material and strength to the original. | ||
| (d) | Confirm that the material is recorded on the test certificate. The certificate should distinguish between mild steel, higher tensile steel and alloy steel. | ||
| 11. | Re-testing | (a) | Loose gear is to be proof tested if repairs have been carried out which affect its strength or if certificates are not available. |
| (b) | Re-testing of the derrick is necessary at 5-yearly intervals, and after repairs have been carried out affecting its strength or otherwise as required by the Surveyors. | ||
| (c) | If a component part of the derrick, such as a derrick heel pin, has been replaced, re-testing is not called for if the component has been tested individually to the resultant load which would have been imposed upon it if it had been tested in situ. | ||
| (d) | Where the repaired or renewed item has not been tested, the derrick is to be re-tested. | ||
| (e) | The test is also to demonstrate the effectiveness of limit switches, etc. | ||
| 12. | Masts, derrick posts, guy posts, etc. and structure in way | The Periodical Survey requirements for classification are to be complied with, see Pt 1, Ch 3 Periodical Survey Regulations of the Rules and Regulations for the Classification of Ships, July 2022. | |
| Item | Survey | ||
| General notes | These requirements should, in general, also be applied to derrick cranes. |
The thorough examination shall take into account the designer�s/manufacturer�s maintenance and inspection instructions and recommendations.
Slew bearings used on offshore cranes in some jurisdictions (including the North Sea) should either be subject to periodic removal, strip-down and examination or be subjected to a system of in situ condition monitoring. Both possibilities are to be agreed with a competent person (CP).
The period between removal and examination is to be agreed with the competent person and will depend on the type of bearing fitted. The minimum is usually every three years for basic bearings where no securing device (retainers which would prevent the crane from toppling off its pedestal in the event of a complete bearing failure) is fitted and which have no condition monitoring system fitted.
Upon removal of the bearing, the extent of the examination is to be agreed with the competent person.
However, LR would expect the following to be included, as a minimum:
Any refurbishment or repair must be done with the agreement of the bearing manufacturer and the competent person. The bearing is not to be replaced on the crane until a reassembly certificate has been issued by the competent person
.
If, in the opinion of the competent person, the original strength and capacity of the bearing has been compromised, the bearing is not to be put back into service.
The competent person is to review the results of all of the above and decide whether the slew bearing is fit to continue in service, or whether a more detailed examination is required or if replacement is necessary.
Other jurisdictions may have other requirements and these are to be followed as appropriate, but the requirements for ship crane slew bearings in (5) above are to be followed as a minimum.
Any requirements of the National Authority (i.e. Flag State) and/or Coastal State Authorities are required to be complied with.
| Item | Survey | ||
| General note | The thorough examination shall take into account the designer�s/manufacturer�s maintenance and inspection instructions and recommendations. | ||
| 1. | Certification | (a) | Check that certification, in the form of a Register of Ship�s Lifting Appliances and Cargo Handling Gear or Cargo Gear Register Book issued by a competent body, exists for the lifts and ramps to be examined. |
| (b) | Check the Register for any outstanding endorsements, recurring problems, down-ratings, etc. | ||
| If there is no evidence that the lifts or ramps have ever been certified, the thorough examination is to be declined and LR�s certification services for existing appliances may be offered. | |||
| (c) | Check the Register for any repairs or modifications. | ||
| (d) | Check the maintenance records. | ||
| 2. | Arrangements | Check that the reeving of wire ropes, chains or the arrangement of hydraulic cylinders is as shown on the reeving diagram or appropriate plans. Check marking on ramps of lifts with respect to the ship's loading booklet and the Register of Ship's Lifting Appliances and Cargo Handling Gear. | |
| 3. | Sheaves, sprockets, guide rollers, axle pins and bearings, etc. | (a) | Determine that sheaves, sprockets and guide rollers, etc. are free from cracks or scores and that they are free to rotate. |
| (b) | Survey rope grooves for scoring or uneven wear, and sprockets for signs of abnormal wear, hooking, etc. | ||
| (c) | Check that lubrication arrangements are in working order. | ||
| (d) | Check axle pins and bearings with regard to deformation and excessive wear, and the security of the pins. | ||
| 4. | Wire ropes | (a) | Confirm that appropriate wire ropes certificates are on board (LA.4 or equivalent). |
| (b) | Check the general condition of ropes by examining as much of their length as is possible | ||
| (c) | Check for broken or worn wires. Check for any signs of internal and external corrosion. Check for changes in rope diameter. Check for signs of any deformation (e.g. kinks, birdcaging, etc.), or of thermal damage. In general, the rope is to be replaced immediately, if any of the discard criteria in ISO 4309 are exceeded. | ||
| (d) | Inspect rope terminations, splices, end fittings, etc. with particular attention to broken wires at ferrule connections. Any serving on splices is to be removed for the examination. | ||
| (e) | Before re-rigging ensure that the wire rope has been lubricated. | ||
| 5. | Chains | (a) | Confirm that appropriate chain certificates are on board (LA.3 or equivalent). |
| (b) | Inspect the chain, which is to be sufficiently free from grease and scale, etc. to enable a satisfactory examination to be made. | ||
| (c) | Check for deformation, wear or other defects. If links require renewal, the chain is to be suitably heat-treated and re-tested. Replaced links are to be of equivalent material and strength to the original. | ||
| (d) | Confirm that material is recorded on the test certificate. The certificate should distinguish between mild steel, higher tensile steel and alloy steel. | ||
| 6. | Hydraulic cylinders, winches, etc. and attachments | (a) | Check condition of machinery systems. |
| (b) | Check for leaks and check condition of hydraulic pipes. | ||
| (c) | Check piston rods, pivot pins and bearings, etc. for excessive wear and deformation. | ||
| (d) | Determine that sheaves are free from cracks, scores, or uneven wear and they are free to rotate. | ||
| (e) | Check that mounting brackets are free from deformation, cracks or damage. | ||
| (f) | Check systems, such as limit switches and slack rope detection systems. | ||
| (g) | Check fasteners, pins, gear boxes, shafts, bearings, lubrication, etc. | ||
| (h) | Check condition of brake (e.g. pads, brake linings). | ||
| 7. | Main pivots, articulations, slewing bearings (if fitted), etc. | (a) | Check that main pivots and bearings are free from excessive play. |
| (b) | Check that bearing surfaces are free from scoring, pitting, etc. | ||
| (c) | Check that pivot pins do not have excessive wear or deformation, and the security of the pins is sound. | ||
| (d) | Check that lubrication arrangements are in working order. | ||
| 8. | Structure and general | (a) | Check structural bolts for tightness. Where bolts have been replaced, they are to be of the same type, size and quality as previously fitted. |
| (b) | Check main welds for cracks. Initially by visual examination but NDE can be used at the Surveyor�s discretion. | ||
| (c) | Inspect the structure for condition of coating. Inspect load bearing structure for corrosion, removing paint and carrying out hammer tests as necessary. If considered necessary, the thickness of structural items is to be checked by ultrasonic testing or other suitable methods that do not affect the material or condition of the structure. | ||
| (d) | Check load bearing plating and main structural members for cracks and any signs of local indentation, buckling or unfairness. | ||
| (e) | Check structure in way of any stowage locks for wastage, cracks, deformation, etc. | ||
| 9. | Shackles, links, etc. | (a) | Check loose gear items can be identified against appropriate certificates (LA.3 or equivalent). |
| (b) | Check for cracks, deformation, wear, wastage or other defects. Items are to be free from paint, grease, scale, etc. | ||
| (c) | Confirm that the material is recorded on the test certificate. The certificate is to distinguish between mild steel, higher tensile steel and alloy steel. | ||
| (d) | Deformed shackles or shackle pins shall be replaced. | ||
| (e) | If the shackle pin is renewed, the whole shackle is to be re-tested and certified. | ||
| 10. | Rope drums | (a) | At least three turns of wire rope are to remain on the drum in operating positions. |
| (b) | Check the effectiveness of wire rope anchorages. | ||
| (c) | Check drum for cracks and for defects liable to damage the rope. | ||
| (d) | Check the effective working of any fleeting device fitted. | ||
| (e) | Check drum flanges for bending or distortion. This is particularly appropriate for multi-layer spooling drums. | ||
| 11. | Hydraulic arrangements | (a) | Check hydraulic hoses, pipes, couplings, actuators, filters, valves, measuring devices, control blocks and other hydraulic components for leakage and/or damage. |
| (b) | Check hydraulic pumps and motors for leakage and/or damage. | ||
| (c) | Check hydraulic accumulators for leakage, deformation and/or other damage. | ||
| (d) | Check pre-fill pressure of the hydrogen bottles, as applicable. | ||
| (e) | Check for correct oil levels. | ||
| 12. | Operating locks, stowage locks, safety guards, etc. | (a) | Check that operating locks, safety guards and stowage locks operate effectively. |
| (b) | Check locking pins on latches, etc. and their respective location bearing parts for abnormal wear or deformation. | ||
| (c) | Ensure that hydraulic actuating cylinders, etc. are free from leaks, wear and abnormal deformation. | ||
| (d) | Ensure that mounting brackets, etc. are effective and securely attached to the ship or lift structure. | ||
| 13. | Guides | (a) | Check that the guides do not have excessive wear or deformation and that joints are secure. |
| (b) | Check that brackets attaching guides to ship structure are effective and in good order. | ||
| 14. | Seals | Where weathertight seals are fitted, their general condition is to be satisfactory and their effectiveness is to be checked using a water spray test or other suitable method. | |
| 15. | Electrical and control arrangements | (a) | Check the operator station and other operating arrangements for suitable condition. |
| (b) | Check operation of audible and visual warnings (as applicable). | ||
| (c) | Check electrical arrangements in general and cabling for state and secure connection. | ||
| (d) | Check effectiveness limit of switches. | ||
| (e) | Check condition of electric motors (as applicable). | ||
| (f) | Check for safe operational behaviour as required by the instructions for use. | ||
| (g) | Conduct earthing test, e.g. megger test. | ||
| 16. | Re-test | (a) | Re-testing of the lift or ramp is necessary at 5-yearly intervals, or as required by the National Authority, and when modifications and repairs have been carried out affecting the strength or as required by the Surveyor. |
| (b) | It is essential that the lift or ramp is operated at each thorough examination throughout the full operational range for each mode of operation and to check that the limit switches, interlocks, guards and safety devices operate satisfactorily. | ||
3.4.3 In carrying out the thorough examination of the installation, parts which are found to be worn or corroded to a significant degree are to be replaced or repaired as appropriate. For guidance purposes, generally acceptable levels of weardown are given in Table 12.3.4 Limits of weardown and corrosion, but earlier repair may be required where the circumstances warrant such action.
3.4.4 When no certification at all can be produced for the lifting appliances to be examined the periodical thorough examination is to be declined. However, certification can be issued subject to the procedures in Ch 12, 3.3 Initial Survey of existing installations being satisfactorily completed.
3.4.5 The detailed requirements for survey of lifting appliances and associated loose gear are given in the following Tables:
| Item | Survey | ||
| General note | The thorough examination shall take into account the designer�s/manufacturer�s maintenance and inspection instructions and recommendations. | ||
| 1. | Certification | (a) | Check that certification, in the form of a Register of Ship�s Lifting Appliances and Cargo Handling Gear or Cargo Gear Register Book or national forms issued by a competent body, exists for the passenger lifts to be examined. |
| (b) | Check the Register for any outstanding endorsements, recurring problems, down-ratings, etc. | ||
| If there is no evidence that the lifts have ever been certified, the thorough examination is to be declined and LR�s certification services for existing appliances may be offered. | |||
| (c) | Check the Register for any repairs or modifications. | ||
| (d) | Check the maintenance records. | ||
| 2. | Arrangements | (a) | Check that the reeving of wire ropes and chains and the arrangement of hydraulic cylinders are as shown on the appropriate plans. |
| (b) | Check that the plate indicating the allowable load mounted inside the lift is in agreement with the appropriate plan(s) and as indicated in the Register of Ship�s Lifting Appliances and Cargo Handling Gear. | ||
| 3. | Sheaves, sprockets, guide rollers, axle pins and bearings, etc. | (a) | Determine that sheaves, sprockets and guide rollers, etc. are free from cracks or scores and that they are free to rotate. |
| (b) | Survey rope grooves for scoring or uneven wear. Survey sprockets for signs of abnormal wear, hooking, etc. | ||
| (c) | Check that lubrication arrangements are in working order. | ||
| (d) | Check axle pins and bearings with regard to deformation and excessive wear, and the security of the pins. | ||
| 4. | Wire ropes | (a) | Confirm that appropriate wire ropes certificates are on board (LA.4 or equivalent). |
| (b) | Check the general condition of ropes by examining as much of their length as is possible | ||
| (c) | Check for broken or worn wires. Check for any signs of internal and external corrosion. Check for changes in rope diameter. Check for signs of any deformation (e.g. kinks, birdcaging, etc.), or of thermal damage. In general, the rope is to be replaced immediately if any of the discard criteria in ISO 4309 are exceeded. | ||
| (d) | Inspect all rope terminations, splices, end fittings, etc. with particular attention to broken wires at ferrule connections. Any serving on splices is to be removed for the examination. | ||
| (e) | Before re-rigging ensure that the wire rope has been lubricated. | ||
| 5. | Chains | (a) | Confirm that appropriate chain certificates are on board (LA.3 or equivalent). |
| (b) | Inspect the chain, which is to be sufficiently free from grease and scale, etc. to enable a satisfactory examination to be made. | ||
| (c) | Check for deformation, wear or other defects. If links require renewal, the chain is to be suitably heat-treated and re-tested. Replaced links are to be of equivalent material and strength to the original. | ||
| (d) | Confirm that the material is recorded on the test certificate. The certificate should distinguish between mild steel, higher tensile steel and alloy steel. | ||
| 6. | Hydraulic arrangements | (a) | Check hydraulic hoses, pipes, couplings, actuators, filters, valves, measuring devices, control blocks and other hydraulic components for leakage and/or damage. |
| (b) | Check hydraulic pumps and motors for leakage and/or damage. | ||
| (c) | Check hydraulic accumulators for leakage, deformation and/or other damage. | ||
| (d) | Check pre-fill pressure of the hydrogen bottles, as applicable. | ||
| (e) | Check for correct oil levels. | ||
| 7. | Hydraulic cylinders, winches, etc. and attachments | (a) | Check condition of machinery systems. |
| (b) | Check for leaks and check condition of hydraulic pipes. | ||
| (c) | Check piston rods, pivot pins and bearings, etc. for excessive wear and deformation. | ||
| (d) | Determine that sheaves are free from cracks, scores and uneven wear and that they are free to rotate. | ||
| (e) | Check that mounting brackets are free from deformation, cracks and damage. | ||
| (f) | Check fasteners, pins, gear boxes, shafts, bearings, lubrication, etc. | ||
| 8. | Landing and car doors | (a) | Check that the landing and car doors operate satisfactorily. |
| (b) | Check that interlocks on the doors operate effectively. | ||
| (c) | Inspect the door and check that its fire-resisting capacity is unimpaired. | ||
| 9. | Car and counterweight | (a) | Examine the car and counterweight for damage which could affect their operating efficiency or carrying capacity. |
| (b) | Check that brackets for sheaves, guide rollers, wire terminations, etc. are secure and in good order. | ||
| (c) | Inspect the car, including the car frame, and check that the fire-resisting capacity of the car is unimpaired. | ||
| 10. | Lift trunk and well | (a) | Check that the lift trunk and well are free from debris or damage which could impair the satisfactory operation of the lift. |
| (b) | Check that trunk has not been damaged, is suitably ventilated and is totally enclosed such as to prevent passage of smoke and flame from one deck to another. | ||
| 11. | Guides and buffers | (a) | Check that the car and counterweight guides are not worn or distorted and that the joint plates are secure |
| (b) | Check that the brackets attaching guides to the trunk are in good order | ||
| (c) | Check that buffers are in good order and supports are sound | ||
| 12. | Over-running devices and brakes | Check that over-running devices and brakes (e.g. pads, brake linings) are operating satisfactorily and are in good order. | |
| 13. | Safety gear | Check that the safety gear for preventing the car from falling is secure and in good order. A test of the safety gear is to be carried out to demonstrate its effectiveness. | |
| 14. | Safety equipment | (a) | Check that escape hatches, ladders, etc. are free from obstruction and in good order. |
| (b) | Check that the emergency telephone and warning system operate satisfactorily. | ||
| (c) | Check that warning notices, etc. are legible and secure. | ||
| 15. | Electrical and control arrangements | (a) | Check operation of audible and visual warnings (as applicable). |
| (b) | Check electrical arrangements in general and cabling for state and secure connection | ||
| (c) | Check effectiveness of limit switches (as applicable). | ||
| (d) | Check condition of electric motors (as applicable). | ||
| (e) | Check for safe operational behaviour as required by the instructions for use. | ||
| (f) | Conduct earthing test, e.g. megger test. | ||
| 16. | Re-test | (a) | Re-testing is necessary at 5-yearly intervals, or as required by the National Authority, and when modifications and repairs have been carried out affecting the strength, or as required by the Surveyor. |
| (b) | It is essential that the lift is operated at each annual thorough examination to check that the limit switches, interlocks, and safety devices operate satisfactorily. | ||
3.4.6 In determining the extent of the examination or dismantling, due regard is to be given to the standard of maintenance, state of lubrication and degree of use of the appliance.
3.5.1 Where requested by the Owner, LR is willing to carry out a General Examination of the lifting appliances with a view to deferment of the Thorough Examination, provided:
3.5.2 The General Examination is to take the form of a visual inspection of the lifting appliances, but the Surveyor may at his discretion require components to be dismantled for more thorough inspection where considered necessary.
3.5.3 Many national authorities do not permit the deferment of Annual Thorough Examinations. Where permitted, it will be for no more than two months. This may also be unacceptable to some port authorities.
3.5.4 Such deferments will not extend the due dates of subsequent Periodical Surveys.
3.5.5 The deferment of the load test required every five years is not permitted.
3.5.6 Any aspects of the installation which are not considered suitable to continue in use during the period of deferment are to be noted in the endorsement to the Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1).
3.5.7 Following inspection of the lifting appliances and the Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1), a factual report is to be issued and this is to include a statement, where applicable, of the authority for granting the deferment.
3.6.1 The stated cause of the damage is to be reported, together with details of the proposed repair and the extent of repair and re-testing actually carried out at the time. Where it is not possible to carry out, or to complete, the repair at the time, a suitable entry is to be made in the Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1) that the equipment is not to be used until satisfactory repairs and tests are completed.
3.6.2 Replacement items of loose gear are to be accompanied by a manufacturer�s certificate or be tested, marked and certified (LA.3) by the Surveyor.
3.6.3 Replacement ropes are to be accompanied by a manufacturer�s certificate or be tested, marked and certified (LA.4 or 5) by the Surveyor.
3.6.4 Care is to be exercised to ensure that the correct materials are used in the repairs. Reference may need to be made to the relevant plan approval office for confirmation.
3.6.5 The practice of allowing a damaged derrick or crane to continue in use at reduced capacity is not recommended, given the resulting inherent weakness of the structure and, in the case of a crane jib or derrick boom, the difficulty of assessing the effect of any indentation or unfairness upon the load carrying capacity.
3.6.6 Where the crane or derrick is structurally sound but damage has been sustained by the hydraulic system, the appliance may be temporarily down-rated until it can be repaired. In this case, the appliance may lift the maximum load of which it is capable. This would be considered as the new test load and the reduced SWL assigned accordingly. The Register of Ship�s Lifting Appliances and Cargo Handling Gear (LA.1) is to be endorsed with the reduced capacity and a new LA.2 issued, until such time as the full capacity is reinstated after repair and test.
3.6.7 The equipment is to be re-tested in accordance with Ch 12, 1.11 Re-testing after the repair has been completed and the Register of Ship�s Cargo Gear and Lifting Appliances endorsed.
3.7.1 Where the lifting appliances are to be assigned a class notation, the Initial Surveys are to be carried out in accordance with Ch 12, 3.2 Initial Survey of new installations or Ch 12, 3.3 Initial Survey of existing installations as appropriate. When the required reports on completion of the survey have been received and approved by the Classification Committee, certificates of classification of the lifting appliances will be issued.
3.7.2 It is the responsibility of the Owner to ensure that all thorough examinations necessary for the maintenance of class are carried out at the proper time and in accordance with the instructions of the Classification Committee. LR make available to an Owner timely notice about forthcoming periodical thorough examinations by means of a Quarterly Listing of Surveys by means of computer access via Class Direct website. The omission of this notice, however, does not absolve the Owner from his responsibility to comply with LR�s requirements for the maintenance of class.
3.7.3 Periodical Thorough Examinations for the maintenance of class are to be carried out by LR�s Surveyors in accordance with Ch 12, 3.4 Periodical Thorough Examinations. Certificates of class maintenance in respect of completed Periodical Thorough Examinations will be issued to Owners on application.
3.7.4 It should be noted that the intervals between Periodical Thorough Examinations of lifting appliances are determined by Statutory Regulations and deferments cannot exceed those permitted by Ch 12, 3.5 Deferment of surveys.
| Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract. |
