Anchor (HHP/SHHP) · Anchor & Mooring Equipment
Karm Fork Ø600, Ø500 and Ø350, Towing pins Ø500, Ø450 and Ø350 by Karmøy Winch AS. DNV TA certificate TAS000023X.
| Visual inspection before use | each time before towing operations |
|---|---|
| Greasing of pin/bearing surfaces | per the maker's schedule, commonly at short intervals under frequent use |
| NDT crack inspection | typically annually or per the class/owner's lifting-gear inspection scheme |
| Load test / thorough examination | typically every 4-5 years or per class and flag requirements for towing gear, whichever is more frequent |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Pin diameter wear | renew when diameter reduction reaches the maker's stated limit for this SWL class - typically a small percentage of nominal diameter; confirm the exact figure against the equipment's own certificate |
|---|---|
| Fork bore wear/ovality | renew or re-bush when ovality approaches the maker's stated limit for this SWL class - confirm against the equipment's documentation |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Towage appurtenances of this kind are normally covered under the ship's towage or cargo gear certification; class and flag typically require periodic thorough examination and proof/load testing with certificates retained on board, plus a visual check before each use.
Estimated lifetime: Not a running-hour item - towing pins and forks are life-limited by load cycles, corrosion, and periodic load testing rather than hours; continued service depends on passing the periodic thorough examination/load test, not on an elapsed-hours figure.
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
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