Release gear testing (on-load/off-load) is done with controlled load, verified interlocks and documented reset/lock-back per maker and MSC.1/Circ.1206/Rev.1.
We confirm hook safety, interlocks, correct sequence, and reset/lock-back evidence for class acceptance.
Why it matters: it prevents PSC findings, off-hire incidents and “redo test” demands at survey.
We run it during port calls with PTW, exclusion zone and same-day class-ready documents.
Baltic ports typical: Klaipėda, Riga, Tallinn, Gdańsk/Gdynia (Baltics/Nordics/North Sea).
Included (safe procedure):
- PTW/toolbox talk, comms check, hard exclusion zone, abort criteria.
- Pre-check: hooks, pins/bushings, linkages, hydrostatic interlock, limit switches, falls/sheaves, winch brake.
- Off-load: verify interlocks, two-step operation, positive re-engagement.
- On-load simulation (no personnel): controlled load to maker limits; confirm no premature opening.
- Reset/lock-back: documented reset per maker; confirm indicators and synchronisation of both hooks.
Action:
Docs:
IMO MSC.402(96); MSC.1/Circ.1206/Rev.1; SOLAS III/20. Verify with Class/Flag where applicable.
See:
Release gear testing (on-load/off-load) → Services