Release gear test is executed as a controlled procedure to protect people and equipment while producing class-ready evidence.
-
Permits & safety controls: issue permit-to-work, conduct a toolbox talk, verify comms, set a hard exclusion zone, and tag-out relevant controls. Define abort criteria before start.
-
Pre-inspection: verify hook bodies, pins/bushings, linkage rods/cables, hydrostatic interlock, limit switches, sheaves, falls, and winch brake condition. Confirm maker settings, clearances and alignment; check painter, tricing, bowsing, and embarkation arrangements.
-
Off-load test: with weight off the hooks and no personnel in the boat, verify interlocks, two-step operation, and positive re-engagement. Record indicator positions and latch travel.
-
On-load simulation (no personnel): apply controlled load (water-borne or certified deadweight/bags) up to the maker/test value; confirm that premature opening is impossible and release requires the safeguarded sequence.
-
Reset/lock-back: perform a documented reset strictly per maker procedures; verify clearances, indicator positions and synchronisation of both hooks; apply anti-reversal as required.
-
Functional run: lower/hoist, brake holding test, emergency release lock-outs, painter connection; confirm smooth operation and absence of sticking or asymmetric loads.
-
Evidence pack: signed test sheet, measurements, interlock checks, reset checklist, calibration references, dated photo log, and NCR/CAR closures; bundle formatted for PMS and class/flag.
Action:
Crew briefed; zone cleared; permits active. Use approved tools/loads only. Stop on any interlock failure and rectify before retest. Archive evidence in PMS and keep a bridge “PSC pack.”
Docs:
- IMO MSC.402(96), (maintenance, thorough examination, testing, overhaul and repair of LSA)
- SOLAS III/20, (operational readiness, maintenance and records); maker procedures.
- MSC.1/Circ.1206/Rev.1 (testing and maintenance of lifeboat release gear)