Davit System (Lifeboat/Raft) · Lifesaving Appliances (LSA)
Regular maintenance is crucial to ensure the reliability and safety of crew evacuation systems, such as the Rhs.L.21/3,6 04E.04 from Global Davit GmbH. This model is designed for medium capacity personnel transfer and has been certified by SOLAS and approved by IMO, ensuring compliance with international maritime standards. The on-load release gear (OLRG) requires an annual functional test at 1.1 times the safe working load (SWL), followed by a five-year dynamic test as per SOLAS III / MSC.402(96). Wire ropes should be inspected for kinks, corrosion, and broken strands, with replacement necessary if more than 10% of wires are damaged over an 8d length. The braking system must also be regularly checked for wear on the brake lining and to ensure it operates within the SOLAS-mandated lowering speed limits. Additionally, the davit structure should be inspected for corrosion, particularly in areas prone to zinc coating degradation or stainless steel fastener issues. To maintain compliance, all maintenance activities should be meticulously logged, with annual and five-year inspections conducted by authorized personnel. Spare parts for the Rhs.L.21/3,6 04E.04 are available through Global Davit GmbH or their distribution partners, with a lead time of 2-6 weeks. Weekly engine tests and GRP hull inspections during docking further contribute to the system’s reliability.
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What our service work and the manufacturer documentation say about keeping this model running.
Weekly engine test run (min. 5 min). Release hook servicing annually by an approved service provider (SOLAS MSC.402(96)). GRP hull inspection at docking. Five-year thorough examination.
| Winch brake load/proof test | annually, per SOLAS/LSA Code |
|---|---|
| Wire falls | renewed per manufacturer's recommended interval, typically not exceeding 5 years or sooner on condition |
| Davit annual thorough examination | annually (SOLAS III/20) |
| Winch and davit structure overhaul | every 5 years |
| Lubrication of falls, sheaves and pivot pins | monthly or per the planned maintenance system |
| Wire fall broken wires | renewal criterion per the LSA Code and the applicable wire rope standard rather than a single fixed number - confirm against the davit manual |
|---|---|
| Winch brake lining thickness | renewed when approaching the manufacturer's stated minimum - check at each annual survey |
| Winch gearbox oil condition | changed per the maker's interval or when visibly contaminated - inspected at the annual overhaul, no universal figure applies |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Davits fall under the LSA annual thorough examination and 5-year overhaul regime (SOLAS III/20, MSC.1/Circ.1206 as amended). Class/flag will check winch brake test records, wire fall condition reports and davit structural examination documentation.
Estimated lifetime: Davit structure and winch are typically rated for 20+ years of service with proper maintenance and periodic overhaul; wire falls and brake linings are consumables replaced well before that.
Spare parts via Global Davit GmbH or authorised distribution partners. Lead time: 2-6 weeks.
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