Freefall Lifeboat · Lifesaving Appliances (LSA)
The SH-21 is a marine evacuation system designed to meet SOLAS certification standards for crew safety and evacuation. Manufactured by CSSC Luzhou Zhenjiang Marine Auxiliary Machinery Co., Ltd., this system is equipped to ensure compliance with international maritime regulations, including IMO approval and DNV certification. The SH-21 has a specific capacity for personnel as certified by SOLAS and is designed to operate as a reliable evacuation aid in emergency situations. Regular maintenance is crucial for the system's reliability, including weekly engine tests for a minimum of five minutes and annual servicing of the release hook mechanism by an approved service provider. Common issues that may arise include corrosion and blockage of the release hook mechanism, diesel motor starting failures due to infrequent testing, osmotic blistering on the GRP hull after prolonged water contact, and failure of the air supply system valve. Spare parts for the SH-21 are available from the manufacturer or authorized distributors, with a lead time of 2 to 6 weeks. A thorough examination of the system is recommended every five years, and regular inspections of the GRP hull should be conducted during docking.
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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.
Spare parts via CSSC Luzhou Zhenjiang Marine Auxiliary Machinery Co.,Ltd. or authorised distribution partners. Lead time: 2-6 weeks.
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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