Winch Type 06.10.02
The d‑i Davit International‑Hische Winch Type 06.10.02 is a SOLAS‑approved davit system for launching lifeboats, fast rescue boats or MOB crafts, featuring configurable drive options and a docking head to minimise pendulum motion.
Inspector Detail
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Common issues
- Brake band/lining wear affecting controlled lowering speed
- Gearbox oil leakage or contamination
- Wire drum grooving or wear from repeated fall wear
- Overspeed/centrifugal governor malfunction on the lowering brake
- Manual/emergency handle operation seizing from lack of use
- Corrosion of drum shaft and bearings
Inspection checklist
- Brake function test and lining thickness check
- Gearbox oil level and condition check
- Wire drum and fall inspection
- Overspeed governor test - controlled descent speed check under load
- Manual/emergency lowering operation test
- Bearing and shaft alignment check
- 5-yearly dynamic brake load test at 1.1 x SWL per SOLAS
Service intervals
| Gearbox oil change | per the manufacturer's manual, typically every 2-3 years or on condition |
| Brake lining inspection | annually, at the thorough examination |
| Dynamic brake load test | every 5 years at 1.1 x SWL |
| Overspeed governor test | annually, as part of the operational test |
Typical wear limits
| Brake lining minimum thickness | per the maker's manual - no generic figure available, confirm against the manufacturer's tolerance |
| Drum groove wear | replace or re-machine when the wire seats below flush with the drum flange - confirm against class/maker criteria |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Brake linings/bands
- Gearbox seals and bearings
- Wire drum bearings
- Overspeed governor components (maker-approved only)
- Matched wire fall sets
Safety
- Overspeed or brake failure during lowering can result in free-fall of the survival craft - this is a safety-critical component
- Rotating drum and gear train must remain guarded during operation
- Stored energy in brake spring assemblies
Class survey
This winch is a safety-critical LSA component: class requires annual thorough examination, a 5-yearly dynamic test at 1.1 x SWL, and a governor/overspeed protection test, with all maintenance recorded in the ship's LSA maintenance manual.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Annually: operational test of on-load release gear by positioning the boat partially in water for load support by fall, actuation of release gear, reset and inspection for damage. Every 5 years: overhaul of release system with 110% proof-load test. Inspect release gear before and after operational test; verify hook securing and reset.
Monthly: visual inspection for fraying, kinks, corrosion, broken strands. Annually: wire rope and sheaves for scratches, dents, corrosion, missing lubrication. Every 5 years: wire rope replacement per SOLAS Chapter III required. Lubrication of wires, sheaves and moving parts to be checked.
Annually: brake test by suspension of rated load and verification that brake holds without slippage. For centrifugal brakes: sinking speed against SOLAS formula (max. 1.3 m/s) to be checked. Brake pads to be inspected and replaced when worn. Every 5 years: brake system to be opened and condition thoroughly checked.
Annually: sheaves for wear grooves, wear ring wear, corrosion, incorrect alignment, loose bolts to be checked. A worn or corroded sheave damages new wires and leads to premature wire rope failure. Wear ring thickness to be measured and replaced if necessary. Lubrication to be checked.
Annually: davit structure for corrosion (especially welds), wear, deformation, excessive clearance, cracks to be checked. All bolt locking devices to be verified. Hydraulic cylinders for leakage to be checked. Every 5 years: selective disassembly with NDT (roughness inspection, crack inspection) to be performed. Foundations to be inspected.
Annually: dynamic winch brake test at 110% of Safe Working Load to be performed (simulated by water bag equipment or certified load cells). Every 5 years: comprehensive proof-load test of entire davit, winch, wire rope and hook system at 110% SWL to be performed. System must hold load, show no deformation or damage.
Type-general inspection and maintenance points for this equipment category — not model-specific.
Service & Maintenance
Engine test weekly (min. 5 min). Release hook maintenance annually by approved service (SOLAS MSC.402(96)). GRP hull inspection at docking. 5-year basic survey.
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