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Net sounder winches (Fishing)

Deck Winch (General) · Deck Machinery

Class-certified type (DNV register) · technical data sheet not yet verified​​⁠⁠‍⁠⁠‌‌⁠⁠⁠​‌‍⁠‍​⁠‍

A winch specifically designed for handling cable instead of wire rope. It is typically used to deploy the cable transmitting information from the net sounder which collects data about fish entering the trawl net to the display on the bridge. It is an active winch with pulls up to about 10 tonnes and a choice of frequency controlled electric or low pressure hydraulic drive. Get expert help anytime, anywhere—our global support team is available 24/7 to assist you. Upgrade your systems with tailored retrofit solutions to extend vessel life and boost performance. Explore our training programs to build skills, ensure safety, and maximize operational efficiency. Our Global Customer Support works 24/7 to provide prompt responses, technical expertise and global assistance from key locations in 32 countries. EMEA:+47 33 03 24 07APAC:+65 97 11 24 07AMERICAS:+15 04 303 5244E-mail:

Specifications

Technical data.reference — unverified

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

Pull10 tonnes
Inspection

Inspector Detail

Common issues

  • Cable spooling/level-wind misalignment causing bird-nesting or cable damage
  • Slip ring or rotary joint wear on the net sounder signal path causing intermittent telemetry loss to the bridge display
  • Hydraulic motor or drive seal leakage
  • Brake band/clutch wear from repeated haul cycles
  • Cable insulation damage from chafe against sheaves and rollers
  • Load cell/tension sensor drift affecting automatic tension control
  • Gearbox oil contamination from seawater ingress

Inspection checklist

  • Inspect the net sounder cable for kinks, broken strands, and insulation damage along its full working length
  • Check the slip ring/rotary electrical connection for corrosion and signal continuity
  • Verify the winch brake holds rated load and the clutch engages/disengages cleanly
  • Check hydraulic system pressure and look for leaks at the motor, hoses, and fittings
  • Inspect the level-wind mechanism for correct spooling and wear
  • Check gearbox oil level and condition, take a sample if due
  • Verify tension/load monitoring display against a known test load if practical
  • Inspect the winch foundation bolts and drum bearing condition
  • Confirm the net sounder signal display on the bridge correctly tracks winch payout

Service intervals

Gearbox oil changeannually or per running hours, per manufacturer's schedule
Full-length cable inspectionevery 3-6 months, or before each major fishing season
Slip ring/rotary joint cleaning and continuity checkevery 3-6 months
Brake/clutch adjustment checkevery 3-6 months, more often in heavy-use fisheries
Hydraulic hose and fitting inspectionannually

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Typical wear limits

Cable broken-wire count / diameter reductionretire the cable per the applicable wire rope discard criteria - confirm against class/flag or manufacturer's rope discard standard; this is not a fixed generic figure
Brake lining wearper the Kongsberg service limit for this winch model - inspect against the manufacturer's wear indicator if fitted

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Net sounder cable (correct conductor/insulation type for signal transmission - not a generic wire rope)
  • Slip ring assembly
  • Hydraulic motor seal kit
  • Brake band/clutch friction material
  • Gearbox oil seals
  • Level-wind guide rollers/bearings

Safety

  • High tension on the net sounder cable during haul - stand clear of the bight and cable path
  • Hydraulic system stored pressure - isolate and relieve before opening any hydraulic component
  • Crush hazard at the level-wind and drum during operation - guard and keep hands clear
  • Cable failure under load can whip - do not exceed the rated pull (about 10 tonnes) or bypass tension limiting

Class survey

Note: this record is filed under 'Provision Crane' / 'Deck Cranes' but the actual product is a Kongsberg net sounder winch used to deploy net sounder cable in trawl fishing, not a crane - the content above addresses the winch. On classed fishing vessels, deck machinery of this kind is typically covered under periodic lifting/deck equipment survey requirements including load test and cable condition records, even though it is not a conventional cargo or provision crane.

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