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Published byJustice Croft Modified over 9 years ago
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Terminal Gear (9/2014)
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Lesson Objectives State applicable reference materials related to terminal gear on board an Uninspected Towing Vessel (UTV) Determine wire/towline and terminal gear requirements Examine bitts, cleats, winches, capstans Examine terminal gear for a towing operation Name primary focus when examining terminal gear Name primary focus when examining wire rope
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Towline & Terminal Gear 33 CFR 164.74 Towline and terminal gear for towing astern… 33 CFR 164.76 Towline and terminal gear for towing along side and pushing ahead…
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Associated Terminal Gear Line Haul Towing Fleeting Hawser Towing Ship Assist Load Environment Stress Vessel type Fatigue Cargo Geographic's’ Sea State Rivers Ebb/Flow Hazards Gear Limits &
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Linehaul Towing
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Fleeting
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Hawser Towing
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Ship Assist
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Page 6 Terminal Gear
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Towline for Towing Astern 33 CFR 164.74 (a)(3)(i) A record of towline initial breaking strength (a)(3) (iii) Conduct visual inspections (a)(3)(v) … a record of the material condition of the towline when inspected… Once the record lapses for 3 months, not including lay-up, the owner shall retest the towline or remove it from service…
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Wire Rope
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6 Number of strands that make up the rope 19 Number of wires that make up each strand FCFibre core RHRight hand lay OLOrdinary lay FSWR Flexible steel wire rope 6x19 FC RH OL FSWR
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Eye Splice
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Thimble
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Damaged Wire Rope
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Improper spooling (Bird-Nesting)
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Clamp/ Thimble Applications
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Poured Socket
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Tow-Line Rope
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http://towmasters.files.wordpress.com/2009/0 6/samsonretirement.pdf
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Sampson Rope Link Sampson Rope Link Product quality Chafe Gear Field trial results
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Tow-Line Rope
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Thimble
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Making Up Tow
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Ratchet (tighten wires)
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Deck Gear Pelican hook Handle Gear Keeper Tooth pick
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Rigging Wire Must Remain Serviceable (33 CFR 164.76.)
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Facing Up (Capstan, Winches, Wire) Capstan secures boat to push string Winches tighten wing wires Wires provide additional security Winches secure barge to boat
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Backing leads pull drag strings moving astern Making Up a Tow Push String Drag String Fore and Aft lines secure barge strings Doubling up on edge couplings provides strength Towing leads pull the drag strings forward
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HARDWARE AND TACKLE Page 6
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Crosby 85 ton Towing Shackle As per 33 CFR 164.74 (b)(2)
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Fish Plate and Towing Shackles
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Towing Hawsers http://denverrope.com/industrial-rope.htm
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Tow Hawser Strength Characteristics
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DECK AND TOWING WINCHES
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Wire Socket integrity Thimble and line conditionSplice Condition FoundationActuator condition- fluid lines, piston rod Brake Band
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Split drum tow winch What is the examiner looking for? Windlass Brake Band
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Level wind shown on tow winch Level Wind
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Small Deck Winch
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Split drum tow winch
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Wire Tow Underway Helps Keep tow/Centerline Tow Stern RollersTowTexas Bar
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Wire tow (Notice chafing gear)
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Tow Wire Cantenary
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Stern of a hawser boat No winch, towing bitt and capstan only
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Tow made up on hawser Notice the chafing gear stern bulwark
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Winch
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Barge Retrieval
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Orville Hook
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U.S. Coast Guard Questions?
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