Terminal Gear (9/2014)
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
Towline & Terminal Gear 33 CFR Towline and terminal gear for towing astern… 33 CFR Towline and terminal gear for towing along side and pushing ahead…
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 &
Linehaul Towing
Fleeting
Hawser Towing
Ship Assist
Page 6 Terminal Gear
Towline for Towing Astern 33 CFR (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…
Wire Rope
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
Eye Splice
Thimble
Damaged Wire Rope
Improper spooling (Bird-Nesting)
Clamp/ Thimble Applications
Poured Socket
Tow-Line Rope
6/samsonretirement.pdf
Sampson Rope Link Sampson Rope Link Product quality Chafe Gear Field trial results
Tow-Line Rope
Thimble
Making Up Tow
Ratchet (tighten wires)
Deck Gear Pelican hook Handle Gear Keeper Tooth pick
Rigging Wire Must Remain Serviceable (33 CFR )
Facing Up (Capstan, Winches, Wire) Capstan secures boat to push string Winches tighten wing wires Wires provide additional security Winches secure barge to boat
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
HARDWARE AND TACKLE Page 6
Crosby 85 ton Towing Shackle As per 33 CFR (b)(2)
Fish Plate and Towing Shackles
Towing Hawsers
Tow Hawser Strength Characteristics
DECK AND TOWING WINCHES
Wire Socket integrity Thimble and line conditionSplice Condition FoundationActuator condition- fluid lines, piston rod Brake Band
Split drum tow winch What is the examiner looking for? Windlass Brake Band
Level wind shown on tow winch Level Wind
Small Deck Winch
Split drum tow winch
Wire Tow Underway Helps Keep tow/Centerline Tow Stern RollersTowTexas Bar
Wire tow (Notice chafing gear)
Tow Wire Cantenary
Stern of a hawser boat No winch, towing bitt and capstan only
Tow made up on hawser Notice the chafing gear stern bulwark
Winch
Barge Retrieval
Orville Hook
U.S. Coast Guard Questions?