Ropeuse Precautions Instructions And Inspections

Use rope-use precautions, instructions, and inspections given in paragraphs 613-2.12.2 through 613-2.14.10 when using or working with ropes. 613-2.12.2 PRACTICES TO AVOID. Avoid the following practices in the use of fiber ropes 1. Observe all standard safety precautions for handling lines under tension. 2. Do not put strains on kinked lines with buckled strands, and do not pull the kink through a block. Coax strands back into place before use. 3. Do not drag lines on the...

Section Fiber Rope

613-2.1 INTRODUCTION 613-2.1.1 613-2.1.2 COMPLEXITY. 613-2.2 FIBER ROPE 613-2.2.1 613-2.2.2 LARGE 613-2.2.3 MANILA AND SISAL 613-2.2.4 SYNTHETIC 613-2.3 FIBER ROPE 613-2.3.1 TWISTED FIBER 613-2.3.2 LARGE LAID 613-2.3.3 PLAIN-LAID 613-2.3.4 CABLE-LAID 613-2.3.5 PLAITED 613-2.3.6 BRAIDED 613-2.3.7 DOUBLE BRAIDED 613-2.3.8 SMALL CORDAGE 613-2.3.9 613-2.3.10 POLYETHYLENE 613-2.3.11 SIGNAL 613-2.4 PRECAUTIONS AND TECHNIQUES FOR THE USES OF ROPES 613-72 613-2.4.1 613-2.4.2 UNCOILING AND 613-2.4.2.1...

Precautions And Techniques For The Uses Of Ropes

Strand Laid Strand Plaited Rope

When properly installed, splices do not seriously affect rope strength. Eye, short, and long splice methods are explained in paragraphs 613-2.5.2 through 613-2.5.12. The eyes in mooring lines are normally 6 to 10 feet in length, depending on the size of the fittings bitts, bollards or cleats used. The rule of thumb for the preferred length of the eye is 5 times the diameter of the fitting. This prevents uneven loading of the eye. 613-2.5.2 EYE SPLICE IN PLAIN-LAID ROPE. The...

Standing Rigging Requirements

Standing rigging is used to support masts and is generally comprised of shrouds supporting the mast athwartships and stays supporting the mast in fore and aft directions. Normally, standing rigging is fabricated using 6 by 19 galvanized improved plow steel wire rope and terminated with poured sockets, Fiege-type connectors, swaged fittings, or manual eye splices as specified. Approved methods for the installation of poured sockets and splices are provided in Section 1 of this...

Criteria For Estimating Used Rope Serviceability

The serviceability of used rope is determined by visual inspection and evaluation based on the criteria presented in paragraphs 613-2.15.2 through 613-2.15.9. 613-2.15.2 ROPE WEAR. Synthetic rope external wear is characterized by a fine nap or fuzz distributed uniformly on strand surfaces. A worn rope with a strength loss of less than 10 percent is illustrated in Figure 613-2-33. Internal wear may be noted as a fuzzed or fused condition between strands. Natural fiber rope...

Note

Swaging of wire rope with fiber core is not recommended. 613-1.11.7 SPLICING. The making of wire rope splices requires mechanical skill and a facility for handling tools. The higher degree of skill and care employed, the more satisfactory the result will be. Those who are entirely lacking in experience shall make several practice splices before attempting to splice a rope which will be subjected to severe conditions in actual use. If the first effort fails to produce a good result, a review of...

Fiber Rope Construction

Rope Cotton And Wood Dwg

Twisted fiber ropes are constructed of natural or synthetic fibers that are twisted into yarns. In the case of synthetics, three yarns are plied together to prevent the fibers from untwisting. These yarns are then grouped together to form strands, with the size and number of yarns in each strand varying according to the strand size required to make the particular rope size. 613-2.3.2 LARGE LAID ROPES. All Navy used fiber ropes 1-3 4 inch in circumference or larger...