12.07.2015 Views

specifica prodotto istruzioni per l'uso e la manutenzione - Beta

specifica prodotto istruzioni per l'uso e la manutenzione - Beta

specifica prodotto istruzioni per l'uso e la manutenzione - Beta

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

5) SELECTION CRITERIAThe following parameters should be carefully considered in choosing the turnbuckle eye:5.A WORKING FORCE LIMITThe tensile stress exerted on the turnbuckle eye should be lower than or equal to the working force limit(WFL) recommended for the item being considered, and shown in Table “A”.5.B CONNECTING PARTMake sure that the connecting part suits the load capacity of the turnbuckle eye.The wire rope or any other component part being used should be of a suitable size (see Table “A”), toprevent cuts.5.C OPERATING TEMPERATURESThe <strong>per</strong>missible o<strong>per</strong>ating tem<strong>per</strong>ature should range between –20 °C and +80 °C.The working force limit will not be guaranteed outside this range.5.D LIFE AND FREQUENCY OF USEThe accessory is <strong>per</strong>fectly serviceable as long as its geometric and physical characteristics remainunchanged.Hence the turnbuckle eye should be rep<strong>la</strong>ced in case of reduced section, deformation, corrosion orconnecting instability.6) NONPERMISSIBLE CONDITIONSThe turnbuckle eyes should not be o<strong>per</strong>ated under the following circumstances:• when the applied force exceeds the <strong>per</strong>missible “WFL”;• when dynamic stresses or swinging loads may result;• when the turnbuckle eyes are o<strong>per</strong>ated under any tem<strong>per</strong>atures other than the <strong>per</strong>missibletem<strong>per</strong>atures;• when the directrix of forces does not develop along the main axis.7) PRELIMINARY TESTSBefore the accessories are o<strong>per</strong>ated and/or assembled, they should be tested by a suitably trained <strong>per</strong>son.• Check the state of the turnbuckle eye; in particu<strong>la</strong>r make sure that it is free from cuts,bends, indentations, abrasions, cracks, irregu<strong>la</strong>r threads, corrosions, sharp burrs, wearor defects resulting from impro<strong>per</strong> storage.• Measure and record the dimensions according to Table “A”.• Check the state of all the parts of the marking.• Make sure that the threads fit.Division of BETA UTENSILI SPA, Via Volta, 18 - 20845 SOVICO (MB) ITALY Tel. +39.(0)39.20771-Fax + 39.(0)39.2010742

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!