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| 1.5. ROPE DAMAGES DIAGNOSIS GUIDE |
Regardless of the quality of the rope, rope life depends on the following:
a. Rope features,
b. Place of use,
c. Equipments related with,
d. Way of use
Apart from the above factors, factors making ropes out of service or effect their lives as follows:
a. Unappropriate rope composition, strength of wire break and diameter.
b. Unappropriate wire features (galvanized-black)
c. Operated over abrasive hitches and lifting them by making them contact loads with sharp corners.
d. Lubrication type not compliance with conditions of use.
e. Operating them on unappropriate reels and drums.
f. Operating them on the top of the other and crosswise on drum.
g. Operating them on the unaligned drums and reels,
h. Operating them on unappropriate grooved drums and reels.
i. Putting them out of reels.
j. Contacting with humid and acid environments.
k. Using of unappropriate connection parts.
l. Allowing inversion.
m. Exposing to high temperature.
n. Making gam.
o. Overloading in unappropriate conditions.
p. Damaged by abrasive parts penetrating in wires and strands.
Following points must be taken into account while examining a rope:
a. Decreasing in rope diameter.
b. Abrasions in internal and external wires.
c. Steps of ropes.
d. Shock traces in strands and wires.
e. Scraping traces.
f. Corrosion.
g. Broken wires and way of breaking.
Above points must be observed attentively and giving great importance to experience. If possible, in examination the way of the rope must be followed up and unappropriate points must be removed on by one. An attentive and conscious eye will not have difficulties in finding reason of a defect. Some information that may be helpful in this respect is given in Table-7.
Table-7. Rope damages and their possible causes
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