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Question #578

Unless the manufacturer specifies otherwise, the permissible wear limits for sling hooks are:

O ile wytwórca nie określi inaczej dopuszczalne kryteria zużycia haków przy zawiesiach to:

a
a 5% increase in throat opening and 10% wear at the throat

rozwarcie o 5% i wytarcie gardzieli o 10%

Correct answer

b
a 20% increase in throat opening and 10% wear at the throat

rozwarcie o 20% i wytarcie gardzieli o 10%

c
a 1% increase in throat opening and 1% wear at the throat

rozwarcie i wytarcie gardzieli o 1%

d
hook dimensions do not change during use

wymiary haka nie zmieniają się w trakcie eksploatacji

Why?

The hook throat (gardziel haka) limits are a 5% increase in opening and a 10% reduction in thickness at the worn section, compared with original dimensions. Exceeding either limit requires rejection; a 20% opening increase is excessive.

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