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USE AND MAINTENANCE MANUAL - SECTION 8
9) Broken pins
This problem usually occurs as a result of corrosion in the chain joints. Since
the pins of a single chain are subject to the same load and corrosion
conditions, one failure is usually followed by more. Experience has shown
that this type of failure is not always easily recognised as there are no evident
changes in the chain conditions, especially in the initial stage.
Checking for chain wear
(Check the cause of the malfunction before installing the new chain)
Lifting chain
Manufacturer: REGINA – Model: AL544
A1 = 19.1 mm ; Dp = 5.09 mm ; P = 15.875 mm ; S = 2.04 mm ; Hi = 12.83
mm
Elongation:
Measurement of chain slightly tightened on straight sections 1/5 to 1/15 of
the total length. Maximum elongation allowed: 2% along the most worn
section.
Wear of plate profiles:
Where the phenomenon is most noticeable: maximum permitted height
reduction of 2.5% on one side only, 4% if on two sides, in relation to the initial
height.
Wear on the side of the chain:
Replace the chain if the protruding part of the pin heads is worn down by
more than 25% or if the outer side is worn down by more than 20% of its
thickness.
STOCK PICKER ELEVAH 65-80 MOVE PICKING – Rev. 09_2019
Page 8-14
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