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USE AND MAINTENANCE MANUAL - SECTION 8
8) Broken plates
This is the result of fatigue failure caused by overloading. Corrosion
phenomena may contribute to this problem.
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.
AERIAL PLATFORM ELEVAH 65-80 ES MOVE – Rev. 03_2019
Page 8-10
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