STAGEMAKER®
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VERLINDE reserves the right to alter or amend the above information without notice.
11/2008
10.5.3 Measuring the wear on the chain
This should be done by measuring the dimensions, at several points of the chain, of one link (d) and
(t), and over 11 links (11 t).
Maximum wear allowed :
Minimum link thickness allowed (d) :
4.30 mm
Maximum pitch allowed (t) :
13.10 mm
Maximum length allowed (11 t) :
140.25 mm
)
If these limits are exceeded
, the chain must be replaced immediately
. In this case, the wear
on the guide chain and chain sprocket should also be checked and they should be replaced if
necessary.
)
If a single link is defective in any way whatsoever,
the chain must be replaced
,
A repetitive stop and start at the same point of the chain will create a more important
wear on the 2-3 links which are in the chain sprocket
Never twist the lifting chains
(turning around of the hook block)
10.6 Suspension hook
Removal :
•
Remove the screw and the locking plate.
•
Remove the two pins.Take the hook out.
Replacement :
•
Put the hook into its housing.
•
Place the two pins inside the hook
•
Fit the screw and the locking plate without forgetting the safety washer.
)
The hook should be set depending on 1/1 and 2/1 revings.
10.6.1 Measurement of the wear on the suspension and lifting hooks
The wear on the suspension and lifting hooks should be checked regularly. Damage safety catches
should be replaced immediately.
Bottom hook (see hook certificate) :
If the maximum dimension (
a2
) on the lifting hook is greater than the initial dimension by more than
15% , the hook should be replaced.
Class :
012
025
a2,
max. allowed :
23 mm
30 mm
Top hook :