4- Adjustment of the bed tension :
This adjustment must be performed every 50 hours of use. It prevents premature
wear of components and keeps the chains in position. To carry out the tension
adjustment of the 2-chain there are 2 stretchers (A) outside the skip, for the 4-chain,
there are the two tensioners (A) and 2 more (B) in the middle.
Loosen the counter-nuts A
The tensioning of the bed is done by compressing the spring by tightening the
nuts B
Proper tension translates into a lift-off between 5 and 10 millimeters of the first
bar of the bed in relation to the guide plates under the spreader.
Tension control to be performed every 10 hours (adjust tension if
necessary)
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