Maintenance0012−1/A1 RT-flex50-D
Wärtsilä Switzerland Ltd
4/ 5
2.4.2 Remarks on the use of RUD-swivel lugs
− they must be completely screwed down, lying fully on the seating surfaces.
− they are hand-screwed with an open end wrench.
D Prior to loading the RUD-swivel lug adjust it in force direction (Fig. ’C’ and ’D’).
D Loading as shown in Fig. ’E’ should be be avoided if possible!
C D E
013.445/05
FORCE
DIRECTION
FORCE
DIRECTION
FORCE
DIRECTION
2.5 Shackles
Only those shackles may be used which are in accordance with American Stan-
dard RR−C−271A or which fulfil or exceed these values, including the safety factor.
All calculations for components and tools where shackles are used are laid out ac-
cordingly and based on the mentioned standards.
Normally, the permissible lifting capacity of the shackles is specified for one single
strand.
Attention! If tools are combined (e.g. beams with shackles, RUD-eye bolts or
RUD-swivel lugs and ropes, etc.), it is always the weakest element which deter-
mines the maximum lifting capacity (see details in Tools List 9403−5).
eneral Guidelines: Wire Rope Slings, Span-sets, Eye Bolts, etc.
2010
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