Handling Techniques and Limitations
Considering the size, weight, and configuration of the Drinking Water Discharge Winch System, there are
suggested Methods of handling the individual components. The size and weight estimates are presented in Section 8.2,
The winch can only be handled from the two lifting plates on each side of the structure. Details of the lifting
plates are presented in Figure 8-1 and 8-2. Note that the plates are not identical in hole spacing.
There are three possible methods to handle the winch. When mobilizing in a shipyard with large crane capability,
a four legged sling with sling lengths of 33 feet is recommended. The slings could be reduced to 24 feet long. Shorter
sling lengths are not recommended because they would induce high loads to the side of the drum flange. This
configuration is presented in Figure 8-3.
To reduce overhead clearance requirements, a spreader bar can be used. Figure 8-4 depicts a one-dimensional
spreader bar, and Figure 8-5 depicts a two-dimensional spreader bar.
CAUTION and WARNING
Rigging of the winch should only be undertaken by qualified personnel.