A method of preparing a lip-type shaft seal for, a method of installing a lip-type shaft seal on a shaft of an underwater application and a lip-type shaft seal therefor

A method of installing a lip-type shaft seal for an underwater application, the lip-type shaft seal having a lip section and a backing section, comprising:

• a) preparing the lip-type shaft seal for installation, above water, by
• i. providing the lip-type shaft seal with a point of noncontinuity comprising two end surfaces,
• ii. providing the end surfaces with two or more sets of form-locking elements, and
• iii. providing at least one set of form-locking elements at the lip section and at least one set at the backing section of the lip-type shaft seal;
• b) installing the lip-type shaft seal round a shaft or a shaft liner, underwater, by
• i. taking the lip-type shaft seal under water,
• ii. wrapping the lip-type shaft seal round the shaft or a shaft liner, and
• iii. form-locking the ends of the lip-type shaft seal to one another.