1.1.1 All submersibles, diving systems and deck compression chambers together
with their equipment, machinery and ancillary gear, are required to be maintained in
good order by inspection testing and attention at regular intervals. The Surveyor is
to be satisfied that the provision for maintenance and overhaul is adequate for the
standard of work to be carried out.
1.1.2 Time-based schedules for servicing, maintenance and overhaul are to be
complied and incorporated in the operating instructions for the craft or chamber.
Such schedules are to be approved by LR. The times and results of work carried out
in accordance with the schedules, together with details of any replacements, are to
be recorded in the log book for each submersible, diving system or deck compression
chamber. The records are to be readily available for examination by LR’s Surveyors.
1.1.3 The following surveys and inspections are to be effected for maintenance
of class and it is the Owner’s responsibility to ensure that they are carried out at
the specified times, and to provide facilities for supervision by LR’s Surveyors,
where required.
1.1.4 Sub-sea installations are to be surveyed as agreed and details should be
included in the operating and maintenance instructions for each individual case.
These requirements should cover Annual, Intermediate and Special Survey intervals.
1.1.5 When it has been agreed that the complete survey of the system and
machinery may be carried out on the Continuous Survey basis, all compartments of the
system and all items of machinery are to be opened for survey in rotation to ensure
that the interval between consecutive examinations of each part will not exceed five
years, see
Pt 1, Ch 2, 3.5 Existing units — Periodical Surveys 3.5.9.