11.2.1 While
the ship is in dry-dock, all openings to the sea in the machinery
spaces and pump-rooms, together with the valves, cocks and the fastenings
with which these are connected to the hull, are to be examined.
11.2.2 All shafts (except screwshafts and tube shafts, for which special
arrangements are detailed in Pt 1, Ch 3, 17 Screwshafts, tube shafts and propellers), thrust block and all bearings are to be
examined. The lower halves of bearings need not be exposed if alignment and wear are
found to be acceptable.
11.2.3 An
examination is to be made of all reduction gears complete with all
wheels, pinions, shafts, bearings and gear teeth, thrust bearings
and incorporated clutch arrangements.
11.2.4 The
following auxiliaries and components are also to be examined:
-
Auxiliary engines,
auxiliary air compressors with their intercoolers, filters and/or
oil separators and safety devices, and all pumps and components used
for essential services.
-
Steering machinery.
-
Windlass and
associated driving equipment, where fitted.
-
Evaporators (other
than those of vacuum type) and their safety valves, which should be
seen in operation under steam.
-
The holding down
bolts and chocks of main and auxiliary engines, gearcases, thrust
blocks and intermediate shaft bearings.
- Where Thrusters and/or Podded Propulsors are fitted and have been
assigned the ShipRight descriptive note ThCM, the degree of inspection
required whilst in dock will be determined by the analysis of Condition Monitoring
records. Refer to ShipRight Procedure Machinery Planned Maintenance and Condition
Monitoring.
- Fuel cells and associated equipment.
11.2.5 All
air receivers for essential services, together with their mountings,
valves and safety devices, are to be cleaned internally and examined
internally and externally. If internal examination of the air receivers
is not practicable, they are to be tested hydraulically to 1,3 times
the working pressure.
11.2.6 The valves, cocks and strainers of the bilge system, including bilge
injection, are to be opened up as considered necessary by the Surveyor and, together
with pipes, are to be examined and tested under working conditions. The fuel oil, feed,
lubricating oil and cooling water systems, emissions abatement plant for combustion
machinery where installed, as well as the Ballast Water Treatment System (BWTS) where
installed, ballast connections and blanking arrangements to deep tanks which may carry
liquid or dry cargoes, together with all pressure filters, heaters and coolers used for
essential services, are to be opened up and examined or tested, as considered necessary
by the Surveyor. All safety devices for the foregoing items are to be examined.
11.2.7 Water
ingress detection arrangements fitted on single hold cargo ships having
length less than 80 m and bulk carriers and flooding detection systems
fitted on passenger ships are to be tested to demonstrate that they
are in good working order. Alternatively, this testing may be conducted
during the required hull Special Survey space examinations, see
also
Pt 1, Ch 3, 5.3 Examination and testing.
11.2.8 Fuel
tanks which do not form part of the ship's structure are to be examined
and, if considered necessary by the Surveyor, they are to be tested
to the pressure specified for new tanks. The tanks need not be examined
internally at the first survey if they are found satisfactory on external
inspection. The mountings, fittings and remote controls of all fuel
oil tanks are to be examined, so far as practicable.
11.2.9 Where
remote and/or automatic controls are fitted for essential machinery,
they are to be tested to demonstrate that they are in good working
order.
11.2.10 For
ships fitted with a dynamic positioning system, the control system
and associated machinery items are to be examined and tested under
operating conditions to an approved Test Schedule.
11.2.11 In addition to the above, detailed requirements for steam and gas turbines
and steam engines, engines, electrical installations and boilers are given in Pt 1, Ch 3, 12 Turbines and steam engines - Detailed requirements, Pt 1, Ch 3, 13 Reciprocating internal combustion engines - Detailed requirements, Pt 1, Ch 3, 14 Electrical equipment and Pt 1, Ch 3, 15 Boilers respectively. In certain instances, upon application by the Owner
or where indicated by the maker's servicing recommendations, the Committee will give
consideration to the circumstances where deviation from these detailed requirements is
warranted, taking account of design, appropriate indicating equipment (e.g. vibration
indicators) and operational records.
11.2.13 For towing ships (e.g. tugs), where towing winch emergency release systems are fitted,
these are to be examined and operationally tested with the towing line under load, in
both normal power condition and blackout condition.