7.1.2 The working parts of the main engines and attached pumps, and of
auxiliary machinery used for essential services, are to be opened out and examined,
including:
- For turbine machinery:
- Bulkhead stop valves and manoeuvring valves.
- Blading and rotors.
- Flexible couplings.
- Casings.
7.1.3 In gas turbines and free piston gas generators, the following parts are
also to be opened out and examined:
- Impellers or blading.
- Rotors and casings of the air compressors.
- Combustion chambers and burners.
- Intercoolers and heat exchangers.
- Gas and air piping, and fittings.
- Starting and reversing arrangements.
7.1.4 Where gas turbines operate in conjunction with free piston gas
generators, the following parts of the latter are to be opened out and examined:
- Gas and air compressor cylinders and pistons.
- Compressor end covers.
- Valves and valve gear.
- Fuel pumps and fittings.
- Synchronising and control gear.
- Cooling system.
- Explosion relief devices.
- Gas and air piping.
- Receivers and valves, including bypass arrangements.
7.1.5 Condensers, steam reheaters, desuperheaters which are not incorporated
in the boilers, and any other appliances used for essential services, are to be
examined to the satisfaction of the Surveyor, and if it is considered necessary,
they are to be tested.
7.1.6 The manoeuvring of the engines is to be tested under working
conditions.
7.1.7 Exhaust steam turbines supplying power for main propulsion purposes,
together with their gearing and appliances, steam compressors or electrical
machinery, are to be examined, so far as is practicable. Where cone connections to
internal gear shafts are fitted, the coned ends are to be examined, so far as is
practicable.
7.1.8 In units having essential auxiliary machinery driven by engines, the
prime movers of these auxiliaries are to be examined as detailed in Section 8.