12.1.2 The
working parts of the main engine and attached pumps, and of auxiliary
machinery used for essential services, are to be opened out and examined,
including:
-
For reciprocating engines:
- Bulkhead stop valves and manoeuvring valves.
- Cylinders.
- Pistons, piston rods, connecting rods, crossheads and guides.
- Valves and valve gear.
- Crankshaft.
-
For turbine machinery:
- Blading and rotors.
- Flexible couplings.
- Casings.
12.1.3 In
gas turbines and free piston gas generators, the following parts,
also, are 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.
12.1.4 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.
- Synchronizing and controlgear.
- Cooling system.
- Explosion relief devices.
- Gas and air piping.
- Receivers and valves, including by-pass arrangements.
12.1.5 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.
12.1.6 The
manoeuvring of the engines is to be tested under working conditions.
12.1.7 Exhaust
steam turbines supplying power for main propulsion purposes in conjunction
with reciprocating engines together with their gearing and appliances,
steam compressors or electrical machinery, are to be examined, so
far as practicable. Where cone connections to internal gear shafts
are fitted, the coned ends are to be examined, so far as practicable.