Importance of maintaining log book records during a watch and vessels stay in port
i) The
log book serves as a legal document in the event of an incident to prove the
functioning of equipment.
ii) It
serves as evidence of various requirements of different states regarding tests
/ checks to be carried out prior arrival of their waters (These should be
logged accurately).
iii) Recording
of various parameters of machinery helps in identifying a trend. And deviation
them normal parameters would point an impending breakdown of machinery.
iv) Logging
of the parameters terms an important part of the condition monitoring process
and hence plays a important role in the preventive maintenance.
v) Last
but not the least, it ensures that watch keepers take diligent care in checking
the equipment / condition of machinery as they sigh the entries in the log book
for their watch thereby taking responsibility of the watch.
Procedures
relating to entries in the log book.
i) Entries
to be made neatly clearly and legible.
ii) It
there is any need for cancellation the previous entry is to be legible and
countersigned by the person carrying out the cancellation.
iii) As
far as possible readings to be taken from the local instruments and not the
remote gages.
iv) Entries
to be accurately made and filled in the relevant column / row.
v) All
the entries relevant to the machine to
be made as far as possible.
vi) Additional
operations / incidents to be logged down in the reruns / column.
All
operating parameters of operating machinery should be logged down in the
respective columns or spaces reserved for them. The flow meters should be
logged down to enable calculation of consumptions other than the above C/E will
log down following after calculating.
- F.O. consumption for M/E, A/E & Aux blr.
- Engine rpm
- Distance by engine observation
- Propeller ship.
- F.O. / L.O. / FW ROB
The
most important parameter regarding M/E would be the main L.O. pressure.
Maintaining
the L.O. pressure within the specified range would ensure proper supply to the
bearings sliding surfaces, thrust pads, pistons etc. If the L.O. pressure is
lower than what is required, starvation of oil would lead to damage to bearing
chances of hot spot and crankcase explosion. There by putting the main
propulsion machinery out of action.
Other than the above, the other parameters
are
i) Exhaust
temperatures.
These
would indicate proper combustion
ii) Scavenge
pressure and temperature
iii) Engine
load (fuel index)
iv) Piston
cooling temperatures.
v) Jacket
water temperatures.
From Marineshelf
0 comments:
Post a Comment