Engine diary

This article or the following section is not adequately provided with supporting documents ( e.g. individual evidence ). Information without sufficient evidence could be removed soon. Please help Wikipedia by researching the information and including good evidence.

The machine diary (French: journal de la chambre des machines) is a technical record on ships and for other large machines / systems (here also under different names).

All data important for ongoing machine operation are entered in it.

Through the documentation

• problems can be recognized early and preventive maintenance measures can be taken (e.g. suddenly increasing demand for lubricating oil in an internal combustion engine)
• the previous "life" of the machine can be taken into account during repairs and maintenance work. Previous work that could be the cause of failures can be identified.
• the proper performance of the prescribed tests and maintenance work is traceable
• Problems can also be read up for the next watch or shift.
• After an accident, the cause can be traced.

shipping

The engine diary is required by law on all larger ocean-going vessels in accordance with the Ship Safety Ordinance. But it is also available in a shortened form for smaller ships up to sailing yachts with motors.

For frequently occurring work, z. B. a sounding book and a maneuver book are kept as "sub-books" if the relevant content is not in the actual machine diary.

The following are responsible for keeping the machine diary:

• Skipper
• Head of the machinery (chief engineer)
• Nautical or technical officer on watch (by delegation).

The engine diary contains

• the identification of the ship,
• a description of the machine system that is continuously updated in the event of modifications,
• Pages with consecutive page numbers divided into columns for each calendar day,
• a list of all subsidiary books (bearing book, maneuver book ...)

Industry

Similar machine diaries are e.g. B. led for power plants.

Form of entries

• as a paper book or as an IT solution
• Etchings / blackenings are not permitted, deleted content must remain legible, all changes must be dated and signed.
• The records are mostly confirmed by the person making the entry and often at noon every day for the last 24 hours with the signature of the chief engineer .
• The ship owner must take note of the engine log at least every 12 months.
• The book must be kept for three years after the last record.

Entries

The following important data is entered:

• Pressure specifications
• Temperatures
• Consumption, filling / bunkering / dispensing of operating materials
• Revolutions of the machines in the last 24 hours
• The machines slip for the last 24 hours
• Operating hours of the internal combustion engines
• Hours of operation of other important devices, such as
  • Separators
  • Emergency generators
  • Emergency fire pumps
• Maintenance and repair work carried out
• Confirmation from experts z. B. for testing steam boilers

Smaller incidents, the cause of which cannot always be determined immediately and which do not lead to major restrictions in operation, are also documented. They can be evaluated later, for example, to make improvements or targeted modifications to the machine.