Callesen Diesel Page 5 of 12 Sheet No. 7-94-2A
outboard does not exceed a temperature of about 30-40ºC (under tropical conditions a little higher,
which is about 25ºC above the inlet water temperature).
During the first trial run, the sterntube must be lubricated sufficiently (apply a not too heavy
"sterntube grease", better too thin than too thick), and the stuffing box frequently checked for
heating; its temperature must not be higher than one is able to hold a hand constantly on the side of
the stuffing box bearing. If it heats up more than normal, it is probably only because the stuffing box
is tightened up too hard. It must be slackened, and if this is not enough, the cotton tallow packing or
perhaps the "Crane" metal packing, if any (hamp packing or similar should rather not be used as
these materials are wearing the shaft), should be taken out and the rings be pushed loosely in after
having been lubricated with grease, whereafter the gland can be tightened quite a little. Newer
engines which are equipped with special stuffing boxes outside and inside the sterntube are
lubricated with ordinary engine oil in the sterntube (regarding oil types - see page 18).
When the engine has been running for about 2-3 hours at full load without any trouble, the trial run
can be concluded.
The engine is stopped by pushing the governor handle completely down to stop and thereafter the
toothed bars of the fuel pumps are pushed astern.
IT IS THE DUTY OF EVERY CUSTOMER OR HIS REPRESENTATIVE TO WITNESS THE TRIAL
RUN TO MAKE THEMSELVES ACQUAINTED WITH THE ENGINE AND TO COMPLAIN ABOUT
DEFECTS/FAULTS, IF ANY. ANY COMPLAINTS ABOUT THE TRIAL RUN BROUGHT FORWARD
AT A LATER DATE WILL NOT BE HONOURED LATER ON.
USE AND ATTENDANCE
After the trial run has taken place as described, the plant is handed over to the purchaser in good
and proper condition and with good and proper handling, the engine will render many years' satis-
factory service.
It is of great importance
for the user to understand that a modern engine plant demands careful
attendance and absolute cleanliness. First of all, avoid carrying dirt (sand or the like) into the engine
room, and avoid having cotton waste and other materials lying on the floor plates as such things are
liable to be sucked in by the suction filter which will clog and cause loss of power and higher fuel
consumption; at worst it may even damage the engine plant.
The engine is constructed to be easy to keep clean which should never be neglected.
Before starting the engine, pressure must always be pumped on the lubricating oil system by means
of the handpump. Then you will be sure that there is oil in all bearings and on the cylinder paths.
Immediately after having started the engine, check whether there is pressure on the lubricating
system and whether the water level can be seen on the water gauge on the expansion container.
When the above mentioned is in order, the engine may confidently be loaded; however, it is re-
commended - especially as long as the engine is new - to bring load on little by little so that the
various parts warm up together gradually. After the engine has run for a short time under load, check
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