Callesen Diesel Page 1 of 12 Sheet No. 7-94-2A
FIRST START AND TRIAL RUN
When the engine has been installed and everything has been properly checked, the engine is ready
for trial run.
Before the engine is started for the first time, proceed as follows:
Oil level
Check the existing quantity of lubricating oil; the oil level should be seen on the oil gauge (or dip
stick) on the side of the oil container, which is cast together with the starboard side of the crankcase
(below the exhaust pipe). In case the oil does not reach the maximum mark about 2-3 cm from the
top of the gauge, and while the hand pump can still pump pressure on the manometer, oil should
only be replenished after the engine has been idling for about a quarter of an hour, as unskilled
people may have pumped the oil from the container down to the crankcase, to which the overflow
valve is leading. The oil will then, when the engine has run for a while, appear again in the oil
container, as the return pump which sucks from both ends of the crank sump is larger than the
forward pump.
Check the oil level in the clutch case for clutch and reversal. Ensure that the oil is kept between the
marks on the dip stick in the portside of the clutch shield. This checking should be made when the
engine has been started and is idling. The water pumps and sterntube (if not oil lubricated type
sterntube) are lubricated by means of grease presses fitted for this purpose; the sterntube must be
completely filled with grease. All remaining grease cups must be filled and screwed down as well to
ensure that every part is well lubricated. Do not forget to grease the teleflex cables for the
manoeuvring box in the wheelhouse well with graphite grease at mounting. Oil lubricated sterntube
("Sublime") - see separate instruction.
Water level
The freshwater system of the engine is filled with pure water through the cover of the expansion
tank; fill up with so much water that the water level is approximately in the middle of the water gauge
when the engine is cold. Afterwards the circulation pump has to be vented.
Fuel system
Fill the fuel tank and see to it that the shut-off cocks on tanks and coarse filters, which may close for
the inlet pipes to the engine, are open whereafter air relief of the fuel system is undertaken. First the
coarse filter (water trap) is vented by means of the cock in the top: This cock should always remain
open because the overflow piping from the filter is led to the water trap. From the cock a pipe should
be led upwards to minimum 1 m above the top of the tank. Thereafter the inlet piping must be vented
by loosening it on the feed pump until the oil is flowing through without air bubbles.
Then loosen the air cocks above the fuel filter fitted on the frontside of the engine, and by means of
the handpump pump oil through until all air has escaped (the handpump is operated by turning its
handle anti-clockwise until it can be moved up and down). The air cock in the aftermost end of the
heavy inlet pipe on the fuel pumps should be loosened and not retightened until all air has escaped.
Thereafter loosen the air cocks on the upper frontside of the fuel pumps and move the regulating
rods in the fuel pumps forward and backward while at the same time pumping by hand until the fuel
is running through completely free of air bubbles; only then the air cock should be retightened.
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