Volvo Penta AQD70C, Инструкция, Страница: 39 / 52

37
35. Inhibiting
Corrosion of the engine components must be prevented as
otherwise the engine will gradually be destroyed. For this
reason, the engine should be protected against such da-
mage by the following measures:
A. If the engine is to remain idle for a period of time not
exceeding one month it should be started after 14 days
and run warm for about one hour.
If there is risk of frost, the seawater circuit in the cooling
system should be drained after stopping the engine. The
fresh water system should be filled with a Volvo Penta ethy-
lene glycol mixture. The concentration of glycol used
should be able to cope with the lowest temperature likely to
occur. Do not use less than 40 % by volume of ethylene
glycol. With a low ethylene glycol content there is risk of da-
mage from corrosion. Regarding volumes, see page 13.
The drain plug in the exhaust line condensation water col-
lector, if fitted, should be removed to allow the condensate
to run out. Drain any water that may have collected at low
points in the exhaust line.
B. If the engine is to remain idle for more than one
month, inhibiting is recommended according to the
points given in the following text.
If inhibiting is intended only to cover the normal winter
lay-up, Volvo Penta engine oil can be used instead of the
rust-proofing oil specified in the following text. This will
enable the engine to be driven directly at the beginning of
the new season. In this case, the oil and oil filter(s) should
be changed immediately before laying-up and should not,
of course, be drained. The engine should be run warm after
the oil change.
Remember to utilize the break in operation to carry out the
periodical routine servicing which must, in any case, be
carried out.
1. Run the engine warm to its normal operating tempera-
ture.
2. Stop the engine and drain or pump out the lubricating
oil from the oil sump.
3. Fill the engine with rust-proofing oil to a level between
the marks on the dipstick. Suitable rust-proofing oils
are Esso Rust-Ban 623 or other manufacturers
equivalent oils.
In the case of normal winter lay-up the engine can be
filled to the usual level with Volvo Penta lubricating oil
instead of rust-proofing oil.
The reverse gear and reduction gear if fitted should be
filled to the (upper) mark on the dipstick with the usual
recommended lubricating oil.
4. Pump the oil out of the injection pump camshaft
housing using a pump. Thereafter, fill the housing with
the same type of rust-proofing oil as used in the
engine, (approx. 1 litre = 1 quart). This point is omitted
if Volvo Penta lubricating oil is used.
5. Disconnect the fuel line to the feed pump and the re-
turn line to the tank. Connect the lines, using hoses, to
a vessel containing 1/3rd Volvo Penta lubricating oil,
Rust-proofing oil of type Esso Rust-Ban 623 or
equivalent and 2/3rds diesel fuel.
6. Vent the fuel system and start the engine. See chapter
”Running”. Let the engine run at rapid idle until about 2
litres (2 quarts) have been consumed from the vessel.
7. Stop the engine and pump out the rust-proofing oil
from the oil sump. Connect the ordinary fuel lines.
However, if a change of oil has recently been carried
out where Volvo Penta lubricating oil was used, this
need not be pumped out.
8. Close the bottom valve and drain the seawater system
completely, see under ”Precautions in case of frost”.
The engine fresh water system must either be
completely drained or have anti-freeze added, suitable
in the form of Volvo Penta ethylene glycol.
9. Remove the batteries from the boat and take them to a
charging station for periodical charging in accordance
with the manufacturers instructions.
10. Protect all external unpainted surfaces with suitable
preservative fluid. The surfaces should be clean and
dry before the fluid is applied.
NOTE! Certain preservative fluids intended for
outside use are inflammable and should, therefore,
be used with care. Furthermore, some fluids are
dangerous to inhale, a breathing mask should
therefore be worn when such fluid is being sprayed
on.
11. From this point on, the engine must not be turned over
again until it is to be taken into use. Mark the engine
clearly with some kind of notice saying that the engine
has been inhibited and give the date. Also state that
the seawater has been drained and whether the fresh
water system has been drained or glycol been added
and state the freezing point of this protection. Also
make a note of whether the oil has been drained or a
change of Volvo Penta lubricating oil has been carried
out.
12. Cover the engine if necessary as protection against
dirt.
36. De-inhibiting
1. Remove any covers on the engine.
2. Wash off the preservative fluid on the outside with
white spirit.
3. Provided the coolant was drained, close the drain
cocks and fill the fresh water system with water mixed
with Volvo Penta glycol. See under ”Running”. Open
the bottom valve.
4. Fill the engine, if necessary, with the correct quality of
lubricating oil and check the level in the reverse gear
and reduction gear if fitted. Fit new oil filters, if they
were not changed in connection with the changing to
Volvo Penta lubricating oil when laying-up the boat.
5. Connect the batteries.
6. Fit new fuel filters, vent the fuel system and start the
engine. See under ”Running”. Run the engine warm at
rapid idle before running under load.
7. Check for oil, fuel or cooling water leakage.