Oil Cooler - Volvo Penta TAMD60A Instruction Book

AQD70, TAMD70
1. Remove the screws securing the cooling water pipe
between the heat exchanger end cover and the reverse
gear oil cooler.
2. Carefully bend loose the pipe from the end cover.
3. Undo the hose clamp between the after-cooler and the
heat exchanger and the clamp on the cooling water line
under the after-cooler.
4. Remove the screws securing the end cover at the front of
the heat exchanger and the cover over the after-cooler
and remove these. Pull out the inserts.
5. Clean the inserts inside and out. Also clean the
housings. Make sure that the drain hole (1.5 mm) in the
bottom of the after-cooler housing is open. Make sure
that no impurities enter the intake manifold.
6. Replace all gaskets and sealing rings and re-fit the parts.
30. Oil cooler, cleaning
Clean the inserts (for engine and reverse gear) once a year
or after every 2400 hours of operation. If the oil cooler is to
be pressure-tested it should be removed from the engine.
Close the bottom valve and drain the coolant before carrying
out any work on the cooling system.
Oil-cooler for TAMD60-engines
1. Remove the front end of the cooler and the pipe between
the seawater pump and the cooler.
2. Remove the cover with the oil trap from the block
(applies to TAMD60A) and pull out the cooler insert. The
insert can only be pulled out forwards because it is
provided with a flange at the front end.
3. Wash the insert in white spirit and blow it dry with
compressed air. Clean the end sides of the inserts with a
wire brush and clean the inside of the tubes with a
suitable brush. Clean the housing.
4. Use new gaskets and fit the parts.
Oil cooler for AQD70C, TAMD70C engines
The oil cooler for the AQD70C and TAMD70C engines have
an insert which can only be removed and fitted in one way,
due to the design of the deflector plates. To ensure correct
location of the insert it has a guide on the lower edge of one
of its ends which fits into a recess in the end cover.
1. Remove both end covers. Note the position for the guide
and then remove the housing from the engine.
2. Push out the insert by pressing on the end with the
guide.
3. Wash the insert in white spirit and blow dry with
compressed air. Clean the end sides of the insert with a
wire brush and clean the inside of the tubes with a
suitable brush. Clean the housing.
4. Fit the insert by first pushing in the end which does not
have the guide. The insert should fit with its guide in the
end cover recess.
34
Heat exchanger TAMD60
Inserts in after-cooler and
heat exchanger, AQD70, TAMD70
Oil cooler AQD 70 C, TAMD 70 C
1. End cover with recess for
guide
2. Guide
3. Deflector plates
4. Housing