Presentation; Engine - Volvo Penta TAMD74A-A Operator's Manual

Presentation

TAMD74A-A and TAMD74A-B are in-line, direct injec-
tion, 6-cylinder, 4-stroke marine diesel engines. They
are equipped with turbocharger and fitted with either a
heat exchanger for thermostat-regulated freshwater
cooling or connections for keel cooling.
The engines are equipped with a seawater cooled
charge air cooler. The charge air cooler lowers the
temperature of the inlet air to the engine after it has
been compressed in the turbocharger. This allows
high power output while keeping combustion and
exhaust temperatures at a suitable level.
1 2 3
14 13
1
4 5 6
12 11 10
2 3 4
10 9
The exhaust manifold and turbocharger are fresh-
water cooled to reduce heat radiation to the engine
room.
The engines are equipped with a comprehensive
electrical engine management system. This automatic
system monitors engine speed as well as the electri-
cal and fuel systems and the engine cooling and lubri-
cation functions. The system consists of a number of
switches and sensors which activate an alarm or an
automatic stop* if a fault is detected in the engine.
* The automatic stop function is optional.
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9 8
5 6
8 7
TAMD74A-A, TAMD74A-B
1. Switchable fuel fine filters
2. Oil filler cap
3. Fuel injection pump
4. Sensor shelf with switches and sensors*
5. Stop solenoid (normal stop)
6. Pipe bend for connecting crankcase
ventilation hose
7. Turbocharger**
8. Switchable oil filters, engine
9. Oil cooler, reverse gear
10. Oil scavenging pump
11. Oil cooler, engine
12. Fuel shut-off valve*** (emergency stop)
13. Electrical box with fuses
14. Oil dipstick, engine
* Refer to "Electrical component diagrams".
** TAMD74A-B: With wastegate.
*** Fitted behind the electrical box.
TAMD74A-A, TAMD74A-B
1. Air filter
2. Charge air cooler
3. Heat exchanger
4. Coolant filler cap
5. Expansion tank
6. Alternator
7. Sea water pump
8. By-pass filter for engine oil
9. Oil sump
10. Starter motor
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