Volvo Penta TAMD72P - During Operation Checks and Alarms

22
1. Single lever control: Check that the lever is in
neutral “N”. This means that the throttle control
is set to idling and the reverse gear is disen-
gaged.
Dual lever control: Move the forward/reverse
lever into neutral in order to start. Pull the throttle
lever right back (idling position).
2. Put the key in the key switch. Turn it to the “I”
position (operating position). All warning lights
will come on and stay on for max. 20 sec. The
high coolant temperature warning light will then
go off.
3. Push the “Alarm test” button and check that the
alarm sounds (warning lamps come on). The
alarm will stop when the button is released.
4. Engines with a starter element
Cold engine: Turn the key to position “II” (pre-
heating). Release the key when the “starter ele-
ment on” indicator lamp comes on. Activation
time is approx. 50 secs. (timer relay). Do not at-
tempt to start the engine until the indicator light
has gone out.
Hot engine: Turn the key directly to position “III”
to start.
Starting the engine
To keep smoke on starting to a minimum, the TAMD71B is fitted with air preheating (a starter element). This
starter element is found in the inlet pipe, and its activation time is controlled by a timer relay. In the TAMD63
and TAMD72 engines no starter element is required since these variants have higher compression, different
combustion chambers and a modified injection system.
The starter element should be on for approx. 50 sec. for preheating the inlet air before cold-starting. After start-
ing, the element is switched on automatically for a further 50 sec. to reduce exhaust smoke during warming up
and to make the engine run evenly.
Note! On TAMD72P engines the EDC system controls the starting procedure in order to further minimize the
noxious exhaust emissions. In order to raise the combustion temperature before start, the starter motor cranks
the engine approx. 4 turns before any fuel is injected.
The engine should not be considered as difficult to start as this is the normal starting procedure for an EDC
engine.
WARNING! Never use start spray or similar to start the engine. The starter element may cause an explo-
sion in the inlet manifold. Danger of personal injury.