Volvo Penta MD7A Instruction Book page 10

RUNNING INSTRUCTIONS
RUNNING
SHUTDOWN PROCEDURE
6
The single lever control contains engine speed as well as gear
shifting functions.
NOTE! If the boat is equipped with a folding type of propeller,
the engine speed must be reduced to idling prior to shifting to
"FORWARD". Shifting at higher speed might easily damage
the propeller.
F = Forward N = Neutral
R = Reverse T = Throttle
In order to achieve good running economy, the engine should
not be run at maximum engine speed for long periods of time.
Check regularly during running that the warning lamp for
battery charging is out. Should the cooling water temperature
be too high or the oil pressure too low, the buzzer will warn
you, at the same time the relevant warning lamp goes on.
If this happens, the engine must be stopped immediately
and the reason investigated.
Before shutdown the engine should be allowed to idle for a
few minutes with the control lever in neutral.
Stop the engine by pulling out the stop control when the
engine is idling. Then turn back the key switch to the initial
position.