Craftsman CM4.33 - Page 17

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craftsman marine diesel engines CM4.33 / cm4.42
Revolution counter / hour counter
The revolution counter indicates the number of the en-
gine’s revolutions per minute.
When underway, do not let the engine run at maximum
revolutions during a prolonged period of time. Also, do
not have the engine idling for more than a few minutes
and never run the engine at full throttle, in order to heat
it up quickly.
The hour counter indicates the total running time of the
engine in hours.
The CM 4.33 and CM 4.42 marine diesel engines both
have an idling number of revs. of about 840 rpm.
Voltmeter
The voltmeter shows the voltage of the battery. When
the engine is stopped and the starter switch turned to
‘on’ or ‘pre-heat’ the battery voltage must be about 12
Volt. When the engine is running the gure must read
between 12 and 14.5 Volt.
Monitoring lights
The instrument panel features six monitoring lights for,
respectively:
1. oil pressure
2. battery charging current
3. temperature inner cooling circuit
4. temperature raw water
5. low oil pressure gearbox
6. pre-heating
These monitoring lights, except the pre-heating monitor,
are connected to a buzzer. If the buzzer becomes audible
when the engine is running, a problem has occurred to
one of the functions described here above.
In that case, stop the engine IMME-
DIATELY!
Engine instrument and control panels
Prior to commissioning the engine 9
1.
2.
3.
4.
5.
6.