Initial operation
Putting into service/loading
A3.05.18.04
M20-M601C
en / 01.06.93 BA000050 1/3
Ĺ
Caterpillar / MaKLoading during the warming up of a generator motor
Precondition: The jacket water has been preheated to the temperature (t) given below when
running on:
Distillate fuel t = 40 °C
Heavy oil fuel t = 5 - 10 °C below working temperature at the engine
outlet. See A1.06.
Normal working conditions
After preheating to 40 °C (distillate fuel operation) the warming-up time at low load should depend
on the ambient temperature e.g.:
20 °C approx. 20 min
5 °C approx. 40 min
If the engine has been preheated to a higher temperature (e.g. with heavy oil), loading of the engine
is possible after a correspondingly shorter period.
The engine is started at a nominal speed.
When working temperature has been reached, load may be added as described in operating media
increasing the load of a warmed-up engine.
Severe working conditions
If for example, the engine is equipped with automatic starting/stopping or is used as a standby
generating set, the water jacket has to be kept at working temperature and the engine lube oil circuit
automatically primed for 2 min. at maximum intervals of 1/2 h.
For routine testing of, for instance, generating sets, proceed as follows:
- Prime the engine lube oil circuit (if there is no continual prelubrication) and start operation as
described under “Normal working conditions”.
Extreme loading should be avoided when simulating an emergency, as this would not provide
any additional findings about engine availability in the case of need.
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General