Manual
Manual
Manual
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Installation Instructions<br />
5.4.5 Generator installation above waterline<br />
The Panda is equipped with a water intake pump mounted on the motor. Since the intake pump is an impeller pump<br />
there are wearing parts which are likely to require replacement after a period of time. Ensure that the genset is<br />
installed so that the intake pump can be easily accessed. If this is not possible, an external intake pump could be<br />
installed in an easily accessible location<br />
If the generator is installed above the waterline, it is possible that the impeller will wear out faster, because after<br />
starting, the pump runs dry for some seconds. The raw water hose should form a loop as near as possible to the raw<br />
water inlet of the generator (see picture below). This ensures the pump only sucks in air for a short time. The impeller<br />
pump will be lubricated by raw water and the impeller life span will be increased.With the installation of a non<br />
return valve in the raw water inlet line, which is under the waterline, this problem can be restricted.<br />
When starting the generator you should always consider when raw water runs out of the exhaust system. If this<br />
takes longer than 5 seconds you should replace the impeller pump because it sucks in air for too long before it delivers<br />
raw water. The impeller has lost its effect and cannot suck in raw water anymore. This results to an overheating<br />
of the motor. If the impeller is not exchanged early enough the impeller blades may break into pieces and plugging<br />
the cooling water cycle. It is very important to exchange the impeller after a couple of months.<br />
Never change the impeller for many years, without exchanging<br />
the old pump. If the sealing ring is defective within the pump,<br />
raw water runs into the sound cover of the genset. A repair is<br />
then very expensive.<br />
Replacement impeller and also a spare pump should always be on<br />
board. The old pump can be sent back to Fischer Panda for costeffective<br />
repair.<br />
NOTE:<br />
7.5.12 Panda_4000s_PMS_SCB_FCB_eng.R04 - Kapitel/Chapter 5: Installation Instructions Seite/Page 57