Manual

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