PMS 4500 FCB Manual - Ysebaert

Maintenance Instructions
If no change of the cooling water level can be determined, the generator is started for 5 minutes.
Afterwards repeat the de-aeration two - three times.
It is meaningful to repeat the de-aeration procedure also after some days again to guarantee that
in the system remained bubbles are removed.
B.5.1 Draining the coolant
In principle only describes here, how the cooling water of the raw water cycle can be drained. The
mixture of the fresh water circuit should not be drained in principle. See measures for the preparation
of the winter storage.
The simplest and cleanest method consists of
the fact to bring the external ventilation valve
below the generator level and hold over a collecting
basin. Open the valve now, the water from
the raw water circuit flows downward into the
container.
B.5.2 Exchange of the toothed-belt for the internal cooling water pump
The relative high ambient temperature in the closed sound insulated capsule (about 85°C) can be
a reason for a reduced lifespan of the toothed-belts. It is possible that the "softener" in the rubber
compound lose their effect after a short operating time because the air in the sound insulated
capsule can be relative warm and dry.
The toothed-belt must be controlled in a very short time interval. It can be happen to change the
toothed-belt after some weeks because of unfavorably conditions. Therefore the control is needed
in an interval of 100 operating hours. The toothed-belt ia a wearing part. It should be enough
spare toothed-belts on board. We suggest to stand by the according service-packet.
Page 20 PMS_4500_FCB_manual.V02 - Chapter B: Maintenance Instructions 15.7.05