Fischer Panda Panda 4800i PMS, Manual, Page: 110 / 180

Maintenance Instructions
Seite/Page 110 Panda_4800i PMS_eng.R04 - Kapitel/Chapter 6: Maintenance Instructions 14.2.13
remained bubbles are removed.
6.13.1 Draining the coolant
Fig. 6.13.1-1: Ventilation valve
In principle only describes here, how the cooling water of the
raw water cycle can be drained. See measures for the prepara-
tion 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.
6.14 The raw water circuit
6.14.1 Clean raw water filter
Fig. 6.14.1-1: Raw water filter
The raw water filter should be released regularly from arrears.
In each case the water cock must be closed before. It is mostly
sufficient to beat the filter punnet.
If water should seep through the cover of the raw water filter,
this may be sealed in no case with adhesive or sealant. Rather
must be searched for the cause for the leakage. In the simplest
case the sealing ring between caps and filter holders must be
replaced.
6.14.2 Causes with frequent impeller waste
The impeller of the cooling water pump must be regarded as wearing part. The life span of the impeller can be
extremely different and exclusively depends on the operating conditions. The cooling water pumps of the PANDA
generators are laid out in such a way that the number of revolutions of the pump lies low compared with other gen-
sets. This is for the life span of the pump a positive effect. Unfavorably affects the life span of the impeller, if the cool-