Manual for
BAUER RAINSTAR A3
20
4 Mechanical Regulation
The retraction speed is steplessly adjustable and it is set by
means of the adjusting lever which is fixed with the knurled
nuts after adjustment. The speed is nearly constant from the
first to the last layer as well as within one layer. This is
achieved by means of the layer compensating lever resting
against the PE-pipe in any position ….
... It actuates via control rods the regulating flap mounted on
the turbine and it regulates hence the turbine speed.
Varying conditions of ground as well as low water flow may
lead to inconstant retraction speeds despite of the layer
compensating device. This can be remedied by fixing the
control rod one hole up or down when PE-pipe retraction
becomes faster or slower.
The exact setting of the regulation also depends on the PE-pipe diameter and it is different for PE-pipes of 55 –
63 mm.
By fixing the bolt of the control rod one hole up, regulation will be reduced so that the retraction speed increases
up to the last layer.
By fixing the bolt of the control rod one hole down, regulation will be increased so that the retraction speed is
reduced up to the last layer.
