Operation manual for
BAUER RAINSTAR
Series T32, T42
67
14.3 COMBINED
SHUT-OFF
The combined shut-off combines overpressure and low-pressure shut-off in one system. The double supply
line allows both overpressure and low-pressure shut-off at the end of the irrigation strip.
. OVERPRESSURE SHUT-OFF:
a) Inlet through supply line „A“
b) Supply line „B“ is closed with an end cap
c) The ECOSTAR is programmed for overpressure shut-off
parameter sheet no.1, program constant 6, setting value
„0“
parameter sheet no.2, machine data 17, setting value „1“
d) The shut-off valve is opened during operation.
e) The shut-off valve closes slowly for the shut-off.
Pressure rises in the supply line. The pump must be shut
down automatically by means of a pressure switch (or
flow control).
LOW-PRESSURE SHUT-OFF:
a) Inlet through supply line „B „
b) Supply line „A“ remains open.
c) The ECOSTAR is programmed at low-pressure shut-off.
parameter sheet no.1, program constant 6, setting value
„1“
parameter sheet no.2, machine data 17, setting value „0“
d) The shut-off valve is closed during operation.
e) The shut-off valve opens quickly for shut-off.
Pressure in the supply line drops. The pump must be shut
down automatically by means of a pressure switch..
15
WINTERIZATION – DRAINING
In areas where frost is likely in winter after the irrigation season, the machine must be drained in time. A
compressor with a minimum air capacity of 800 l/min at 2.5 bar overpressure is best suited for this purpose.
Connect the compressor to the inlet of the machine. For blowing out the water the PE-pipe should not be
pulled off. It can stay on the reel. Otherwise, winding up the pressureless PE-pipe would cause extreme
ovality and proper winding would become impossible.
Before the blow-out procedure, uncouple the sprinkler connecting hose. The small amount of water
remaining in the PE-pipe after the draining will not do any harm.
Turn out the drain plug at the bottom of the TVR 20 turbine. We recommend to turn this plug in again only
when you start up the machine at the beginning of the next season. If a hydraulic shut-off valve is mounted,
the thin connecting hoses also have to be drained by opening the screwings. Open the blind flange at the
RAINSTAR connection. Clean the RAINSTAR and regrease all appropriate points. Store the machine
preferably in a roofed shelter where it is protected from direct exposure to the weather.
Klappe im
Betrieb offen
A
Zuleitung
B
mit Endkappe
verschlossen
Klappe im
Betrieb
geschlossen
A
oprn
B
inlet
