Operation manual for
BAUER RAINSTAR
Series T32, T42
13
5 DESCRIPTION
The RAINSTAR is a universal irrigation machine designed and constructed for labour-saving irrigation of varying
lengths and widths of fields with the greatest variety of crops.
The main components of the machine are: a two-wheel undercarriage with the turntable on which the pipe reel can
be swivelled through 270° into the irrigation lane; special PE-pipe, drive system with TVR 18 full-flow turbine as
well as the four-stage compact gearbox, and a sprinkler cart with the BAUER wide-range sprinkler
The special composition of materials of the PE-pipe (polyethylene) has been purpose-designed for the
RAINSTAR’s range of applications.
TVR 20, the heart of the system is a full-flow turbine mounted in a flow-promoting position directly on the reel inlet
and driven by the irrigation water. Maximum efficiency rating guarantees minimum pressure loss.
Power is transmitted from the turbine onto the reel over a 4-stage gearbox and a chain drive.
A band brake on the gearbox ensures that the reel neither turns back in the shut-off position nor continues to turn
after the pipe pull-off. This way the PE-pipe windings do not slacken on the reel.
The retraction speed of the sprinkler cart with the sprinkler is infinitely variable.
Speed is adjusted with the electronical control unit ECOSTAR 4300.
The 4-line display indicates the momentary system operating mode. (See chapter on ECOSTAR) A mechanical
speed control option is also available.
Never exceed maximum permissible connection pressure of 11 bar!
If needed, it is possible to interrupt system operation completely with the gear-shift lever. This also serves as
emergency stop. The PE-pipe is braked and remains stretched. Before you restart the system you must slacken
the PE-pipe.
Remove drive protection only after water inlet to the machine has been closed and
the stretched PE-pipe released.
To slacken a stretched PE-pipe, push the gear-shift lever down carefully (see proper procedure).
The mechanical pipe reeling device ensures trouble-free winding of the PE-pipe on all layers.
ECOSTAR 4300
, the electronic speed control system, maintains the retraction speed constant on all levels
independent of the length of the laid down PE-pipe length.
It is also possible to mount ECOSTAR 4200 as an option, which offers further applications and supplementary
information.
Shut-off
At the end of the irrigation strip the cart is automatically lifted into the transport position. Thereby the automatic
drive shut-off is activated by a system of rods. After the shut-off the raised cart is locked in the transport position
by the transport guard. If the machine is equipped with a an electric shut-off valve (with ECOSTAR) or a hydraulic
shut-off valve (mechanical speed regulation), water supply to the machine is closed simultaneously. After shut-off
the RAINSTAR can be transported to its next setting-up position immediately. The PE-pipe can be pulled off or laid
down again, the water supply opened, and the machine is ready for the next run.
Transport
When driving on public roads the reel must be turned into the driving direction and locked in position with the lock
bolt to keep it from swiveling. The PE-pipe must be fully wound up on the reel and the cart lifted and locked and
the transport guard engaged. The jack and both rear machine supports must be withdrawn to their uppermost
position. The support legs must be secured with lock pins.
Safe for an official permit, 10 km/h is the maximum permissible driving speed. For increased safety against
overturning we recommend to set the RAINSTAR wheels at the maximum possible track width. Keep in mind that
water in the PE-pipe increases the system weight considerably and shifts the centre of gravity upward.
It is possible to transport the machine between hydrants in the field with the cart lifted on the side. In this
configuration the driving speed must always be adjusted to the existing conditions and should never exceed 5
km/h. Please note also that this type of transport requires a wider driving lane.
WARNING!
