Valley Rainger Linear, Owner'S Manual

Page: 25 / 104

Rainger Linear 25
OVERVIEW
Spans
Water is transported across the field through a pipe-
line. The pipeline is made up of a series of spans
which are connected together. Each span consists of
truss assemblies and truss rods to support the span
a tower box that acts as a junction box for the span
cable and motor lead, and a drive tower which moves
the pipeline across the field. See Figure 25-1.
Drive Towers
Power to the electric motor on the center drive gear-
box is supplied by the tower box. The center drive
gearbox drives the wheel gearboxes. See Figure
25-2.
Hitch
The spans are attached to each other with a ball hitch
and cup assembly which gives lateral, rotational, and
vertical flexibility between the spans. See Figure
25-3.
The span pipeline is connected together with a flex-
ible hose and held in place with band clamps. See
Figure 25-3.
Overhang
Typically an overhang is attached to the end of the
last span pipe and used for irrigation beyond the
span/drive unit. Support ears and cables provide
support for the overhang. See Figure 25-4.
End Gun
Typically a booster pump is installed and an end gun
is attached at the end of the overhang and used to
increase the area irrigated beyond the end of the
machine. See Figure 25-5.
The end gun is set to cover a specified area. This
area is determined by the forward and backward
angles, which are referred to as the end gun arc set-
tings. See Figure 25-6.
BACKWARD ANGLE
FORWARD ANGLE
1
2
Figure 25-6 1. Forward Angle
2. Backward Angle
1
2
3
4 5
Figure 25-1 1. Pipeline
2. Span
3. Drive tower
4. Truss rod
5. Truss assembly
1
2
3
4
5
Figure 25-2 1. Drive Tower
2. Center Drive Gearbox
3. Wheel Gearbox
4. Tire And Wheel Assy
5. Tower Box
1
2
3
Figure 25-3 1. Ball Hitch And Cup Assembly
2. Flexible Hose
3. Band Clamp
1
2
3
Figure 25-4 1. Span
2. Drive Unit
3. Overhang
1
Figure 25-5 1. End Gun