12
112202RE101_A_M
3 GENERAL DESCRIPTION
EN
Diaphragm pump
The water pump is a suction diaphragm pump, driven by the tractor PTO. The recommended
pump speed is 350 to 370 rpm. The maximum allowable speed of the pump is 540 rpm.
Pressure regulator
You can adjust the water pressure with the pressure regulator. A handle on the pressure regulator
enables you to depressurize the pump, which may be desirable, for example, when positioning
the guide arm in line with the drain pipe. The optimum operating pressure is 30 - 35 bar.
Pump pressure (bar)
Cleaner nozzle pressure
(bar)
L/min at 500 metres
20
3.8
45
25
6.1
50
30
6.7
55.5
35
9.9
58.3
40
11
65
50
12.8
68.7
The return hose for the pressure regulator is connected to the top of the guide arm. The water
‘lubricates’ and cleans the flushing hose.
Filters
The suction hose is fitted with a suction strainer. The suction strainer is located upstream of the
diaphragm pump.
Flexible hose section
The flexible hose section between the flushing hose and cleaner nozzle ensures that the cleaner
nozzle remains in the middle of the drain pipe.
Cleaner nozzle
The standard cleaner nozzle has 13 holes: 1 forward-pointing hose and 12 backward-pointing
holes at a 15° angle.
• Before the arm can be retracted, it is necessary to ensure that the
flushing hose is not located in the folding part of the arm.
• Position the drain-shaft arch before the machine is folded in
(otherwise the drain-shaft arch will contact the reel).
ATTENTION
