horsch Leeb 4 AX, Operating Instructions Manual

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Piston diaphragm pump
The piston diaphragm pump is located in the
front area under the fresh water tank. It carries
out all functions of the fluid circuit.
NOTE
¾
The piston diaphragm pump must not be
started or stopped while under pressure!
¾
The maximum pressure of the pump must not
be exceeded!
The piston diaphragm pump has 4 row cylinders
with semi-hydraulic support. In addition, it has
external suction pressure channels.
Piston diaphragm pump DB 274
Technical data:
Type
DB 274
Flow rate in l/min at 450 rpm 220
Max. flow rate in l/min at 550 rpm 270
Maximum pressure in bar 15
Minimum revolutions per minute 350
Maximum revolutions per minute 550
Optionally, a larger piston diaphragm pump with
a flow rate of 400 l/min is available. It has 6 row
cylinders with semi-hydraulic support. In addi-
tion, it has external suction pressure channels.
Piston diaphragm pump DB 406 (optional)
Technical data:
Type
DB 406
Flow rate in l/min at 450 rpm 330
Max. flow rate in l/min at 550 rpm 400
Maximum pressure in bar 15
Minimum revolutions per minute 350
Maximum revolutions per minute 550
The pressure of the piston diaphragm pump can
be read on the terminal or the pressure gauge.
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