Elliott Digger Derrick, Operation & Maintenance Manual, Page: 369 / 376

44 10-2014-2.1 - D 7960 N - V60N www.hawe.de | 2015
5.2 Ports
The nominal diameter of the connecting lines depends on the specified operating conditions, the viscosity of the hydraulic fluid, the
start-up and operating temperatures and the speed of the pump. In principle we recommend the use of hose lines due to the superior
damping characteristics.
Pressure port
The pressure port connection on type V60N-060 is established via a threaded connection G 3/4"; on type V60N-090/110/130 via a
threaded connection G 1".
Observe the tightening torque specified by the part manufacturer.
Suction port
The suction port on all pumps is established via standardised suction intakes with a size that is dependent on the max. delivery flow of
the pump.
The specifications of the max. delivery flow Q
max
must be observed. These can be found in the following table.
Nominal width (N) 38 (1 1/2") 42 50 (2") 64 (2 1/2") 74 (3") 6 (G 1 1/4) 7 (G 1 1/2)
Q
max
(l/min) 75 90 125 190 250 90 125
The suction intakes can be ordered as an option with the pump.
If possible, route the suction line to the tank in such a way that it is steadily rising. This allows trapped air to escape. Observe the
specifications in "Installation positions"
Chapter 5, "Installation information" . The absolute intake pressure must not fall below 0.85 bar.
A hose line should generally be used in preference to a rigid pipe.
Drain port
The V60N pumps have 2 drain ports G 3/4" or 1 1/16-12-UN-2B. A G 1/8" threaded connection is also available for the flange version
SAE-B2, SAE-B4 and SAE-4. This is used for bleeding in the case of vertical installation positions.
The nominal diameter of the overflow oil line must not be less than 16 mm. The cross-section is determined by the max. permissible
housing pressure.
Integrate the overflow oil line in the system in such a way as to prevent direct connection with the suction line of the pump. Both
drain ports can be used simultaneously.
A separate overflow oil line from the controller to the tank is not required. Observe the specifications in Chapter 5.3, "Installation
positions" .
LS port for version LSNR, LSNRT, NXR
The LS line is connected to the controller via a G 1/4" threaded connection.
The nominal diameter of the line depends on the installation position of the pump and should be 10% of the pressure line capacity. A
hose line should generally be used in preference to a rigid pipe.
■ When the proportional directional spool valve is in a neutral position, the LS line must be fully relieved (only controller type LSNR,
LSN). In the case of controller type LSNRT, relief takes place internally in the controller.