Filling And Bleeding - Vetus EHPA12R2 Instructions D'installation

Filling and bleeding
Hydraulic steering system, cylinder and EHP with a reversible motor (EHPA R2, EHPB R2, EHPC R2)
Temporarily remove the connections between the automatic
steering gear or the selector switch and the EHP motor.
Connect the orange wire from the relay via a switch to the posi-
tive terminal of the battery.
Remove the filler neck of the pump housing.
1
2
4
3
1
2
3
4
vetus® Electro-Hydraulic Pumps
1
2
3
4
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2
3
Place a funnel in the appropriate opening and fill the EHP tank
with hydraulic oil.
Details concerning the oil specifications are found in the
'Technical Specifications'.
While filling, make sure that the tank contains a sufficient oil
volume; if the pump sucks in air, the system must be ventilated
once more. In order to prevent the oil from absorbing air, fill the
tank slowly and carefully.
Open the air bleed valve A. Move the piston rod until the
piston touches the end cover A. Then switch on the EHP
motor by activating the switch. As soon as the oil emerging
from the breather nipple A is air-free, the EHP motor may be
turned off again.
1 Red (+)
2 Brown (-)
3 Orange
4 White
Close the breather nipple A and turn on the EHP motor once
more. Fill up the buffer tank while the piston, through the
EHP , is moved toward the end cover B.
Now connect the white wire from the electromotor via a
switch to the positive terminal of the battery.
Open the breather nipple B.
Activate the EHP motor by pressing the appropriate switch.
As soon as the oil emerging from the breather nipple B is
air-free, the EHP motor may be switched off again and the
breather nipple B may be closed.
Fill the buffer tank up to the specified level.
Disconnect the temporary connections from the battery
to the relay and reconnect the terminals of the automatic
steering control or the selection switch to the relay of the
EHP motor. Check whether the piston rod moves in the right
direction. If the piston rod does not move in the right direc-
tion reverse the connections of the orange and white wires.
ENGLISH
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020203.06