Bosch Rexroth A4VG 35 Series - Installation position

32/64 Installation
Bosch Rexroth AG, A4VG Series35, RE92035-01-B/2019-11-25
7.3 Installation position
The axial piston unit can be installed in the following positions. The pipeline routing
shown illustrates the basic layout.
If filling the stroking chambers via X
1
and X
2
is not possible in the final installation
position, then fill before installation, e.g.,in installation position2.
To prevent unexpected actuation and damage, bleed all air out of the stroking
chambers via the ports X
1
or X
2
, depending on the installation position.
7.3.1 Below-reservoir installation (standard)
Below-reservoir installation means that the axial piston unit is installed outside of
the reservoir below the minimum fluid level.
Recommended installation position: 1 and 2.
X
2
,X
1
T
2
S
h
t min
h
min
SB
1 2 3
4 5
T
1
X
1
, X
2
S
R
SB
h
t min
h
min
SB
h
t min
h
min
T
2
S
T
1
h
min
SB
X
2
S
X
1
h
t min
h
min
X
2
T
2
SB
S
X
1
R
R
F
1
F
2
F
2
h
t min
F
1
F
2
Fig. 9: Below-reservoir installation A4VG with installation positions 1–5
T
1
, T
2
Drain port X
1
, X
2
Control pressure port
F
1
, F
2
Filling/air bleeding h
t min
Minimum required immersion depth
(200mm)
R Air bleed port h
min
Minimum required distance to
reservoir bottom (100mm)
S Suction port SB Baffle (baffle plate)