Bosch Rexroth A4VG 40 Series - Below-Reservoir Installation (Standard)

32/68 Installation
Bosch Rexroth AG, A4VG Series 40, RE 92004-01-B/05.2017
7.3.1 Below-reservoir installation (standard)
Below-reservoir installation means that the axial piston unit is installed outside
of the reservoir and below the minimum fluid level of the reservoir.
Recommended installation position: 1 and 2.
h
t min
h
min
SB
T
1
S
R
1
X
4
, X
3
T
2
S
X
2
, X
1
h
t min
h
min
SB
h
t min
h
min
X
4
T
2
T
1
S
SB
SB
h
t min
h
min
T
2
S
h
t min
h
min
X
3
T
2
T
1
S
SB
X
1
X
2
X
1
X
2
1 2 3
4 5 6
T
1
X
2
, X
1
S
R
SB
h
t min
h
min
Fig. 8: Below-reservoir installation with installation position 1-6
T
1
, T
2
Highest drain port X
3
, X
4
Stroking chamber pressure port
R Air bleed port h
t min
Minimum required immersion depth
(200mm)
R
1
Air bleed port (special version) h
min
Minimum required distance to
reservoir bottom (100mm)
S Suction port SB Baffle (baffle plate)
X
1
, X
2
Control pressure port
Table 8: Below-reservoir installation
Installation position Air bleeding
the housing
Air bleeding the
stroking chamber
Filling
1 (drive shaft horizontal) R X
1
, X
2
S + T
1
+ X
1
+ X
2
2 (drive shaft horizontal) – – S + T
2
3 (drive shaft vertically downward) – X
1
, X
2
S + T
2
+ X
1
+ X
2
4 (drive shaft vertically upward) R
1
X
3
, X
4
S + T
1
+ X
3
+ X
4
5 (drive shaft horizontal) – X
3
S + T
2
+ X
3
6 (drive shaft horizontal) – X
4
S + T
1
+ X
4