Bosch A4VSG - Above-Reservoir Installation

30/60 Installation
Bosch Rexroth AG, RE 92100-01-B/09.2012 Series 10, 11 and 30,
7.3.2 Above-reservoir installation
Above-reservoir installation means that the axial piston unit is installed above the
minimum fluid level of the reservoir.
Observe the maximum permissible suction height h
Smax
=800mm. The
permissible suction height h
s
is derived from the total pressure loss.
K
3
R(L)
B(A)
B(A)
K
3
R(L)
R(L)
T
T
U
R(L)
B
A
R(L)
B A
T
T
R(L)
SB
zu S
1)
a
min
K
2
SB
SB
SB
a
min
a
min
a
min
h
t min
h
min
h
t min
h
min
h
t min
h
min
zu S
1)
zu S
1)
zu S
1)
K
2
K
2
K
2
15 15 0
15 15 0
zu S
1)
SB
a
min
zu S
1)
h
t min
h
min
h
t min
h
min
h
t min
h
min
a
min
K
2
K
2
SB
7 8
10 11 12
9
T, R(L),
K
2
, K
3
Fluid filling + air bleeding
(case drain port)
h
min
Minimum required spacing to
reservoirbottom(100mm)
A, B Pressure port a
min
When designing the reservoir, ensure
adequate distance between the
suction line and the case drain line.
This prevents the heated, return flow
from being drawn directly back into
the suction line.
S Suction port
U Bearing flushing
SB Baffle (baffle plate)
h
t min
Minimum required immersion depth
(200 mm)
1)
If an attachment pump is fitted, please note the suction height and minimum inlet pressure stated in the data sheet for the attachment
pump. For an overview of attachment pumps, please refer to data sheetRE 92100.
Fig. 9: Above-reservoir installation A4VSG with installation position 7–12