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A4VSH series 1x and 30 | Assembly
Bosch Rexroth AG, RE 92110-01-B/2022-03-22
7
R(L)
SB
S
B
B
K
A
U
S
A
T
K
2,3
Fig� 8: Inside-reservoir installation A4VSH with installation position 7–8
Drain port
K
, K
2
3
T, R(L)
Filling/air bleeding
F
Filling/air bleeding
U
Bearing flushing
S
Anti-cavitation valve port
A
S
Anti-cavitation valve port
B
Table 9: Inside-reservoir installation
Installation position
7 (drive shaft horizontal)
8 (drive shaft vertically up)
Bearing flushing at port U required (see data
sheet 92110)
7�3�3 Above-reservoir installation
Above-reservoir installation means that the axial piston unit is installed above the
minimum fluid level of the reservoir.
Above-reservoir installation is only possible at size 40 to 125 and should be avoided
at size 250.
Ensure that the axial piston pump with above-reservoir installation has
a minimum suction pressure of 1 bar at port S
valve during operation in all installation positions during operation and during
cold start. The maximum pressure of 16 bar at port S
exceeded.
For installation position (drive shaft upward): A check valve in the drain line
should be avoided and is only permissible on a case-by-case basis upon request.
Please consult your proper contact person at Bosch Rexroth.
8
K
2,3
SB
h
h
t min
t min
S
h
h
min
min
h
t min
h
min
SB
Air bleed
R(L)
T, U
A
T
U
R(L)
S
A
B
Minimum required immersion depth
(200 mm)
Minimum required distance to
reservoir bottom (100 mm)
Baffle (baffle plate)
Filling
R(L)
T, U
and S
of the anti-cavitation
B
and S
must not be
A
B
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