Above-Reservoir Installation - Bosch Rexroth A4VG 35 Series Instruction Manual

Axial piston variable pump
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6
R
X
,X
F
1
2
1
T
h
S max
h
t min
h
min
9
F
1
X
T
1
1
R
h
X
S max
2
h
t min
h
min
Fig. 10: A4VG above-reservoir installation with installation position 6–10

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
permissible suction height h
7
1
F
2
S
SB
SB
10
S
F
2
SB
SB
T
, T
Highest drain port
1
2
F
, F
Filling/air bleeding
1
2
R
Air bleed port
S
Suction port
X
, X
Control pressure port
1
2
Ports F
and F
are part of the external piping and must be provided by the
1
2
customer to make filling and air bleeding easier.
Table 9: Above-reservoir installation
Installation position
6 (drive shaft horizontal)
7 (drive shaft horizontal)
8 (drive shaft down)
9 (drive shaft horizontal)
10 (drive shaft horizontal)
is derived from the total pressure loss.
S
F
1
F
2
S
T
2
h
S max
h
t min
h
min
F
1
T
X
2
2
S
F
2
R
h
X
S max
1
h
t min
h
min
h
t min
h
min
h
S max
SB
Air bleeding
Air bleeding the
the housing
stroking chamber
F
+ R
X
, X
2
1
F
(S) + F
(T
)
2
1
2
F
(S) + F
(T
)
X
, X
2
1
2
2
F
(S) + F
(T
)
X
2
1
1
1
F
(S) + F
(T
)
X
2
1
2
2
RE 92035-01-B/04.2018, Series 35 A4VG, Bosch Rexroth AG
Installation
= 800 mm. The
S max
8
F
S
F
1
X
,X
2
1
T
2
SB
h
t min
h
min
Minimum required immersion depth
(200 mm)
Minimum required distance to
reservoir bottom (100 mm)
Maximum permissible suction height
(800 mm)
Baffle (baffle plate)
Filling
F
+ F
+ X
2
1
2
1
F
(S) + F
2
1
F
(S) + F
1
2
1
F
(S) + F
2
1
F
(S) + F
2
1
33/64
2
h
S max
+ X
2
(T
)
2
(T
) + X
+ X
2
2
1
(T
) + X
1
1
(T
) + X
2
2

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