Above-Reservoir Installation - Bosch Rexroth 31 Series Instruction Manual

30/60 Installation
9
T
F
L
SB
L S h
1 S max
h
t min
h
Fig. 9: Above-reservoir installation A10VO/A10VSO with installation position 9-12
Bosch Rexroth AG, A10VO, A10VSO Series 31, RE 92701-01-B/04.2018
7.3.3

Above-reservoir installation

Above-reservoir installation means that the axial piston unit is installed above the
min. fluid level of the reservoir.
To prevent the axial piston unit from draining, a height difference h
25 mm at port F is required in installation position 10.
Observe the maximum permissible suction height h
permissible suction height h
Because complete air bleeding and filling are not possible in installation positions 10
and 12, the axial piston unit should be air bled and filled in a horizontal position
before installation.
10
F
T
h
ES min
L
1
S
SB
min
Highest drain port
l, l
1
F Filling/air bleeding
S Suction port
h Minimum required immersion depth
t min
(200 mm)
Port F is part of the external piping and must be provided on the customer side
to make filling and air bleeding easier.
Table 10: Above-reservoir installation
Installation position
9 (drive shaft horizontal)
10 (drive shaft up)
11 (drive shaft horizontal)
12 (drive shaft down)
is derived from the total pressure loss.
S
11
L
1 S
F
T
SB
h
S max
h
t min
h
min
h
min
h
ES min
h
S max
SB
Air bleed
F
F
F
F
ES min
= 800 mm. The
S max
12
S
L
F
T
h
S max
SB
h
t min
h
min
Minimum required distance to
reservoir bottom (100 mm)
Minimum required height needed
to protect the axial piston unit from
draining (25 mm)
Permissible suction height (800 mm)
Baffle (baffle plate)
Filling
l (F)
l (F)
1
l (F)
1
l (F)
of at least
h
S max
h
t min
h
min