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7�3�2 Inside-reservoir installation
Risk of damage with inside-reservoir installation!
To prevent damage to the axial piston unit, all plastic parts (e.g. protective plugs,
covers), except for the tamper-proof caps, must be removed prior to installation
in the reservoir.
▶ Remove all plastic parts, except for the tamper-proof caps, before you install
the axial piston unit in the reservoir. Make sure that no parts of them remain
in the reservoir.
▶ Remove the protective plug from the suction port S and open at least one
T port.
Inside-reservoir installation is when the axial piston unit is installed in the reservoir
below the minimum fluid level. The axial piston unit is completely below the
hydraulic fluid.
If the minimum fluid level is equal to or below the upper edge of the pump,
see chapter 7.3.3 "Above-reservoir installation" on page 30�
Axial piston units with electric components (e.g. electric controls, sensors)
must not be installed in a reservoir below the fluid level.
If inside-reservoir installation is intended nevertheless, the IP protection
class and the medium compatibility of the electric components used must be
checked in the individual case. Please consult your proper contact person at
Bosch Rexroth to commission an examination of the medium compatibility.
With small tank sizes or unfavorable suction conditions, we recommend fitting
a suction pipe to suction port S and fitting a pipe to drain port T
In this case, the other drain port must be plugged. The housing of the
axial piston unit must be filled before fitting the piping and filling the reservoir
with hydraulic fluid. To prevent draining of the housing, the reservoir has to be
filled with hydraulic fluid as soon as possible�
Installation position 4
Air bleed
Filling
T
T
1)
1
1
T
1
SB
h
T
S
3
T
2
h
1)
The housing of the axial piston unit is
to be filled via T
before attachment of
1
the piping
Installation | A15VO/A15VLO series 12
NOTICE
Installation position 5
Air bleed
T
2
T
1
t min
T
min
2)
The housing of the axial piston unit is
to be filled via T
the piping
RE 92512-01-B/2023-03-27, Bosch Rexroth AG
29/60
or T
�
1
2
Filling
T
2)
2
T
2
S
h
t min
3
h
SB
min
before attachment of
2
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