Bosch Rexroth 11 Series Instruction Manual page 27

▶ When designing the reservoir, ensure that there is an adequate distance between
the suction line and the drain line. This prevents the heated return flow from
being drawn directly back into the suction line.
▶ Make sure that a minimum suction pressure of 0.8 bar abs. (without charge
pump) or 0.7 bar abs. (with charge pump) is present at port "S" during operation
and at cold start, in all installation positions and installation locations for the
axial piston pump, see Fig. 8. See data sheet for other pressure values.
1 2
0
3
1
Fig. 8: Suction pressure
1 Absolute pressure gage
2 Standard pressure gage (relative)
The suction conditions improve with installation below and inside the reservoir.
▶ Make sure that the working environment at the installation site is completely
free of dust and foreign substances. The axial piston unit should be clean when
installed. Contamination of the hydraulic fluid can considerably affect the
function and service life of the axial piston unit.
▶ Use fiber-free cleaning cloths for cleaning.
▶ Use suitable, mild cleaning agents to remove lubricants and other heavy
contamination. Do not allow cleaning agents to enter into the hydraulic system.
0 1
-1
2
2
S
RE 92801-01-B/11.2018, A15VSO/A15VLO Series 11, Bosch Rexroth AG
Installation 27/60