Bosch Rexroth 10 Series Instruction Manual page 46

46/72 A10FZO, A10VZO, A10FZG and A10VZG series 10 | Installation
Information on
routing of lines
Bosch Rexroth AG, RE 91485-01-B/2021-11-18
The machine/system manufacturer is responsible for dimensioning of the lines.
Connect the axial piston unit to the rest of the hydraulic system in accordance with
the hydraulic circuit diagram of the machine/system manufacturer.
The ports and fastening threads are designed for the p
pressures of the respective ports, see Tabelle 25 to Tabelle 28
"Ports A10FZO, A10VZO, A10FZG and A10VZG" starting on page 48.
The machine/system manufacturer is required to ensure that the connecting
elements and lines correspond to the specified application conditions
(pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.
Connect only hydraulic lines that are match the axial piston unit port
(pressure level, size, system of units).
Observe the following information when routing the suction, pressure and
drain lines.
• Lines and hoses should be installed without pre-charge pressure so no further
mechanical forces are applied during operation that will reduce the service life of
the axial piston unit and, possibly, the entire machine/system.
• Use suitable seals as sealing material.
• Suction line (pipe or hose)
– The suction line should be as short and straight as possible.
– Measure the line cross section of the suction line so the pressure at the suction
port does not drop below the minimum permissible pressure. Make sure the
maximum suction pressure is not exceeded (e.g. when prefilling).
– Make sure the connections and connecting elements are airtight.
– The hose must be pressure-resistant, also to external air pressure.
• Pressure line
– For the pressure lines, use only pipes, hoses and connecting elements rated
for the working pressure range specified in data sheet 91485 (see Tabelle 25 to
Tabelle 28).
• Drain line
– Always route the drain lines so that the housing is constantly filled with
hydraulic fluid and to ensure no air gets through the shaft seal, even during
extended standstill periods.
– The case pressure must never exceed the limit values specified for the
axial piston unit in the data sheet.
– The drain line inflow in the reservoir should always be below the minimum
fluid level (see chapter 7.3 "Installation position A10FZO, A10VZO" and
"Installation position A10FZG, A10VZG" starting on page 33).
• If the axial piston unit is equipped with installed screw fittings, do not remove
them. Screw the stud end of the fitting directly into the installed fitting.
permissible
max