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7 Assembly
Prior to installation, the following documents should be to hand:
• Data sheet of the axial piston unit (contains the permissible technical data, main
dimensions and circuit diagrams of standard versions)
• Installation drawing for the axial piston unit (can be obtained from your contact
person at Bosch Rexroth, if required)
• Hydraulic circuit diagram for the axial piston unit (in the data sheet and on the
installation drawing)
• Hydraulic circuit diagram for the machine/system (available from the
machine/system manufacturer upon request)
• Order confirmation (contains the order-related technical data for your axial
piston unit)
7�1 Unpacking
The axial piston unit comes in a polyethylene material (PE) corrosion protection film.
CAUTION! Danger due to falling parts!
If the packaging is not opened correctly, parts may fall out and damage the parts
or even result in injury.
▶ Place the packaging on a level underground with sufficient load-bearing
capacity.
▶ Only open the packaging from the top.
▶ Remove the packaging from the axial piston unit.
▶ Check the axial piston unit for transport damage and completeness;
see chapter 4 "Scope of delivery" on page 19.
▶ Dispose of the packaging in accordance with the regulations in your country.
7�2 Installation conditions
The installation position and location of the axial piston unit essentially determine
how it is installed and commissioned (such as when filling and air bleeding the
axial piston unit).
▶ Fasten the axial piston unit so that the expected forces and torque can
be transferred without any danger. The machine/system manufacturer is
responsible for sizing the fasteners.
▶ Observe the permissible radial forces on the drive shaft when driving with
radial loading (belt drives). If necessary, store the belt pulley separately.
▶ Make sure the axial piston unit is always filled with hydraulic fluid during
commissioning and operation. Also do this also after relatively long standstill
periods, since the axial piston unit may drain out through the hydraulic lines.
▶ Direct the leakage in the housing area to the reservoir through the highest
drain port. Use a line size that matches the port.
▶ A check valve in the drain line is only permissible on a case-by-case basis
following consultation. Please consult your proper contact person at
Bosch Rexroth.
▶ To prevent the transmission of structure-borne noise, use elastic elements
to decouple all connecting lines from all vibration-capable components
(e.g. reservoir, frame parts).
Assembly | A4VSH series 1x and 30
RE 92110-01-B/2022-03-22, Bosch Rexroth AG
27/64
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