Commissioning 39/56
RE 93221-01-B/07.2013, A22VG Series 40, Bosch Rexroth AG
8 Commissioning
WARNING
Danger while working in the danger zone of a machine/system!
Danger to life, risk of injury or serious injuries!
▶ Pay attention to and rectify potential danger sources before operating the axial
piston unit.
▶ Nobody may stand in the danger zone of the machine/system.
▶ The emergency stop button for the machine/system must be within the
operator’s reach.
▶ Always follow the instructions of the machine/system manufacturer during
commissioning.
CAUTION
Commissioning of an incorrectly installed product!
Risk of injury and damage to equipment!
▶ Make sure that all electrical and hydraulic ports are connected or plugged.
▶ Only commission a completely installed fault-free product with original
accessories from Bosch Rexroth.
8.1 Initial commissioning
During all work for commissioning the axial piston unit, observe the general
safety instructions and intended use detailed in chapter 2 “Safety instructions”
on page8.
▶ Connect the gauge for the operating pressure, case pressure and suction
pressure to the specified measuring points on the axial piston unit or in the
hydraulic system, to check the technical data at first operation.
▶ During the commissioning process, monitor the temperature of the hydraulic fluid
in the reservoir to ensure that it lies within the permissible viscosity limits.
8.1.1 Filling the axial piston unit
Professional filling and air bleeding is necessary to prevent damage to the axial
piston unit and to maintain correct function.
The axial piston unit should be filled with a filling unit (10 μmfilter grade). The
axial piston unit must not be operated while it is being filled by the filling unit.
Use only a hydraulic fluid that conforms to the following requirements:
Details of minimum requirements for hydraulic fluid can be found in the Bosch
Rexroth data sheets 90220, 90221 and 90222. The titles of the data sheets can be
found in Table 1 “Required and supplementary documentation” on page 5. You
can find details of permissible and optimal viscosity in data sheet 93221.
To ensure the functional reliability of the axial piston unit, cleanliness level 20/18/15
according to at least ISO 4406 is necessary for the hydraulic fluid.
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