44/60 Commissioning
Bosch Rexroth AG
, A15VSO/A15VLO Series 11, RE 92801-01-B/11.2018
Use only a hydraulic fluid that corresponds to the following requirements:
You can find details of the minimum requirements on hydraulic fluids
in 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.
Bosch Rexroth evaluates hydraulic fluids on the basis of the Fluid Rating
according to data sheet 90235. For hydraulic fluids which have been positively
evaluated in the Fluid Rating, please refer to data sheet 90245 "Bosch Rexroth
fluid rating list for Rexroth hydraulic components (pumps and motors)". The
hydraulic fluid should be selected so that the operating viscosity in the operating
temperature range is within the optimum range (
ν
opt
; see selection diagram in the
data sheet 92801).
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. At a hydraulic fluid
viscosity of less than 10 mm²/s (e.g. due to high temperatures during short-term
operation) at the drain port, a min. cleanliness level of 19/17/14 as defined
in ISO 4406 is required. You can find details on the permissible and optimal
viscosities and admissible temperatures in data sheet 92801.
Proceed as follows to fill the axial piston unit:
1.
Place a drip tray under the axial piston unit to collect any hydraulic fluid that may
leak.
NOTICE!
Contaminated hydraulic fluid!
The cleanliness levels of commercial hydraulic fluid are usually insufficient for our
components.
▶
Use a suitable filter system to filter hydraulic fluids during filling to minimize solid
particle contamination and water in the hydraulic system.
2.
Fill and air bleed the axial piston unit via the appropriate ports; see chapter 7.3
"Installation position" on page 28. Also fill the hydraulic lines of the system.
NOTICE!
Risk of property damage due to inadequate lubrication!
Product can be damaged or destroyed!
▶
When using a shut-off valve in the suction and/or drain line, make sure the drive
of the axial piston unit can only be started when the shut-off valves are open.
3.
When using a shut-off valve in the suction and/or drain line, only operate the axial
piston unit when the shut-off valves are open.
4.
Test the direction of rotation of the drive motor. To do this, run the drive motor
briefly at the lowest rotational speed (inching). Make sure that the direction
of rotation of the axial piston unit agrees with the details of the name plate,
see chapter 5.3 "Product identification", Fig. 4 Name plate A15VSO on page 20.
5.
Operate the axial piston pump at a low rotational speed (starter speed for
internal combustion engines or inching mode for electric motors) until the
hydraulic system is completely filled and air bled. To verify, drain the hydraulic
fluid at the drain port until there are no bubbles in the fluid.
Procedure
