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A4... with HS5E(V)(L) control system Series 1x and 30 | Maintenance and repair
Bosch Rexroth AG, RE 92076-01-B/2021-04-22
10.2 Inspection
In order to keep the axial piston unit running reliably for a long time, Bosch
Rexroth recommends testing the hydraulic system and axial piston unit on a regular
basis, and documenting and archiving the following operating conditions:
Table 24: Inspection schedule
Tasks to be performed
Hydraulic
Check hydraulic fluid level in the reservoir.
system
Check the operating temperature under comparable
load condition at the drain port and in the reservoir.
Perform hydraulic fluid analysis: Viscosity, aging and
contamination
Check filter:
The replacement interval may vary depending on the
cleanliness of the hydraulic fluid. We recommend
using a contamination indicator.
Axial piston unit Check axial piston unit for leakage.
Early detection of hydraulic fluid loss can help to find
faults on the machine/system and rectify them. This is
why Bosch Rexroth recommends always keeping the
axial piston unit and system clean.
Check axial piston unit for unusual noise development. Daily
Check mounting elements for tight seating.
Check all fastening elements only when the hydraulic
system is switched off, depressurized and cooled
down.
10.3 Maintenance
The axial piston unit is low-maintenance when used as intended.
The service life of the axial piston unit is heavily dependent on the quality of the
hydraulic fluid. This is why we recommend changing the hydraulic fluid at least
once per year or every 2000 operating hours (whichever occurs first), or having
it analyzed by the hydraulic fluid manufacturer or a laboratory to determine its
suitability for further use.
The service life of the axial piston unit is limited to the service life of the bearings
used if the permissible operating parameters are observed. You can ask your local
contact person about service life based on load cycle. You can find their contact
information at
www.boschrexroth.com/addresses
Based on these parameters, a maintenance interval should be determined by the
system manufacturer for the replacement of the bearings and included in the
maintenance schedule of the hydraulic system.
Interval
Daily
Weekly
Yearly or every
2000 operating
hours (whichever
occurs first)
Yearly or every
1000 operating
hours (whichever
occurs first)
Daily
Monthly
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