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Maintenance and repair
Bosch Rexroth AG
, A15VSO/A15VLO Series 11, RE 92801-01-B/11.2018
10.2 Inspection
In order for the axial piston unit to be reliable and long-lasting, Bosch Rexroth
recommends inspecting the hydraulic system and axial piston unit on a regular basis,
and documenting and archiving the following operating conditions:
Table 14: Inspection schedule
Tasks to be performed
Interval
Hydraulic
system
Check hydraulic fluid level in the reservoir.
daily
Check the operating temperature under comparable
load condition at the drain port and in the reservoir.
weekly
Conduct hydraulic fluid analysis: Viscosity, aging and
contamination
Yearly or every 2000
operating hours
(whichever occurs first)
Check filter.
The replacement interval may vary depending on the
degree of contamination of the hydraulic fluid. We
recommend using a contamination indicator.
Yearly or every 1000
operating hours
(whichever occurs first)
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.
daily
Check axial piston unit for unusual noise
development.
daily
Check mounting elements for tight seating.
All fasteners have to be checked when the hydraulic
system is switched off, depressurized and cooled
down.
Monthly
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. 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 details, 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.
