Maintenance and repair 55/68
RE 93100-01-B/2019-09-10, A20V(L)O Series 1, Bosch Rexroth AG
Table 20: Inspection schedule
Tasks tobe performed Interval
Hydraulic system Check hydraulic fluid level inthe reservoir. Daily
Check theoperating temperature under comparable load
condition atthedrain port and inthe reservoir.
Weekly
Conduct hydraulic fluid analysis: Viscosity, aging and
contamination
Yearly orevery
2000 operating
hours (whichever
occursfirst)
Check filter.
The replacement interval may vary depending onthe
cle
anliness ofthehydraulic fluid. We recommend using
acontamination indicator.
Yearly orevery
1000 operating
hours (whichever
occursfirst)
Axial piston unit Check axial piston unit for leakage.
Early detection ofhydraulic fluid loss can help tofind
fault
s onthe machine/system and rectify them. This
iswhy BoschRexroth recommends always keeping
theaxial piston unit and system clean.
Daily
Check axial piston unit for unusual noise development. Daily
Check mounting elements for tight seating.
All fasteners have tobe checked when thehydraulic
sy
stem isswitched off, depressurized and cooled down.
Monthly
10.3 Maintenance
The axial piston unit islow-maintenance when used asintended.
The service life oftheaxial piston unit isheavily dependent onthe quality
ofthehydraulic fluid. This iswhy we recommend changing thehydraulic fluid atleast
once per year orevery 2000 operating hours (whichever occurs first), orhaving
itanalyzed bythehydraulic fluid manufacturer oralaboratory todetermine its
suitability for further use.
The service life oftheaxial piston unit islimited tothe service life ofthebearings
used. You can ask your local contact person about service life based onload cycle.
You can find their contact information at
www.boschrexroth.com/addresses
Based onthese details, amaintenance interval should bedetermined
bythesystem manufacturer for thereplacement ofthebearings and included
inthe maintenance schedule ofthehydraulic system.