Malfunction
Possible cause
Remedy
Volumetric or mechanical efficiency is
not achieved
See malfuntions "Viscosity >300 mm
2
/s"
See malfuntions "Viscosity <10 mm
2
/s"
See malfunctions "Output flow is not achieved"
Operation projected with too low and/or
too high speed
Observe the project planning information
in RE 10227
See malfunctions "Admissible level of contamination of the hydraulic fluid excee‐
ded"
Mixing of different fluids
Observe the information on hydraulic flu‐
ids in RE 90220
Admissible level of contamination of
the hydraulic fluid has been exceeded
Fluid aging and abrasion from system
Check the fluid contamination according
to the maintenance schedule
Insufficient filtration
Observe the project planning information
in RE 10227 and check according to
maintenance schedule
Unexpected inlet of contamination (e.g.
in case of fluid exchange)
Provide for a clean environment, filling
only via filter
Wrong direction of rotation of the drive
motor
Drive motor corrected incorrectly
Assembling only by authorized, trained
and instructed experts
Check the direction of rotation in case of
recommissioning after mains separation
Protective motor switch is activated
Drive motor too weak
Observe the information on the required
drive power in RE 10227
See malfuntion "Wrong connection of
drive motor"
See malfuntion "Pump wear"
Input speed too high/too low
Motor projected with too low and/or too
high speed
Observe the project planning information
in RE 10227
Air inlet through the output side
O-rings defective (wrong medium,
damage to the sealing, missing O-ring,
wrong O-ring)
Use the original combination part set, re‐
place the seals
Fluid leakage
Tank hangs too high
Observe the project planning information
in maintenance and commissioning of
hydraulic components RE 07800 / RE
07900
Fluid level too high
Pre-charged fluid tank (too high pres‐
surized) and/or pre-filling pump
Observe the project planning information
for pre-charged tank and/or pre-filling
pump
Defective seal
Exchange the damaged O-ring
See malfunctions "Interfaces not tight"
DOK-SYTROX-MPA01******-IT02-EN-P
Rexroth Sytronix SvP 70xx Motor-Pump Unit MPA01
Bosch Rexroth AG
87/123
Troubleshooting
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
