Malfunction
Possible cause
Remedy
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 10235 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 10235
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 10235
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"
Inlet pressure > 0.6 bar
Faulty dimensioning of the suction line
(length, cross-sections, angle)
Observe the project planning information
in RE 10235
Speed too high
Observe the maximum speed in the pro‐
jekt planning
Foreign body in the suction channel
Remove the foreign body
Air pressure too low (also tank without
pressure compensation)
Observe the absolute pressure in the
project planning.
Inlet pressure >2 bar
See malfunction "Fluid leakage"
DOK-SYTROX-MPAS1******-IT01-EN-P
Rexroth Sytronix SvP 70xx Motor-Pump Unit MPAS1
Bosch Rexroth AG
65/83
Troubleshooting
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
