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DOK-SYTROX-MPAS1******-IT01-EN-P
Rexroth Sytronix SvP 70xx Motor-Pump Unit MPAS1
Malfunction
Admissible level of contamination of
the hydraulic fluid has been exceeded
Wrong direction of rotation of the drive
motor
Protective motor switch is activated
Input speed too high/too low
Air inlet through the output side
Fluid leakage
Inlet pressure > 0.6 bar
Inlet pressure >2 bar
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
Possible cause
Fluid aging and abrasion from system
Insufficient filtration
Unexpected inlet of contamination (e.g.
in case of fluid exchange)
Drive motor corrected incorrectly
Drive motor too weak
See malfuntion "Wrong connection of
drive motor"
See malfuntion "Pump wear"
Motor projected with too low and/or too
high speed
O-rings
defective
(wrong
damage to the sealing, missing O-ring,
wrong O-ring)
Tank hangs too high
Fluid level too high
Pre-charged fluid tank (too high pres‐
surized) and/or pre-filling pump
Defective seal
See malfunctions "Interfaces not tight"
Faulty dimensioning of the suction line
(length, cross-sections, angle)
Speed too high
Foreign body in the suction channel
Air pressure too low (also tank without
pressure compensation)
See malfunction "Fluid leakage"
Bosch Rexroth AG
Remedy
Check the fluid contamination according
to the maintenance schedule
Observe the project planning information
in RE 10235 and check according to
maintenance schedule
Provide for a clean environment, filling
only via filter
Assembling only by authorized, trained
and instructed experts
Check the direction of rotation in case of
recommissioning after mains separation
Observe the information on the required
drive power in RE 10235
Observe the project planning information
in RE 10235
medium,
Use the original combination part set, re‐
place the seals
Observe the project planning information
in maintenance and commissioning of
hydraulic components RE 07800 / RE
07900
Observe the project planning information
for pre-charged tank and/or pre-filling
pump
Exchange the damaged O-ring
Observe the project planning information
in RE 10235
Observe the maximum speed in the pro‐
jekt planning
Remove the foreign body
Observe the absolute pressure in the
project planning.
65/83
Troubleshooting
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