Malfunction
Possible cause
Remedy
Inlet pressure > 0.6 bar
Faulty dimensioning of the suction line
(length, cross-sections, angle)
Observe the notes in the project plan‐
ning manual "RE 10227 (PGH.-3X) / RE
10223 (PGH.-2X) / RE 10213 (PGF)".
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"
Output flow is not achieved
Pump sucks in air
Check the level in the fluid tank and cor‐
rect it, if necessary. Observe the infor‐
mation on the design of the lines in hy‐
draulic trainer, volume 3 and project
planning information.
Input speed too low
Necessary drive power in "RE 10227
(PGH.-3X) / RE 10223 (PGH.-2X) / RE
10213 (PGF)" during project planning.
See malfunctions "Admissible level of contamination of the hydraulic fluid excee‐
ded"
See malfuntion "Pump wear"
Permanent output pressure > p
N
con‐
tinuously
Line cross-section too little
Observe the information on the design
of the lines in hydraulic trainer, volume 3
and project planning information
Flow resistances too high
Admissible load exceeded
For limiting the operating pressure and
for the solenoid-actuated discharging of
the operating pressure, install a pump
safety block. Therefore, please observe
the notes in "RE 10227 (PGH.-3X) / RE
10223 (PGH.-2X) / RE 10213 (PGF)".
Wear caused by radial force on the
shaft
Incorrect installation
Observe the installation information
Tightening torque for the screws is too
low
Observe the tightening torques in the in‐
stallation information
See malfuntion "Pump wear"
Wear caused by axial thrust on the
shaft
Incorrect installation
Observe the installation information of
the coupling manufacturer
See malfuntion "Pump wear"
Pump wear
Contaminated or wrong operating me‐
dium
Filter or exchange the operating medi‐
um, perform regular controls.
Tab. 13-1:
Malfunction table internal gear pump
Bosch Rexroth AG
DOK-SYTROX-MPES2******-IT01-EN-P
Rexroth Sytronix FcP 50xx/70xx Motor-Pump Unit MPES2
92/143
Troubleshooting
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01