Bosch Rexroth Sytronix FcP 50 Series Operating Instructions Manual page 94

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