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DOK-SYTROX-MPA01******-IT02-EN-P
Rexroth Sytronix SvP 70xx Motor-Pump Unit MPA01
16
Troubleshooting
16.1
How to Proceed for Troubleshooting
16.2
Malfunction Table PGH
Malfunction
Pump does not deliver / suck
Delivery pressure too low
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
Always act systematically and targeted, even under pressure of time. Ran‐
dom and imprudent disassembly and readjustment of settings might result in
the inability to restore the original error cause.
First get a general idea of how your product works in conjunction with the en‐
tire system.
Try to find out whether the product has worked properly in conjunction with
the entire system before the troubles occurred first.
Try to determine any changes of the entire system in which the product is in‐
tegrated:
●
Were there any changes to the product's operating conditions or ope‐
rating range?
●
Were there any changes or repair works on the entire system (machine/
system, electrics, control) or on the product? If yes: Which?
●
Was the product or machine used as intended?
●
How did the malfunction appear?
Try to get a clear idea of the error cause. Directly ask the (machine) operator.
If you could not remedy the occurred fault, please contact the Bosch Rexroth
Service.
chapter 12.3 "Service Repair and Spare Parts" on page 78
Possible cause
The pump is not bled
O-rings
defective
(wrong
damage to the sealing, missing O-ring,
wrong O-ring)
Sealing surfaces contaminated or dam‐
aged.
Coupling is missing and/or parts of the
coupling are missing
See malfunction"Wrong direction of rotation of the drive motor"
See malfunction "Air inlet through the output side"
See malfunction "Back pump is blocked"
See malfunctions "Back elements exceed maximum torque"
See malfunctions "Inlet pressure < 0.6 bar"
See malfunctions "Admissible level of contamination exceeded"
See malfunctions "Output flow is not achieved"
Bosch Rexroth AG
Remedy
Bleed the pump
medium,
Install/replace with original O-ring
Ensure cleanness and integrity of the
sealing surface.
Amend the coupling or coupling compo‐
nent.
85/123
Troubleshooting
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