A10VSO28DFR1/32R-VPB12N00 A10VSO28DRF1/31R-PSA12N00 German Rexroth Axial Piston Pump

A10VSO28DFR1/32R-VPB12N00 A10VSO28DRF1/31R-PSA12N00 German Rexroth axial piston pump

FAQ:

Rexroth A10VSO hydraulic pump
1. What are the possible causes and solutions for insufficient or no oil output from the hydraulic pump?
• Reason:
Excessive resistance in the oil suction pipeline (such as clogged oil filter, low oil tank level, or air leakage in the inlet pipe).
Internal leakage of the pump (scratches on the oil distribution plate, poor sealing, sand holes, etc.).
The inclination angle of the inclined plate is too small and the displacement is insufficient.
Motor reversal (requires adjustment of phase sequence).
• Solution:
Clean the oil filter, add oil to the normal liquid level, and check the sealing of the pipeline.
Replace worn parts (such as plungers, oil distribution plates) or grind mating surfaces.
Adjust the variable piston to increase the inclination angle of the inclined plate.
2. How to adjust if there is still traffic output at the median level?
Reason: Deviation, looseness, or wear of the control mechanism (such as wear of the inclined plate ear shaft).
Solution: Reset the controller, tighten or replace damaged parts, and check the angle holding force.
How to troubleshoot the high vibration and noise during pump operation?
• Mechanical reasons:
The pump and motor shaft are not concentric, the coupling is damaged, or the bolts are loose.
Wear of bearings or variable head bearings (dry friction or impurities in the oil during start-up).
• Hydraulic reasons:
The oil inlet pipe is too thin, the oil filter is clogged, or the oil viscosity is too high.
• Solution:
Reinstall and replace worn parts.
Select appropriate oil to ensure smooth fuel tank design and piping.
What are the causes and solutions for overheating of the pump body?
• Reason:
Mechanical friction (such as improper clearance between moving parts) or liquid friction (high-pressure oil leakage converted into thermal energy).
Filter blockage leads to excessive back pressure in the return oil.

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