A10VSO28DR1/31R-PKC62K03 A10VSO28DR1/31R-PKC62N00 A10VSO28DRG/31L-PKC62K03
A10VSO28DRG/31L-PKC62N00 A10VSO28DRG/31L-VSC62N00 Rexroth Germany spot axial piston pump excavator hydraulic pump
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. |
• Solution: |
Adjust the gap and increase the capacity of the cooler or fuel tank. |
Clean or replace the filter. |
How to solve the problem of oil leakage? |
• Common oil leakage points: |
Damaged spindle oil seal, internal leakage (high oil seal pressure), loose external pipeline or aging sealing gasket. |
• Solution: |
Replace the oil seal or defective shaft, check the size of the oil drain pipe, and tighten the joint. |
What are the key points of daily maintenance? |
• Oil management: |
Maintain oil temperature at 25-60 ℃, cleanliness level ≥ 8, and regularly test oil quality. |
• Regular inspection: |
Conduct a comprehensive inspection of seals, filters, and mechanical components every 6 months. |
After running for 3000 hours, it is necessary to check the status of the oil replenishment pump daily. |
Before starting: Ensure that the pump is filled with oil to avoid dry friction. |
How to adjust abnormal pressure (too high/too low)? |
• Low pressure: Check for pipeline leaks, overflow valve faults, or cylinder block distribution plate leaks. |
Excessive pressure: Adjust the overflow valve, check the directional valve or return oil pipeline. |
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precautions |
Installation requirements: The concentricity between the pump shaft and the motor shaft should be less than 0.05mm, and the suction height should not exceed 500mm. |
• Spare parts replacement: It is recommended to use original seals and wear-resistant components to ensure compatibility. |
A10VSO 18 series: |
A10VSO18DR/31R-PPA12N00, |
A10VSO18DR/31R-PPA12K01, |
A10VSO18DFR1/31R-PPA12N00,, |
A10VSO18DFR1/31R-PPA12N00, |
A10VSO18DFR1/31R-PPA12K01, |
A10VSO18DFR/31R-PPA12N00, |
A10VSO18DFLR/31R-PPA12N00, |
A10VSO18DG/31R-PPA12N00, |
A10VSO18DRG/31R-PPA12N00, |
A10VSO18DFE1/31R-PPA12N00, |
A10VSO18FHD/31R-PPA12N00, |
A10VSO18ED/31R-PPA12N00, |
A10VSO 28 series: |
A10VSO28DR/31R-PPA12N00, |
A10VSO28DR/31R-PPA12K01, |
A10VSO28DFR1/31R-PPA12N00, |
A10VSO28DFR1/31R-PPA12N00, |
A10VSO28DFR1/31R-PPA12K01, |
A10VSO28DFR/31R-PPA12N00, |
A10VSO28DFLR/31R-PPA12N00, |
A10VSO28DG/31R-PPA12N00, |
A10VSO28DRG/31R-PPA12N00 |
A10VSO28DFE1/31R-PPA12N00, |
A10VSO28FHD/31R-PPA12N00, |
A10VSO28ED/31R-PPA12N00, |
A10VSO 45 series: |
A10VSO45DR/31R-PPA12N00 |
A10VSO45DR/31R-PPA12K01, |
A10VSO45DFR1/31R-PPA12N00 |
A10VSO45DFR1/31R-PPA12N00, |
A10VSO45DFR1/31R-PPA12K02 |
A10VSO45DFR/31R-PPA12N00, |
A10VSO45DFR/31R-PPA12K01, |
A10VSO45DFR/31R-PPA12K26 |
A10VSO45DFLR/31R-PPA12N00, |
A10VSO45DG/31R-PPA12N00 |
A10VSO45DRG/31R-PPA12N00, |
A10VSO45DFE1/31R-PPA12N00, |
A10VSO45FHD/31R-PPA12N00, |
A10VSO45ED/31R-PPA12N00, |
A10VSO 71 series: |
A10VSO71DR/31R-PPA12N00 |
A10VSO71DR/31R-PPA12K01, |
A10VSO71DFR1/31R-PPA12N00, |
A10VSO71DFR1/31R-PPA12N00, |
A10VSO71DFR1/31R-PPA12K02, |
A10VSO71DFR/31R-PPA12N00, |
A10VSO71DFR/31R-PPA12K27 |
A10VSO71DFLR/31R-PPA12N00, |
A10VSO71DG/31R-PPA12N00, |
A10VSO71DRG/31R-PPA12N00, |
A10VSO71DFE1/31R-PPA12N00, |
A10VSO71FHD/31R-PPA12N00, |
A10VSO71ED/31R-PPA12N00, |
A10VSO 100 series:, |
A10VSO100DR/31R-PPA12N00, |
A10VSO100DR/31R-PPA12K01, |
A10VSO100DFR1/31R-PPA12N00, |
A10VSO100DFR1/31R-PPA12N00,, |
A10VSO100DFR1/31R-PPA12K01 |
A10VSO100DFR/31R-PPA12N00,, |
A10VSO100DFLR/31R-PPA12N00, |
A10VSO100DG/31R-PPA12N00,, |
A10VSO100DRG/31R-PPA12N00, |
A10VSO100DFE1/31R-PPA12N00,, |
A10VSO100DFE1/31R-PPA12K02, |
A10VSO100FHD/31R-PPA12N00 |
FAQ:
What is the maximum pressure rating?
• Continuous pressure: Up to 280 bar (4060 psi)
• Peak pressure: 350 bar (5075 psi)
4. What is the displacement volume?
The nominal displacement is 28 cm³/rev (1.71 in³/rev).
5. What type of hydraulic oil should be used?
Recommended fluids:
• Mineral-based hydraulic oils (ISO VG 15–68)
• Synthetic or biodegradable fluids (check compatibility)
• Maintain cleanliness (ISO 4406 18/16/13 or better)
6. What are common applications for the A10VSO28?
• Construction machinery (excavators, loaders)
• Industrial presses & injection molding
• Material handling equipment
• Agricultural machinery