Unit · AXIAL-PISTON PUMP
AA4VG56HWD2/31R-PTC52F075DR909442715
Axial piston pump Bosch Rexroth series A4VG, type code AA4VG56HWD2/31R-PTC52F075D, material number R909442715. Nominal size: NG 56. Axial piston unit: swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi (A4V). Operating mode: pump, closed circuit (G). Control device: proportional control hydraulic mechanical servo (HW). Pressure cut-off: pressure cut-off (D). DA control valve: DA control valve, fixed setting (2). Direction of rotation: viewed on drive shaft clockwise (R). Drive shaft: splined shaft ANSI B92.1a for combination pump – 1st pump (T). Mounting flange: SAE J744 2-hole (C). Working port (port plate): SAE working port A and B, top and bottom suction port S bottom (52). Boost pump: integrated boost pump with and without through drive (F). Through drive: flange SAE J744 Hub for splined shaft, 127-2 (C) 1 1/4 in 14T 12/24DP (07). High-pressure relief valve Setting range ∆pHD: high-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass (5). Filtration boost circuit/external boost pressure supply: filtration in the boost pump pressure line Ports for external boost circuit filtration (Fe and Fa) (D).
- Number
- R909442715
- Type code
- AA4VG56HWD2/31R-PTC52F075D
- Group
- A4VG 56
- Edition
- 06/2020
This parts list has no drawing.
| Pos. | Number | Name | Qty | Add to inquiry |
|---|---|---|---|---|
| 1 | R909441173 | ROTARY GROUP Assembly parts list →L | 1 | |
| 2 | R909437357 | CONTROL Assembly parts list →L | 1 | |
| 3 | R909441758 | CONNECTION PLATE Assembly parts list →L | 1 | |
| 4 | R909442173 | INTERNAL GEAR PUMP Assembly parts list →L | 1 | |
| 5 | R902018885 | CONTROL MODULE Assembly parts list →L | 1 | |
| 7 | R909414722 | CONTROL CARTRIDGE Assembly parts list →L | 1 | |
| 10 | R909440945 | HOUSING | 1 | |
| 11 | R909430641 | POITIONING PIN | 1 | |
| 20 | R909154480 | SCREW PLUGD | 1 | |
| 21 | R909153371 | SCREW PLUGD | 2 | |
| 22 | R909154478 | SCREW PLUGD | 3 | |
| 23 | R909153815 | SCREW PLUGD | 2 | |
| 27 | R909831318 | DOUBLE BREAK-OFF PLUG | 2 | |
| 28 | R909156496 | NOZZLE | 2 | |
| 37 | R909087912 | SCREW PLUG | 1 | |
| 46 | R909435856 | ECCENTRIC SCREW | 1 | |
| 47 | R909153271 | SEALING NUTD | 1 | |
| 49 | R909156497 | NOZZLE | 1 |
Parameters from the type code
| Item | Meaning | Code |
|---|---|---|
| Axial piston unit | Swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi | A4V |
| Operating mode | Pump, closed circuit | G |
| Size (NG) | 56 | 56 |
| Control device | Proportional control hydraulic mechanical servo | HW |
| Pressure cut-off | Pressure cut-off | D |
| DA control valve | DA control valve, fixed setting | 2 |
| Direction of rotation | Viewed on drive shaft clockwise | R |
| Drive shaft | Splined shaft ANSI B92.1a for combination pump – 1st pump | T |
| Mounting flange | SAE J744 2-hole | C |
| Working port (port plate) | SAE working port A and B, top and bottom suction port S bottom | 52 |
| Boost pump | Integrated boost pump with and without through drive | F |
| Through drive | Flange SAE J744 Hub for splined shaft, 127-2 (C) 1 1/4 in 14T 12/24DP | 07 |
| High-pressure relief valve Setting range ∆pHD | High-pressure relief valve 3600 to 6100 psi direct operated, fixed setting (250 to 420 bar) with bypass | 5 |
| Filtration boost circuit/external boost pressure supply | Filtration in the boost pump pressure line Ports for external boost circuit filtration (Fe and Fa) | D |