John Deere A-AR97872 Hydraulic Radial Piston Pump

John Deere A-AR97872 Hydraulic Radial Piston Pump is designed by John Deere as a replacement pump under the part number of A-AR97872. This pump is designed for application in hydraulic circuits utilising a radial piston pump for conversion of drive power to pressurized oil flow. The radial design facilitates reliable high pressure production and hydraulic output control depending on correct matching of the pump to the equipment, operating it at the right speed and using clean oil.

As A-AR97872 represents a precise reference to the replacement, the matchability of the part needs verification by means of the part number and not visually since pump casings may appear identical despite dissimilarity in the shaft, mounting face, ports, rotation, displacement and control system configuration. The equipment type, serial numbers and identification of the installed pump need to be verified before ordering. In case of previous replacement of the pump, its fitted part number must be verified against the specifications of the equipment and not simply presumed based on past substitutions.

The pump takes oil from the reservoir and supplies the flow in the hydraulic circuit during operation. Pressure arises due to resistance in the system, while the valves control the flow. A radial piston pump relies on proper clearance inside it. Dirty oil, water, air, and an inlet restriction could destroy the running surfaces causing noise, low delivery rate, heat and slow operation of the hydraulic circuit. Thus, filtration and reservoir maintenance are vital.

The drive parts, coupling/cushion, suction hose, pressure hose and seals need to be examined before installation. Lubrication or priming needs to be done prior to starting. After the start-up, the technician will ensure there is no leak, strange noise, stable pressure and correct operation at low load before resuming operations on the equipment.

Rexton Hydraulic offers aftermarket new-condition John Deere A-AR97872 Hydraulic Radial Piston Pump and we also offer independent repair, testing, maintenance and troubleshooting services.