Axial piston hydraulic motor 3721558 Parker F12, genuine Parker

Axial piston hydraulic motor 3721558 is a genuine Parker product for the hydraulic systems. The card also lists F12-030-MF-IV-D-000-0000-P0.

Parker F11 and F12 series units are bent-axis, fixed-displacement axial piston machines; the same design works as a hydraulic motor or a pump. The pistons run in a cylinder block set at an angle to the shaft, giving high efficiency, high speed and high working pressure. The number in the model code shows the displacement (F12-030, for example, is about 30 cm³/rev), and the rest of the code defines the shaft, mounting flange, port layout and direction of rotation. The unit is therefore chosen by its full model code: one with the same displacement but a different shaft or flange will not fit. A worn unit loses efficiency, runs hot, passes excess oil to the drain line and gets noisy. The unit's shaft seal withstands only limited case pressure; if the drain line blocks, case pressure rises and the shaft seal starts to leak. Check the drain line size and route during the swap. The unit's label carries the model code and serial number, which are used when ordering. Keep the ports capped in transit.

Specifications

Compatibility

Parker model code: F12-030-MF-IV-D-000-0000-P0. F12 series, displacement group about 30 cm³/rev. Other parts are in Hydraulic pumps.

Fitting

Seat the unit on clean, flat mounting faces, align the shaft coupling or gear and tighten the bolts to the specified torque. Fill the housing with oil before starting and connect the drain line to the uppermost housing port.