Axial piston variable pump A4VG. Geometric displacement 56 cm3. Proportional control, hydraulic, Pilot-pressure related p = 6 to 18 bar. Pressure cut-off. Stroking chamber pressure port X3, X4. Without DA control valve. Series 3, index 2. Direction of rotation (viewed on drive shaft): counter-clockwise. Filtration in the boost pump pressure line. Attachment filter with cold start valve and visual contamination indicator.
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