Danfoss 580001077 OSPM 70 ON Steering Hand Pump

The Yale/Danfoss 580001077 OSPM 70 ON Steering Hand Pump delivers precise manual- and power-assisted steering control in forklift hydraulic steering systems. Commonly installed in Yale forklifts used in warehouses and distribution centers, it is mounted within the steering column assembly and controls hydraulic flow for steering actuation; common replacements include Danfoss OSPM 80 ON, Yale 580001078, and Danfoss 150L0051. Key specifications include a 70 cc/rev displacement (OSPM 70), up to 100 L/min flow capacity, and a maximum operating pressure of 250 bar (3625 psi), with a precision-machined hydraulic valve body and internal spool and rotor set. It supports hydraulic steering with manual backup capability and weighs about 2.5 kg (5.5 lb).