In 1959, power stations two hydraulic units were upgraded.

At that time the enterprise produced yearly millions of hydraulic units.

There continued work at design and introduction of new hydraulic units.

They installed a new hydraulic unit with four pumps.

Already in 1950 the first machine was presented with an automatic hydraulic unit.

This prototype lectern is made of wood with a separate hydraulic unit.

They also tried the test with a brand-new 737 hydraulic unit, and it did not jam, even in thermal-shock conditions.

One investigator who viewed the hydraulic unit described the damage as "more like a crack than a tear."

The DL-360 can also be modified to accept a hydraulic unit to power the press.

Newer hydraulic units rearrange the channels so that reversal is not possible, the aviation agency said.