Series 90 Axial Piston Pumps

Technical Information Features and options

VALVES

Multifunction valve, pressure limit er, pressure regulation, option 1

Bypass Function

In some applications it is desirable to bypass fluid around the variable displacement pump when pump shaf t rotation is either not possible or not desired. For example, an inoperable vehicle may be moved to a service or repair location or winched onto a trailer without operating the prime mover. To provide for this, Series 90 pumps are designed with a bypass function.

The bypass is operated by mechanically rotating the bypass hex on both multifunction valves three (3) turns counterclockwise (CCW). This connects working loop A and B and allows fluid to circulate without rotating the pump and prime mover.

C Caution

Possible pump and/or motor damage

Bypass valves are intended for moving a machine or vehicle for very short distances at very slow speeds. They are NOT intended as tow valves.

SPEED SENSOR