Hydraulic priority circuit

Details Hydraulic priority circuit Hydraulic priority circuit

B - Operations, Transporting

62

D

138/71.1

B62D 5/06 (2006.01) B66F 9/22 (2006.01)

Patent

CA 1087068

A HYDRAULIC PRIORITY CIRCUIT Abstract of the Disclosure A hydraulic priority circuit for a fork lift truck having a primary work system for providing power steering and a secondary work system for raising a fork along a mast and for tilting the mast. A variable speed electric motor drives a variable output pump to supply pressurized fluid which is divided by a flow divider into two streams leading to the primary and secondary work systems, respectively. A priority solenoid valve is controlled by a device which detects prese- lected conditions of the truck to direct all the fluid in the stream leading to the primary work system either to the primary work system when the truck is in drive or is rolling, or to the secondary work system when the truck is in neutral and stationary.

304085

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