Hydraulic Steering - Front
This hydraulic steering uses a power steering pump, Char-Lynn valve, and 1 or 2 cylinders. Components must be matched to work properly. For instance: By using two 2" bore by 8" stroke cylinders with a 6 gallon pump and Char-Lynn #13 valve, you should have 2 1/2 turns lock to lock.
By changing to 2 1/2" bore by 8" stroke cylinders and not changing anything else, you will have 3 turns lock to lock. You must tell your hydraulic supplier how many turns of the steering wheel you would like to have and be willing to match components to achieve it.
Rule of Thumb: 2" or 2 1/2" bore cylinders with a 6 gallon per minute pump at 1600 PSI will produce good steering.
Danfoss hydrostatic steering components are used in vehicles and shops where the driver or helmsman has to control high steering forces reliably, comfortably, and with maximum safety.
The operation of Danfoss steering units OSPB/OSPC/OSPL is hydrostatic. That is to say there is no mechanical connection between the steering column and the steered wheels. Instead, there are hydraulic pipes and hoses between the steering unit and steering cylinders. When the steering wheel is turned, the steering unit meters an oil column proportional to the rate of rotation of the steering wheel.
The volume of oil is directed to the appropriate side of the steering cylinder, while the displaced oil is simultaneously directed to the tank.