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Eaton Hydrostatic Transmission Controls for Models 33-76 Reverse When you put the control spool to port control pressure (S1 servo piston) that will reverse the way the flow goes in a variable displacement pump when it is placed in the opposite way.  The positive feedback linkage is still the same. The control spool is transferred to a metering point of view. The control pressure to the servos needs to be dealt with the servo piston spring impact and pressure drives applied on the swashplate by the pump pistons. And if you have a drop in pressure, the servo piston springs...

Eaton Series 76 Hydraulic Unit – Internal Pressure Override This override part of the unit gives you an outstanding representation and response that eliminates the need for an external hose and hardware.  You can alter the pressure ranging with a shim to make it operate at 1000 to 6000 PSI. The diagrams show ports, internal charge pressure, shim and system pressure. If you need more explanation about internal pressure override, we will be glad to talk with you. 800-361-0068 sales@hydrostatic-transmission.com

Eaton 76 Series Electrohydraulic Stroke Control This control does away with the need for a MDC valve and put the swashplate in correlation to the electrical commands. It has a lower DC electrical current than most. The power in which this travels is serviced by a lever driven potentiometer that goes to a 12 vdc battery. Listed below are some characteristics of this unit: Easily use of a remote control. Uses very low power to run the unit. Has a safe feedback for when it loses power. Very easy to use in more ways than one. Excellent control and spot on...

KA18 Relief Valve Performance Different kinds of directional valves for different systems: differential area, full flow, screw adjusted r/v differential area, full flow, tamper proof r/v differential area, full flow, dual pressure r/v no relief valve, cavity is plugged up.     Circuit Port Options Are: differential area r/v that has anti cavitation check – with or without tamper proof option anti cavitation check differential area r/v – with or without tamper proof port restrictor for meter in port restrictor for meter out port restrictor for dual direction restrictor pilot operated check – lock valve   If you need further...

Sundstrand Sauer Danfoss Series 40 Variable Displacement Motor M46 Diagram The break down and parts list is very helpful when you need to order or replace parts. And can help in telling how to assemble the unit also. So if you have the breakdown and need to order parts, it would be helpful to your supplier to see it also. The supplier can also tell you if the job may need to be done by a trained technician. Sometimes when parts are not put back together properly, it will cause failure when running the unit. If you need further information...