News and Helpful Videos

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Standard Bearings vs Precision Bearings Chart After seeing the dimensional tolerances of standard bearings, you can see the differences between the precision bearings on their tolerances.Precision bearings tolerances are smaller to about one half of the tolerances of standard bearings.But some of the standard bearings are within the same tolerances of a precision bearing tolerance.The chart shows the differences between the two. If you need further help with this, we will be glad to answer any questions.Call...

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Sauer Danfoss Control Gasket Change on MCV115/112The control gasket changed and the new style gasket needs to be used on this MCV115. The old style can still be used on the MCV112. It also can be used on manual displacement and MCV111 electric displacement controls.If you use the wrong gasket can cause uncontrolled pump displacement. If you need further assistance with this, please give us a call, email or leave a comment.Call 800-361-0068Email: sales@hydrostatic-transmission.com

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Pressure Reducing Valves A pressure reducing valve is an open pressure control valve. A pressure reducing valve knows when a sensing fluid pressure fluid has passed through the valve. When the pressure downstream is the same as the setting of the valve, the spool is particular closed causing a restricted flow path. When that much restriction is in to play, it turns any extra pressure energy ahead of the valve into heat. If the pressure, after the...

In our discussion today we will talk about Circuits and their differences In hydrostatic transmissions there are 4 components involved:Fixed Displacement MotorFixed Displacement PumpVariable Displacement MotorVariable Displacement Motor And these can be combined into 4 circuitsVariable Displacement Pump driving aVariable Displacement Motor Variable Displacement Pump driving aFixed Displacement Motor Fixed Displacement Pump driving aVariable Displacement Motor Fixed Displacement Pump driving aFixed Displacement Motor All of these circuits off different performance characteristics. In the following descriptions, the input speed is constant. When you are wanting to vary the input speed and introduce other control methods, the process of applications rapidly broadens....

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Sundstrand Sauer Danfoss Series 90 100 CC Pumps & Motors Charge Pump Change In BLN – 10107 Revision B talks about the change in the charge pump design in pumps 55cc thru 130cc frame sizes. The change is in the outer port plate is not the integral part of the charge pump cover and the distance plates are done away with.The change is effective as follows:55cc 93-1075cc 93-10100cc 93-15130cc 93-34 Options on the auxiliary pads are that...