News and Helpful Videos

Sundstrand Sauer Danfoss Series 76 Hydraulic Remote Pump Control Port 1 The pilot pressure to port 1 allows flow from pump port B with an input shaft that rotates counter clockwise and flows from pump port A with an input shaft that goes clockwise. Port 2 On port 2 the pilot pressure allows the flow from pump port A that has an input shaft that rotates counter clockwise and flows from pump port B that has input shaft that goes clockwise. Note : At the top left corner of this picture, if you wish it to be neutral adjustment, make...

Vickers Vane Pump Part 2 Direct Acting Relief Valves and Remote Control Unloading Valve The pumps are similar to the ones in Part 1, except they deliver from Pressure #2 outlet that could be dropped and the larger pump unloads to the tank as long as the pressure is put into motion at the auxiliary pilot unloading connection.  The pressure put on the auxiliary pilot unloading connection makes the low pressure relief valve to be kept open. Two Pressure & Double Pump Action Direct Acting Relief Valves This outlet delivers the oil discharge from both pumps when pressures are much...

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Adapter Sleeve for Bearings A tapered adapter sleeve on a standard shafting will help it greatly to ease the mounting of the bearings. The outer surface of the sleeve is tapered to align the tapered bore of the bearing inner ring. This helps to give the needed tight fit between the inner ring and the shaft. The adapter sleeve is slotted to let contraction and is threaded at the small end to fit a lock nut. When...

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 – Multi Valve Bypass Function This diagram shows how this is hooked up for multi function use on the valve bypass. It just helps the machine move at short distances and slower speeds. If you need further information on this subject, please let us know. We will be glad to help you out. Call 800-361-0068 Email: 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: John Deere 755B Crawler Drain and Refill Capacities This chart will show the general rule of thumb drain and refill capacities for different units on the crawler Cooling system Fuel Tanks Crankcase Splitter Drive Inner Final Drive Outer Final Drive Reservoir Transmission Reservoir If you have any questions or comments, we would love to hear from you. Or call us at 800-361-0068 sales@hydrostatic-transmission.com