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: Sundstrand Sauer Danfoss Series 20 – Neutral Start Switch Replacement Part 2Switch AdjustmentBe sure the control is in the neutral position. To check to see if it is in neutral you can see by rotating the control link assembly til the neutral start switch pin is immersed in the slot on the cam assembly.Put a constant checker to the 2 screws on the end of the switch.When the control is in the neutral position, turn it CCW...

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 – Side Cover Insert Change The material for the side cover insert has been changed to improve wear and tear on the insert. The new material is even more resistant to wear.To keep up with the new change, they have given the insert a new part number. The old one will no longer be available.In the diagram, it will show which units will be affected by the change. If you need further...

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 – Service Bulletin SB-9525This service bulletin deals with changes made to the 55,75 and 100cc variable pumps. It starts with serial number N-95-50-xxxxx.The diagram chart shows the old numbers that have been replaced with new part numbers. So please take note of this and keep up with it, when you need to order parts for replacement or repair. If you need further help with this, please let us know.Call 800-361-0068Email: sales@hydrostatic-transmission.com

At our Hydrostatic Pump Repair Site, we offer many types of HydrostaticTransmission Repair and information relating to Hydrostatic PartsToday we will discuss: Sundstrand Sauer Danfoss Series 90 – MDC with DC Electric Solenoid Override The European models needed adaptation, so the manifold that leads to the front of the MDC housing is being changed.The European unit’s solenoid valve has to have a thicker manifold to give way between the solenoid and the front of the MDC housing. The newer manifold will stick out closer to the mounting flange of the pump by reducing it to .2 inches.The thicker the manifold...

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Troubleshooting of Bearing Failures Part 1 This tells of helpful tips to recognize problems of bearing failure. These examples will be helpful if you or a customer complains of certain situations, cause bearing failure and you can identify the source of the problem. Letters A thru G will be the classifications codes that correspond to the reasons for the failure. These are common customer complaints. A – Overheated Bearing B – Noisy Bearing C – Replacements are...