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Sundstrand Sauer Danfoss Series 40 M46 Filter Adapter Sundstrand Sauer Danfoss Series 40 M46 Minor Repairs and Replacement Filter Adapters To remove the filter adapter from the pump housing you take off three hex head screws with a 1/2″ wrench or three 12 point head screws with a 5/16″ wrench. Take off the Orings (earlier units) or gasket (later units). The early production units use a filter adapter with two orings, later ones have three orings. Always change your orings. On the earlier units, install orings in the grooves of the filter adapter. Then you can install the adapter onto...

Komatsu Excavator PC150-3 Hydraulic Main Pump This Komatsu PC150-3 Hydrostatic/Hydraulic Main Pump Repair is serviced for a Komatsu Excavator part number 708-25-20100. We offer the repair of this Komatsu Hydrostatic/hydraulic main pump repair for $7500.00. And that does not include final drive and gear box. This price is for repair of your pump only. For exchange prices there is a $1500.00 core charge, that is refundable. Please call to check our stock of exchange units, as it changes daily. The item carries a one year warranty, and is remanufactured back to Oem specs using Komatsu parts, each Komatsu hydraulic/ Hydrostatic...

Meter in Circuitry – speed controlled extentions In the circuit illustrated, the restrictor type pressure compensated flow control valve is set for a 3 GPM. Relief valve setting is 500 PSI. Work load pressure is 200 PSI. The spring biasing the compensator spool has value of 100 PSI. During system operation, the work load pressure of 200 PSI, plus the 100 PSI spring, bias the compensator spool. The Pump attempts to push its total flow of 5 GPM through the needle valve orifice. When pressure ahead of the needle valve reaches 300 PSI, the compensator spool moves and cause a...

Sundstrand Sauer Danfoss 90 Series Valve Change Sundstrand Sauer Danfoss issued a valve change in its bulletin SB-1995-026.This was a product improvement they made to the valve. This took affect for Series 90 42cc thru 130cc.Listed in the chart are the old part numbers and the new part number for repairs you may need and use the correct part numbers. This is for repair, do not use this to replace the old style with the new style valve plate.The old style valve plates will be obsoleted and no longer available as a service part. If you have any questions on...

Sundstrand Sauer Danfoss Series 90 End Cap Gasket Change On service bulletin SB1989-009 it discusses the change in schematics of the endcap on a 55cc pump that uses the same part number on the gasket, for the twin port and axial port endcap choices.The old style endcaps will no longer be available and will not be available for spare parts either. The endcaps can be use on older models. When using new endcaps, you must use new gaskets.The old style end cap gaskets are available on service parts to fix earlier models. If you need more info on this, please...