• Sundstrand Sauer Danfoss Double Row Deep Groove Ball Bearings
    Sundstrand Sauer Danfoss Double Row Deep Groove Ball Bearings
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    We will be discussing ball bearings. This is just one of many types. Double Row Deep Groove Ball Bearing The Double Row Deep Groove Ball Bearing embodies the same principle of design as the single row bearing. However, the grooves for the two rows of balls are so positioned that the load lines through the…

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  • Sundstrand Sauer Danfoss Series 40 Change in The Bracket Design
    Sundstrand Sauer Danfoss Series 40 Change in The Bracket Design
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    Sundstrand Sauer Danfoss Series 40 Change in The Bracket Design They are making changes to the 38 degree MDC bracket. It has reconfigured the neutral return bracket by putting more material in the control neutral adjust area of the neutral return bracket. This will make it harder to fail if the limit stops go past…

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  • Sundstrand Sauer Danfoss Series 40 Improved Seal Retention
    Sundstrand Sauer Danfoss Series 40 Improved Seal Retention
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    Sundstrand Sauer Danfoss Series 40 Improved Seal Retention   In this diagram it will show that Danfoss added a flat washer in front of the input shaft lip seal to boost the seal retention. They moved over the snap ring groove to make room for it. And its makes it where it is non interchangeable….

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  • Sundstrand Sauer Danfoss Series 20 How To Tell Bad Servo Sleeve & Piston
    Sundstrand Sauer Danfoss Series 20 How To Tell Bad Servo Sleeve & Piston
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    Sundstrand Sauer Danfoss Series 20 How To Tell Bad Servo Sleeve & Piston In diagram number one you will see fractures in the recess part, this lets you know that the sleeve was abused by dropping the servo sleeve onto itself. In diagram number two shows scoring inside the bore of the sleeve, which means…

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  • Sundstrand Sauer Danfoss Series 15 All Types of Pumps & Motors
    Sundstrand Sauer Danfoss Series 15 All Types of Pumps & Motors
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    Sundstrand Sauer Danfoss Series 15 All Types of Pumps & Motors   There all types of Series 15 pumps and motors Inline Uline Split The model and part numbers will tell which you have.  And it is important to know, so your charge pump displacement, relief valve settings and shaft configuration are set correctly. The…

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  • Sundstrand Sauer Danfoss Series 40PV Auxiliary Mounting Flange & Shafts
    Sundstrand Sauer Danfoss Series 40PV Auxiliary Mounting Flange & Shafts
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    Sundstrand Sauer Danfoss Series 40PV Auxiliary Mounting Flange & Shafts   In the diagram and charts it explains the splines on the shaft Input shaft options Auxiliary mounting flange options Rear View Coupling options It goes into detail about each option, but if you need more information on this, please call us at 800-361-0068 or…

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  • Sundstrand Sauer Danfoss Series 20 How To Tell Good & Bad Shaft Seals
    Sundstrand Sauer Danfoss Series 20 How To Tell Good & Bad Shaft Seals
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    Sundstrand Sauer Danfoss Series 20 How To Tell Good & Bad Shaft Seals As you can see in diagram #1, it shows the correct shaft seals. How they are clear of nicks,burrs,grooves, contamination and fractures. In diagram #2 it shows the grooves in it mean there was excessive contamination. You can see this in the…

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  • Good and Bad Displacement Control Valves
    Good and Bad Displacement Control Valves
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    Good and Bad Displacement Control Valves In #1 diagram this is a picture of displacement control valve that is straight from the factory. These are factory adjusted,locked and sealed. They have a note on top of the valve…DO NOT DISTURB THIS ADJUSTMENT. There are some parts that can be removed with disturbing the spool adjustment:…

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  • Sundstrand Sauer Danfoss Series 20 Good and Bad Charge Pumps
    Sundstrand Sauer Danfoss Series 20 Good and Bad Charge Pumps
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    Sundstrand Sauer Danfoss Series 20 Good and Bad Charge Pumps In diagram #1 you can see it is excellent conditions. It has not marks, burrs so that there is no leaking or air getting into the system. And it should be free of contamination, so that it doesn’t get into your unit and cause more…

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  • Sundstrand Sauer Danfoss Series 40 Three Way EDC Control FNR
    Sundstrand Sauer Danfoss Series 40 Three Way EDC Control FNR
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    Sundstrand Sauer Danfoss Series 40 Three Way EDC Control FNR   The FNR (forward, neutral, reverse) EDC has a solenoid operated 3 way and 4 way valve to take the pump displacement from neutral to the highest level of displacement in either direction it goes in. When the solenoid is rived up, the charge pressure…

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