Hydrostatic Transmission Service | Page 54

Sundstrand Sauer Danfoss Series 40 Three Position Electric Displacement Control
June 14, 2017 Comments Off on Sundstrand Sauer Danfoss Series 40 Three Position Electric Displacement Control

Sundstrand Sauer Danfoss Series 40 Three Position Electric Displacement Control (FNR) The three position (FNR = forward neutral reverse) uses a solenoid operated three position, four way valve to move the pump displacement from neutral to its highest displacement in either direction. When a solenoid is at it’s peak the charge pressure is sent…
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Sundstrand Sauer Danfoss Direct Displacement Control Part 2
June 13, 2017 Comments Off on Sundstrand Sauer Danfoss Direct Displacement Control Part 2

Sundstrand Sauer Danfoss Direct Displacement Control Part 2 The direct displacement control are on variable pumps, tandem pumps and variable motors. When there is no external forces are put on the swashplate trunnion the internal hydraulic forces, sometimes will not return the swashplate to the neutral position under all conditions of the operation. On external…
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Sunstrand Sauer Danfoss Series 40 – Response Time
June 12, 2017 Comments Off on Sunstrand Sauer Danfoss Series 40 – Response Time

Sundstrand Sauer Danfoss Series 40 Response Time The response time is when the output flow has enough response time to change from neutral (acceleration) to full flow back to neutral (deceleration). It is a mode that has to do with the size of the supply orifice in the control inlet passage and the size of…
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Sundstrand Sauer Danfoss IHC Part 2
June 9, 2017 Comments Off on Sundstrand Sauer Danfoss IHC Part 2

Sundstrand Sauer Danfoss IHC Part 2 The integrated hydrostatic controller is a single microprocessor controller that is put in Series 42 & 90 pumps and 40 & 90 series motors. It tells the speed of the shaft thru sensors that are inside the IHC housing, while it provides one control output. It is preprogrammed…
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Sundstrand Sauer Danfoss IHC Part 1
June 8, 2017 Comments Off on Sundstrand Sauer Danfoss IHC Part 1

Sundstrand Sauer Danfoss IHC Part 1 The Integrated Hydrostatic Controller is a single strategy, microprocessor based controller specifically designed to be installed in Sauer Sundstrand Series 42 and 90 pumps. Along with 40 and 90 motors. The device senses pump or motor shaft speed thru Hall effect sensors integrated within the IHC housing and…
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Sundstrand Sauer Danfoss Series 40 Swashplate Shimming
June 7, 2017 Comments Off on Sundstrand Sauer Danfoss Series 40 Swashplate Shimming

Sundstrand Sauer Danfoss Series 40 Swashplate Shimming In this improvement to the swashplate is no longer necessary to have spacers and shims to get the right amount of torque to turn on the variable swashplate. The tolerances have changed due to the stack up parts that will give it enough for the preload on…
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Sundstrand Sauer Danfoss Series 40 KPP Pulse Pickup Block Point Change
June 2, 2017 Comments Off on Sundstrand Sauer Danfoss Series 40 KPP Pulse Pickup Block Point Change

Sundstrand Sauer Danfoss Series 40 KPP Pulse Pickup Block Point Change They have upgraded this from an E to a F, all the changes they made. Now it can be installed in all different kinds of pumps and motors. The wiring on the circuit board has been improved to withstand harsher conditions. You can…
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Sundstrand Sauer Danfoss Series 40 Neutral Adjustment Cap Screw
May 30, 2017 Comments Off on Sundstrand Sauer Danfoss Series 40 Neutral Adjustment Cap Screw

Sundstrand Sauer Danfoss Series 40 Neutral Adjustment Cap Screw As Sauer continues to make improvements to their products, this one is no exception. It is redesigning the neutral adjustment cap screw on M46 mechanical displacement control pumps and motors from a cap screw and star lock washer to a locking flange headed cap screw. And…
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John Deere 755B Crawler Inch Bolt & Cap Screw Torque Values
May 26, 2017 Comments Off on John Deere 755B Crawler Inch Bolt & Cap Screw Torque Values

John Deere 755B Crawler Inch Bolt & Cap Screw Torque Values Your manufactures specs on torque values, should be used instead of these. The chart shows a general set of values for certain applications. If you are using shear bolts (will fail under heavy loads) need to be replaced with better grades of bolts…
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John Deere Metric Series Four Bolt Flange Fitting
May 24, 2017 Comments Off on John Deere Metric Series Four Bolt Flange Fitting

John Deere Crawler 755B Service Instructions for Metric Series Four Bolt Flange Fittings You will need to clean all sealing surfaces (A). Look for any scratches or causes for leaks. Any coarseness will result in seal wear and extrusion, as well as out of flat will produce the same results. If you can’t polish out…
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