• Sundstrand Series 90 130cc MDC Controls
    Sundstrand Series 90 130cc MDC Controls
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    The MDC control had to be changed so customers over seas could use this also. The manifold is joined to the front of the MDC housing. The solenoid valve needs a thicker manifold to give way between the solenoid and front of MDC housing, on the units in Europe. The newer manifold will stick out…

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  • Gilcrest After Market Hydraulic Parts
    Gilcrest After Market Hydraulic Parts
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    After market Gilcrest Hydraulic Parts is a subsidiary of Hydrostatic Transmission Service, LLC an after market Gilcrest hydraulic parts needs Company located in Tupelo, Mississippi. We specialize in the remanufacturing and marketing of new, used, surplus, and remanufactured Gilcrest Hydraulic rotating group parts such as Gilcrest pistons, Gilcrest cylinder blocks, and Gilcrest valve plates used…

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  • Sundstrand Series 40 SAE C Auxiliary Mounting Flange
    Sundstrand Series 40 SAE C Auxiliary Mounting Flange
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    The mounting flanges that are being changed are 130cc, 180cc and 250cc. It will have a more sealing improvements with a bigger cross section oring. The oring will seat down in the groove of the flange to go together. The sizes of the new is .103″ versus the old size .070″. It will have a…

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  • Series 40 M46 General Data Sheet On A Sundstrand Sauer Danfoss Tandem Unit
    Series 40 M46 General Data Sheet On A Sundstrand Sauer Danfoss Tandem Unit
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    Sundstrand Sauer Danfoss Series 40 M46 Data Sheet on a Tandem Pump Part 1 This technical data sheet tells all about a variable displacement pump and tandem pump.Breaks all the specs down for you. Like displacement, input speed, pressure, case pressure, input shaft and so much more.This is helpful if you are rebuilding your own…

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  • Vickers Hydraulic Motors and Pumps
    Vickers Hydraulic Motors and Pumps
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    REMINDER DO NOT USE LUBICATE IN ASSEMBLY OF THIS UNIT. PARTS NEED CLEAN HYDRAULIC FLUID DURING ASSEMBLY.  “O” RINGS AND SHAFT SEALS MAY BE GREASED WITH A VISCOSITY IMPROVER (STP OR EQUIVALENT) INSTALL SPACER AS NECASSARY TO PROVIDE. 001 TO. 003 SHAFTS PRELOAD.  SHAFT MUST BE TURNED UNDER PRELOAD, TO STRAIGHTEN BEARING ROLLERS AT BOTH…

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  • Sundstrand Series 90 55cc End Cap Gasket Change
    Sundstrand Series 90 55cc End Cap Gasket Change
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    They are changing the gasket so it will fit both the twin port and axial port end caps. Also, the older end cap gasket will no longer be available. Nor can you get them for service parts either. You can put the new end cap gasket on the vintage models. And you absolutely have to…

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  • Eaton Hydrostatic Parts and Eaton Hydrostatic Repair
    Eaton Hydrostatic Parts and Eaton Hydrostatic Repair
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    Pump’s reliability is considered to be 96% effectiveness.                 The highest pump shaft speed is based on the charge pump speed rating.                 The most swash plate angle on model 33 pumps is 15.5°.                 At the highest point of pressure it should not go beyond 1 % of operating time. Hydrostatic Transmission Service,LLC Offers…

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  • Sundstrand Series 45 L & K Open Circuit Pumps
    Sundstrand Series 45 L & K Open Circuit Pumps
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    They have a servo piston make up and a cradle swashplate with a journal bearing. The swashplate angle makes it enlarge with a bias spring and internal force. The swashplate angle diminishes with a servo piston. You have nine pistons move fluid from the pump inlet to the outlet, while the cylinder block goes around…

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  • Series 90-55cc Hydraulic Sundstrand Pump – Making Pump Changes
    Series 90-55cc Hydraulic Sundstrand Pump – Making Pump Changes
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    Sundstrand is making changes to their charge pumps. Reducing the amount of parts in units 55cc thru 100cc. Their distance plates are being done away with. Auxiliary pad on the new charge pump cover rely’s on rotation. The covers will have left or right on them. And non auxiliary pads do not rely on rotation….

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  • Sundstrand Series 90 Adjustable Charge Relief Valve Change
    Sundstrand Series 90 Adjustable Charge Relief Valve Change
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    It gives new design to the shim so that it will give different pressure adjustments that the charge pump can go. The settings on the charge pump are 290,348 and 406 PSI. It will improve the charge relief valve poppet and plug. The charge relief may go out from the pump about .27 inches. It…

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