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Sundstrand Series 90/55cc Charge Relief Valve

They are making the charge relief valve adjustable in a wide variety of pressure changes that are for 290m 348 and 406 PSI. It also changes the poppet and plug. It may stick out from the pump end cap alittle more than the older model. You will need to put in a gauge to tell […]

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Pneumatic Cylinders Standard Repair Kits on Rexroths

Rexroth Pneumatic Cylinders Standard Repair Kits There are several repair kits listed below and the larger one (6 in all). Show the parts that are included in each kit. The parts only come in kit form. You will need to have kit part number and cylinder part number when ordering replacement parts. We also can

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Sundstrand Series 90 Servo Arm Change

The new design is a press fit that goes into a groove in the new swashplate. It takes a special kind of machining for this so it will come as a kit. The parts are already assembled and used on 55, 75 and 100cc units. The parts will go in the vintage pumps. But the

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Sundstrand Series 90 – Changes to Block Point

At Sundstrand they are are striving to make alot of their parts better, which means Block Point changes. It will reduce the amount of parts being used or redesigning the part altogether. It will make the part more stable and last longer. And on older styles models most, if not all the parts you will

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End Cap Stroke Adjustment for Rexroth Hydraulic Units

When your unit needs an accurate cylinder stroke or other infrequent stroke lengths are needed, then this infringed position should be made mention for specific strokes. Also, you will need to take in account for the length of the stroke when you order. Cushioning is not on this model for the end cap when you

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General Information for T Seals

It is essential you know certain things before getting seal for whatever unit you are working on. You will need to know the pressure range, temperature range, maximum diametrical clearance and seal width. The main reason a seal wears out is the clearance gap. They can be pinched or cut into, if not seated properly. 

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