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Sundstrand Series 90-55cc Swashplate Bearing Cage Locator Pin Change

This change will affect these models, 90-55, 75 and 100cc variable pumps. They added a rubber gripping element on the pin that goes in the main pump housing. It helps in retaining the pin in the housing while in normal pump assy. It also helps in servicing parts, maximizing the interference fit that is between …

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Cessna Hydraulic Pump Repair

Our Cessna hydrostatic pumps and motors are rebuilt and tested to manufacturer specifications. Each unit comes with a warranty. You may also be interested in our exchange program. To reduce your down-time, we have a hydrostatic exchange program. We will ship you a quality tested and warranted rebuilt unit in “short-time”. We also offer an installation …

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John Deere Crawler 655B/755B – Charge Pump Removal & Installation

When putting on a charge pump you will need to know if it is right or left hand. On a left hand charge pump has the transmission control pump. You can take out the charge pump without taking out the transmission. Make sure you clean the transmission before you take out the charge pump. Take …

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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 130cc Swashplate Lever Improvements

Sundstrand improves the swashplate leveler and spring seat. It used to be two springs, now it is four. And you cannot get these parts any longer, nor are they available for service parts either. Below you can see what parts have been affected. or 800-361-0068 Email us at tupelohydraulics@gmail.com

Rexroth Hydraulic Cylinders and Repair Kits

Rexroth Hydraulic Cylinders 1 1/2″ – 14″ Bore and Repair Kits In the diagrams and charts you will find the bore sizes and repair kits for this. On the bore chart if you see a (t) like symbol by it, it means the quantity may be more depending on mounting and bore size. All the …

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Sundstrand 90 Series 55cc Swashplate Leveler Spring Seat and Servo Pressure Relief Valve Change

One of the changes made is that there will be shims go in between the swashplate leveler springs and the end cap in the pump. They have changed the leveler spring seats into a hardened piece, so there are two pieces now. Use to the seats were made into the leveler. This will make a …

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Parker Torquemotor – General Information

The series of motors that this is for are the TF, TG, TH and TL. They have a industrial strength thru and roller bearing for loads that the capacity is two sided loads. The roller vanes are made to cut down on friction and leakage, and give the best performance. The TF Series The way …

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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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