News and Helpful Videos

9965 cotton picker hydrostatic pump

Posted by Tammy Soper on

What exactly is a Cotton Picker? A cotton harvester is a machine that collects cotton bolls. Mechanical cotton harvesters are classified into two types: strippers and pickers. Stripper harvesters remove all of the plant's leaves and stems, as well as any open or closed bolls. The unwanted material is then removed at the gin using specialized equipment. Strippers perform best after a frost has cleared away the green vegetative growth. JOHN DEERE INFORMATION According to the 2019 Fortune 500 ranking, it was ranked 329th globally and 87th in America. The company also conducts related operations, such as financial services. As...

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Sundstrand Sauer Danfoss Series 40 Charge Relief Valve

Posted by Tammy Soper on

Sundstrand Sauer Danfoss Series 40 Charge Relief Valve A charge pressure relief valve is a relief outlet for charge pressure. It sets how the flow goes thru the valve that is ported to the case.The valve for the M25,M35 and M44 is a flat poppet valve. The M46 is a c one poppet.The factory set pressure is 1800 rev/min in neutral position. And it takes in account of the spout speeds and what is needed for the control.If you don’t have a charge pump on there the pump is set at 191 min.and they need to have sufficient charge flow...

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Sundstrand Sauer Danfoss Series 40 Retention Method for Check Valves

Posted by Tammy Soper on

Sundstrand Sauer Danfoss Series 40 Retention Method for Check Valves As always improving their parts, this is no different, Sauer is changing it’s ways to check its valve assemblies. It will use the retention technique. The older method let the check valve and SCR valve assy. to be disassembled. The new way of doing this is that the retaining ring can’t hang up on the valve and it want let it be put together either.All repairs you do now require that the conversions, purchased of a check valve have the whole assembly be exchanged.The new and old are interchangeable. There...

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Sundstrand Sauer Danfoss Series 90 Charge Pump Shaft Key Change

Posted by Tammy Soper on

Sundstrand Sauer Danfoss Series 90 Charge Pump Shaft Key Change The charge pump shaft key and woodruff key have been changed on the 42cc models.Reasons for the change is that the new key is smaller in design and helps get rid of a conflict problem.The old charge pump shaft will no longer be available, nor for service parts either.They are interchangeable if it is in the affected serial number range and if they are replaced together. If you need more info on this, please let us know.800-361-0068sales@hydrostatic-transmission.com

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Hydraulic Solenoid Operated Relief Valve

Posted by Tammy Soper on

At our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss: Hydraulic Solenoid Operated Relief Valve – Venting The solenoid A is inspired by joining the vent port of the main relief to the tank. By putting the pilot pressure, the pressure holding the speed closed is the obvious light pressure of the spring. This in turns lets the pump which is applying a conscientiously low amount of pressure to the return in it’s flow to the tank. We would love to hear your input on the subject....

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