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John Deere Crawler 755B Track Roller

Posted by Tammy Soper on

John Deere Crawler 755B Track Roller When doing the assembly align the dowel pins with the bushing holes and press bushing into the case. If they want line up, use the following instructions.Heat the bushing case (3) to 300 degrees before putting it in. This will make the bushing case expand out, letting the alignment holes in bushing flange with the dowel pin in bushing case.Take out the dowel pin, turn bushing 90 degrees to have it line up,The oil holes in bushing with holes in bushing case.Now press bushing in case. Drill a .308in dia. hole .25 inches deep...

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Lubrication for Bearings

Posted by Tammy Soper on

Lubrication for Bearings t our Hydrostatic Pump Repair Site, we offer many types of Hydrostatic Transmission Repair and information relating to Hydrostatic PartsToday we will discuss Bearing Lubrication and the Reasons for Lubrication There are four functions a lubricant must perform to ensure that a bearing will provide good service: Maintain an unbroken film between metal surfaces.Prevent excessive friction and the resulting increase in temperature.Conduct heat away from the bearing’s surfaces.Remain stable under severe operating conditions. Severe operating conditions are temperature, humidity and vibration. The right selection of a lubricant is usually based on four conditions; Load Speed Temperature Environoment...

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Denison Barrel and Stroking Assy to Mounting Flange

Posted by Tammy Soper on

Denison Barrel and Stroking Assy to Mounting Flange To start the assembly you need to put the straight thread connectors and rings into the threaded holes in the cradle.Then put the right and left hand pressure feed tubes to the connectors and make sure they are tightened.Place the mounting flange in a way that they facing up over the large opening, then put in the two dowel pins in the cradle mounting surface along the four sleeves in the outer edge of the flange.Install the rocker cams and the cradle assembly of the dowel pins in the flange.Since the cam...

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Sundstrand Sauer Danfoss Series 90 – End Cap Ports

Posted by Tammy Soper on

Sundstrand Sauer Danfoss Series 90 – End Cap Ports This diagram shows the end cap ports for the 55cc,75cc and the 100cc. These are for the side port and the twin ports on a variable pump. If you need additional information on this, please call or comment on this site and we will be glad to get with you on it. 800-361-0068 Email: sales@hydrostatic-transmission.com

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Axial Piston Over Center Hydraulic Motors

Posted by Tammy Soper on

Today we will discuss; Over Center Axial Piston Motors Some of the swashplates on axial piston motors have the capacity of crossing over center. When it is able to do that, it can reverse its shaft rotation without changing the direction of flow thru the motor. In the picture associated with this text, you will see that the motor shaft is not shown, but you can maybe see that it could be attached to the cylinder barrel at the port plate end or thru the swashplate side. You can see thru the pictures, that altering the angle of the swashplate...

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