2003 Kioti CK20H Transmission pin spacers

[Drivenhard]

New to the forum, hoping one of you transmission (HST) wizards will be able to help me out. I have a 2003 Kioti CK20H tractor. The main shaft (Pump) spline teeth wore out and has to be replaced. In removing the piston block assembly from the swash plate, the spacer pins fell from the assembly. I have uploaded the parts exploded view of the trans with ref# to the part and description. Reference #21 refers to the pin,space (diagram-part description). 6 pins total. 3 for the HYD pump and 3 for the HYD motor.

I have a service manual as well which does not mention or show the pins anywhere. I have bought all of the necessary parts to complete the re-build but I surely don’t want to split the tractor apart again due to miss-placed pins. I’ve uploaded pics in hopes of someone being able to explain the correct position of these pins. Thanks in advance for taking the time to help me resolve my issue.

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[Harry in Ky]

It seems to me I've seen similar pins before in other hydrostats I've had apart. I think they went (three each) in the center of the rotating groups. They fit (equally spaced) in the splines between the cylinder and the shaft. They butted up against the back side of a spherical bearing (which I don't see in this diagram) I think on the swashplate side. I don't recall what brand unit that may have been. Possible Cessna.