Reconditioning and Replacement of Parts
Passages are drilled in the servo piston to vent the upper servo cavity to the housing. If the motor is equipped to utilize control pressure on both sides of the servo piston, one of these passages is plugged with a mandrel expansion plug.
If the motor is equipped with an auxiliary drive, the shaft seal is pressed into the counter bore in the housing until it bottoms.
Variable motors are not equipped with a feed back spring pin in the swash-plate.
Motors with date code 86-41 and below use the servo spring seat as a minimum displacement stop. The seat is available in various thicknesses.
For motors with date code 86-42 and above, the minimum displacement stop is available in various lengths.
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