TM 5-3895-374-24-13-4-8 Air CylinderRepair and Re-assembly. See figure 3-18.A. Disassembly1Remove the air cylinder from the installation. Disconnect air hose lines and cap hose ports to preventcontamination from entering the system.2.Clean the external parts of the cylinder.3.Remove the clevis (and jam nut If there is one) from the piston rod. Use a wrench on the piston rod flat so that therod is not damaged.4.Remove the four nuts on the tie rods at the rod end of the cylinder.5.Slide the head assembly off the piston rod6.The piston rod and piston can be removed from the cylinder.7.(Review the complete procedure before continuing ) Using a small screw driver, remove all seals In the head andon the piston.B Inspection1.Replace all seals in the cylinder if they are available. If not, inspect the seals prior to removal. Replace seals withcuts, breaks or that are worn.2.Thoroughly clean all the components. Use care not to damage or scratch any finished or polished surface.Carefully clean all cavities and grooves.3.Inspect the piston rod for damage or wear. Replace it is believed a good seal cannot be obtained after assembly4 Inspect the inside of the cylinder barrel for scars, wear or rust. thoroughly clean. It should not be necessary toreplace the cylinder barrel unless there has been contamination in the system. If the barrel Is damaged internally,replace If necessary and check the complete pneumatic system for causes of the contamination.C Assembly1.All parts should be lubricated with a good quality, clean lubricant prior to replacing.2.Install the seals onto the piston.page 3-641
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