TM 5-5420-209-343-8. Cylinder Assembly (Locking Cylinder).This task covers:a. Testb. RepairINITIAL SETUPToolsEquipment Condition:General Mechanic’s T00l KitCylinder assembly removed (locking(NSN 5180-00-177-7033)cylinder) (TM 5-5420-209-12).Materials/PartsSolvent, Dry Cleaning (Item 2, Appendix B)Rags, Wiping (Item 5, Appendix B)a. Test.(1) Using suitable mounting equipment, secure locking cylinder with hydraulic ports in upwardposition.(2) Connect hydraulic pressure source to mounting end of tube assembly and return line to clevisend.WARNINGWhen disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oilmay spray out due to residual pressure in systemNOTEBleed locking cylinder in both the retracted andhydraulic oil leakage.extended position. There shall be no(3) Actuate cylinder assembly through at least two full cycles, using hydraulic leak test pressure of3,000 psi (211.1 2 kg/sq cm) for a period of three minutes at each end of cylinder.(4) Inspect cylinder for deformation, rupture of any parts, extended leakage, chatter or binding.3 - 9
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