3-8. Cylinder Assembly (Locking Cylinder).
This task covers:
General Mechanics T00l Kit
Cylinder assembly removed (locking
cylinder) (TM 5-5420-209-12).
Solvent, Dry Cleaning (Item 2, Appendix B)
Rags, Wiping (Item 5, Appendix B)
(1) Using suitable mounting equipment, secure locking cylinder with hydraulic ports in upward
(2) Connect hydraulic pressure source to mounting end of tube assembly and return line to clevis
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil
may spray out due to residual pressure in system
Bleed locking cylinder in both the retracted and
hydraulic oil leakage.
extended position. There shall be no
(3) Actuate cylinder assembly through at least two full cycles, using hydraulic leak test pressure of
3,000 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