Use the following tools to disassemble the cylinder:
MEL 1074 – O-ring Seal Hook
Hold the hydraulic cylinder over a drain pan and move the rod in and out slowly to remove the fluid from the cylinder.
Put the base end of the cylinder in a vise.
Use a spanner wrench to loosen the head [Figure 20-22-5].
Remove the head and rod assembly from the cylinder [Figure 20-22-6].
Put the rod end in a vise.
Remove the nut (Item 1), piston (Item 2) and head (Item 3) [Figure 20-22-6] from the rod.
Piston: Remove the O-ring (Item 1), and seal (Item 2) from the piston (Item 3) [Figure 20-22-7].
Remove the wiper seal (Item 1), and rod seal (Item 2), the back-up washer (Item 3), the thin O-ring (Item 4) and
the thick O-ring (Item 5) [Figure 20-22-8] from the head.