4-41. Cylinder Assembly.
This task covers: Replace
General Mechanics Automotive Tool Kit
Bay removed (para. 2-16).
(Item 1, Appendix B)
Tape, Antiseize (Item 19, Appendix E)
There are several models of cylinders. Replacement procedures are similar for all models.
a. Replace. (figure 4-46)
When working under boom, support boom by blocking or other suitable means.
(1) Raise boom (1) approximately 1 ft (30.48 cm) and block in position.
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray out
due to residual pressure in system.
When removing hoses, have a suitable container to drain oil from hoses.
immediately to prevent dirt or foreign matter from entering the system.
Remove two clamps (5) and support blocks (3) from cylinder (4).
Tag and remove two hydraulic lines (5) and (6) from cylinder (4).
Attach suitable lifting device to cylinder (4).
Remove two retaining rings (7) and clevis pin (8).
Remove two retaining rings (9), clevis pin (10), and cylinder (4).
Unscrew clevis (11) from cylinder (4).
Install clevis (11) on cylinder (4).
Align tube end of cylinder (4) with boom pivot struts and secure with
Also cap all hoses and ports
pin (10) and retaining
Align rod end of cylinder (4) with boom struts and secure with pin (8) and retaining rings (7).