5-31. MAIN FRAME CYLINDER REPLACEMENT (continued).
(8) Remove retaining ring (5), shim (6) and pin (7) from compression frame (8) and front of main frame
cylinder (1). Discard retaining ring.
(9) Remove main frame cylinder (1) from compression frame (8) and main frame (3) and lower to ground
with aid of assistant and lifting device.
(10) Remove lifting device from main frame cylinder (1).
b. Installation.
(1) Attach lifting device to main frame cylinder (1).
WARNING
Main frame cylinder weighs 325 lb (148 kg). Attach suitable lifting device prior to
installation to prevent possible injury to personnel.
Use care when installing retaining rings. Retaining rings are under tension and can
act as projectiles when released and could cause severe injury.
(2) Position main frame cylinder (1) on compression frame (8) and main frame (3) with the aid of an assistant
and a lifting device.
(3) Install shim (6) and pin (7) in compression frame (8) and front of main frame cylinder (1) with new
retaining ring (5).
NOTE
Pull out or push in cylinder rod to align holes for pin installation.
(4) Install shim (6) and pin (7) in main frame (3) and rear of main frame cylinder (1) with new retaining ring
(5).
(5) Remove lifting device from main frame cylinder (1).
c. Follow-on Maintenance:
Install main frame manifolds (para 5-24).
If hook arm cylinders are installed, raise main frame to remove wooden block.
END OF TASK
5-169/(5-170 blank)
