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10. Partially remove the air cylinder by pulling on the
cylinder from the back of the machine until the air
lines at the elbow fittings can be seen.
11. With the cylinder partially removed, disconnect the
airlines at the air cylinder elbow fittings.
12. Finish removing air cylinder.
13. On a bench, disassemble the air cylinder by remov-
ing the four long screws (404) that connect the two
cylinder blocks.
Clean and Inspect the Parts
14. Inspect the cylinder tube (416) and piston (419) for
scratches. Replace if necessary.
15. Using a clean dry cloth, remove any grease from the
inside of the tube (416), the outside of the
piston (419), and the cylinder rod (420).
16. Remove the two cylinder block o-rings (411) from
the blocks (417, 418) and replace.
17. Remove the piston o-ring (403) and replace.
18. Remove the cylinder rod (420) from the rod end
block (417).
19. Remove the rod o-ring (401) from the rod end
block (417) and replace.
20. Install high temperature lubricant grease
(part 115982) to the inside of the tube (416), the
outside of the piston (419), all the o-rings, and the
cylinder rod (420).
Re-Assemble the Air Cylinder
21. Reinstall the four long screws (404) that attach the
two drive blocks (417, 418) and torque to 350 in-lb
(39.5 N•m).
22. Insert the cylinder rod (420) through the hole in the
rod end cylinder block (417) and base frame.
23. Before the cylinder is completely in place, reconnect
the airlines to the cylinder block elbows fittings. Ver-
ify the correct airlines are connected.
24. Reinstall the four screws (108) that attach the cylin-
der rod end block (417) to the frame.
25. Reinstall the hex nuts (103, 100b, 100d) to the cylin-
der rod (420) and torque to 100 ft-lb (135 N•m).
313937A
26. Install the three screws (402) that attach the sole-
noid valves (407, 408) to the blind end block (418).
Torque to 41 in-lb (4.6 N•m).
Prepare Machine for Operation
27. Reattach the incoming power bracket (110) by rein-
stalling the two attachment screws (109).
28. Reconnect pressurized air input hose.
29. Operate the machine and ensure there are no air
leaks are found.
30. Install the shroud (107).
31. Install shroud screws.
32. Calibrate the machine.
Repair
23
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