| 1. Loosen 8 Socket Head Cap Screws (SHCS) (Part #16) to remove Head (Part #1), Cap (Part #8), Piston/Rod Assembly (Part #9 & #10), and Cushion Block(s) (Part #6) if cylinder is cushioned. 2. Carefully remove old seals and wearband (Part #2, #7*, #11, #14). Depending on the cylinder type, piston seal(s) and wearband will vary. Any damage to the industrial seal grooves may result in leakage. 3. Lubricate new seals and Wearband (Part #14) with supplied Numatics' Lube. Examine seals before installing for any contamination. Contamination may cause leakage. 4. Install Piston Seal(s) (Part #11). Depending on the cylinder type, piston seal(s) will vary. Make sure the piston seal is not twisted inside groove. If cylinder type is P or Q, install back-up rings (Part #12). See Seal Installation Guide. 5. Install lubricated wearbands onto piston/rod assembly if cylinder type is P. Sink piston assembly into sinker tube. See Sinker Tube Part Numbers Chart. 6. Apply lube inside the cylinder tube. 7. Sink piston/rod assembly into cylinder tube. 8. Press piston/rod assembly flush with the cylinder tube. Wipe off any lube from the face of the piston. 9. Place Tube End Seals (Part #2) into head and cap seal grooves. Examine seals after installing for any contamination. Contamination may cause leakage. 10. Lightly grease Rod seal (Part #4) in the supplied loaded head before reassembling the cylinder. This will ease the installation of the head overthe rod. 11. Reassemble cylinder except for the loaded head. Loosely torque cap end SHCS to allow cap to rotate slightly. Carefully place loaded head over the rod until getting interference. With a twisting motion, slide the loaded head down over the rod. 12. Loosely torque head end SHCS to allow head to rotate slightly. 13. Before final torque, place cylinder on level surface to square head and cap. Torque SHCS in a crisscross pattern. Use the following chart for torque tolerances. 14. Stroke cylinder by hand. This will enable detection of any binding. If binding does occur, repeat steps 11-14. |