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REBUILD AIR SPRING CARTRIDGE
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17. Use a 19/24 mm wrench to loosen the seal head. Slide the cylin-
der tube off the air spring.
18. Remove the two old o-rings (00638-86) from the upper air
chamber cylinder tube.
19. Install two new o-rings (00638-86) on the upper air chamber
cylinder tube. Apply assembly grease on o-rings.
20. Remove the old o-ring (18637-01) from the piston.
21. Remove the the two old back-up rings (18556-03).
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