POS5I0021L Tech noted it looks like someone tried to adjust/check the nitrogen due to condition of the fill port possibly resulting in nitrogen loss. Performed service. Cleaned (additional cleaning time +$20.00). Seal heads rebuilt, or replaced as needed. Shims inspected and replaced as needed. Shaft inspected/polished, or replaced as needed. Replaced functional seals/bushings. Refilled with fresh oil. Set nitrogen pressure to spec. Dyno tested. MHAM