2008 Polaris ATV Outlaw 450/525 Service Manual, Page 124Get this manual
BODYSTEERINGSUSPENSION 5Remove the small button head screw from the pressure valve assembly7Remove the pressure valve assembly from the lower end mountAccount for an O-ringUsing slotted screwdriver, loosen the pressure valve assembly counter-clockwise two full revolutions allowing the gas pressure to fully escape past the pressure valve assembly O-ringWith an adjustable wrench, loosen and remove cylinder head assemblyWARNING
Nitrogen gas is under extreme pressureUse caution when releasing nitrogen gas from shockProtective eye wear should be worn to avoid risk of injury