2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 259Get this manual
Rear Suspension RYDE FX MONO-TUBE SHOCK DISASSEMBLY
Procedures for the proper disassembly and assembly of Ryde FX gas charged IFP and emulsion mono-tube shock absorbers7Depressurize the shock
WARNING
NITROGEN GAS IS UNDER EXTREME PRESSUREUSE
CAUTION WHEN RELEASING NITROGEN GAS FROM SHOCK
CAUTION
BEFORE SERVICING GAS SHOCK IT IS IMPORTANT THAT
ALL THE GAS PRESSURE BE DISCHARGED FROM THE UNIT
PROTECTIVE EYE WEAR SHOULD BE WORN TO AVOID RISK OF INJURYREFER TO THE INSTRUCTIONS LISTED BELOW FOR THE PROPER PROCEDURE OF DISCHARGING THE GAS PRESSURE FROM SHOCKPROTECTIVE EYE WEAR SHOULD BE WORN TO AVOID RISK OF INJURY WHILE SERVICING RYDEFX GAS CHARGED MONO-TUBE SHOCKS12Remove the shock(s) from the vehicleBefore unscrewing pre-load springs, measure the compressed length of the installed spring and mark position for reinstallationIf the shock incorporates spring, remove the spring and all collateral retainers3
CAUTION