Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 306Get this manual
REAR SUSPENSIONTRACKTRACTION Arvin Shock Maintenance
Procedures for the proper disassembly and assembly of RydeFX gas charged IFP and emulsion monotube shock absorbersPolaris PN 7041990, 7041992 WARNING: Before servicing gas shock it is important that all the gas pressure be discharged from the unitRefer to the instructions listed below for the proper procedure of discharging the gas pressure from shockProtective eyewear should be worn to avoid risk of injury while servicing RydeFX gas charged monotube shocksRemove the shock from the vehicleS If shock incorporates spring; remove spring and collateral retainers
NOTE: Before unscrewing preload springs, measure the compressed length of the installed spring and mark position for reinstallation(PICTURE 1) CAUTION: When removing the spring from shock that utilizes fixed lower retainer; the use of proper spring compressor should be used to avoid risk of bodily injuryWash the shock body in parts cleaner; then dry with compressed air to remove sand and dirtWARNING: When using compressed air to dry components, protective eyewear should be worn to avoid risk of injuryRemove bearing, sleeve andor bushings from lower shock mount eyeletSecure the lower mount of the shock in viseThe use of soft jaws is recommend to prevent damage or marks to the shock(PICTURE 2) 1