2004 Bombardier DS650/DS650 Baja/DS650 Baja X Shop Manual, Page 210Get this manual
Section 08 SUSPENSION Subsection 03 (REAR SUSPENSION)
Reinstall valve pin in reservoir valveShock Absorber Wrap shock absorber in rag to collect oil overflow while installing piston rodApply shock absorber oil on piston seal ringPour oil in shock absorber so that it is filled to 34Carefully insert piston rod in shock absorberCAUTION: Be careful not to damage piston seal on shock absorber edgeSlowly push piston into shock absorber to prevent compressing the bladderApply short stroke of slight up and down movement to allow air to pass through piston stack assemblyGently tap with clean soft hammer on the shock eye to dislodge air trapped in the submerged pistonBe careful not to drive the shaft any deeper into the oil than it is necessary to just cover the piston stackBe also careful to maintain oil above piston stackOtherwise repeat the operationFill shock absorber up to 10 mm (38 in) below circlip grooveSeal carrier assembly can now be pushed into bodyThis should be done slowly ensuring some oil flows out to ensure no air is trapped inside shock absorberPush down just enough to secure C-clipAfter the seal carrier is completely installed, avoid pushing the piston rod into the body until the nitrogen charge is added