1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 455Get this manual
TRACK AND REAR SUSPENSION
3If necessary, pull the eyelet to extend the rod (21, Figure 19)4Clamp the body (34, Figure 19) in special holding fixture (part No0644-158) or equivalent5Unscrew the cap (23, Figure 19), then lift the rod, cap and piston assembly from the body6Loosen, but do not remove, the nut (5, Figure 19)NOTE Do not mix the order of the valve plates (washers)The number, size and order of the valve plates determines dampening actionThe valve and piston can be cleaned and inspected after loosening the retaining nut, while leaving the valve and piston on the rodIf additional disassembly is required, keep these parts in the correct order to aid in reassembly
Rebuildable Shock Absorbers DisassemblyAssemblyCharging Some models are equipped with rebuildable gas-filled shock absorbers (Figures 19-21)The unit shown in Figure 19 is equipped with an external reservoirThe unit shown in Figure 20 is equipped with an external reservoir and cockpit controlThe units shown in Figure 19 and Figure 20 are used in the forward position of the rear suspension on certain modelsThe unit shown in Figure 21 is equipped with an integral reservoirWhile these units are similar, service procedures are differentRefer to the appropriate following procedures for the type of shock absorber being servicedCAUTION The shock absorber is charged with nitrogen gas under high pressureWear eye protection and use extreme caution whenever you are working with high pressure gasDo not attempt any service before releasing all pressure