2009 Arctic Cat 400/500/550/700/550/700/1000 ATV Service Manual, Page 311Get this manual
NOTE: To assure proper seating of the axle, give it light pull; the axle should remain "clipped" in place 2Swing the knuckle up and onto the drive axle; then place the knuckle into place in the upper A-armSecure the knuckle to the A-arm with cap screw and new lock nutTighten to 35 ft-lb (400500H1 models) or to 50 ft-lb (H2 models)3Place the hub into position on the axle followed by hex nutTighten the hex nut finger-tight at this timeCD023
6Making sure the marks made during disassembling align, slide the housing over the bearing ring; then completely seat the bearing ring into the housing and install the circlipNOTE: Pull the bearing ring out of the housing until it contacts the circlip; then slide the ring in half wayThis will purge air from the housing and ensure the bearing is packed properly
4If the brake calipers were removed, position them on the knuckle and secure with existing cap screwsTighten the auxiliary brake caliper cap screws to 20 ft-lbTighten the hydraulic brake caliper cap screws to 20 ft-lb5Pump up the hand brake lever; then engage the brake lever lock6Tighten the hub hex nut (from step 3) to 200 ft-lb; then install and spread new cotter pin making sure each side of the pin is flush to the hub nut