2007 Arctic Cat Four-Stroke Factory Service Manual, Page 453Get this manual
0739-642
739-992A
! WARNING
The spring brackets must be adjusted equallyImproper adjustment of the spring brackets may result in binding in the articulating suspensionUpon completing the adjustment, there must be at least two full threads behind the lock nuts
! NOTE: To aid in centering the front arm with the hole in the tunnel, position the skid frame and track at 45 angle to the bottom of the tunnel
4Elevate the rear of the skid frame and the track into position in the tunnel5Align the pivot idler arm assembly with the appropriate hole in the tunnelSecure the pivot idler arm assembly with cap screw, lock washer, and flat washerDO NOT TIGHTEN AT THIS TIME! NOTE: Do not install the short legs of the rear springs onto the adjusting cams at this time
Installing Skid Frame
1Place piece of cardboard on the floor to protect against scratching and tip the snowmobile onto one side2Pull the track away from the tunnel and spread open; then place the skid frame into the track3Position the front of the skid frame into the tunnel and align the front arm with the appropriate mounting hole in the tunnelInsert the cap screw with washers through the tunnel mounting hole and through the front armDO NOT TIGHTEN AT THIS TIMERepeat this procedure on the other side