Control Valve Centering Spring Adjustment
Raise vehicle and remove spring cap attaching screws and lock washers, remove the spring cap. Tighten adjusting nut snug (90-100 INCH Lbs.), then loosen nut 1/4 turn.
NOTE:
Make sure nut rotates 1/4 turn (90 degrees) on the threads of the bolt. Do not tighten the adjusting nut too tight.
Position spring cap to valve housing. Lubricate and install attaching screws and washers. Torque screws to 72-100 INCH lbs. Lower Vehicle, start engine and check turning effort with a spring scale. Spring scale attached to rim of steering wheel, the effort to turn wheel in both directions should not exceed 12 pounds.