steering box adjustment

My Chilton manual says;

Remove the center link from the pitman arm. Start the engine and allow it to run at idle speed.

Back off the adjusting screw until backlash is felt in the in the steering gear arm (pitman arm).
Determine the backlash by grasping the end of the arm with your fingers.
Tighten the adjusting screw until no backlash is felt, tighten 3/8 to 1/2 turn further and torque the locknut to 28 ft lbs.

AND DON"T BURN YOURSELF!