Here is the manual instructions.You will need a pulley removal tool to remove the pulley to gain access to the bolts that hold the pump in. Hope this helps.
On the 2.3L I-4 and 4.0L V-6 engines, slacken belt tension by lifting tensioner pulley in a counterclockwise direction. On Ranger 3.0L V-6 engines, slacken belt tension by lifting tensioner pulley in a clockwise direction. Remove drive belt from under tensioner pulley and slowly lower pulley to stop. Remove the drive belt from the power steering pump pulley.
NOTE: If the drive belt requires servicing, refer to Section 03-05.
NOTE: Do not apply pressure on the pump shaft. Pressure will damage internal thrust areas of the pump.