TM 10-3930-669-20 CHAPTER 13 STEERING SYSTEM MAINTENANCE Para Contents Page 13-1 Introduction.......................................................................................................................................... 13-1 13-2 Steering Column Replacement ............................................................................................................ 13-2 13-3 Steering Wheel Replacement....... ....................................................................................................... 13-8 13-4 Steering Pump Replacement ............................................................................................................... 13-10 13-5 Hub Replacement ............................................................................................................................... 13-14 13-6 Knuckle Replacement....  .................................................................................................................... 13-18 13-1.  INTRODUCTION. This chapter contains maintenance instructions for removing, replacing, and installing steering components authorized by the Maintenance Allocation Chart (MAC) at the Unit Maintenance level. 13-1