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POWER STEERING GEAR REPLACEMENT - TM-5-4210-229-14P_302
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POWER STEERING PUMP REPLACEMENT - TM-5-4210-229-14P_304
TM5-4210-229-14&P 4-182.  PITMAN SHAFT SEALREPLACEMENT. This task covers: a.  Removal b.  Installation INITIAL SETUP Tools General Mechanics Tool Kit Drift Materials/Parts Power Steering Fluid (Appendix D, Item 19) Seal Kit (As Required, Appendix E, Figure E-136) Crocus Cloth (Appendix D, Item 12) Solvent (Appendix D, Item 54) Grease (Appendix D, Item 22) Equipment Condition Para.  Condition Description 4-176 Pitman Arm Removed General Safety Instructions Engine OFF. Transmission in (N) neutral. Parking brake set. REMOVAL a. Position a drain pan under the steering gear. b. Remove  protector  boot  (1),  grease  fitting  (2)  and dirt and water seal (3). Discard protector boot and dirt and water seal. c. Clean   the   sector   shaft   (4)   with   a   crocus   cloth (Appendix   D,   Item   12).   Be   sure   to   remove   any paint. d. Remove   the   four   trunnion   cover   bolts   (5)   and trunnion  cover  (6).  Then  remove  and  discard  the sector    shaft     seal     package     consisting     of     the two-piece sector shaft seal (7), the Teflon back-up washer (8) and the trunnion cover seal ring (9). Cleaning  solvent  (Appendix  D,  Item  54)  is  both  toxic and    flammable.    Keep    off    skin.    Use    only    in    a well-ventilated  area  and  avoid  prolonged  breathing  of vapors. Keep away from open flames. e. Clean the trunnion cover (6) with solvent (Appendix D, Item 54) and inspect the seal cavity and sealing face for nicks or corrosion. Replace the trunnion cover (6) with a new one if these conditions exist. INSTALLATION a. Place  the  trunnion  cover  (6)  on  a  bench  to  install the new seal package. Start with the Teflon backup washer (8). The words OIL SIDE must be visible on the seal after it is  in  place.  The  seal  will  not  function  if  the  seal  is reversed   and   a   loss   of   power   steering   assist   may occur. b. Install the two-piece sector shaft seal (7) so that the words OIL SIDE are visible after seal is in place. c. Grease the new trunnion cover seal ring (9) and install it into the cover groove. d. Cover the serrations of the sector shaft (4) with only one layer of tape to avoid damaging the seals during installation. e. Install the trunnion cover (6) and four trunnion bolts (5). Torque bolts to 15-22 ft-lb (20- 30 N.m) if dry or 11-16 ft-lb (15-22 N.m) if lubricated. f. Pack clean high temperature grease (Appendix D, Item 22) around seal area of sector shaft (4). Install a new dirt and water seal (3) using a suitable blunt end drift. g. Apply   a   generous   amount   of   the   same   grease (Appendix D, Item 22) to the protector boot (1) in the area  inside  of  the  small  diameter  ring.    Assemble protector   boot   onto   sector   shaft   (4)   and   trunnion cover (6) locating the grease fitting hole toward the input   shaft   end   of   gear   assembly.   Insert   grease fitting  (2)  into  protector  boot.    Remove  tape  from sector shaft serrations. h. Install the pitman arm (paragraph 4-176). i. Fill the steering fluid system (Appendix D, Item 19) (paragraph 4-180) and bleed system as needed. 4-197

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