TM 10-3930-671-24 Refer to Section 9.0 Power Steering Lines. 8. Loosen and remove hydraulic steering lines from steering   cylinder.      Plug   fittings   and   cap   open ends of lines to prevent entrance of dirt. 9. Loosen    and    remove    nuts    from    silent    block mounting bolts, front and rear. NOTE Axle  must   be   supported   before   any other attaching fasteners are removed.  See Step 11. 10. If another lift truck is used to temporarily support axle    while    removing,    put    forks    in    center    of carriage   about   12   inches   apart.      Move   forks under axle and raise it just to remove its weight from mounting bolts.  Or use a portable floor jack to carefully support the axle at its center section. 11. Then,   remove   the   two   silent   block   mounting bolts.     Note     -     Shims,     if     installed,     may     be removed. 12. Lower   the   axle   allowing   its   weight   to   pull   the silent  blocks  out  of  frame  trunnions  (recesses). Watch  the  silent  blocks  to  be  sure  they  release freely   from   frame.      You   may   have   to   loosen blocks with a pry bar if they bind. 13. Carefully   withdraw   the   axle   from   beneath   the truck and move to safe storage. NOTE On some early models, removal of the silent   blocks   after   a   long   period   of usage    may    be    difficult.        Routine removal of the silent blocks from  the steer   axle   trunnions   (pivot   pins)   is not  recommended  unless  they  have obvious  wear  damage  or  failure.    If removal by conventional pulling methods is not successful, they  then must  be   removed   by   destruction   of the   silent   block   assembly   using   a cutting    torch    and/or    hammer    and chisel to separate them from the axle trunnions.        Be    sure    that    the    axle trunnions are not damaged. F-427