TM 5-3825-226-24 BRAKE HEAD ASSEMBLIES REMOVE BRAKE HEAD ASSEMBLIES 4256-11 Tools Needed A 8S7640 Stand 1 8S7611 Tube 1 8S7615 Pin 1 8S8048 Saddle 1 start by: a) remove tractor rim and tire 1. Remove   the   hydraulic   jack   used   to   lift   the machine  to  remove  the  tire.    Install  tooling  (A) for safety. 2. Disconnect  brake  line  (1)  from  the  brake  head assembly. 3. Remove  the  bolts  that  hold  the  anchor  pins  in position.    Pull  the  anchor  pins  out  of  the  head assembly .75 in.  (19.05 mm). NOTE: If  necessary,  push  the  brake  linings from  the  wheel  disc  to  remove  the brake head assembly. 4. Install   two   3/8"-16   NC   forged   eyebolts   in   the brake   head   assembly   and   fasten   a   hoist   as shown. 5. Remove the eight bolts that hold the brake head assembly to the axle housing. INSTALL BRAKE HEAD ASSEMBLIES 4256-12 Tools Needed A 8S7640 Stand 1 8S7611 Tube 1 8S7615 Pin 1 8S8048 Saddle 1 1. Fasten a hoist to the brake head assembly with two 3/8"-16 NC forged eyebolts. 2. Put  two  of  the  bolts  that  hold  the  brake  head assembly  to  the  axle  housing  in  the  center  two holes of the brake head assembly bracket. CAUTION: Make  sure  the  two  anchor  pins  and friction   pads   are   held   in   position when   the   brake   head   assembly   is installed. 3. Put the brake head  assembly in position on the machine and tighten the bolts to a torque of 225 ± 25 lb. ft.  (300 ±  35 N-m). 4. Remove the forged eyebolts and hoist from the brake head assembly. 5. Push    the    anchor    pins    into    the    brake    head assembly.    Make  sure  there  is  .010  in.    (0.25 mm) or more distance between the anchor pins and NOTE: The   center   two   bolts   can   not   be removed  completely  because  of  the clearance   between   the   brake   head assembly  and  the  brake  line  guard. Remove  these  bolts  with  the  brake head assembly. 6. Remove  the  brake  head  assembly.    Weight  of the brake head assembly is 90 lb.  (41 kg). CAUTION: The    two    anchor    pins    and    brake linings   are   free   to   fall   out   of   the brake   head   assembly   and   must   be held in position. wheel   disc.      Install   the   two   bolts   to   hold   the anchor pins. 6. Connect    the    brake    line    to    the    brake    head assembly. 7. Remove (bleed) the air from the hydraulic brake system.    See  AIR  REMOVAL  FROM  BRAKES in TESTING AND ADJUSTING. 8. Remove   tooling   (A).      Put   into   position   the hydraulic  jack  used  to  lift  the  machine  for  tire installation. end by: a) install tractor rim and tire 3-150