TM 5-3805-260-24 BRAKE HEAD ASSEMBLES REMOVE BRAKE HEAD ASSEMBLIES Tools Needed A 8S7640 Stand I 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 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 Tools Needed A 8S7640 Stand I 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 hen 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 + 25Ib .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  com pletely 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 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    hy draulic   jack   used   to   lift   the   machine   for   tire installation. end by: a) install tractor rim and tire 3-150