TM 9-2520-272-34&P 4-29 REPAIR   CENTER   HOUSING   COMPONENTS (SHEET 31 OF 31) 50 Using  arbor  press,  install  sleeve  spacer  (tube) (5)  to  a  height  of  0.12  inch  (3.0  mm)  above  left side of center housing. 51 Using arbor press, install two pins (4) to a height of  0.38  inch  (9.7  mm)  above  left  side  of  center housing. WARNING Hot  parts  can  burn  you.    Always  wear leather  gloves  when  working  with  parts that are or might be hot. 52 Using  arbor  press,  install  oil  transfer  sleeve  (3) to a seat in its bore in left side of center housing. 53 Using  two  heat  guns,  heat  center  housing  near location  for  outer  race  and   rollers   (2)   for   one hour. WARNING Frozen   parts   can   stick   to   your   fingers and  cause  serious  injury.    Always  wear leather  gloves  when  working  with  parts that have been frozen in dry ice. 54 Freeze  new  outer  race  and  rollers  (2)  in  dry  ice for one hour. NOTE Later   manufactured   housing   assembly center    (machined)    will    have    a    plug installed  in  #42  hole,  installed  flush  to 0.100 below housing surface. This plug is not maintenance significant. If   plug   is   missing,   do   not   attempt   to install one. 55 Using   plastic   faced   hammer,   install   new   race and rollers (2) to a firm seat against the shoulder in the bore. 56 Allow center housing to return to room temperature. 57 Using  two  heat  guns,  heat  center  housing  near location for bearing race (1) for one hour. 58 Freeze  new  bearing  race  (1)  in  dry  ice  for  one hour. 59 Using plastic faced hammer, install new bearing race (1) into bore in center housing to a firm seat against the shoulder in the bore. 60 Allow center housing to return to room temperature. End of Task 8 Para.  4-29, Task 8 Change 2  4-221