TM 9-2520-272-34&P 4-15. INSTALL LEFT END COVER ASSEMBLY (SHEET 4 OF 11) 18. Check bearing journal on range input drive gear (13) hub for damage.  Smooth out scratches with crocus cloth.  If grinding damage is present, replace gear (13). 19. Apply lubricating oil and petrolatum to bearing journals on each side of gear (13) if old bearings were removed. 20. Using arbor press, install new inner race (14).  Press to shoulder. NOTE Hydrostatic drive gear (15) may be installed either side first. 21 Using  arbor  press,  install  hydrostatic  drive  gear (15)  on  shaft  of  range  input  drive  gear  (13)  if gears were separated.  Press to shoulder. 22 Using arbor press, install new inner race (16) on journal  adjacent  to  hydrostatic  drive  gear  (15)  if old bearing was removed. 23 Check  that  cage  and  outer  race  (17)  for  inner race (16) is in the left end of center housing (2). Also  check  that  cage  and  outer  race  for  inner race (14) is in the left end cover. 24 Install   gear   assembly   (13,   15)   on   bevel   gear driven shaft (10) with hydrostatic drive gear (15) down. 25 Work  gear  assembly  (13,  15)  left  and  right  until inner splines on hydrostatic drive gear (15) mate with splines on bevel gear driven shaft (10)  and teeth  on  hydrostatic  drive  gear  (15)  mate  with teeth on hydrostatic idler gear (18). 26 Continue  to  work  gears  (13,  15)  left  and  right until  teeth  on  range  input  drive  gear  (13)  mate with teeth on range input driven gear (11). Go to Sheet 5 Para. 4-15, Task 1 Change 2  4-59