TM10-3930-660-34 7-4.  TRANSMISSION ASSEMBLY - REPLACE/REPAIR (Cont’d) f. Press down on spring compressor tool and retainer (80) to allow installation of retainer ring (81). Slowly remove spring compressor tool. CAUTION Carefully handle clutch plates (74) so graphite coating doesn’t   flake   off.      Failure   to   follow   this   precaution could cause equipment damage. g. Install     six     clutch     plates     (74)     and     six separator  plates   (75)   into   shaft   assembly (67).  Begin with a separator plate (75) and then    a    clutch    plate    (74).    Continue    by alternating plates. The last plate must be a clutch plate (74). NOTE The   separator   plates   (75)   have   external   teeth   and clutch  plates  (74)  have  internal  teeth.    The plates do not have a right or wrong side for installation. h. Install retainer (73) on shaft assembly (67). i. Install snap ring (120). j. Install   appropriate   pair   of   alignment   bars between weld  gear  (70)  and  piston  (84)  as required  to  hold  weld  gear  (70)  off  piston (84).  Use either narrow or wide side of bars to  ensure  that  weld  gear  (70)  is  held  off piston   (84)   1/8"   and   at   the    same    time engages all clutch plates (74). k. If removed,  install snap ring (72) in weld gear (70). l. Install weld gear (70) on shaft assembly (67). 7-26