TM10-3930-660-34 7-4.  TRANSMISSION ASSEMBLY - REPLACE/REPAIR (Cont’d) o. Turn shaft assembly (50) over and repeat STEPS a-m. 2. ASSEMBLE   SECOND   STAGE   CLUTCH   PACK (47). a. Install  new  outer  piston  seal  (86)  onto  piston (84). b. Install   new   O-ring   (85)   onto   shaft   assembly (67). CAUTION Use  care  when  installing  piston  (84)  to  prevent  damage to O-ring (85) and outer piston seal (86). c. Install     assembled     piston     (84)     onto     shaft assembly (67).  Ensure that piston (84)  aligns with locating pins in shaft assembly (67). d. Install  thrust  washer  (83),    four  springs  (82) and retainer (80). WARNING Springs   (82)   are   under   tension.      Always   wear   safety glasses when working on compressed springs.  Carefully handle spring in compressed form.  Failure to follow this precaution could cause personal injury. e. Place shaft assembly (67) in a press.  Install a spring compressor tool. WARNING Ensure that retainer ring (81) is secure in groove before spring compressor tool is  removed  from  retainer  (80)  to prevent springs (82) from flying out.  Failure to follow this precaution could cause personal injury. 7-25