TM   5-3895-376-14&P 5-23.  VIBRATOR  MAINTENANCE  INSTRUCTIONS  -  Continued 2. Ensure  that  all  gasket  material  is  removed  from mating surfaces of the bearing covers (12 and 13),  cover  (22)  and  housing  (50). INSPECTION 1. 2. 3. 4. 5. 6. Inspect shafts (42 and 49) for signs of burning at surfaces  where  bearings  fit. Inspect shaft (49) at surface for seal ring (14) for signs  of  wear. Inspect keys (9, 29 and 48) for sign of distortion or  shearing. Inspect pulley (8) for wear in v-belt groove as indi- cated by ridging on tapered surfaces of groove. Inspect threads of tapped holes in cover (22) and housing (50) for stripped condition Inspect all threaded fasteners for stripped threads. REPAIR 1. Repair of the vibrator assembly consists of re- placement of any part(s) found damaged in any way. 2. Install  all  new  gaskets,  seals  and  bearings. ASSEMBLY 1. Coat all parts with clean lubricating oil prior to as- sembly. C A U T I O N When handling roller bearings (25, 26 and 43), keep the bearing cups and the cone and rollers together in the same sets as received. Premature failure may result  if  sets  are  mixed. 2. Using  an  arbor  press  with  a  2.76  inch  (70  mm) 0.D. pressing sleeve, install bearing cups as fol- lows: NOTE Install all bearing cups so the wide face is facing the outside of the cover (22) or housing  (50).  The  70mm  O.D.  press sleeve is double ended with the two recess values  built  in. a. Press  cup  of  bearing  (26)  into  the  proper  bore of housing (50) so that the cup is recessed 0.079  inch  (2  mm)  from  the  outer  surface  of the  housing  (50). b. Press cups of bearings (25 and 43) into the proper  bores  of  housing  (50)  and  cover  (22) so that the cup is recessed 0.157 inch (4 mm) from  the  outer  surface  of  the  housing  and cover. 3. Assemble the fixed shaft (49) assembly as fol- lows: a. b. c. d. Using snap ring plier, install one retaining ring (44) in groove of shaft (49) nearest to the stepped  down  shoulder  for  pulley  (8). Install  key  (48)  in  key  slot  of  shaft  (49)  and slide weight (47), spacer (46) and spur gear (45) onto the shaft, engaging the key (48) in key slot of the parts and firmly against the  installed  retaining  ring  (44). Using snap ring plier, install the second retain- ing ring (44) in the exposed groove on shaft (49) next to the spur gear (45). Using an arbor press with a 1.25 inch (32 mm)  inside  diameter  pressing  sleeve,  install the  cone  and  rollers  of  bearings  (43)  onto  the ends  of  shaft  (49).  Ensure  that  the  large  di- ameter  end  of  the  cone  and  rollers  is  leading onto  the  shaft.  Seat  the  cone  and  rollers  fully against  the  shoulder  of  the  shaft. 4. Assemble  the  adjustable  shaft  (42)  assembly  as follows: a. If  ball  bearings  (39)  were  removed,  support the  flange  of  the  coupling  disks  (33)  on  block- ing and using a hand arbor press with a 2.60 inch  (66  mm)  diameter  pressing  sleeve  install the  ball  bearings  (39),  one  into  each  coupling 5-70