TORQMOTOR ASSEMBLY PROCEDURES (Reference Exploded Assembly View) Replace all seals and seal rings with new ones each time you reassemble the Torqmotor unit.   Lubricate  all  seals  and  seal rings with SAE 10W40 oil or clean grease before assembly. NOTE Individual seals and seal rings as well as a  complete  seal  kit  are  available.    The parts  should  be  available  through  most OEM parts distributors or Ross approved Torqmotor   distributors.      (Contact   your local dealer for availability.) NOTE Unless otherwise indicated, do not oil or grease parts before assembly. Wash all parts in clean petroleum-based solvents   before   assembly.      Blow   them dry  with  compressed  air.    Remove  any paint  chips  from  mating  surfaces  of  the end cover, sleeve, and housing and from port and sealing areas. HOUSING BEARING REPLACEMENT PROCEDURES 1. If bearing components were removed for replacement,  assemble  new  thrust  washer  (8),  new thrust bearing (9) and new thrust washer (8A) in that order   into   housing   161   bearing   cavity.      If   thrust washer  (8A)  has  a  chamfer  on  the  inside  diameter, the   chamfered   side   must   face   away   from   thrust bearing (9). NOTE Thrust  washer  (8A)  will  be  identical  to thrust   washer   (8)   unless   a   chamfered inside  diameter  is  required  because  of coupling shaft design. NOTE: An     appropriate     size     piloted     bearing mandrel  is  required  to  press  in  housing bearings. 2. If bearings (10) and (12) required are for a 2.25 inch (57.2 mm)l diameter (nominal) housing bearing bore, press  in  new  bearing  (10)  which  is  1.0  inch  (25.4 mm) long, into housing 161 bearing bore to a depth of  2.410 ±  .010  inch  (61.2  ±   0.254  mm),  measured from the housing wear plate contact surface .   Then, press in new bearing (12) which is .5 inch (12.7 mm) long  into  housing  bearing  bore  to  a  depth  of  .115 ± .010   inch   (2.92  ±   0.254   mm)   measured   from   the housing wear plate contact surface. NOTE Press against the lettered end of bearing cage  when  pressing  in  a  roller  bearing assembly. 3. If the bearings (10) and (12) required are for a 2.50 inch   (63.5   mm)   diameter   nominal)   bearing   bore, press  in  new  bearing  (10)  which  is  1.0  inch  (25.4 mm) long into housing 161 bearing bore to a depth of 2.379  ±   .010  inch  (60.43  ±   0.254   mm)   measured from housing wear plate contact surface .   Press new bearing  (12)  which  is  identical  to  bearing  (10)  into housing bearing bore to a depth of .115  ±  .010 inch (2.92 ±  0.254 mm) measured from the housing wear plate surface. NOTE The    bearings    (10)    and    (12)    must    be assembled    to    the    correct    depths    to assure     the     necessary     clearance     for thrust   washer   (8A)   and   thrust   bearing (13)    and    to    assure    required    bearing support. TORQMOTOR ASSEMBLY. If the sealing diameter of the coupling shaft (11) is larger than any  other  diameter  on  the  output  end  of  the  coupling  shaft, begin the Torqmotor assembly procedures with Step 1 below . If there is a diameter on the output end of the coupling shaft equal  to  the  sealing  diameter  of  the  coupling  shaft  begin  the procedures with Step 6 below. 1. Place   housing   (6)   in   a   vise   and   clamp   down   on housing port bosses with small bore end pointed up . Apply  clean  grease  to  new  seal  (5)  and  assemble into housing with seal lip pointed inward. 2. Hold washer (4) between thumb and index finger and slightly  collapse  to  facilitate  assembly  into  housing (6). 3. Assemble  back-up  washer  (3)  in to  housing  (6)  with the anti-rotation tab facing out. 4. Select a new retaining ring (2) from the seal kit, that is the same thickness as the retaining ring removed. Assemble  the  new  retaining  ring  into  housing  16) . Be   sure   rounded   edge   of   retaining   ring   is   faced inward and that back-up washer tab is between ends of retaining ring. 5. Apply a small amount of clean grease to back side of new seal (1) and assemble into housing (6), if a seal Ill is required. 6. Invert housing (6) in vise so that the large bore end is up. 7. Apply  cellophane  tape  around  splines  or  keyway  on coupling shaft (11) to prevent damaging seals. 8. Assemble    coupling    shaft    (11),    firmly    seating    it against thrust washer (8A). 9. Assemble  thrust  bearing  (13)  onto  end  of  coupling shaft (11). 10. Assemble drive link (14) into coupling shaft (11) with their  splines  in  mesh.   (Align  hole  in  drive  link  with hole in coupling shaft (11), if applicable.) NOTE Two    alignment    studs    screwed    finger tight into housing (6) boltholes, approximately   180^o   apart,   will   facilitate the assembly and alignment of components as required in the following procedures.    The  studs  can  be  made  by cutting  off  the  heads  of  318-24  UNF  2A bolts   that   are   over   .5   inch   (12.7   mm) longer   than   the   bolts   (24)   used   in   the Torqmotor. 11. Assemble  wear  plate  1151  over  drive  link  (14)  and studs onto housing (6). 12. Install  assembled  rotor  set  (16)  with  counterbore  in rotor (16A) down, if applicable, and splines in mesh with drive link splines. NOTE If  necessary,  go  to  "Rotor,  Stator,  Vane Assembly" procedures on page 9. 13. Assemble manifold plate (17), manifold (18) and then the commutator ring (21) over the drive link (14) onto rotor  set  (16)  per  the  exploded  assembly  view.   Be sure swirls in manifold and manifold plate are faced together. 8