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Page Title: Clutch spline alignment.
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TM5-4210-229-14&P 6-15 TRANSMISSION REPAIR (Continued) (9) Clutch spline alignment. Align the internal  splines of the third clutch plates to the   external   splines   on   the   fourth   clutch   housing. Grasp   the   fourth   clutch   assembly   by   the   spring retainer and install it onto the center support hub. (10)    Forward clutch and turbine shaft. (a) Align   the   internal-splined   plates   of   the fourth clutch,  and direct air into the fourth clutch  apply  port.    The  air  will  apply  the fourth  clutch  and  prevent  movement  of the     clutch     during     installation     of     the forward clutch assembly. (b) Be sure thrust bearing race assembly is in place,    black  oxide  race  (lube  scallops) facing  down  on  the  fourth  clutch  housing hub (22). (c) Install  the  forward  clutch  assembly  (20) while engaging the fourth clutch hub (22) within   the   internal-splined   plates   of   the fourth  clutch.    When  the  forward  clutch assembly   (20)   is   properly   seated,      the front     surface     of     the     forward     clutch housing   will   be   approximately   1/2   inch (12.7 mm) behind the forward edge of the PTO opening.  Another check is to apply air in short bursts to the fourth clutch and watch the forward clutch assembly for an up and down movement.  If the assembly does not move,  it is properly seated. b. Oil pump and front support installation. (1) Install the front support gasket.  Be sure the two hook  type  sealrings  at  the  base  of  the  turbine shaft  are  held  in  place  with  oil-soluble  grease (Appendix D,  Item 21). Improper installation of butt-joint sealrings may cause transmission failure. (2) Install thrust bearing race assembly onto the hub of support assembly black oxide race (lube scallops) up.  Install two butt-joint sealrings onto the hub.  Retain the bearing and sealrings with oil-soluble grease (Appendix D, Item 21). (3) Lubricate sealring with oil-soluble grease (Appendix   D,      Item   21)   and   install   it   onto support   assembly.      Install   two   3/8-16x6inch headless   guide   screws   into   the   transmission housing.      Attach   front   support   lifter   to   the converter ground sleeve.  Align all the holes in the front support with the corresponding holes in the  transmission  housing.    Index  two  of  these holes in the corresponding holes containing the two guide bolts and install the front support. 6-89

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