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Page Title: Assembly of Complete Transmission After Overhaul
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TM 5-4210-220-34 3-7. TRANSMISSION-Continued ae. Assembly of Complete Transmission After Overhaul (1) Coat the inside diameter of detent lever oil seal with petroleum jelly (item 21, Appendix B) and the outside diameter   with   seal   retainer   sealant   (item   26,   Appendix   B).      Install   the   oil   seal,      lip   first,   into   the transmission  housing.    Use  installer  J26282  to  properly  locate  the  seal  in  the  housing.    The  seal  must clear the chamfer in the housing. (2) Hold detent lever so that the selector valve pin extends toward the side of the housing.  Slide the manual shaft through the opening in the housing, oil seal, and slot in the detent lever. Install locknut and retainer pin. Tighten the locknut to 20 ft lb (27 Nm). (3) Install new breather if removed.  Torque to 16 ft lb (22 Nm). (4) Place transmission housing in a vertical position, rear upward. NOTE Two methods of checking clutch plate clearance have been established.  One method is by direct measurement.  The alternate method is by stack dimension computation.  Method one is detailed following. af. First Clutch Installation (1) Beginning with an external-tanged clutch plate (24), alternately install seven external-tanged,  and six internal-splined (25) first clutch plates. (2) Install  two  guide  bolts  (180  deg.    apart) into the transmission housing.  Aline and install    the    adapter    housing    assembly (14) and gasket (29). ag. Low Clutch Installation (1) Beginning with an external-tanged clutch plate,    alternately  install  seven  external- tanged and six internal-splined low clutch plates. (2) Install the rear cover assembly, previously    overhauled    ready    for    final assembly,  and  gasket  onto  the  rear  of the  transmission  housing  and  secure    it with          six’     1/2     -     13          bolts          and lockwashers,   evenly   spaced.      Tighten the  bolts  to  approximately  30  ft   lb   (41 Nm). (3) Invert   the   transmission,   front   upward. Using gage J24194, check the clearance between   the   low   clutch   plates.      It   is recommended the gage be placed between   the   adapter   housing   wall   and the   first   steel   plate.      The   prescribed clearance is 0.095 -0.145  in. (2.41 -3.68 mm).  Any dimension within 0.095-0.145 in. (2.41-3.68 mm) is satisfactory. Replace   worn   clutch   plates   with   -new plates to establish the desired clearance.          Recheck     the     clearance. 3-69

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