Quantcast a.  Armature  Assembly,  Bearings,  and  Drive  Assembly

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TM   9-2920-243-34 a.  Armature  Assembly,  Bearings,  and  Drive  Assembly, Point of measurement OD of drive end of armature shaft Armature commutator diameter OD of commutator end of armature shaft Brush length OD of lever housing bearing surface-of armature shaft Spring pressure at end of 0.400-in. travel and  Lever  Shaft. Diameter of lever shaft hole OD of lever shaft Fit of shaft in lever Rigging  Assembly. OD of bearing Diameter of bearing bore in commutator end housing Fit of bearing in housing ID of bearing Fit of armature shaft in bearing d. Pinion Housing Assembly. M OD of bearing N Diameter  of  bearing  bore  in  pinion  housing M-N Fit of bearing in housing P ID of bearing b-P Fit of armature shaft in bearing e. Shift  Housing  Assembly. R OD of bearing s ID of  bearing f-S Fit of armature shaft in bearing T Diameter of bearing bore in shift housing (hidden) R-T Fit of bearing in shift housing Sizes and fits of  new  parts 0.7465 to 0.7470 2.125 to 2.140 0.7495 to 0.7500 0.8125 0.8645 to 0.8650 18 lbs 0.5020  to  0.5050 0.4950  to  0.5010 0.0010L  to  0.0100L 0.002 to 1.003 0.998 to 1.000 0.001T  to  0.005T 0.752 to 0.754 0.0020L  to  0.0045L 1.002 to 1.003 0.999 to 1.001 0.001T  to  0.004T 0.749 to 0.751 0.0020L  to 0.0045L 1.127 to 1.128 0.874 to 0.876 0.0090L to 0.0115L 1.124 to 1.126 0.001T  to  0.004T Wear  limits 0.7469 2.0000 0.7490 0.312 0.8640 0.5100 0.4850 0.025L * * * 0.7595 0.0090L * * * 0.7560 0.0090L * 0.8810 0.0155L * * 3-21


 


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