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REMOVAL (cont) - TM-5-4210-220-12_682
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INSPECTION (cont) - TM-5-4210-220-12_684
TM 5-4210-220-12 4-30.  REAR AXLE - Continued INSPECTION (1) Inspect   anchor   pin   (A)   If   pin   is   loose   or grooved more than 0.03 in. (0.8 mm) below original surface, replace the spider. (2) Inspect brake shoes (1 and 2) and replace if lining is  contaminated, cracked or worn to less than 1/4 in. (6.4 mm) thickness at any point, or if  rivets are closer to surface than 1/16 in. (1.6 mm) in any location. (3) Check   brake   shoes   for   bent   or   cracked webs or table.  Check also for broken weld seams,    loose    rivets    or    elongated    rivet holes.      Replace   shoes   if   any   of   these conditions are found. (4) Check shoe span by measuring the distance D between centerlines of anchor pin and camshaft roller  recesses.    If  D  is  less  than  12  5/16  in. (312.7 mm) or more  than  12  9/16  in.  (319.1 mm) replace brake shoes. (5) Check anchor pin and camshaft roller recesses (B and C) for elongation or visible wear.  Replace brake shoes.  If diameter of roller recesses (C) have been enlarged to 7/8 in. (22.43 mm) or greater use a piece of 7/8 in. bar stock as a gage. (6) Inspect  camshaft  (13).    Check  for  damaged  or  worn  splines,  corroded  or  worn  bearing  journals,  and brinelling, cracks or flat spots on camshaft head.  Replace camshaft if worn or defective. NOTE To  carry  out  the  following  inspection  procedure  the  camshaft,  brake  spider,  air  chamber bracket,  and  slack  adjuster  including  normally  used  shim  washers  must  be  assembled  as shown. (7) Check   camshaft   end   play   as   detailed   in steps 8 thru 11 following (8) Mount   a   suitable   dial   indicator   with   the plunger   referencing   the   cam   head   at   90 deg. from cam face. (9)    Pull camshaft  inward, ie., cam head toward spider, to take up any end play and set dial indicator to zero. (10) Push camshaft outward and note maximum dial   indication.      The   end   play   measured should   be   0.005   -   0.045   in.   (0.13   -   1.14 mm). 4-571

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